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| author | Laurent Bercot <ska-skaware@skarnet.org> | 2015-06-09 20:10:08 +0000 |
|---|---|---|
| committer | Laurent Bercot <ska-skaware@skarnet.org> | 2015-06-09 20:10:08 +0000 |
| commit | 81052f38c7f81e8342057ee230477e74ac621735 (patch) | |
| tree | 9edea01e4ad23c81928fe7ec5472504bb104c7b0 | |
| parent | 5053ea39ff884a26e4f295ef081414bf2704c37a (diff) | |
| download | execline-81052f38c7f81e8342057ee230477e74ac621735.tar.xz | |
Real fix for the race condition in forstdin.c.
It was totally idiotic and I didn't see it; Olivier Brunel did.
Herp derp.
| -rw-r--r-- | src/execline/forstdin.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/execline/forstdin.c b/src/execline/forstdin.c index 3fb52eb..3b52fab 100644 --- a/src/execline/forstdin.c +++ b/src/execline/forstdin.c @@ -98,7 +98,7 @@ int main (int argc, char const **argv, char const *const *envp) if (pids.s) { if (sig_catch(SIGCHLD, ¶llel_sigchld_handler) < 0) - strerr_diefu2sys(111, "install", " SIGCHLD handler") ; + strerr_diefu1sys(111, "install SIGCHLD handler") ; } for (;;) { @@ -128,12 +128,14 @@ int main (int argc, char const **argv, char const *const *envp) if (!stralloc_0(&modif)) strerr_diefu1sys(111, "stralloc_0") ; if (!env_merge(newenv, envlen+2, envp, envlen, modif.s, modif.len)) strerr_diefu1sys(111, "merge environment") ; + if (pids.s) sig_block(SIGCHLD) ; pid = el_spawn0(argv[1], argv + 1, newenv) ; if (!pid) strerr_diefu2sys(111, "spawn ", argv[1]) ; if (pids.s) { if (!genalloc_append(pid_t, &pids, &pid)) strerr_diefu1sys(111, "genalloc_append") ; + sig_unblock(SIGCHLD) ; } else { |