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-rw-r--r--abspath.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/abspath.c b/abspath.c
index 91ca00f..3005aed 100644
--- a/abspath.c
+++ b/abspath.c
@@ -14,7 +14,14 @@ int is_directory(const char *path)
/* 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] = "";
@@ -24,6 +31,10 @@ const char *make_absolute_path(const char *path)
char *last_elem = NULL;
struct stat st;
+ /* We've already done it */
+ if (path == buf || path == next_buf)
+ return path;
+
if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
die ("Too long path: %.*s", 60, path);
@@ -100,7 +111,14 @@ static const char *get_pwd_cwd(void)
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];