#define USE_SYMLINK_HEAD 1
#endif
-int validate_symref(const char *path)
-{
- struct stat st;
- char *buf, buffer[256];
- int len, fd;
-
- if (lstat(path, &st) < 0)
- return -1;
-
- /* Make sure it is a "refs/.." symlink */
- if (S_ISLNK(st.st_mode)) {
- len = readlink(path, buffer, sizeof(buffer)-1);
- if (len >= 5 && !memcmp("refs/", buffer, 5))
- return 0;
- return -1;
- }
-
- /*
- * Anything else, just open it and try to see if it is a symbolic ref.
- */
- fd = open(path, O_RDONLY);
- if (fd < 0)
- return -1;
- len = read(fd, buffer, sizeof(buffer)-1);
- close(fd);
-
- /*
- * Is it a symbolic ref?
- */
- if (len < 4 || memcmp("ref:", buffer, 4))
- return -1;
- buf = buffer + 4;
- len -= 4;
- while (len && isspace(*buf))
- buf++, len--;
- if (len >= 5 && !memcmp("refs/", buf, 5))
- return 0;
- return -1;
-}
-
const char *resolve_ref(const char *path, unsigned char *sha1, int reading)
{
int depth = MAXDEPTH, len;