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| author | Eric Andersen <andersen@codepoet.org> | 2001-05-07 17:48:28 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 2001-05-07 17:48:28 +0000 |
| commit | 28355a36da6ad4d1b55ba9bb146fb0b6586e7edb (patch) | |
| tree | d08439547c9b94e1d0211fb0de91e68fc3180fe4 /libbb/xreadlink.c | |
| parent | 822c3837f95a355f90d25aaabeb2445bb5eb1bf0 (diff) | |
| download | busybox-28355a36da6ad4d1b55ba9bb146fb0b6586e7edb.tar.gz | |
Per some comments from Lars Kellogg-Stedman <lars@larsshack.org>,
make xreadlink() return NULL on failure, and make sure everyone
uses the interface correctly.
-Erik
Diffstat (limited to 'libbb/xreadlink.c')
| -rw-r--r-- | libbb/xreadlink.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/libbb/xreadlink.c b/libbb/xreadlink.c index 66f63b883..932e487a5 100644 --- a/libbb/xreadlink.c +++ b/libbb/xreadlink.c @@ -1,5 +1,6 @@ /* - * xreadlink.c - safe implementation of readlink + * xreadlink.c - safe implementation of readlink. + * Returns a NULL on failure... */ #include <stdio.h> @@ -22,8 +23,10 @@ extern char *xreadlink(const char *path) do { buf = xrealloc(buf, bufsize += GROWBY); readsize = readlink(path, buf, bufsize); /* 1st try */ - if (readsize == -1) - perror_msg("%s:%s", applet_name, path); + if (readsize == -1) { + perror_msg("%s:%s", applet_name, path); + return NULL; + } } while (bufsize < readsize + 1); |