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| author | Rich Felker <dalias@aerifal.cx> | 2011-02-17 10:28:56 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-02-17 10:28:56 -0500 |
| commit | 19e35c500bd2b5e6146e42705ab9b69c155a2006 (patch) | |
| tree | ec36d9d90ba2a3d323fc7a092fac9ce48a2f0a86 /src/linux | |
| parent | b24bc15f5c3828184f123698b4b545fef4edac99 (diff) | |
| download | musl-19e35c500bd2b5e6146e42705ab9b69c155a2006.tar.gz musl-19e35c500bd2b5e6146e42705ab9b69c155a2006.tar.bz2 musl-19e35c500bd2b5e6146e42705ab9b69c155a2006.tar.xz musl-19e35c500bd2b5e6146e42705ab9b69c155a2006.zip | |
daemon should check for failures and return -1
Diffstat (limited to 'src/linux')
| -rw-r--r-- | src/linux/daemon.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/linux/daemon.c b/src/linux/daemon.c index 632d1203..3750fc34 100644 --- a/src/linux/daemon.c +++ b/src/linux/daemon.c @@ -19,12 +19,15 @@ int daemon(int nochdir, int noclose) default: _exit(0); } - if (!nochdir) chdir("/"); - if (!noclose && (fd = open("/dev/null", O_RDWR)) >= 0) { - dup2(fd, 0); - dup2(fd, 1); - dup2(fd, 2); + if (!nochdir && chdir("/")) + return -1; + if (!noclose) { + int failed = 0; + if ((fd = open("/dev/null", O_RDWR)) < 0) return -1; + if (dup2(fd, 0) < 0 || dup2(fd, 1) < 0 || dup2(fd, 2) < 0) + failed++; if (fd > 2) close(fd); + if (failed) return -1; } return 0; |