libc printf_render_errno(): do not use strerror()

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D44916

This commit is contained in:

Konstantin Belousov

2024-04-23 20:15:22 +03:00

parent bac9d7e8f2

commit aa66995b4c

1 changed files with 4 additions and 3 deletions

									
										lib/libc/stdio/xprintf_errno.c
									
		+4
		-3
	
												View File
												
				@@ -27,6 +27,7 @@

				 */

				#include <namespace.h>

				#include <limits.h>

				#include <stdio.h>

				#include <string.h>

				#include <stdlib.h>

				@@ -53,13 +54,13 @@ __printf_render_errno(struct __printf_io *io, const struct printf_info *pi

				{

					int ret, error;

					char buf[64];

					const char *p;

					char errnomsg[NL_TEXTMAX];

					ret = 0;

					error = *((const int *)arg[0]);

					if (error >= 0 && error < __hidden_sys_nerr) {

						p = strerror(error);

						return (__printf_out(io, pi, p, strlen(p)));

						strerror_r(error, errnomsg, sizeof(errnomsg));

						return (__printf_out(io, pi, errnomsg, strlen(errnomsg)));

					}

					sprintf(buf, "errno=%d/0x%x", error, error);

					ret += __printf_out(io, pi, buf, strlen(buf));