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wmaker/WINGs/error.c
Tamas TEVESZ 4478f21b7f WINGs: Less ad-hoc approach for __wmessage()
Signed-off-by: Tamas TEVESZ <ice@extreme.hu>
2010-10-07 12:04:29 +02:00

101 lines
2.8 KiB
C

/*
* Window Maker miscelaneous function library
*
* Copyright (c) 1997-2003 Alfredo K. Kojima
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "wconfig.h"
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <WUtil.h>
extern char *_WINGS_progname;
void __wmessage(int type, void *extra, const char *msg, ...)
{
va_list args;
char *buf;
static int linemax = 0;
if (linemax == 0) {
#ifdef HAVE_SYSCONF
linemax = sysconf(_SC_LINE_MAX);
if (linemax == -1) {
/* I'd like to know of this ever fires */
fprintf(stderr, "%s %d: sysconf(_SC_LINE_MAX) returned error\n",
__FILE__, __LINE__);
linemax = 512;
}
#else /* !HAVE_SYSCONF */
fprintf(stderr, "%s %d: Your system does not have sysconf(3); "
"let wmaker-dev@windowmaker.org know.\n", __FILE__, __LINE__);
linemax = 512;
#endif /* HAVE_SYSCONF */
}
buf = wmalloc(linemax);
fflush(stdout);
/* message format: <wings_progname>: <qualifier>: <message>[: <extra info>]"\n" */
snprintf(buf, linemax, "%s: ", _WINGS_progname ? _WINGS_progname : "WINGs");
va_start(args, msg);
switch (type) {
case WMESSAGE_TYPE_WARNING:
snprintf(buf + strlen(buf), linemax - strlen(buf) - 1,
_("warning: "));
vsnprintf(buf + strlen(buf), linemax - strlen(buf) - 1,
msg, args);
break;
case WMESSAGE_TYPE_FATAL:
snprintf(buf + strlen(buf), linemax - strlen(buf) - 1,
_("fatal error: "));
vsnprintf(buf + strlen(buf), linemax - strlen(buf) - 1,
msg, args);
break;
case WMESSAGE_TYPE_WSYSERROR:
case WMESSAGE_TYPE_WSYSERRORWITHCODE:
snprintf(buf + strlen(buf), linemax - strlen(buf) - 1,
_("error: "));
vsnprintf(buf + strlen(buf), linemax - strlen(buf) - 1,
msg, args);
snprintf(buf + strlen(buf), linemax - strlen(buf) - 1,
": %s", type == WMESSAGE_TYPE_WSYSERROR ?
strerror(errno) : strerror(*(int *)extra));
break;
case WMESSAGE_TYPE_MESSAGE:
/* FALLTHROUGH */
default:
strncat(buf, ": ", linemax - strlen(buf));
vsnprintf(buf + strlen(buf), linemax - strlen(buf) - 1, msg, args);
break;
}
va_end(args);
strncat(buf, "\n", linemax - strlen(buf));
fputs(buf, stderr);
wfree(buf);
}