uclibc-ng/librt/mq_unlink.c

/*
 * mq_unlink.c - remove a message queue.
 */

#include <errno.h>
#include <sys/syscall.h>

#include <mqueue.h>

#ifdef __NR_mq_unlink

#define __NR___syscall_mq_unlink __NR_mq_unlink
static inline _syscall1(int, __syscall_mq_unlink, const char *, name);

/* Remove message queue */
int mq_unlink(const char *name)
{
	int ret;

	if (name[0] != '/') {
		__set_errno(EINVAL);
		return -1;
	}

	ret = __syscall_mq_unlink(name + 1);

	/* While unlink can return either EPERM or EACCES, mq_unlink should return just EACCES.  */
	if (ret < 0) {
		ret = errno;
		if (ret == EPERM)
			ret = EACCES;
		__set_errno(ret);
		ret = -1;
	}

	return ret;
}

#endif