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| author | Benjamin Peterson <benjamin@python.org> | 2018-09-13 14:23:42 -0700 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2018-09-15 01:58:03 -0400 |
| commit | c84971995b3a6d5118f9357c040572f4c78bcd55 (patch) | |
| tree | 36b663dffd83bc09199d01f34f77126167c71ccb /src/unistd/ttyname_r.c | |
| parent | e13063aad7aee341d278d2a879a76ec7b59b2ad8 (diff) | |
| download | musl-c84971995b3a6d5118f9357c040572f4c78bcd55.tar.gz musl-c84971995b3a6d5118f9357c040572f4c78bcd55.tar.xz musl-c84971995b3a6d5118f9357c040572f4c78bcd55.zip | |
improve error handling of ttyname_r and isatty
POSIX allows ttyname(_r) and isatty to return EBADF if passed file
descriptor is invalid.
maintainer's note: these are optional ("may fail") errors, but it's
non-conforming for ttyname_r to return ENOTTY when it failed for a
different reason.
Diffstat (limited to 'src/unistd/ttyname_r.c')
| -rw-r--r-- | src/unistd/ttyname_r.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/unistd/ttyname_r.c b/src/unistd/ttyname_r.c index cb364c29..82acb75e 100644 --- a/src/unistd/ttyname_r.c +++ b/src/unistd/ttyname_r.c @@ -9,7 +9,7 @@ int ttyname_r(int fd, char *name, size_t size) char procname[sizeof "/proc/self/fd/" + 3*sizeof(int) + 2]; ssize_t l; - if (!isatty(fd)) return ENOTTY; + if (!isatty(fd)) return errno; __procfdname(procname, fd); l = readlink(procname, name, size); |