Add an alias __openat_2() for openat()

Don't ask me for the reason why a straight-forward openat() call in GNU tar ends up calling __openat_2() via the glibc. I don't know. Anyway, that's the first time I had to ask something on StackOverflow, and I was promptly pointed in the right direction! <http://stackoverflow.com/questions/9161116/intercepting-the-openat-system-call-for-gnu-tar>

Add an alias __openat_2() for openat()
36ee5ac3 · Julius Plenz · b43ab2bc · 36ee5ac3
Commit 36ee5ac3 authored Feb 06, 2012 by Julius Plenz
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nocache.c nocache.c +2 -0

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--- a/nocache.c
+++ b/nocache.c
@@ -18,6 +18,8 @@ void init(void) __attribute__((constructor));
 int open(const char *pathname, int flags, mode_t mode);
 int creat(const char *pathname, int flags, mode_t mode);
 int openat(int dirfd, const char *pathname, int flags, mode_t mode);
+int __openat_2(int dirfd, const char *pathname, int flags, mode_t mode)
+    __attribute__ ((alias ("openat")));
 int close(int fd);

 static void store_pageinfo(int fd);