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/*
* mkdirat() wrapper.
*
* Copyright 1999-2008 Gentoo Foundation
* Licensed under the GPL-2
*/
#ifndef WRAPPER_ARGS_PROTO /* let mkdir() use us */
# define WRAPPER_ARGS_PROTO int dirfd, const char *pathname, mode_t mode
# define WRAPPER_ARGS dirfd, pathname, mode
# define WRAPPER_SAFE() FUNCTION_SANDBOX_SAFE_AT(dirfd, pathname)
#endif
static inline bool sb_mkdirat_pre_check(WRAPPER_ARGS_PROTO)
{
char canonic[SB_PATH_MAX];
save_errno();
if (-1 == canonicalize(pathname, canonic))
/* see comments in check_syscall() */
if (ENAMETOOLONG != errno)
return false;
/* XXX: Hack to prevent errors if the directory exist,
* and are not writable - we rather return EEXIST rather
* than failing */
struct stat st;
if (0 == lstat(canonic, &st)) {
errno = EEXIST;
return false;
}
restore_errno();
return true;
}
#define WRAPPER_PRE_CHECKS() if (!sb_mkdirat_pre_check(WRAPPER_ARGS)) return result;
#include "__wrapper_simple.c"
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