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| author | tanimura <tanimura@FreeBSD.org> | 2002-01-19 06:34:58 +0000 |
|---|---|---|
| committer | tanimura <tanimura@FreeBSD.org> | 2002-01-19 06:34:58 +0000 |
| commit | 37250d53cb8a214f987b9f9e22f5ac8b7a8fa3d9 (patch) | |
| tree | 356c7aa2769eb2daeb1870c478492edb52fae117 | |
| parent | 86e7a84bd8940f1417ed98be8b5fa5d649cb5138 (diff) | |
| download | FreeBSD-src-37250d53cb8a214f987b9f9e22f5ac8b7a8fa3d9.zip FreeBSD-src-37250d53cb8a214f987b9f9e22f5ac8b7a8fa3d9.tar.gz | |
Lock the caller process if the pid passed to getsid() or getpgid()
equals to zero.
| -rw-r--r-- | sys/compat/svr4/svr4_misc.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/sys/compat/svr4/svr4_misc.c b/sys/compat/svr4/svr4_misc.c index 0feebe3..4771d90 100644 --- a/sys/compat/svr4/svr4_misc.c +++ b/sys/compat/svr4/svr4_misc.c @@ -1021,8 +1021,9 @@ svr4_sys_pgrpsys(td, uap) return 0; case 2: /* getsid(pid) */ - if (SCARG(uap, pid) != 0 && - (p = svr4_pfind(SCARG(uap, pid))) == NULL) + if (SCARG(uap, pid) == 0) + PROC_LOCK(p); + else if ((p = svr4_pfind(SCARG(uap, pid))) == NULL) return ESRCH; /* * This has already been initialized to the pid of @@ -1037,8 +1038,9 @@ svr4_sys_pgrpsys(td, uap) case 4: /* getpgid(pid) */ - if (SCARG(uap, pid) != 0 && - (p = svr4_pfind(SCARG(uap, pid))) == NULL) + if (SCARG(uap, pid) == 0) + PROC_LOCK(p); + else if ((p = svr4_pfind(SCARG(uap, pid))) == NULL) return ESRCH; *retval = (int) p->p_pgrp->pg_id; |
