libtrace: Add support for lstat() / lstat64()

1 files changed, 25 insertions, 0 deletions

diff --git a/src/libtrace/libtrace.c b/src/libtrace/libtrace.c
index 9f2622c00..dde3df2ea 100644
--- a/src/libtrace/libtrace.c
+++ b/src/libtrace/libtrace.c
@@ -432,6 +432,31 @@ int stat64(const char *pathname, struct stat64 *buf) {
 }
 #endif /* __GLIBC__ */
 
+// lstat
+typedef int (*orig_lstat_t)(const char *pathname, struct stat *buf);
+static orig_lstat_t orig_lstat = NULL;
+int lstat(const char *pathname, struct stat *buf) {
+        if (!orig_lstat)
+                orig_lstat = (orig_lstat_t)dlsym(RTLD_NEXT, "lstat");
+
+        int rv = orig_lstat(pathname, buf);
+        printf("%u:%s:lstat %s:%d\n", pid(), name(), pathname, rv);
+        return rv;
+}
+
+#ifdef __GLIBC__
+typedef int (*orig_lstat64_t)(const char *pathname, struct stat64 *buf);
+static orig_lstat64_t orig_lstat64 = NULL;
+int lstat64(const char *pathname, struct stat64 *buf) {
+        if (!orig_lstat64)
+                orig_lstat64 = (orig_lstat64_t)dlsym(RTLD_NEXT, "lstat64");
+
+        int rv = orig_lstat64(pathname, buf);
+        printf("%u:%s:lstat64 %s:%d\n", pid(), name(), pathname, rv);
+        return rv;
+}
+#endif /* __GLIBC__ */
+
 // opendir
 typedef DIR *(*orig_opendir_t)(const char *pathname);
 static orig_opendir_t orig_opendir = NULL;