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real_path: set errno when max number of symlinks is exceeded

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Set errno to ELOOP when the maximum number of symlinks is exceeded, as
would be done by other symlink-resolving functions.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Brandon Williams 2017-01-09 10:50:24 -08:00 committed by Junio C Hamano
parent 7aeb81f1de
commit 0b9864aa28
1 changed files with 2 additions and 0 deletions
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abspath.c
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@ -141,6 +141,8 @@ char *strbuf_realpath(struct strbuf *resolved, const char *path,
strbuf_reset(&symlink); strbuf_reset(&symlink);
if (num_symlinks++ > MAXSYMLINKS) { if (num_symlinks++ > MAXSYMLINKS) {
errno = ELOOP;
if (die_on_error) if (die_on_error)
die("More than %d nested symlinks " die("More than %d nested symlinks "
"on path '%s'", MAXSYMLINKS, path); "on path '%s'", MAXSYMLINKS, path);