/* vi: set sw=4 ts=4: */
/*
- * xreadlink.c - safe implementation of readlink.
- * Returns a NULL on failure...
+ * xreadlink.c - safe implementation of readlink.
+ * Returns a NULL on failure...
+ *
+ * Licensed under GPLv2, see file LICENSE in this tarball for details.
*/
#include "libbb.h"
* NOTE: This function returns a malloced char* that you will have to free
* yourself.
*/
-char *xmalloc_readlink(const char *path)
+char* FAST_FUNC xmalloc_readlink(const char *path)
{
enum { GROWBY = 80 }; /* how large we will grow strings by */
* those at the tail.
* A malloced char* is returned, which must be freed by the caller.
*/
-char *xmalloc_follow_symlinks(const char *path)
+char* FAST_FUNC xmalloc_follow_symlinks(const char *path)
{
char *buf;
char *lpc;
}
}
-char *xmalloc_readlink_or_warn(const char *path)
+char* FAST_FUNC 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);
+ const char *errmsg = "not a symlink";
+ int err = errno;
+ if (err != EINVAL)
+ errmsg = strerror(err);
+ bb_error_msg("%s: cannot read link: %s", path, errmsg);
}
return buf;
}
/* UNUSED */
#if 0
-char *xmalloc_realpath(const char *path)
+char* FAST_FUNC xmalloc_realpath(const char *path)
{
#if defined(__GLIBC__) && !defined(__UCLIBC__)
/* glibc provides a non-standard extension */