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Annotation of embedaddon/lrzsz/src/lsyslog.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:   lsyslog.c - wrapper for the syslog function
                      3:   Copyright (C) 1997 Uwe Ohse
                      4: 
                      5:   This program is free software; you can redistribute it and/or modify
                      6:   it under the terms of the GNU General Public License as published by
                      7:   the Free Software Foundation; either version 2, or (at your option)
                      8:   any later version.
                      9: 
                     10:   This program is distributed in the hope that it will be useful,
                     11:   but WITHOUT ANY WARRANTY; without even the implied warranty of
                     12:   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     13:   GNU General Public License for more details.
                     14: 
                     15:   You should have received a copy of the GNU General Public License
                     16:   along with this program; if not, write to the Free Software
                     17:   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
                     18:   02111-1307, USA.
                     19: 
                     20: */
                     21: #include "config.h"
                     22: #ifdef ENABLE_SYSLOG
                     23: #include "zglobal.h"
                     24: #include <pwd.h>
                     25: #include <stdlib.h>
                     26: #include <string.h>
                     27: #endif
                     28: 
                     29: #if __STDC__
                     30: #  include <stdarg.h>
                     31: #  define VA_START(args, lastarg) va_start(args, lastarg)
                     32: #  define WAYTOGO
                     33: #else
                     34: #  include <varargs.h>
                     35: #  define VA_START(args, lastarg) va_start(args)
                     36: #endif
                     37: 
                     38: void
                     39: #ifdef WAYTOGO
                     40: lsyslog(int prio, const char *format, ...)
                     41: #else
                     42: lsyslog(prio,format,va_alist) 
                     43:        int prio; 
                     44:        const char *format; 
                     45:        va_dcl
                     46: #endif
                     47: {
                     48: #ifdef ENABLE_SYSLOG
                     49:        static char *username=NULL;
                     50:        static char uid_string[20]=""; /* i'd really hate this function to fail! */
                     51:        char *s=NULL;
                     52:        static int init_done=0;
                     53:     va_list ap;
                     54:        if (!enable_syslog)
                     55:                return;
                     56:        if (!init_done) {
                     57:                uid_t uid;
                     58:                struct passwd *pwd;
                     59:                init_done=1;
                     60:                uid=getuid();
                     61:                pwd=getpwuid(uid);
                     62:                if (pwd && pwd->pw_name && *pwd->pw_name) {
                     63:                        username=strdup(pwd->pw_name);
                     64:                }
                     65:                if (!username) {
                     66:                        username=uid_string;
                     67:                        sprintf(uid_string,"#%lu",(unsigned long) uid);
                     68:                }
                     69:        }
                     70: 
                     71:     VA_START(ap, format);
                     72:     vasprintf(&s,format, ap);
                     73:     va_end(ap);
                     74:     syslog(prio,"[%s] %s",username,s);
                     75:        free(s);
                     76: #else
                     77:        (void) prio; /* get rid of warning */
                     78:        (void) format; /* get rid of warning */
                     79: #endif
                     80: }
                     81: