| 1 | /* Process handling for Windows.
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| 2 | Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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| 3 | 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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| 4 | This file is part of GNU Make.
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| 5 |
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| 6 | GNU Make is free software; you can redistribute it and/or modify it under the
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| 7 | terms of the GNU General Public License as published by the Free Software
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| 8 | Foundation; either version 3 of the License, or (at your option) any later
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| 9 | version.
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| 10 |
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| 11 | GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
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| 12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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| 13 | A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU General Public License along with
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| 16 | this program. If not, see <http://www.gnu.org/licenses/>. */
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| 17 |
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| 18 | #include <config.h>
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| 19 | #include <stdlib.h>
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| 20 | #include <stdio.h>
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| 21 | #ifdef _MSC_VER
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| 22 | # include <stddef.h> /* for intptr_t */
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| 23 | #else
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| 24 | # include <stdint.h>
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| 25 | #endif
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| 26 | #include <process.h> /* for msvc _beginthreadex, _endthreadex */
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| 27 | #include <signal.h>
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| 28 | #include <windows.h>
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| 29 |
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| 30 | #include "sub_proc.h"
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| 31 | #include "proc.h"
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| 32 | #include "w32err.h"
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| 33 | #include "debug.h"
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| 34 |
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| 35 | static char *make_command_line(char *shell_name, char *exec_path, char **argv);
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| 36 | extern char *xmalloc (unsigned int);
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| 37 | #ifdef KMK
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| 38 | extern void kmk_cache_exec_image(const char *); /* imagecache.c */
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| 39 | #endif
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| 40 |
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| 41 | typedef struct sub_process_t {
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| 42 | intptr_t sv_stdin[2];
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| 43 | intptr_t sv_stdout[2];
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| 44 | intptr_t sv_stderr[2];
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| 45 | int using_pipes;
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| 46 | char *inp;
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| 47 | DWORD incnt;
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| 48 | char * volatile outp;
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| 49 | volatile DWORD outcnt;
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| 50 | char * volatile errp;
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| 51 | volatile DWORD errcnt;
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| 52 | pid_t pid;
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| 53 | int exit_code;
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| 54 | int signal;
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| 55 | long last_err;
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| 56 | long lerrno;
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| 57 | } sub_process;
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| 58 |
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| 59 | static long process_file_io_private(sub_process *pproc, BOOL fNeedToWait); /* bird */
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| 60 |
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| 61 | /* keep track of children so we can implement a waitpid-like routine */
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| 62 | static sub_process *proc_array[MAXIMUM_WAIT_OBJECTS];
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| 63 | static int proc_index = 0;
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| 64 | static int fake_exits_pending = 0;
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| 65 |
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| 66 | /*
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| 67 | * When a process has been waited for, adjust the wait state
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| 68 | * array so that we don't wait for it again
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| 69 | */
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| 70 | static void
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| 71 | process_adjust_wait_state(sub_process* pproc)
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| 72 | {
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| 73 | int i;
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| 74 |
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| 75 | if (!proc_index)
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| 76 | return;
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| 77 |
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| 78 | for (i = 0; i < proc_index; i++)
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| 79 | if (proc_array[i]->pid == pproc->pid)
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| 80 | break;
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| 81 |
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| 82 | if (i < proc_index) {
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| 83 | proc_index--;
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| 84 | if (i != proc_index)
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| 85 | memmove(&proc_array[i], &proc_array[i+1],
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| 86 | (proc_index-i) * sizeof(sub_process*));
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| 87 | proc_array[proc_index] = NULL;
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| 88 | }
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| 89 | }
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| 90 |
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| 91 | /*
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| 92 | * Waits for any of the registered child processes to finish.
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| 93 | */
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| 94 | static sub_process *
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| 95 | process_wait_for_any_private(void)
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| 96 | {
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| 97 | HANDLE handles[MAXIMUM_WAIT_OBJECTS];
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| 98 | DWORD retval, which;
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| 99 | int i;
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| 100 |
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| 101 | if (!proc_index)
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| 102 | return NULL;
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| 103 |
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| 104 | /* build array of handles to wait for */
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| 105 | for (i = 0; i < proc_index; i++) {
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| 106 | handles[i] = (HANDLE) proc_array[i]->pid;
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| 107 |
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| 108 | if (fake_exits_pending && proc_array[i]->exit_code)
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| 109 | break;
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| 110 | }
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| 111 |
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| 112 | /* wait for someone to exit */
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| 113 | if (!fake_exits_pending) {
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| 114 | retval = WaitForMultipleObjects(proc_index, handles, FALSE, INFINITE);
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| 115 | which = retval - WAIT_OBJECT_0;
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| 116 | } else {
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| 117 | fake_exits_pending--;
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| 118 | retval = !WAIT_FAILED;
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| 119 | which = i;
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| 120 | }
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| 121 |
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| 122 | /* return pointer to process */
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| 123 | if (retval != WAIT_FAILED) {
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| 124 | sub_process* pproc = proc_array[which];
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| 125 | process_adjust_wait_state(pproc);
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| 126 | return pproc;
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| 127 | } else
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| 128 | return NULL;
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| 129 | }
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| 130 |
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| 131 | /*
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| 132 | * Terminate a process.
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| 133 | */
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| 134 | BOOL
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| 135 | process_kill(HANDLE proc, int signal)
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| 136 | {
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| 137 | sub_process* pproc = (sub_process*) proc;
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| 138 | pproc->signal = signal;
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| 139 | return (TerminateProcess((HANDLE) pproc->pid, signal));
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| 140 | }
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| 141 |
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| 142 | /*
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| 143 | * Use this function to register processes you wish to wait for by
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| 144 | * calling process_file_io(NULL) or process_wait_any(). This must be done
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| 145 | * because it is possible for callers of this library to reuse the same
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| 146 | * handle for multiple processes launches :-(
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| 147 | */
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| 148 | void
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| 149 | process_register(HANDLE proc)
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| 150 | {
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| 151 | if (proc_index < MAXIMUM_WAIT_OBJECTS)
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| 152 | proc_array[proc_index++] = (sub_process *) proc;
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| 153 | }
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| 154 |
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| 155 | /*
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| 156 | * Return the number of processes that we are still waiting for.
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| 157 | */
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| 158 | int
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| 159 | process_used_slots(void)
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| 160 | {
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| 161 | return proc_index;
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| 162 | }
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| 163 |
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| 164 | /*
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| 165 | * Public function which works kind of like waitpid(). Wait for any
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| 166 | * of the children to die and return results. To call this function,
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| 167 | * you must do 1 of things:
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| 168 | *
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| 169 | * x = process_easy(...);
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| 170 | *
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| 171 | * or
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| 172 | *
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| 173 | * x = process_init_fd();
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| 174 | * process_register(x);
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| 175 | *
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| 176 | * or
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| 177 | *
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| 178 | * x = process_init();
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| 179 | * process_register(x);
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| 180 | *
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| 181 | * You must NOT then call process_pipe_io() because this function is
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| 182 | * not capable of handling automatic notification of any child
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| 183 | * death.
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| 184 | */
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| 185 |
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| 186 | HANDLE
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| 187 | process_wait_for_any(void)
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| 188 | {
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| 189 | sub_process* pproc = process_wait_for_any_private();
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| 190 |
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| 191 | if (!pproc)
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| 192 | return NULL;
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| 193 | else {
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| 194 | /*
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| 195 | * Ouch! can't tell caller if this fails directly. Caller
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| 196 | * will have to use process_last_err()
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| 197 | */
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| 198 | #ifdef KMK
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| 199 | (void) process_file_io_private(pproc, FALSE);
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| 200 | #else
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| 201 | (void) process_file_io(pproc);
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| 202 | #endif
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| 203 | return ((HANDLE) pproc);
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| 204 | }
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| 205 | }
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| 206 |
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| 207 | long
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| 208 | process_signal(HANDLE proc)
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| 209 | {
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| 210 | if (proc == INVALID_HANDLE_VALUE) return 0;
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| 211 | return (((sub_process *)proc)->signal);
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| 212 | }
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| 213 |
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| 214 | long
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| 215 | process_last_err(HANDLE proc)
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| 216 | {
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| 217 | if (proc == INVALID_HANDLE_VALUE) return ERROR_INVALID_HANDLE;
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| 218 | return (((sub_process *)proc)->last_err);
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| 219 | }
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| 220 |
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| 221 | long
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| 222 | process_exit_code(HANDLE proc)
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| 223 | {
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| 224 | if (proc == INVALID_HANDLE_VALUE) return EXIT_FAILURE;
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| 225 | return (((sub_process *)proc)->exit_code);
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| 226 | }
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| 227 |
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| 228 | /*
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| 229 | 2006-02:
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| 230 | All the following functions are currently unused.
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| 231 | All of them would crash gmake if called with argument INVALID_HANDLE_VALUE.
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| 232 | Hence whoever wants to use one of this functions must invent and implement
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| 233 | a reasonable error handling for this function.
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| 234 |
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| 235 | char *
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| 236 | process_outbuf(HANDLE proc)
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| 237 | {
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| 238 | return (((sub_process *)proc)->outp);
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| 239 | }
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| 240 |
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| 241 | char *
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| 242 | process_errbuf(HANDLE proc)
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| 243 | {
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| 244 | return (((sub_process *)proc)->errp);
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| 245 | }
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| 246 |
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| 247 | int
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| 248 | process_outcnt(HANDLE proc)
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| 249 | {
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| 250 | return (((sub_process *)proc)->outcnt);
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| 251 | }
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| 252 |
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| 253 | int
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| 254 | process_errcnt(HANDLE proc)
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| 255 | {
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| 256 | return (((sub_process *)proc)->errcnt);
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| 257 | }
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| 258 |
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| 259 | void
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| 260 | process_pipes(HANDLE proc, int pipes[3])
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| 261 | {
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| 262 | pipes[0] = ((sub_process *)proc)->sv_stdin[0];
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| 263 | pipes[1] = ((sub_process *)proc)->sv_stdout[0];
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| 264 | pipes[2] = ((sub_process *)proc)->sv_stderr[0];
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| 265 | return;
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| 266 | }
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| 267 | */
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| 268 |
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| 269 | HANDLE
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| 270 | process_init()
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| 271 | {
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| 272 | sub_process *pproc;
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| 273 | /*
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| 274 | * open file descriptors for attaching stdin/stdout/sterr
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| 275 | */
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| 276 | HANDLE stdin_pipes[2];
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| 277 | HANDLE stdout_pipes[2];
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| 278 | HANDLE stderr_pipes[2];
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| 279 | SECURITY_ATTRIBUTES inherit;
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| 280 | BYTE sd[SECURITY_DESCRIPTOR_MIN_LENGTH];
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| 281 |
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| 282 | pproc = malloc(sizeof(*pproc));
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| 283 | memset(pproc, 0, sizeof(*pproc));
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| 284 |
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| 285 | /* We can't use NULL for lpSecurityDescriptor because that
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| 286 | uses the default security descriptor of the calling process.
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| 287 | Instead we use a security descriptor with no DACL. This
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| 288 | allows nonrestricted access to the associated objects. */
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| 289 |
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| 290 | if (!InitializeSecurityDescriptor((PSECURITY_DESCRIPTOR)(&sd),
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| 291 | SECURITY_DESCRIPTOR_REVISION)) {
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| 292 | pproc->last_err = GetLastError();
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| 293 | pproc->lerrno = E_SCALL;
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| 294 | return((HANDLE)pproc);
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| 295 | }
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| 296 |
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| 297 | inherit.nLength = sizeof(inherit);
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| 298 | inherit.lpSecurityDescriptor = (PSECURITY_DESCRIPTOR)(&sd);
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| 299 | inherit.bInheritHandle = TRUE;
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| 300 |
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| 301 | // By convention, parent gets pipe[0], and child gets pipe[1]
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| 302 | // This means the READ side of stdin pipe goes into pipe[1]
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| 303 | // and the WRITE side of the stdout and stderr pipes go into pipe[1]
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| 304 | if (CreatePipe( &stdin_pipes[1], &stdin_pipes[0], &inherit, 0) == FALSE ||
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| 305 | CreatePipe( &stdout_pipes[0], &stdout_pipes[1], &inherit, 0) == FALSE ||
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| 306 | CreatePipe( &stderr_pipes[0], &stderr_pipes[1], &inherit, 0) == FALSE) {
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| 307 |
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| 308 | pproc->last_err = GetLastError();
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| 309 | pproc->lerrno = E_SCALL;
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| 310 | return((HANDLE)pproc);
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| 311 | }
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| 312 |
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| 313 | //
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| 314 | // Mark the parent sides of the pipes as non-inheritable
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| 315 | //
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| 316 | if (SetHandleInformation(stdin_pipes[0],
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| 317 | HANDLE_FLAG_INHERIT, 0) == FALSE ||
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| 318 | SetHandleInformation(stdout_pipes[0],
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| 319 | HANDLE_FLAG_INHERIT, 0) == FALSE ||
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| 320 | SetHandleInformation(stderr_pipes[0],
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| 321 | HANDLE_FLAG_INHERIT, 0) == FALSE) {
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| 322 |
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| 323 | pproc->last_err = GetLastError();
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| 324 | pproc->lerrno = E_SCALL;
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| 325 | return((HANDLE)pproc);
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| 326 | }
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| 327 | pproc->sv_stdin[0] = (intptr_t) stdin_pipes[0];
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| 328 | pproc->sv_stdin[1] = (intptr_t) stdin_pipes[1];
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| 329 | pproc->sv_stdout[0] = (intptr_t) stdout_pipes[0];
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| 330 | pproc->sv_stdout[1] = (intptr_t) stdout_pipes[1];
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| 331 | pproc->sv_stderr[0] = (intptr_t) stderr_pipes[0];
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| 332 | pproc->sv_stderr[1] = (intptr_t) stderr_pipes[1];
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| 333 |
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| 334 | pproc->using_pipes = 1;
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| 335 |
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| 336 | pproc->lerrno = 0;
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| 337 |
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| 338 | return((HANDLE)pproc);
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| 339 | }
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| 340 |
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| 341 |
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| 342 | HANDLE
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| 343 | process_init_fd(HANDLE stdinh, HANDLE stdouth, HANDLE stderrh)
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| 344 | {
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| 345 | sub_process *pproc;
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| 346 |
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| 347 | pproc = malloc(sizeof(*pproc));
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| 348 | memset(pproc, 0, sizeof(*pproc));
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| 349 |
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| 350 | /*
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| 351 | * Just pass the provided file handles to the 'child side' of the
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| 352 | * pipe, bypassing pipes altogether.
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| 353 | */
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| 354 | pproc->sv_stdin[1] = (intptr_t) stdinh;
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| 355 | pproc->sv_stdout[1] = (intptr_t) stdouth;
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| 356 | pproc->sv_stderr[1] = (intptr_t) stderrh;
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| 357 |
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| 358 | pproc->last_err = pproc->lerrno = 0;
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| 359 |
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| 360 | return((HANDLE)pproc);
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| 361 | }
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| 362 |
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| 363 |
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| 364 | static HANDLE
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| 365 | find_file(const char *exec_path, const char *path_var,
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| 366 | char *full_fname, DWORD full_len)
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| 367 | {
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| 368 | HANDLE exec_handle;
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| 369 | char *fname;
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| 370 | char *ext;
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| 371 | DWORD req_len;
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| 372 | int i;
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| 373 | static const char *extensions[] =
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| 374 | /* Should .com come before no-extension case? */
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| 375 | { ".exe", ".cmd", ".bat", "", ".com", NULL };
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| 376 |
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| 377 | fname = xmalloc(strlen(exec_path) + 5);
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| 378 | strcpy(fname, exec_path);
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| 379 | ext = fname + strlen(fname);
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| 380 |
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| 381 | for (i = 0; extensions[i]; i++) {
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| 382 | strcpy(ext, extensions[i]);
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| 383 | if (((req_len = SearchPath (path_var, fname, NULL, full_len,
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| 384 | full_fname, NULL)) > 0
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| 385 | /* For compatibility with previous code, which
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| 386 | used OpenFile, and with Windows operation in
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| 387 | general, also look in various default
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| 388 | locations, such as Windows directory and
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| 389 | Windows System directory. Warning: this also
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| 390 | searches PATH in the Make's environment, which
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| 391 | might not be what the Makefile wants, but it
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| 392 | seems to be OK as a fallback, after the
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| 393 | previous SearchPath failed to find on child's
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| 394 | PATH. */
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| 395 | || (req_len = SearchPath (NULL, fname, NULL, full_len,
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| 396 | full_fname, NULL)) > 0)
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| 397 | && req_len <= full_len
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| 398 | && (exec_handle =
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| 399 | CreateFile(full_fname,
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| 400 | GENERIC_READ,
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| 401 | FILE_SHARE_READ | FILE_SHARE_WRITE,
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| 402 | NULL,
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| 403 | OPEN_EXISTING,
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| 404 | FILE_ATTRIBUTE_NORMAL,
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| 405 | NULL)) != INVALID_HANDLE_VALUE) {
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| 406 | free(fname);
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| 407 | return(exec_handle);
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| 408 | }
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| 409 | }
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| 410 |
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| 411 | free(fname);
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| 412 | return INVALID_HANDLE_VALUE;
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| 413 | }
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| 414 |
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| 415 |
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| 416 | /*
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| 417 | * Description: Create the child process to be helped
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| 418 | *
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| 419 | * Returns: success <=> 0
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| 420 | *
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| 421 | * Notes/Dependencies:
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| 422 | */
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| 423 | long
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| 424 | process_begin(
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| 425 | HANDLE proc,
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| 426 | char **argv,
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| 427 | char **envp,
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| 428 | char *exec_path,
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| 429 | char *as_user)
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| 430 | {
|
|---|
| 431 | sub_process *pproc = (sub_process *)proc;
|
|---|
| 432 | char *shell_name = 0;
|
|---|
| 433 | int file_not_found=0;
|
|---|
| 434 | HANDLE exec_handle;
|
|---|
| 435 | char exec_fname[MAX_PATH];
|
|---|
| 436 | const char *path_var = NULL;
|
|---|
| 437 | char **ep;
|
|---|
| 438 | char buf[256];
|
|---|
| 439 | DWORD bytes_returned;
|
|---|
| 440 | DWORD flags;
|
|---|
| 441 | char *command_line;
|
|---|
| 442 | STARTUPINFO startInfo;
|
|---|
| 443 | PROCESS_INFORMATION procInfo;
|
|---|
| 444 | char *envblk=NULL;
|
|---|
| 445 | #ifdef KMK
|
|---|
| 446 | size_t exec_path_len;
|
|---|
| 447 | #endif
|
|---|
| 448 |
|
|---|
| 449 |
|
|---|
| 450 | /*
|
|---|
| 451 | * Shell script detection... if the exec_path starts with #! then
|
|---|
| 452 | * we want to exec shell-script-name exec-path, not just exec-path
|
|---|
| 453 | * NT doesn't recognize #!/bin/sh or #!/etc/Tivoli/bin/perl. We do not
|
|---|
| 454 | * hard-code the path to the shell or perl or whatever: Instead, we
|
|---|
| 455 | * assume it's in the path somewhere (generally, the NT tools
|
|---|
| 456 | * bin directory)
|
|---|
| 457 | */
|
|---|
| 458 |
|
|---|
| 459 | #ifdef KMK
|
|---|
| 460 | /* kmk performance: Don't bother looking for shell scripts in .exe files. */
|
|---|
| 461 | exec_path_len = strlen(exec_path);
|
|---|
| 462 | if (exec_path_len > 4
|
|---|
| 463 | && exec_path[exec_path_len - 4] == '.'
|
|---|
| 464 | && !stricmp(exec_path + exec_path_len - 3, "exe")) {
|
|---|
| 465 | exec_handle = INVALID_HANDLE_VALUE;
|
|---|
| 466 | exec_fname[0] = '\0';
|
|---|
| 467 | }
|
|---|
| 468 | else {
|
|---|
| 469 | #endif /* KMK */
|
|---|
| 470 | /* Use the Makefile's value of PATH to look for the program to
|
|---|
| 471 | execute, because it could be different from Make's PATH
|
|---|
| 472 | (e.g., if the target sets its own value. */
|
|---|
| 473 | if (envp)
|
|---|
| 474 | for (ep = envp; *ep; ep++) {
|
|---|
| 475 | if (strncmp (*ep, "PATH=", 5) == 0
|
|---|
| 476 | || strncmp (*ep, "Path=", 5) == 0) {
|
|---|
| 477 | path_var = *ep + 5;
|
|---|
| 478 | break;
|
|---|
| 479 | }
|
|---|
| 480 | }
|
|---|
| 481 | exec_handle = find_file(exec_path, path_var,
|
|---|
| 482 | exec_fname, sizeof(exec_fname));
|
|---|
| 483 | #ifdef KMK
|
|---|
| 484 | }
|
|---|
| 485 | #endif
|
|---|
| 486 |
|
|---|
| 487 | /*
|
|---|
| 488 | * If we couldn't open the file, just assume that Windows will be
|
|---|
| 489 | * somehow able to find and execute it.
|
|---|
| 490 | */
|
|---|
| 491 | if (exec_handle == INVALID_HANDLE_VALUE) {
|
|---|
| 492 | file_not_found++;
|
|---|
| 493 | }
|
|---|
| 494 | else {
|
|---|
| 495 | /* Attempt to read the first line of the file */
|
|---|
| 496 | if (ReadFile( exec_handle,
|
|---|
| 497 | buf, sizeof(buf) - 1, /* leave room for trailing NULL */
|
|---|
| 498 | &bytes_returned, 0) == FALSE || bytes_returned < 2) {
|
|---|
| 499 |
|
|---|
| 500 | pproc->last_err = GetLastError();
|
|---|
| 501 | pproc->lerrno = E_IO;
|
|---|
| 502 | CloseHandle(exec_handle);
|
|---|
| 503 | return(-1);
|
|---|
| 504 | }
|
|---|
| 505 | if (buf[0] == '#' && buf[1] == '!') {
|
|---|
| 506 | /*
|
|---|
| 507 | * This is a shell script... Change the command line from
|
|---|
| 508 | * exec_path args to shell_name exec_path args
|
|---|
| 509 | */
|
|---|
| 510 | char *p;
|
|---|
| 511 |
|
|---|
| 512 | /* Make sure buf is NULL terminated */
|
|---|
| 513 | buf[bytes_returned] = 0;
|
|---|
| 514 | /*
|
|---|
| 515 | * Depending on the file system type, etc. the first line
|
|---|
| 516 | * of the shell script may end with newline or newline-carriage-return
|
|---|
| 517 | * Whatever it ends with, cut it off.
|
|---|
| 518 | */
|
|---|
| 519 | p= strchr(buf, '\n');
|
|---|
| 520 | if (p)
|
|---|
| 521 | *p = 0;
|
|---|
| 522 | p = strchr(buf, '\r');
|
|---|
| 523 | if (p)
|
|---|
| 524 | *p = 0;
|
|---|
| 525 |
|
|---|
| 526 | /*
|
|---|
| 527 | * Find base name of shell
|
|---|
| 528 | */
|
|---|
| 529 | shell_name = strrchr( buf, '/');
|
|---|
| 530 | if (shell_name) {
|
|---|
| 531 | shell_name++;
|
|---|
| 532 | } else {
|
|---|
| 533 | shell_name = &buf[2];/* skipping "#!" */
|
|---|
| 534 | }
|
|---|
| 535 |
|
|---|
| 536 | }
|
|---|
| 537 | CloseHandle(exec_handle);
|
|---|
| 538 | }
|
|---|
| 539 |
|
|---|
| 540 | flags = 0;
|
|---|
| 541 |
|
|---|
| 542 | if (file_not_found)
|
|---|
| 543 | command_line = make_command_line( shell_name, exec_path, argv);
|
|---|
| 544 | else
|
|---|
| 545 | command_line = make_command_line( shell_name, exec_fname, argv);
|
|---|
| 546 |
|
|---|
| 547 | if ( command_line == NULL ) {
|
|---|
| 548 | pproc->last_err = 0;
|
|---|
| 549 | pproc->lerrno = E_NO_MEM;
|
|---|
| 550 | return(-1);
|
|---|
| 551 | }
|
|---|
| 552 |
|
|---|
| 553 | if (envp) {
|
|---|
| 554 | if (arr2envblk(envp, &envblk) ==FALSE) {
|
|---|
| 555 | pproc->last_err = 0;
|
|---|
| 556 | pproc->lerrno = E_NO_MEM;
|
|---|
| 557 | free( command_line );
|
|---|
| 558 | return(-1);
|
|---|
| 559 | }
|
|---|
| 560 | }
|
|---|
| 561 |
|
|---|
| 562 | if ((shell_name) || (file_not_found)) {
|
|---|
| 563 | exec_path = 0; /* Search for the program in %Path% */
|
|---|
| 564 | } else {
|
|---|
| 565 | exec_path = exec_fname;
|
|---|
| 566 | }
|
|---|
| 567 |
|
|---|
| 568 | /*
|
|---|
| 569 | * Set up inherited stdin, stdout, stderr for child
|
|---|
| 570 | */
|
|---|
| 571 | GetStartupInfo(&startInfo);
|
|---|
| 572 | #ifndef KMK
|
|---|
| 573 | startInfo.dwFlags = STARTF_USESTDHANDLES;
|
|---|
| 574 | #endif
|
|---|
| 575 | startInfo.lpReserved = 0;
|
|---|
| 576 | startInfo.cbReserved2 = 0;
|
|---|
| 577 | startInfo.lpReserved2 = 0;
|
|---|
| 578 | startInfo.lpTitle = shell_name ? shell_name : exec_path;
|
|---|
| 579 | #ifndef KMK
|
|---|
| 580 | startInfo.hStdInput = (HANDLE)pproc->sv_stdin[1];
|
|---|
| 581 | startInfo.hStdOutput = (HANDLE)pproc->sv_stdout[1];
|
|---|
| 582 | startInfo.hStdError = (HANDLE)pproc->sv_stderr[1];
|
|---|
| 583 | #else
|
|---|
| 584 | if ( pproc->sv_stdin[1]
|
|---|
| 585 | || pproc->sv_stdout[1]
|
|---|
| 586 | || pproc->sv_stderr[1]) {
|
|---|
| 587 | startInfo.dwFlags = STARTF_USESTDHANDLES;
|
|---|
| 588 | startInfo.hStdInput = (HANDLE)pproc->sv_stdin[1];
|
|---|
| 589 | startInfo.hStdOutput = (HANDLE)pproc->sv_stdout[1];
|
|---|
| 590 | startInfo.hStdError = (HANDLE)pproc->sv_stderr[1];
|
|---|
| 591 | } else {
|
|---|
| 592 | startInfo.dwFlags = 0;
|
|---|
| 593 | startInfo.hStdInput = 0;
|
|---|
| 594 | startInfo.hStdOutput = 0;
|
|---|
| 595 | startInfo.hStdError = 0;
|
|---|
| 596 | }
|
|---|
| 597 | #endif
|
|---|
| 598 |
|
|---|
| 599 | if (as_user) {
|
|---|
| 600 | if (envblk) free(envblk);
|
|---|
| 601 | return -1;
|
|---|
| 602 | } else {
|
|---|
| 603 | DB (DB_JOBS, ("CreateProcess(%s,%s,...)\n",
|
|---|
| 604 | exec_path ? exec_path : "NULL",
|
|---|
| 605 | command_line ? command_line : "NULL"));
|
|---|
| 606 | #ifdef KMK
|
|---|
| 607 | if (exec_fname[0])
|
|---|
| 608 | kmk_cache_exec_image(exec_fname);
|
|---|
| 609 | else if (exec_path)
|
|---|
| 610 | kmk_cache_exec_image(exec_path);
|
|---|
| 611 | else if (argv[0])
|
|---|
| 612 | kmk_cache_exec_image(argv[0]);
|
|---|
| 613 | #endif
|
|---|
| 614 | if (CreateProcess(
|
|---|
| 615 | exec_path,
|
|---|
| 616 | command_line,
|
|---|
| 617 | NULL,
|
|---|
| 618 | 0, /* default security attributes for thread */
|
|---|
| 619 | TRUE, /* inherit handles (e.g. helper pipes, oserv socket) */
|
|---|
| 620 | flags,
|
|---|
| 621 | envblk,
|
|---|
| 622 | 0, /* default starting directory */
|
|---|
| 623 | &startInfo,
|
|---|
| 624 | &procInfo) == FALSE) {
|
|---|
| 625 |
|
|---|
| 626 | pproc->last_err = GetLastError();
|
|---|
| 627 | pproc->lerrno = E_FORK;
|
|---|
| 628 | #ifdef KMK
|
|---|
| 629 | if (pproc->last_err == ERROR_FILE_NOT_FOUND)
|
|---|
| 630 | pproc->exit_code = 127; /* see execve failure in job.c. */
|
|---|
| 631 | #endif
|
|---|
| 632 | fprintf(stderr, "process_begin: CreateProcess(%s, %s, ...) failed.\n",
|
|---|
| 633 | exec_path ? exec_path : "NULL", command_line);
|
|---|
| 634 | if (envblk) free(envblk);
|
|---|
| 635 | free( command_line );
|
|---|
| 636 | return(-1);
|
|---|
| 637 | }
|
|---|
| 638 | }
|
|---|
| 639 |
|
|---|
| 640 | pproc->pid = (pid_t)procInfo.hProcess;
|
|---|
| 641 | /* Close the thread handle -- we'll just watch the process */
|
|---|
| 642 | CloseHandle(procInfo.hThread);
|
|---|
| 643 |
|
|---|
| 644 | /* Close the halves of the pipes we don't need */
|
|---|
| 645 | #ifndef KMK
|
|---|
| 646 | CloseHandle((HANDLE)pproc->sv_stdin[1]);
|
|---|
| 647 | CloseHandle((HANDLE)pproc->sv_stdout[1]);
|
|---|
| 648 | CloseHandle((HANDLE)pproc->sv_stderr[1]);
|
|---|
| 649 | pproc->sv_stdin[1] = 0;
|
|---|
| 650 | pproc->sv_stdout[1] = 0;
|
|---|
| 651 | pproc->sv_stderr[1] = 0;
|
|---|
| 652 | #else
|
|---|
| 653 | if ((HANDLE)pproc->sv_stdin[1]) {
|
|---|
| 654 | CloseHandle((HANDLE)pproc->sv_stdin[1]);
|
|---|
| 655 | pproc->sv_stdin[1] = 0;
|
|---|
| 656 | }
|
|---|
| 657 | if ((HANDLE)pproc->sv_stdout[1]) {
|
|---|
| 658 | CloseHandle((HANDLE)pproc->sv_stdout[1]);
|
|---|
| 659 | pproc->sv_stdout[1] = 0;
|
|---|
| 660 | }
|
|---|
| 661 | if ((HANDLE)pproc->sv_stderr[1]) {
|
|---|
| 662 | CloseHandle((HANDLE)pproc->sv_stderr[1]);
|
|---|
| 663 | pproc->sv_stderr[1] = 0;
|
|---|
| 664 | }
|
|---|
| 665 | #endif
|
|---|
| 666 |
|
|---|
| 667 | free( command_line );
|
|---|
| 668 | if (envblk) free(envblk);
|
|---|
| 669 | pproc->lerrno=0;
|
|---|
| 670 | return 0;
|
|---|
| 671 | }
|
|---|
| 672 |
|
|---|
| 673 |
|
|---|
| 674 |
|
|---|
| 675 | static DWORD
|
|---|
| 676 | proc_stdin_thread(sub_process *pproc)
|
|---|
| 677 | {
|
|---|
| 678 | DWORD in_done;
|
|---|
| 679 | for (;;) {
|
|---|
| 680 | if (WriteFile( (HANDLE) pproc->sv_stdin[0], pproc->inp, pproc->incnt,
|
|---|
| 681 | &in_done, NULL) == FALSE)
|
|---|
| 682 | _endthreadex(0);
|
|---|
| 683 | // This if should never be true for anonymous pipes, but gives
|
|---|
| 684 | // us a chance to change I/O mechanisms later
|
|---|
| 685 | if (in_done < pproc->incnt) {
|
|---|
| 686 | pproc->incnt -= in_done;
|
|---|
| 687 | pproc->inp += in_done;
|
|---|
| 688 | } else {
|
|---|
| 689 | _endthreadex(0);
|
|---|
| 690 | }
|
|---|
| 691 | }
|
|---|
| 692 | return 0; // for compiler warnings only.. not reached
|
|---|
| 693 | }
|
|---|
| 694 |
|
|---|
| 695 | static DWORD
|
|---|
| 696 | proc_stdout_thread(sub_process *pproc)
|
|---|
| 697 | {
|
|---|
| 698 | DWORD bufsize = 1024;
|
|---|
| 699 | char c;
|
|---|
| 700 | DWORD nread;
|
|---|
| 701 | pproc->outp = malloc(bufsize);
|
|---|
| 702 | if (pproc->outp == NULL)
|
|---|
| 703 | _endthreadex(0);
|
|---|
| 704 | pproc->outcnt = 0;
|
|---|
| 705 |
|
|---|
| 706 | for (;;) {
|
|---|
| 707 | if (ReadFile( (HANDLE)pproc->sv_stdout[0], &c, 1, &nread, NULL)
|
|---|
| 708 | == FALSE) {
|
|---|
| 709 | /* map_windows32_error_to_string(GetLastError());*/
|
|---|
| 710 | _endthreadex(0);
|
|---|
| 711 | }
|
|---|
| 712 | if (nread == 0)
|
|---|
| 713 | _endthreadex(0);
|
|---|
| 714 | if (pproc->outcnt + nread > bufsize) {
|
|---|
| 715 | bufsize += nread + 512;
|
|---|
| 716 | pproc->outp = realloc(pproc->outp, bufsize);
|
|---|
| 717 | if (pproc->outp == NULL) {
|
|---|
| 718 | pproc->outcnt = 0;
|
|---|
| 719 | _endthreadex(0);
|
|---|
| 720 | }
|
|---|
| 721 | }
|
|---|
| 722 | pproc->outp[pproc->outcnt++] = c;
|
|---|
| 723 | }
|
|---|
| 724 | return 0;
|
|---|
| 725 | }
|
|---|
| 726 |
|
|---|
| 727 | static DWORD
|
|---|
| 728 | proc_stderr_thread(sub_process *pproc)
|
|---|
| 729 | {
|
|---|
| 730 | DWORD bufsize = 1024;
|
|---|
| 731 | char c;
|
|---|
| 732 | DWORD nread;
|
|---|
| 733 | pproc->errp = malloc(bufsize);
|
|---|
| 734 | if (pproc->errp == NULL)
|
|---|
| 735 | _endthreadex(0);
|
|---|
| 736 | pproc->errcnt = 0;
|
|---|
| 737 |
|
|---|
| 738 | for (;;) {
|
|---|
| 739 | if (ReadFile( (HANDLE)pproc->sv_stderr[0], &c, 1, &nread, NULL) == FALSE) {
|
|---|
| 740 | map_windows32_error_to_string(GetLastError());
|
|---|
| 741 | _endthreadex(0);
|
|---|
| 742 | }
|
|---|
| 743 | if (nread == 0)
|
|---|
| 744 | _endthreadex(0);
|
|---|
| 745 | if (pproc->errcnt + nread > bufsize) {
|
|---|
| 746 | bufsize += nread + 512;
|
|---|
| 747 | pproc->errp = realloc(pproc->errp, bufsize);
|
|---|
| 748 | if (pproc->errp == NULL) {
|
|---|
| 749 | pproc->errcnt = 0;
|
|---|
| 750 | _endthreadex(0);
|
|---|
| 751 | }
|
|---|
| 752 | }
|
|---|
| 753 | pproc->errp[pproc->errcnt++] = c;
|
|---|
| 754 | }
|
|---|
| 755 | return 0;
|
|---|
| 756 | }
|
|---|
| 757 |
|
|---|
| 758 |
|
|---|
| 759 | /*
|
|---|
| 760 | * Purpose: collects output from child process and returns results
|
|---|
| 761 | *
|
|---|
| 762 | * Description:
|
|---|
| 763 | *
|
|---|
| 764 | * Returns:
|
|---|
| 765 | *
|
|---|
| 766 | * Notes/Dependencies:
|
|---|
| 767 | */
|
|---|
| 768 | long
|
|---|
| 769 | process_pipe_io(
|
|---|
| 770 | HANDLE proc,
|
|---|
| 771 | char *stdin_data,
|
|---|
| 772 | int stdin_data_len)
|
|---|
| 773 | {
|
|---|
| 774 | sub_process *pproc = (sub_process *)proc;
|
|---|
| 775 | bool_t stdin_eof = FALSE, stdout_eof = FALSE, stderr_eof = FALSE;
|
|---|
| 776 | HANDLE childhand = (HANDLE) pproc->pid;
|
|---|
| 777 | HANDLE tStdin = NULL, tStdout = NULL, tStderr = NULL;
|
|---|
| 778 | unsigned int dwStdin, dwStdout, dwStderr;
|
|---|
| 779 | HANDLE wait_list[4];
|
|---|
| 780 | DWORD wait_count;
|
|---|
| 781 | DWORD wait_return;
|
|---|
| 782 | HANDLE ready_hand;
|
|---|
| 783 | bool_t child_dead = FALSE;
|
|---|
| 784 | BOOL GetExitCodeResult;
|
|---|
| 785 |
|
|---|
| 786 | /*
|
|---|
| 787 | * Create stdin thread, if needed
|
|---|
| 788 | */
|
|---|
| 789 | pproc->inp = stdin_data;
|
|---|
| 790 | pproc->incnt = stdin_data_len;
|
|---|
| 791 | if (!pproc->inp) {
|
|---|
| 792 | stdin_eof = TRUE;
|
|---|
| 793 | CloseHandle((HANDLE)pproc->sv_stdin[0]);
|
|---|
| 794 | pproc->sv_stdin[0] = 0;
|
|---|
| 795 | } else {
|
|---|
| 796 | tStdin = (HANDLE) _beginthreadex( 0, 1024,
|
|---|
| 797 | (unsigned (__stdcall *) (void *))proc_stdin_thread,
|
|---|
| 798 | pproc, 0, &dwStdin);
|
|---|
| 799 | if (tStdin == 0) {
|
|---|
| 800 | pproc->last_err = GetLastError();
|
|---|
| 801 | pproc->lerrno = E_SCALL;
|
|---|
| 802 | goto done;
|
|---|
| 803 | }
|
|---|
| 804 | }
|
|---|
| 805 |
|
|---|
| 806 | /*
|
|---|
| 807 | * Assume child will produce stdout and stderr
|
|---|
| 808 | */
|
|---|
| 809 | tStdout = (HANDLE) _beginthreadex( 0, 1024,
|
|---|
| 810 | (unsigned (__stdcall *) (void *))proc_stdout_thread, pproc, 0,
|
|---|
| 811 | &dwStdout);
|
|---|
| 812 | tStderr = (HANDLE) _beginthreadex( 0, 1024,
|
|---|
| 813 | (unsigned (__stdcall *) (void *))proc_stderr_thread, pproc, 0,
|
|---|
| 814 | &dwStderr);
|
|---|
| 815 |
|
|---|
| 816 | if (tStdout == 0 || tStderr == 0) {
|
|---|
| 817 |
|
|---|
| 818 | pproc->last_err = GetLastError();
|
|---|
| 819 | pproc->lerrno = E_SCALL;
|
|---|
| 820 | goto done;
|
|---|
| 821 | }
|
|---|
| 822 |
|
|---|
| 823 |
|
|---|
| 824 | /*
|
|---|
| 825 | * Wait for all I/O to finish and for the child process to exit
|
|---|
| 826 | */
|
|---|
| 827 |
|
|---|
| 828 | while (!stdin_eof || !stdout_eof || !stderr_eof || !child_dead) {
|
|---|
| 829 | wait_count = 0;
|
|---|
| 830 | if (!stdin_eof) {
|
|---|
| 831 | wait_list[wait_count++] = tStdin;
|
|---|
| 832 | }
|
|---|
| 833 | if (!stdout_eof) {
|
|---|
| 834 | wait_list[wait_count++] = tStdout;
|
|---|
| 835 | }
|
|---|
| 836 | if (!stderr_eof) {
|
|---|
| 837 | wait_list[wait_count++] = tStderr;
|
|---|
| 838 | }
|
|---|
| 839 | if (!child_dead) {
|
|---|
| 840 | wait_list[wait_count++] = childhand;
|
|---|
| 841 | }
|
|---|
| 842 |
|
|---|
| 843 | wait_return = WaitForMultipleObjects(wait_count, wait_list,
|
|---|
| 844 | FALSE, /* don't wait for all: one ready will do */
|
|---|
| 845 | child_dead? 1000 :INFINITE); /* after the child dies, subthreads have
|
|---|
| 846 | one second to collect all remaining output */
|
|---|
| 847 |
|
|---|
| 848 | if (wait_return == WAIT_FAILED) {
|
|---|
| 849 | /* map_windows32_error_to_string(GetLastError());*/
|
|---|
| 850 | pproc->last_err = GetLastError();
|
|---|
| 851 | pproc->lerrno = E_SCALL;
|
|---|
| 852 | goto done;
|
|---|
| 853 | }
|
|---|
| 854 |
|
|---|
| 855 | ready_hand = wait_list[wait_return - WAIT_OBJECT_0];
|
|---|
| 856 |
|
|---|
| 857 | if (ready_hand == tStdin) {
|
|---|
| 858 | CloseHandle((HANDLE)pproc->sv_stdin[0]);
|
|---|
| 859 | pproc->sv_stdin[0] = 0;
|
|---|
| 860 | CloseHandle(tStdin);
|
|---|
| 861 | tStdin = 0;
|
|---|
| 862 | stdin_eof = TRUE;
|
|---|
| 863 |
|
|---|
| 864 | } else if (ready_hand == tStdout) {
|
|---|
| 865 |
|
|---|
| 866 | CloseHandle((HANDLE)pproc->sv_stdout[0]);
|
|---|
| 867 | pproc->sv_stdout[0] = 0;
|
|---|
| 868 | CloseHandle(tStdout);
|
|---|
| 869 | tStdout = 0;
|
|---|
| 870 | stdout_eof = TRUE;
|
|---|
| 871 |
|
|---|
| 872 | } else if (ready_hand == tStderr) {
|
|---|
| 873 |
|
|---|
| 874 | CloseHandle((HANDLE)pproc->sv_stderr[0]);
|
|---|
| 875 | pproc->sv_stderr[0] = 0;
|
|---|
| 876 | CloseHandle(tStderr);
|
|---|
| 877 | tStderr = 0;
|
|---|
| 878 | stderr_eof = TRUE;
|
|---|
| 879 |
|
|---|
| 880 | } else if (ready_hand == childhand) {
|
|---|
| 881 |
|
|---|
| 882 | DWORD ierr;
|
|---|
| 883 | GetExitCodeResult = GetExitCodeProcess(childhand, &ierr);
|
|---|
| 884 | if (ierr == CONTROL_C_EXIT) {
|
|---|
| 885 | pproc->signal = SIGINT;
|
|---|
| 886 | } else {
|
|---|
| 887 | pproc->exit_code = ierr;
|
|---|
| 888 | }
|
|---|
| 889 | if (GetExitCodeResult == FALSE) {
|
|---|
| 890 | pproc->last_err = GetLastError();
|
|---|
| 891 | pproc->lerrno = E_SCALL;
|
|---|
| 892 | goto done;
|
|---|
| 893 | }
|
|---|
| 894 | child_dead = TRUE;
|
|---|
| 895 |
|
|---|
| 896 | } else {
|
|---|
| 897 |
|
|---|
| 898 | /* ?? Got back a handle we didn't query ?? */
|
|---|
| 899 | pproc->last_err = 0;
|
|---|
| 900 | pproc->lerrno = E_FAIL;
|
|---|
| 901 | goto done;
|
|---|
| 902 | }
|
|---|
| 903 | }
|
|---|
| 904 |
|
|---|
| 905 | done:
|
|---|
| 906 | if (tStdin != 0)
|
|---|
| 907 | CloseHandle(tStdin);
|
|---|
| 908 | if (tStdout != 0)
|
|---|
| 909 | CloseHandle(tStdout);
|
|---|
| 910 | if (tStderr != 0)
|
|---|
| 911 | CloseHandle(tStderr);
|
|---|
| 912 |
|
|---|
| 913 | if (pproc->lerrno)
|
|---|
| 914 | return(-1);
|
|---|
| 915 | else
|
|---|
| 916 | return(0);
|
|---|
| 917 |
|
|---|
| 918 | }
|
|---|
| 919 |
|
|---|
| 920 | /*
|
|---|
| 921 | * Purpose: collects output from child process and returns results
|
|---|
| 922 | *
|
|---|
| 923 | * Description:
|
|---|
| 924 | *
|
|---|
| 925 | * Returns:
|
|---|
| 926 | *
|
|---|
| 927 | * Notes/Dependencies:
|
|---|
| 928 | */
|
|---|
| 929 | long
|
|---|
| 930 | process_file_io(
|
|---|
| 931 | HANDLE proc)
|
|---|
| 932 | {
|
|---|
| 933 | sub_process *pproc;
|
|---|
| 934 | if (proc == NULL)
|
|---|
| 935 | pproc = process_wait_for_any_private();
|
|---|
| 936 | else
|
|---|
| 937 | pproc = (sub_process *)proc;
|
|---|
| 938 |
|
|---|
| 939 | /* some sort of internal error */
|
|---|
| 940 | if (!pproc)
|
|---|
| 941 | return -1;
|
|---|
| 942 |
|
|---|
| 943 | return process_file_io_private(proc, TRUE);
|
|---|
| 944 | }
|
|---|
| 945 |
|
|---|
| 946 | /* private function, avoid some kernel calls. (bird) */
|
|---|
| 947 | static long
|
|---|
| 948 | process_file_io_private(
|
|---|
| 949 | sub_process *pproc,
|
|---|
| 950 | BOOL fNeedToWait)
|
|---|
| 951 | {
|
|---|
| 952 | HANDLE childhand;
|
|---|
| 953 | DWORD wait_return;
|
|---|
| 954 | BOOL GetExitCodeResult;
|
|---|
| 955 | DWORD ierr;
|
|---|
| 956 |
|
|---|
| 957 | childhand = (HANDLE) pproc->pid;
|
|---|
| 958 |
|
|---|
| 959 | /*
|
|---|
| 960 | * This function is poorly named, and could also be used just to wait
|
|---|
| 961 | * for child death if you're doing your own pipe I/O. If that is
|
|---|
| 962 | * the case, close the pipe handles here.
|
|---|
| 963 | */
|
|---|
| 964 | if (pproc->sv_stdin[0]) {
|
|---|
| 965 | CloseHandle((HANDLE)pproc->sv_stdin[0]);
|
|---|
| 966 | pproc->sv_stdin[0] = 0;
|
|---|
| 967 | }
|
|---|
| 968 | if (pproc->sv_stdout[0]) {
|
|---|
| 969 | CloseHandle((HANDLE)pproc->sv_stdout[0]);
|
|---|
| 970 | pproc->sv_stdout[0] = 0;
|
|---|
| 971 | }
|
|---|
| 972 | if (pproc->sv_stderr[0]) {
|
|---|
| 973 | CloseHandle((HANDLE)pproc->sv_stderr[0]);
|
|---|
| 974 | pproc->sv_stderr[0] = 0;
|
|---|
| 975 | }
|
|---|
| 976 |
|
|---|
| 977 | #ifdef KMK
|
|---|
| 978 | if (childhand == NULL || childhand == INVALID_HANDLE_VALUE) {
|
|---|
| 979 | goto done2;
|
|---|
| 980 | }
|
|---|
| 981 | #endif
|
|---|
| 982 |
|
|---|
| 983 | /*
|
|---|
| 984 | * Wait for the child process to exit it we didn't do that already.
|
|---|
| 985 | */
|
|---|
| 986 | if (fNeedToWait) {
|
|---|
| 987 | wait_return = WaitForSingleObject(childhand, INFINITE);
|
|---|
| 988 | if (wait_return != WAIT_OBJECT_0) {
|
|---|
| 989 | /* map_windows32_error_to_string(GetLastError());*/
|
|---|
| 990 | pproc->last_err = GetLastError();
|
|---|
| 991 | pproc->lerrno = E_SCALL;
|
|---|
| 992 | goto done2;
|
|---|
| 993 | }
|
|---|
| 994 | }
|
|---|
| 995 |
|
|---|
| 996 | GetExitCodeResult = GetExitCodeProcess(childhand, &ierr);
|
|---|
| 997 | if (ierr == CONTROL_C_EXIT) {
|
|---|
| 998 | pproc->signal = SIGINT;
|
|---|
| 999 | } else {
|
|---|
| 1000 | pproc->exit_code = ierr;
|
|---|
| 1001 | }
|
|---|
| 1002 | if (GetExitCodeResult == FALSE) {
|
|---|
| 1003 | pproc->last_err = GetLastError();
|
|---|
| 1004 | pproc->lerrno = E_SCALL;
|
|---|
| 1005 | }
|
|---|
| 1006 |
|
|---|
| 1007 | done2:
|
|---|
| 1008 | if (pproc->lerrno)
|
|---|
| 1009 | return(-1);
|
|---|
| 1010 | else
|
|---|
| 1011 | return(0);
|
|---|
| 1012 |
|
|---|
| 1013 | }
|
|---|
| 1014 |
|
|---|
| 1015 | /*
|
|---|
| 1016 | * Description: Clean up any leftover handles, etc. It is up to the
|
|---|
| 1017 | * caller to manage and free the input, ouput, and stderr buffers.
|
|---|
| 1018 | */
|
|---|
| 1019 | void
|
|---|
| 1020 | process_cleanup(
|
|---|
| 1021 | HANDLE proc)
|
|---|
| 1022 | {
|
|---|
| 1023 | sub_process *pproc = (sub_process *)proc;
|
|---|
| 1024 | int i;
|
|---|
| 1025 |
|
|---|
| 1026 | if (pproc->using_pipes) {
|
|---|
| 1027 | for (i= 0; i <= 1; i++) {
|
|---|
| 1028 | if ((HANDLE)pproc->sv_stdin[i])
|
|---|
| 1029 | CloseHandle((HANDLE)pproc->sv_stdin[i]);
|
|---|
| 1030 | if ((HANDLE)pproc->sv_stdout[i])
|
|---|
| 1031 | CloseHandle((HANDLE)pproc->sv_stdout[i]);
|
|---|
| 1032 | if ((HANDLE)pproc->sv_stderr[i])
|
|---|
| 1033 | CloseHandle((HANDLE)pproc->sv_stderr[i]);
|
|---|
| 1034 | }
|
|---|
| 1035 | }
|
|---|
| 1036 | if ((HANDLE)pproc->pid)
|
|---|
| 1037 | CloseHandle((HANDLE)pproc->pid);
|
|---|
| 1038 |
|
|---|
| 1039 | free(pproc);
|
|---|
| 1040 | }
|
|---|
| 1041 |
|
|---|
| 1042 |
|
|---|
| 1043 | /*
|
|---|
| 1044 | * Description:
|
|---|
| 1045 | * Create a command line buffer to pass to CreateProcess
|
|---|
| 1046 | *
|
|---|
| 1047 | * Returns: the buffer or NULL for failure
|
|---|
| 1048 | * Shell case: sh_name a:/full/path/to/script argv[1] argv[2] ...
|
|---|
| 1049 | * Otherwise: argv[0] argv[1] argv[2] ...
|
|---|
| 1050 | *
|
|---|
| 1051 | * Notes/Dependencies:
|
|---|
| 1052 | * CreateProcess does not take an argv, so this command creates a
|
|---|
| 1053 | * command line for the executable.
|
|---|
| 1054 | */
|
|---|
| 1055 |
|
|---|
| 1056 | static char *
|
|---|
| 1057 | make_command_line( char *shell_name, char *full_exec_path, char **argv)
|
|---|
| 1058 | {
|
|---|
| 1059 | int argc = 0;
|
|---|
| 1060 | char** argvi;
|
|---|
| 1061 | int* enclose_in_quotes = NULL;
|
|---|
| 1062 | int* enclose_in_quotes_i;
|
|---|
| 1063 | unsigned int bytes_required = 0;
|
|---|
| 1064 | char* command_line;
|
|---|
| 1065 | char* command_line_i;
|
|---|
| 1066 | int cygwin_mode = 0; /* HAVE_CYGWIN_SHELL */
|
|---|
| 1067 | int have_sh = 0; /* HAVE_CYGWIN_SHELL */
|
|---|
| 1068 | #undef HAVE_CYGWIN_SHELL
|
|---|
| 1069 | #ifdef HAVE_CYGWIN_SHELL
|
|---|
| 1070 | have_sh = (shell_name != NULL || strstr(full_exec_path, "sh.exe"));
|
|---|
| 1071 | cygwin_mode = 1;
|
|---|
| 1072 | #endif
|
|---|
| 1073 |
|
|---|
| 1074 | if (shell_name && full_exec_path) {
|
|---|
| 1075 | bytes_required
|
|---|
| 1076 | = strlen(shell_name) + 1 + strlen(full_exec_path);
|
|---|
| 1077 | /*
|
|---|
| 1078 | * Skip argv[0] if any, when shell_name is given.
|
|---|
| 1079 | */
|
|---|
| 1080 | if (*argv) argv++;
|
|---|
| 1081 | /*
|
|---|
| 1082 | * Add one for the intervening space.
|
|---|
| 1083 | */
|
|---|
| 1084 | if (*argv) bytes_required++;
|
|---|
| 1085 | }
|
|---|
| 1086 |
|
|---|
| 1087 | argvi = argv;
|
|---|
| 1088 | while (*(argvi++)) argc++;
|
|---|
| 1089 |
|
|---|
| 1090 | if (argc) {
|
|---|
| 1091 | enclose_in_quotes = (int*) calloc(1, argc * sizeof(int));
|
|---|
| 1092 |
|
|---|
| 1093 | if (!enclose_in_quotes) {
|
|---|
| 1094 | return NULL;
|
|---|
| 1095 | }
|
|---|
| 1096 | }
|
|---|
| 1097 |
|
|---|
| 1098 | /* We have to make one pass through each argv[i] to see if we need
|
|---|
| 1099 | * to enclose it in ", so we might as well figure out how much
|
|---|
| 1100 | * memory we'll need on the same pass.
|
|---|
| 1101 | */
|
|---|
| 1102 |
|
|---|
| 1103 | argvi = argv;
|
|---|
| 1104 | enclose_in_quotes_i = enclose_in_quotes;
|
|---|
| 1105 | while(*argvi) {
|
|---|
| 1106 | char* p = *argvi;
|
|---|
| 1107 | unsigned int backslash_count = 0;
|
|---|
| 1108 |
|
|---|
| 1109 | /*
|
|---|
| 1110 | * We have to enclose empty arguments in ".
|
|---|
| 1111 | */
|
|---|
| 1112 | if (!(*p)) *enclose_in_quotes_i = 1;
|
|---|
| 1113 |
|
|---|
| 1114 | while(*p) {
|
|---|
| 1115 | switch (*p) {
|
|---|
| 1116 | case '\"':
|
|---|
| 1117 | /*
|
|---|
| 1118 | * We have to insert a backslash for each "
|
|---|
| 1119 | * and each \ that precedes the ".
|
|---|
| 1120 | */
|
|---|
| 1121 | bytes_required += (backslash_count + 1);
|
|---|
| 1122 | backslash_count = 0;
|
|---|
| 1123 | break;
|
|---|
| 1124 |
|
|---|
| 1125 | #if !defined(HAVE_MKS_SHELL) && !defined(HAVE_CYGWIN_SHELL)
|
|---|
| 1126 | case '\\':
|
|---|
| 1127 | backslash_count++;
|
|---|
| 1128 | break;
|
|---|
| 1129 | #endif
|
|---|
| 1130 | /*
|
|---|
| 1131 | * At one time we set *enclose_in_quotes_i for '*' or '?' to suppress
|
|---|
| 1132 | * wildcard expansion in programs linked with MSVC's SETARGV.OBJ so
|
|---|
| 1133 | * that argv in always equals argv out. This was removed. Say you have
|
|---|
| 1134 | * such a program named glob.exe. You enter
|
|---|
| 1135 | * glob '*'
|
|---|
| 1136 | * at the sh command prompt. Obviously the intent is to make glob do the
|
|---|
| 1137 | * wildcarding instead of sh. If we set *enclose_in_quotes_i for '*' or '?',
|
|---|
| 1138 | * then the command line that glob would see would be
|
|---|
| 1139 | * glob "*"
|
|---|
| 1140 | * and the _setargv in SETARGV.OBJ would _not_ expand the *.
|
|---|
| 1141 | */
|
|---|
| 1142 | case ' ':
|
|---|
| 1143 | case '\t':
|
|---|
| 1144 | *enclose_in_quotes_i = 1;
|
|---|
| 1145 | /* fall through */
|
|---|
| 1146 |
|
|---|
| 1147 | default:
|
|---|
| 1148 | backslash_count = 0;
|
|---|
| 1149 | break;
|
|---|
| 1150 | }
|
|---|
| 1151 |
|
|---|
| 1152 | /*
|
|---|
| 1153 | * Add one for each character in argv[i].
|
|---|
| 1154 | */
|
|---|
| 1155 | bytes_required++;
|
|---|
| 1156 |
|
|---|
| 1157 | p++;
|
|---|
| 1158 | }
|
|---|
| 1159 |
|
|---|
| 1160 | if (*enclose_in_quotes_i) {
|
|---|
| 1161 | /*
|
|---|
| 1162 | * Add one for each enclosing ",
|
|---|
| 1163 | * and one for each \ that precedes the
|
|---|
| 1164 | * closing ".
|
|---|
| 1165 | */
|
|---|
| 1166 | bytes_required += (backslash_count + 2);
|
|---|
| 1167 | }
|
|---|
| 1168 |
|
|---|
| 1169 | /*
|
|---|
| 1170 | * Add one for the intervening space.
|
|---|
| 1171 | */
|
|---|
| 1172 | if (*(++argvi)) bytes_required++;
|
|---|
| 1173 | enclose_in_quotes_i++;
|
|---|
| 1174 | }
|
|---|
| 1175 |
|
|---|
| 1176 | /*
|
|---|
| 1177 | * Add one for the terminating NULL.
|
|---|
| 1178 | */
|
|---|
| 1179 | bytes_required++;
|
|---|
| 1180 | #ifdef KMK /* for the space before the final " in case we need it. */
|
|---|
| 1181 | bytes_required++;
|
|---|
| 1182 | #endif
|
|---|
| 1183 |
|
|---|
| 1184 | command_line = (char*) malloc(bytes_required);
|
|---|
| 1185 |
|
|---|
| 1186 | if (!command_line) {
|
|---|
| 1187 | if (enclose_in_quotes) free(enclose_in_quotes);
|
|---|
| 1188 | return NULL;
|
|---|
| 1189 | }
|
|---|
| 1190 |
|
|---|
| 1191 | command_line_i = command_line;
|
|---|
| 1192 |
|
|---|
| 1193 | if (shell_name && full_exec_path) {
|
|---|
| 1194 | while(*shell_name) {
|
|---|
| 1195 | *(command_line_i++) = *(shell_name++);
|
|---|
| 1196 | }
|
|---|
| 1197 |
|
|---|
| 1198 | *(command_line_i++) = ' ';
|
|---|
| 1199 |
|
|---|
| 1200 | while(*full_exec_path) {
|
|---|
| 1201 | *(command_line_i++) = *(full_exec_path++);
|
|---|
| 1202 | }
|
|---|
| 1203 |
|
|---|
| 1204 | if (*argv) {
|
|---|
| 1205 | *(command_line_i++) = ' ';
|
|---|
| 1206 | }
|
|---|
| 1207 | }
|
|---|
| 1208 |
|
|---|
| 1209 | argvi = argv;
|
|---|
| 1210 | enclose_in_quotes_i = enclose_in_quotes;
|
|---|
| 1211 |
|
|---|
| 1212 | while(*argvi) {
|
|---|
| 1213 | char* p = *argvi;
|
|---|
| 1214 | unsigned int backslash_count = 0;
|
|---|
| 1215 |
|
|---|
| 1216 | if (*enclose_in_quotes_i) {
|
|---|
| 1217 | *(command_line_i++) = '\"';
|
|---|
| 1218 | }
|
|---|
| 1219 |
|
|---|
| 1220 | while(*p) {
|
|---|
| 1221 | if (*p == '\"') {
|
|---|
| 1222 | if (cygwin_mode && have_sh) { /* HAVE_CYGWIN_SHELL */
|
|---|
| 1223 | /* instead of a \", cygwin likes "" */
|
|---|
| 1224 | *(command_line_i++) = '\"';
|
|---|
| 1225 | } else {
|
|---|
| 1226 |
|
|---|
| 1227 | /*
|
|---|
| 1228 | * We have to insert a backslash for the "
|
|---|
| 1229 | * and each \ that precedes the ".
|
|---|
| 1230 | */
|
|---|
| 1231 | backslash_count++;
|
|---|
| 1232 |
|
|---|
| 1233 | while(backslash_count) {
|
|---|
| 1234 | *(command_line_i++) = '\\';
|
|---|
| 1235 | backslash_count--;
|
|---|
| 1236 | };
|
|---|
| 1237 | }
|
|---|
| 1238 | #if !defined(HAVE_MKS_SHELL) && !defined(HAVE_CYGWIN_SHELL)
|
|---|
| 1239 | } else if (*p == '\\') {
|
|---|
| 1240 | backslash_count++;
|
|---|
| 1241 | } else {
|
|---|
| 1242 | backslash_count = 0;
|
|---|
| 1243 | #endif
|
|---|
| 1244 | }
|
|---|
| 1245 |
|
|---|
| 1246 | /*
|
|---|
| 1247 | * Copy the character.
|
|---|
| 1248 | */
|
|---|
| 1249 | *(command_line_i++) = *(p++);
|
|---|
| 1250 | }
|
|---|
| 1251 |
|
|---|
| 1252 | if (*enclose_in_quotes_i) {
|
|---|
| 1253 | #if !defined(HAVE_MKS_SHELL) && !defined(HAVE_CYGWIN_SHELL)
|
|---|
| 1254 | /*
|
|---|
| 1255 | * Add one \ for each \ that precedes the
|
|---|
| 1256 | * closing ".
|
|---|
| 1257 | */
|
|---|
| 1258 | while(backslash_count--) {
|
|---|
| 1259 | *(command_line_i++) = '\\';
|
|---|
| 1260 | };
|
|---|
| 1261 | #endif
|
|---|
| 1262 | #ifdef KMK
|
|---|
| 1263 | /*
|
|---|
| 1264 | * ash it put off by echo "hello world" ending up as:
|
|---|
| 1265 | * G:/.../kmk_ash.exe -c "echo ""hello world"""
|
|---|
| 1266 | * It wants a space before the last '"'.
|
|---|
| 1267 | * (The 'test_shell' goals in Makefile.kmk tests this problem.)
|
|---|
| 1268 | */
|
|---|
| 1269 | if (command_line_i[-1] == '\"' /* && cygwin_mode && have_sh*/ && !argvi[1]) {
|
|---|
| 1270 | *(command_line_i++) = ' ';
|
|---|
| 1271 | }
|
|---|
| 1272 | #endif
|
|---|
| 1273 | *(command_line_i++) = '\"';
|
|---|
| 1274 | }
|
|---|
| 1275 |
|
|---|
| 1276 | /*
|
|---|
| 1277 | * Append an intervening space.
|
|---|
| 1278 | */
|
|---|
| 1279 | if (*(++argvi)) {
|
|---|
| 1280 | *(command_line_i++) = ' ';
|
|---|
| 1281 | }
|
|---|
| 1282 |
|
|---|
| 1283 | enclose_in_quotes_i++;
|
|---|
| 1284 | }
|
|---|
| 1285 |
|
|---|
| 1286 | /*
|
|---|
| 1287 | * Append the terminating NULL.
|
|---|
| 1288 | */
|
|---|
| 1289 | *command_line_i = '\0';
|
|---|
| 1290 |
|
|---|
| 1291 | if (enclose_in_quotes) free(enclose_in_quotes);
|
|---|
| 1292 | return command_line;
|
|---|
| 1293 | }
|
|---|
| 1294 |
|
|---|
| 1295 | /*
|
|---|
| 1296 | * Description: Given an argv and optional envp, launch the process
|
|---|
| 1297 | * using the default stdin, stdout, and stderr handles.
|
|---|
| 1298 | * Also, register process so that process_wait_for_any_private()
|
|---|
| 1299 | * can be used via process_file_io(NULL) or
|
|---|
| 1300 | * process_wait_for_any().
|
|---|
| 1301 | *
|
|---|
| 1302 | * Returns:
|
|---|
| 1303 | *
|
|---|
| 1304 | * Notes/Dependencies:
|
|---|
| 1305 | */
|
|---|
| 1306 | HANDLE
|
|---|
| 1307 | process_easy(
|
|---|
| 1308 | char **argv,
|
|---|
| 1309 | char **envp)
|
|---|
| 1310 | {
|
|---|
| 1311 | #ifndef KMK
|
|---|
| 1312 | HANDLE hIn;
|
|---|
| 1313 | HANDLE hOut;
|
|---|
| 1314 | HANDLE hErr;
|
|---|
| 1315 | #endif
|
|---|
| 1316 | HANDLE hProcess;
|
|---|
| 1317 |
|
|---|
| 1318 | if (proc_index >= MAXIMUM_WAIT_OBJECTS) {
|
|---|
| 1319 | DB (DB_JOBS, ("process_easy: All process slots used up\n"));
|
|---|
| 1320 | return INVALID_HANDLE_VALUE;
|
|---|
| 1321 | }
|
|---|
| 1322 | #ifndef KMK
|
|---|
| 1323 | if (DuplicateHandle(GetCurrentProcess(),
|
|---|
| 1324 | GetStdHandle(STD_INPUT_HANDLE),
|
|---|
| 1325 | GetCurrentProcess(),
|
|---|
| 1326 | &hIn,
|
|---|
| 1327 | 0,
|
|---|
| 1328 | TRUE,
|
|---|
| 1329 | DUPLICATE_SAME_ACCESS) == FALSE) {
|
|---|
| 1330 | fprintf(stderr,
|
|---|
| 1331 | "process_easy: DuplicateHandle(In) failed (e=%ld)\n",
|
|---|
| 1332 | GetLastError());
|
|---|
| 1333 | return INVALID_HANDLE_VALUE;
|
|---|
| 1334 | }
|
|---|
| 1335 | if (DuplicateHandle(GetCurrentProcess(),
|
|---|
| 1336 | GetStdHandle(STD_OUTPUT_HANDLE),
|
|---|
| 1337 | GetCurrentProcess(),
|
|---|
| 1338 | &hOut,
|
|---|
| 1339 | 0,
|
|---|
| 1340 | TRUE,
|
|---|
| 1341 | DUPLICATE_SAME_ACCESS) == FALSE) {
|
|---|
| 1342 | fprintf(stderr,
|
|---|
| 1343 | "process_easy: DuplicateHandle(Out) failed (e=%ld)\n",
|
|---|
| 1344 | GetLastError());
|
|---|
| 1345 | return INVALID_HANDLE_VALUE;
|
|---|
| 1346 | }
|
|---|
| 1347 | if (DuplicateHandle(GetCurrentProcess(),
|
|---|
| 1348 | GetStdHandle(STD_ERROR_HANDLE),
|
|---|
| 1349 | GetCurrentProcess(),
|
|---|
| 1350 | &hErr,
|
|---|
| 1351 | 0,
|
|---|
| 1352 | TRUE,
|
|---|
| 1353 | DUPLICATE_SAME_ACCESS) == FALSE) {
|
|---|
| 1354 | fprintf(stderr,
|
|---|
| 1355 | "process_easy: DuplicateHandle(Err) failed (e=%ld)\n",
|
|---|
| 1356 | GetLastError());
|
|---|
| 1357 | return INVALID_HANDLE_VALUE;
|
|---|
| 1358 | }
|
|---|
| 1359 |
|
|---|
| 1360 | hProcess = process_init_fd(hIn, hOut, hErr);
|
|---|
| 1361 | #else
|
|---|
| 1362 | hProcess = process_init_fd(0, 0, 0);
|
|---|
| 1363 | #endif /* !KMK */
|
|---|
| 1364 |
|
|---|
| 1365 | if (process_begin(hProcess, argv, envp, argv[0], NULL)) {
|
|---|
| 1366 | fake_exits_pending++;
|
|---|
| 1367 | /* process_begin() failed: make a note of that. */
|
|---|
| 1368 | if (!((sub_process*) hProcess)->last_err)
|
|---|
| 1369 | ((sub_process*) hProcess)->last_err = -1;
|
|---|
| 1370 | #ifdef KMK
|
|---|
| 1371 | if (!((sub_process*) hProcess)->exit_code)
|
|---|
| 1372 | #endif
|
|---|
| 1373 | ((sub_process*) hProcess)->exit_code = process_last_err(hProcess);
|
|---|
| 1374 |
|
|---|
| 1375 | #ifndef KMK
|
|---|
| 1376 | /* close up unused handles */
|
|---|
| 1377 | CloseHandle(hIn);
|
|---|
| 1378 | CloseHandle(hOut);
|
|---|
| 1379 | CloseHandle(hErr);
|
|---|
| 1380 | #endif
|
|---|
| 1381 | }
|
|---|
| 1382 |
|
|---|
| 1383 | process_register(hProcess);
|
|---|
| 1384 |
|
|---|
| 1385 | return hProcess;
|
|---|
| 1386 | }
|
|---|