From 8c3bc21729c3ad13295b586cd185b2b5da686731 Mon Sep 17 00:00:00 2001 From: Mike Gilbert Date: Sat, 5 Aug 2023 15:18:53 -0400 Subject: erealpath: use separate buffer for readlink Fixes a compiler warning: ``` warning: passing argument 2 to 'restrict'-qualified parameter aliases with argument 1 [-Wrestrict] ``` Signed-off-by: Mike Gilbert --- libsandbox/canonicalize.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/libsandbox/canonicalize.c b/libsandbox/canonicalize.c index 6c9a2d6..f8d32f0 100644 --- a/libsandbox/canonicalize.c +++ b/libsandbox/canonicalize.c @@ -102,10 +102,12 @@ erealpath(const char *name, char *resolved) if (lstat64(rpath, &st)) break; if (S_ISLNK(st.st_mode)) { - ssize_t cnt = readlink(rpath, rpath, SB_PATH_MAX - 1); + char buffer[SB_PATH_MAX]; + ssize_t cnt = readlink(rpath, buffer, SB_PATH_MAX - 1); if (cnt == -1) break; - rpath[cnt] = '\0'; + buffer[cnt] = '\0'; + strcpy(rpath, buffer); if (p) { size_t bytes_left = strlen(p); if (bytes_left >= SB_PATH_MAX) -- cgit v1.2.3-65-gdbad