diff options
Diffstat (limited to 'libbb/xreadlink.c')
| -rw-r--r-- | libbb/xreadlink.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/libbb/xreadlink.c b/libbb/xreadlink.c index 18a8b94..4d87b94 100644 --- a/libbb/xreadlink.c +++ b/libbb/xreadlink.c @@ -10,8 +10,7 @@ * NOTE: This function returns a malloced char* that you will have to free * yourself. You have been warned. */ - -char *xmalloc_readlink_or_warn(const char *path) +char *xmalloc_readlink(const char *path) { enum { GROWBY = 80 }; /* how large we will grow strings by */ @@ -20,20 +19,30 @@ char *xmalloc_readlink_or_warn(const char *path) do { buf = xrealloc(buf, bufsize += GROWBY); - readsize = readlink(path, buf, bufsize); /* 1st try */ + readsize = readlink(path, buf, bufsize); if (readsize == -1) { - bb_perror_msg("%s", path); free(buf); return NULL; } - } - while (bufsize < readsize + 1); + } while (bufsize < readsize + 1); buf[readsize] = '\0'; return buf; } +char *xmalloc_readlink_or_warn(const char *path) +{ + char *buf = xmalloc_readlink(path); + if (!buf) { + /* EINVAL => "file: Invalid argument" => puzzled user */ + bb_error_msg("%s: cannot read link (not a symlink?)", path); + } + return buf; +} + +/* UNUSED */ +#if 0 char *xmalloc_realpath(const char *path) { #if defined(__GLIBC__) && !defined(__UCLIBC__) @@ -46,3 +55,4 @@ char *xmalloc_realpath(const char *path) return xstrdup(realpath(path, buf)); #endif } +#endif |