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This commit is contained in:
Justine Tunney 2020-12-01 03:43:40 -08:00
parent 3e4fd4b0ad
commit e44a0cf6f8
256 changed files with 23100 additions and 2294 deletions
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27
libc/stdio/system.c
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@ -21,9 +21,11 @@
#include "libc/calls/calls.h"
#include "libc/calls/hefty/spawn.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/paths.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
/**
* Launches program with system command interpreter.
@ -33,21 +35,24 @@
* status that can be accessed using macros like WEXITSTATUS(s)
*/
int system(const char *cmdline) {
char comspec[128];
int rc, pid, wstatus;
const char *prog, *arg;
int rc, wstatus, fds[3];
if (weaken(fflush)) weaken(fflush)(NULL);
if (cmdline) {
prog = !IsWindows() ? _PATH_BSHELL : "cmd";
arg = !IsWindows() ? "-c" : "/C";
fds[0] = 0;
fds[1] = 1;
fds[2] = 2;
if ((rc = spawnlp(0, fds, prog, prog, arg, cmdline, NULL)) != -1) {
if ((rc = wait4(rc, &wstatus, 0, NULL)) != -1) {
rc = wstatus;
}
if ((pid = fork()) == -1) return -1;
if (!pid) {
strcpy(comspec, kNtSystemDirectory);
strcat(comspec, "cmd.exe");
prog = !IsWindows() ? _PATH_BSHELL : comspec;
arg = !IsWindows() ? "-c" : "/C";
execve(prog, (char *const[]){prog, arg, cmdline, NULL}, environ);
_exit(errno);
} else if (wait4(pid, &wstatus, 0, NULL) != -1) {
return wstatus;
} else {
return -1;
}
return rc;
} else if (IsWindows()) {
return true;
} else {