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Fix vfork wrapper for macOS

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This commit is contained in:
Robin Gareus 2023-03-25 07:46:47 +01:00
parent 4b5333a721
commit 168c439ee8
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 12 additions and 3 deletions
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15
libs/vfork/exec_wrapper.c
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@ -45,7 +45,17 @@ static int close_allv (const int except_fds[]) {
return -1; return -1;
} }
for (int fd = 0; fd < (int) rl.rlim_max; fd++) { int max_fd;
if (rl.rlim_cur >= 4194304) {
/* Impose a sane limit, in case the value is
* RLIM_INFINITY 2^63 -1
*/
max_fd = 4194304;
} else {
max_fd = (int)rl.rlim_cur;
}
for (int fd = 0; fd < max_fd; fd++) {
if (fd <= 3) { if (fd <= 3) {
continue; continue;
} }
@ -82,8 +92,6 @@ int main(int argc, char *argv[]) {
pout[0] = atoi(argv[5]); pout[0] = atoi(argv[5]);
pout[1] = atoi(argv[6]); pout[1] = atoi(argv[6]);
int good_fds[3] = { pok[1], pout[1], -1 };
int stderr_mode = atoi(argv[7]); int stderr_mode = atoi(argv[7]);
int nicelevel = atoi(argv[8]); int nicelevel = atoi(argv[8]);
@ -137,6 +145,7 @@ int main(int argc, char *argv[]) {
signal(SIGPIPE, SIG_DFL); signal(SIGPIPE, SIG_DFL);
#endif #endif
int good_fds[2] = { pok[1], -1 };
if (0 == close_allv (good_fds)) { if (0 == close_allv (good_fds)) {
/* all systems go */ /* all systems go */
execve(argv[9], &argv[9], envp); execve(argv[9], &argv[9], envp);