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6f53f408bca53300cf8008e8bf2260e4490bd67f blob 674 bytes (raw)

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#define _GNU_SOURCE
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <sys/prctl.h>

#include "pthread_impl.h"

int pthread_setname_np(pthread_t thread, const char *name)
{
	int fd, cs, status = 0;
	char f[THREAD_NAME_PATH_SIZE];
	size_t len;

	if ((len = strnlen(name, 16)) > 15) return ERANGE;

	if (thread == pthread_self())
		return prctl(PR_SET_NAME, (unsigned long)name, 0UL, 0UL, 0UL) ? errno : 0;

	__proctidcomm(f, thread->tid);
	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
	if ((fd = open(f, O_WRONLY|O_CLOEXEC)) < 0 || write(fd, name, len) < 0) status = errno;
	if (fd >= 0) close(fd);
	pthread_setcancelstate(cs, 0);
	return status;
}
debug log:

solving 6f53f408 ...
found 6f53f408 in http://inbox.vuxu.org/musl/20201219183721.25532-1-ericonr@disroot.org/
found 82d35e17 in https://git.vuxu.org/mirror/musl/
preparing index
index prepared:
100644 82d35e17eda7b33f386484cbe06de1a3d6cf079e	src/thread/pthread_setname_np.c

applying [1/1] http://inbox.vuxu.org/musl/20201219183721.25532-1-ericonr@disroot.org/
diff --git a/src/thread/pthread_setname_np.c b/src/thread/pthread_setname_np.c
index 82d35e17..6f53f408 100644

Checking patch src/thread/pthread_setname_np.c...
Applied patch src/thread/pthread_setname_np.c cleanly.

index at:
100644 6f53f408bca53300cf8008e8bf2260e4490bd67f	src/thread/pthread_setname_np.c

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