diff options
Diffstat (limited to 'src/libstddjb/child_spawn0.c')
| -rw-r--r-- | src/libstddjb/child_spawn0.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/src/libstddjb/child_spawn0.c b/src/libstddjb/child_spawn0.c index b96b2ef..7129515 100644 --- a/src/libstddjb/child_spawn0.c +++ b/src/libstddjb/child_spawn0.c @@ -6,6 +6,7 @@ #ifdef SKALIBS_HASPOSIXSPAWN +#include <signal.h> #include <spawn.h> #include <stdlib.h> #include <skalibs/config.h> @@ -13,13 +14,33 @@ pid_t child_spawn0 (char const *prog, char const *const *argv, char const *const *envp) { - pid_t pid ; + posix_spawnattr_t attr ; int e ; + pid_t pid ; int haspath = !!env_get("PATH") ; - if (!haspath && (setenv("PATH", SKALIBS_DEFAULTPATH, 0) < 0)) return 0 ; - e = posix_spawnp(&pid, prog, 0, 0, (char *const *)argv, (char *const *)envp) ; + e = posix_spawnattr_init(&attr) ; + if (e) goto err ; + { + sigset_t set ; + sigemptyset(&set) ; + e = posix_spawnattr_setsigmask(&attr, &set) ; + if (e) goto errattr ; + sigfillset(&set) ; + e = posix_spawnattr_setsigdefault(&attr, &set) ; + if (e) goto errattr ; + } + if (!haspath && (setenv("PATH", SKALIBS_DEFAULTPATH, 0) < 0)) { e = errno ; goto errattr ; } + e = posix_spawnp(&pid, prog, 0, &attr, (char *const *)argv, (char *const *)envp) ; if (!haspath) unsetenv("PATH") ; - return e ? (errno = e, 0) : pid ; + posix_spawnattr_destroy(&attr) ; + if (e) goto err ; + return pid ; + + errattr: + posix_spawnattr_destroy(&attr) ; + err: + errno = e ; + return 0 ; } #else |