/* We allow "recursive" symbolic links. Only within reason, though. */
#define MAXDEPTH 5
-const char *make_absolute_path(const char *path)
+/*
+ * Use this to get the real path, i.e. resolve links. If you want an
+ * absolute path but don't mind links, use absolute_path.
+ *
+ * If path is our buffer, then return path, as it's already what the
+ * user wants.
+ */
+const char *real_path(const char *path)
{
static char bufs[2][PATH_MAX + 1], *buf = bufs[0], *next_buf = bufs[1];
char cwd[1024] = "";
while (depth--) {
if (!is_directory(buf)) {
- char *last_slash = strrchr(buf, '/');
+ char *last_slash = find_last_dir_sep(buf);
if (last_slash) {
*last_slash = '\0';
last_elem = xstrdup(last_slash + 1);
if (len + strlen(last_elem) + 2 > PATH_MAX)
die ("Too long path name: '%s/%s'",
buf, last_elem);
- if (len && buf[len-1] != '/')
+ if (len && !is_dir_sep(buf[len-1]))
buf[len++] = '/';
strcpy(buf + len, last_elem);
free(last_elem);
pwd = getenv("PWD");
if (pwd && strcmp(pwd, cwd)) {
stat(cwd, &cwd_stat);
- if (!stat(pwd, &pwd_stat) &&
+ if ((cwd_stat.st_dev || cwd_stat.st_ino) &&
+ !stat(pwd, &pwd_stat) &&
pwd_stat.st_dev == cwd_stat.st_dev &&
pwd_stat.st_ino == cwd_stat.st_ino) {
strlcpy(cwd, pwd, PATH_MAX);
return cwd;
}
-const char *make_nonrelative_path(const char *path)
+/*
+ * Use this to get an absolute path from a relative one. If you want
+ * to resolve links, you should use real_path.
+ *
+ * If the path is already absolute, then return path. As the user is
+ * never meant to free the return value, we're safe.
+ */
+const char *absolute_path(const char *path)
{
static char buf[PATH_MAX + 1];