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libc printf_render_errno(): do not use strerror()

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(cherry picked from commit aa66995b4c804cbb579f71645d97fe282a798bfc)
This commit is contained in:
Konstantin Belousov 2024-04-23 20:15:22 +03:00
parent 0451d4287a
commit 09bcfbd1ae
1 changed files with 4 additions and 3 deletions
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7
lib/libc/stdio/xprintf_errno.c
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@ -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));