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-rw-r--r--coreutils/readlink.c2
-rw-r--r--coreutils/realpath.c2
-rw-r--r--include/libbb.h1
-rw-r--r--libbb/xreadlink.c30
4 files changed, 33 insertions, 2 deletions
diff --git a/coreutils/readlink.c b/coreutils/readlink.c
index b8e327d..49361ce 100644
--- a/coreutils/readlink.c
+++ b/coreutils/readlink.c
@@ -86,7 +86,7 @@ int readlink_main(int argc UNUSED_PARAM, char **argv)
/* NOFORK: only one alloc is allowed; must free */
if (opt & 1) { /* -f */
- buf = xmalloc_realpath(fname);
+ buf = xmalloc_realpath_coreutils(fname);
} else {
buf = xmalloc_readlink_or_warn(fname);
}
diff --git a/coreutils/realpath.c b/coreutils/realpath.c
index aa878fc..4392368 100644
--- a/coreutils/realpath.c
+++ b/coreutils/realpath.c
@@ -38,7 +38,7 @@ int realpath_main(int argc UNUSED_PARAM, char **argv)
do {
/* NOFORK: only one alloc is allowed; must free */
- char *resolved_path = xmalloc_realpath(*argv);
+ char *resolved_path = xmalloc_realpath_coreutils(*argv);
if (resolved_path != NULL) {
puts(resolved_path);
free(resolved_path);
diff --git a/include/libbb.h b/include/libbb.h
index a605c7f..d4ba031 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -485,6 +485,7 @@ DIR *xopendir(const char *path) FAST_FUNC;
DIR *warn_opendir(const char *path) FAST_FUNC;
char *xmalloc_realpath(const char *path) FAST_FUNC RETURNS_MALLOC;
+char *xmalloc_realpath_coreutils(const char *path) FAST_FUNC RETURNS_MALLOC;
char *xmalloc_readlink(const char *path) FAST_FUNC RETURNS_MALLOC;
char *xmalloc_readlink_or_warn(const char *path) FAST_FUNC RETURNS_MALLOC;
/* !RETURNS_MALLOC: it's a realloc-like function */
diff --git a/libbb/xreadlink.c b/libbb/xreadlink.c
index 9b62bcc..6315033 100644
--- a/libbb/xreadlink.c
+++ b/libbb/xreadlink.c
@@ -122,3 +122,33 @@ char* FAST_FUNC xmalloc_realpath(const char *path)
return xstrdup(realpath(path, buf));
#endif
}
+
+char* FAST_FUNC xmalloc_realpath_coreutils(const char *path)
+{
+ char *buf;
+
+ errno = 0;
+ buf = xmalloc_realpath(path);
+ /*
+ * There is one case when "readlink -f" and
+ * "realpath" from coreutils succeed,
+ * even though file does not exist, such as:
+ * /tmp/file_does_not_exist
+ * (the directory must exist).
+ */
+ if (!buf && errno == ENOENT) {
+ char *last_slash = strrchr(path, '/');
+ if (last_slash) {
+ *last_slash++ = '\0';
+ buf = xmalloc_realpath(path);
+ if (buf) {
+ unsigned len = strlen(buf);
+ buf = xrealloc(buf, len + strlen(last_slash) + 2);
+ buf[len++] = '/';
+ strcpy(buf + len, last_slash);
+ }
+ }
+ }
+
+ return buf;
+}