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Annotation of src/usr.bin/tip/log.c, Revision 1.13

1.13    ! nicm        1: /*     $OpenBSD: log.c,v 1.12 2010/06/29 16:44:38 nicm Exp $   */
1.1       deraadt     2: /*     $NetBSD: log.c,v 1.4 1994/12/24 17:56:28 cgd Exp $      */
                      3:
                      4: /*
                      5:  * Copyright (c) 1983, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
1.7       millert    16:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    17:  *    may be used to endorse or promote products derived from this software
                     18:  *    without specific prior written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30:  * SUCH DAMAGE.
                     31:  */
                     32:
                     33: #include "tip.h"
                     34:
                     35: static FILE *flog = NULL;
                     36:
                     37: /*
                     38:  * Log file maintenance routines
                     39:  */
1.3       deraadt    40: void
1.11      nicm       41: logent(char *group, char *acu, char *message)
1.1       deraadt    42: {
                     43:        char *user, *timestamp;
                     44:        struct passwd *pwd;
                     45:        time_t t;
                     46:
                     47:        if (flog == NULL)
                     48:                return;
                     49:        if (flock(fileno(flog), LOCK_EX) < 0) {
1.5       millert    50:                perror("flock");
1.1       deraadt    51:                return;
                     52:        }
1.9       moritz     53:        if ((user = getlogin()) == NULL) {
                     54:                if ((pwd = getpwuid(getuid())) == NULL)
1.1       deraadt    55:                        user = "???";
                     56:                else
                     57:                        user = pwd->pw_name;
1.4       deraadt    58:        }
1.1       deraadt    59:        t = time(0);
                     60:        timestamp = ctime(&t);
                     61:        timestamp[24] = '\0';
1.11      nicm       62:        fprintf(flog, "%s (%s) <%s, %s> %s\n",
1.1       deraadt    63:                user, timestamp, group,
                     64:                acu, message);
                     65:        (void) fflush(flog);
                     66:        (void) flock(fileno(flog), LOCK_UN);
                     67: }
                     68:
1.3       deraadt    69: void
1.8       deraadt    70: loginit(void)
1.1       deraadt    71: {
1.13    ! nicm       72:        flog = fopen(vgetstr(LOG), "a");
1.1       deraadt    73:        if (flog == NULL)
1.13    ! nicm       74:                fprintf(stderr, "can't open log file %s.\r\n", vgetstr(LOG));
1.1       deraadt    75: }