diff options
| author | sef <sef@FreeBSD.org> | 2000-01-10 04:09:05 +0000 |
|---|---|---|
| committer | sef <sef@FreeBSD.org> | 2000-01-10 04:09:05 +0000 |
| commit | 31b9ca1819116012a8cd7a78cce90b0820aac53e (patch) | |
| tree | df5ccadb71b85185101693e26b24562f864636cc /usr.bin/truss/main.c | |
| parent | 3452c8e1b7ed8a214ae8748f449dd9363cee9920 (diff) | |
| download | FreeBSD-src-31b9ca1819116012a8cd7a78cce90b0820aac53e.zip FreeBSD-src-31b9ca1819116012a8cd7a78cce90b0820aac53e.tar.gz | |
Handle the case where we truss an SUGID program -- in particular, we need
to wake up any processes waiting via PIOCWAIT on process exit, and truss
needs to be more aware that a process may actually disappear while it's
waiting.
Reviewed by: Paul Saab <ps@yahoo-inc.com>
Diffstat (limited to 'usr.bin/truss/main.c')
| -rw-r--r-- | usr.bin/truss/main.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/usr.bin/truss/main.c b/usr.bin/truss/main.c index ab5c0ba..d09ee67 100644 --- a/usr.bin/truss/main.c +++ b/usr.bin/truss/main.c @@ -202,6 +202,9 @@ main(int ac, char **av) { Procfd = start_tracing(pid, S_EXEC | S_SCE | S_SCX | S_CORE | S_EXIT | (nosigs ? 0 : S_SIG)); + if (Procfd == -1) + return 0; + pfs.why = 0; funcs = set_etype(); @@ -251,8 +254,12 @@ main(int ac, char **av) { break; } } - if (ioctl(Procfd, PIOCCONT, val) == -1) - warn("PIOCCONT"); + if (ioctl(Procfd, PIOCCONT, val) == -1) { + if (kill(pid, 0) == -1 && errno == ESRCH) + break; + else + warn("PIOCCONT"); + } } while (pfs.why != S_EXIT); fflush(outfile); if (sigexit) { |
