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strbuf_readlink: support link targets that exceed PATH_MAX

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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>
This commit is contained in:
Karsten Blees
2015-05-11 22:15:40 +02:00
committed by Johannes Schindelin
parent d283592c7e
commit 4981ee83e1
1 changed files with 1 additions and 3 deletions
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4
strbuf.c
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@@ -540,8 +540,6 @@ ssize_t strbuf_write(struct strbuf *sb, FILE *f)
}
#define STRBUF_MAXLINK (2*PATH_MAX)
int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint)
{
size_t oldalloc = sb->alloc;
@@ -549,7 +547,7 @@ 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);