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109e504262
The result is not much more convoluted than the original was, but much shorter. Several vararg macros were added -- no idea what !gcc compilers make of this. The messages sent to these functions are inconsistent across the source tree. I have now decided that the logging function will add the final newline - messages will need to be modified accordingly. I have no idea why the original implementation was as complicated and ugly as it was. My guess is that it was anticipated that these are be called from sighandlers, but why no snprintf when they are all stuffed up with vsnprintf... Still, the result is not worse in this regard either.
106 lines
3.1 KiB
C
106 lines
3.1 KiB
C
/*
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* Window Maker miscelaneous function library
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*
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* Copyright (c) 1997-2003 Alfredo K. Kojima
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "wconfig.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <errno.h>
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#include <WUtil.h>
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extern char *_WINGS_progname;
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#define MAXLINE 1024
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/*********************************************************************
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* Returns the system error message associated with error code 'errnum'
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*********************************************************************/
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char *wstrerror(int errnum)
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{
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#if defined(HAVE_STRERROR)
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return strerror(errnum);
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#elif !defined(HAVE_STRERROR) && defined(BSD)
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extern int errno, sys_nerr;
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# ifndef __DECC
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extern char *sys_errlist[];
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# endif
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static char buf[] = "Unknown error 12345678901234567890";
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if (errno < sys_nerr)
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return sys_errlist[errnum];
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snprintf(buf, sizeof(buf), _("Unknown error %d"), errnum);
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return buf;
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#else /* no strerror() and no sys_errlist[] */
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static char buf[] = "Error 12345678901234567890";
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snprintf(buf, sizeof(buf), _("Error %d"), errnum);
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return buf;
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#endif
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}
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void __wmessage(int type, void *extra, const char *msg, ...)
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{
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va_list args;
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char buf[MAXLINE];
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fflush(stdout);
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/* message format: <wings_progname>: <qualifier>: <message>[: <extra info>]"\n" */
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snprintf(buf, sizeof(buf), "%s: ", _WINGS_progname ? _WINGS_progname : "WINGs");
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va_start(args, msg);
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switch (type) {
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case WMESSAGE_TYPE_WARNING:
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snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
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_("warning: "));
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vsnprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
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msg, args);
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break;
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case WMESSAGE_TYPE_FATAL:
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snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
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_("fatal error: "));
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vsnprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
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msg, args);
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break;
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case WMESSAGE_TYPE_WSYSERROR:
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case WMESSAGE_TYPE_WSYSERRORWITHCODE:
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snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
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_("error: "));
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vsnprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
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msg, args);
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snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
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": %s", type == WMESSAGE_TYPE_WSYSERROR ?
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wstrerror(errno) : wstrerror(*(int *)extra));
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break;
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case WMESSAGE_TYPE_MESSAGE:
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/* FALLTHROUGH */
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default:
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snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), ": ");
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vsnprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), msg, args);
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break;
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}
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va_end(args);
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strncat(buf + strlen(buf), "\n", sizeof(buf) - strlen(buf) - 1);
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fputs(buf, stderr);
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}
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