[gentoo-commits] proj/sandbox:master commit in: libsandbox/

[Mike Gilbert]

commit:     8c3bc21729c3ad13295b586cd185b2b5da686731
Author:     Mike Gilbert <floppym <AT> gentoo <DOT> org>
AuthorDate: Sat Aug  5 19:18:53 2023 +0000
Commit:     Mike Gilbert <floppym <AT> gentoo <DOT> org>
CommitDate: Sat Aug  5 20:08:11 2023 +0000
URL:        https://gitweb.gentoo.org/proj/sandbox.git/commit/?id=8c3bc217

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 <floppym <AT> gentoo.org>

 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)