From fee6e2ea1d4b6e8d382416046a4267336f0aaf71 Mon Sep 17 00:00:00 2001
From: Karsten Blees <blees@dcon.de>
Date: Mon, 11 May 2015 22:15:40 +0200
Subject: [PATCH] strbuf_readlink: support link targets that exceed PATH_MAX
strbuf_readlink() refuses to read link targets that exceed PATH_MAX (even
if a sufficient size was specified by the caller).
As some platforms support longer paths, remove this restriction (similar
to strbuf_getcwd()).
Signed-off-by: Karsten Blees <blees@dcon.de>
---
strbuf.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/strbuf.c b/strbuf.c
index 637febd7b8f28c..220e9fc82ac390 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -564,8 +564,6 @@ ssize_t strbuf_write(struct strbuf *sb, FILE *f)
return sb->len ? fwrite(sb->buf, 1, sb->len, f) : 0;
}
-#define STRBUF_MAXLINK (2*PATH_MAX)
-
int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint)
{
size_t oldalloc = sb->alloc;
@@ -573,7 +571,7 @@ int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint)
if (hint < 32)
hint = 32;
- while (hint < STRBUF_MAXLINK) {
+ for (;;) {
ssize_t len;
strbuf_grow(sb, hint + 1);