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cc65/libsrc/common/perror.c

57 lines
2.9 KiB
C

/*****************************************************************************/
/* */
/* perror.c */
/* */
/* Print a system error message */
/* */
/* */
/* */
/* (C) 1998-2010, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#include <stdio.h>
#include <string.h>
#include <errno.h>
void __fastcall__ perror (const char* msg)
{
/* Fetch the message that corresponds to errno */
const char* errormsg = strerror (__errno);
/* Different output depending on msg */
if (msg) {
fprintf (stderr, "%s: %s\n", msg, errormsg);
} else {
fprintf (stderr, "%s\n", errormsg);
}
}