Annotation of embedaddon/ipsec-tools/src/racoon/logger.c, revision 1.1
1.1 ! misho 1: /* $NetBSD: logger.c,v 1.4 2006/09/09 16:22:09 manu Exp $ */
! 2:
! 3: /* $KAME: logger.c,v 1.9 2002/09/03 14:37:03 itojun Exp $ */
! 4:
! 5: /*
! 6: * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
! 7: * All rights reserved.
! 8: *
! 9: * Redistribution and use in source and binary forms, with or without
! 10: * modification, are permitted provided that the following conditions
! 11: * are met:
! 12: * 1. Redistributions of source code must retain the above copyright
! 13: * notice, this list of conditions and the following disclaimer.
! 14: * 2. Redistributions in binary form must reproduce the above copyright
! 15: * notice, this list of conditions and the following disclaimer in the
! 16: * documentation and/or other materials provided with the distribution.
! 17: * 3. Neither the name of the project nor the names of its contributors
! 18: * may be used to endorse or promote products derived from this software
! 19: * without specific prior written permission.
! 20: *
! 21: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
! 22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 24: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
! 25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 31: * SUCH DAMAGE.
! 32: */
! 33:
! 34: #include "config.h"
! 35:
! 36: #include <sys/types.h>
! 37: #include <sys/param.h>
! 38:
! 39: #include <stdlib.h>
! 40: #include <stdio.h>
! 41: #include <string.h>
! 42: #include <errno.h>
! 43: #ifdef HAVE_STDARG_H
! 44: #include <stdarg.h>
! 45: #else
! 46: #include <varargs.h>
! 47: #endif
! 48: #if TIME_WITH_SYS_TIME
! 49: # include <sys/time.h>
! 50: # include <time.h>
! 51: #else
! 52: # if HAVE_SYS_TIME_H
! 53: # include <sys/time.h>
! 54: # else
! 55: # include <time.h>
! 56: # endif
! 57: #endif
! 58:
! 59: #include "logger.h"
! 60: #include "var.h"
! 61: #include "gcmalloc.h"
! 62:
! 63: struct log *
! 64: log_open(siz, fname)
! 65: size_t siz;
! 66: char *fname;
! 67: {
! 68: struct log *p;
! 69:
! 70: p = (struct log *)racoon_malloc(sizeof(*p));
! 71: if (p == NULL)
! 72: return NULL;
! 73: memset(p, 0, sizeof(*p));
! 74:
! 75: p->buf = (char **)racoon_malloc(sizeof(char *) * siz);
! 76: if (p->buf == NULL) {
! 77: racoon_free(p);
! 78: return NULL;
! 79: }
! 80: memset(p->buf, 0, sizeof(char *) * siz);
! 81:
! 82: p->tbuf = (time_t *)racoon_malloc(sizeof(time_t *) * siz);
! 83: if (p->tbuf == NULL) {
! 84: racoon_free(p->buf);
! 85: racoon_free(p);
! 86: return NULL;
! 87: }
! 88: memset(p->tbuf, 0, sizeof(time_t *) * siz);
! 89:
! 90: p->siz = siz;
! 91: if (fname)
! 92: p->fname = racoon_strdup(fname);
! 93:
! 94: return p;
! 95: }
! 96:
! 97: /*
! 98: * append string to ring buffer.
! 99: * string must be \n-terminated (since we add timestamps).
! 100: * even if not, we'll add \n to avoid formatting mistake (see log_close()).
! 101: */
! 102: void
! 103: log_add(p, str)
! 104: struct log *p;
! 105: char *str;
! 106: {
! 107: /* syslog if p->fname == NULL? */
! 108: if (p->buf[p->head])
! 109: racoon_free(p->buf[p->head]);
! 110: p->buf[p->head] = racoon_strdup(str);
! 111: p->tbuf[p->head] = time(NULL);
! 112: p->head++;
! 113: p->head %= p->siz;
! 114: }
! 115:
! 116: /*
! 117: * write out string to the log file, as is.
! 118: * \n-termination is up to the caller. if you don't add \n, the file
! 119: * format may be broken.
! 120: */
! 121: int
! 122: log_print(p, str)
! 123: struct log *p;
! 124: char *str;
! 125: {
! 126: FILE *fp;
! 127:
! 128: if (p->fname == NULL)
! 129: return -1; /*XXX syslog?*/
! 130: fp = fopen(p->fname, "a");
! 131: if (fp == NULL)
! 132: return -1;
! 133: fprintf(fp, "%s", str);
! 134: fclose(fp);
! 135:
! 136: return 0;
! 137: }
! 138:
! 139: int
! 140: log_vprint(struct log *p, const char *fmt, ...)
! 141: {
! 142: va_list ap;
! 143:
! 144: FILE *fp;
! 145:
! 146: if (p->fname == NULL)
! 147: return -1; /*XXX syslog?*/
! 148: fp = fopen(p->fname, "a");
! 149: if (fp == NULL)
! 150: return -1;
! 151: va_start(ap, fmt);
! 152: vfprintf(fp, fmt, ap);
! 153: va_end(ap);
! 154:
! 155: fclose(fp);
! 156:
! 157: return 0;
! 158: }
! 159:
! 160: int
! 161: log_vaprint(struct log *p, const char *fmt, va_list ap)
! 162: {
! 163: FILE *fp;
! 164:
! 165: if (p->fname == NULL)
! 166: return -1; /*XXX syslog?*/
! 167: fp = fopen(p->fname, "a");
! 168: if (fp == NULL)
! 169: return -1;
! 170: vfprintf(fp, fmt, ap);
! 171: fclose(fp);
! 172:
! 173: return 0;
! 174: }
! 175:
! 176: /*
! 177: * write out content of ring buffer, and reclaim the log structure
! 178: */
! 179: int
! 180: log_close(p)
! 181: struct log *p;
! 182: {
! 183: FILE *fp;
! 184: int i, j;
! 185: char ts[256];
! 186: struct tm *tm;
! 187:
! 188: if (p->fname == NULL)
! 189: goto nowrite;
! 190: fp = fopen(p->fname, "a");
! 191: if (fp == NULL)
! 192: goto nowrite;
! 193:
! 194: for (i = 0; i < p->siz; i++) {
! 195: j = (p->head + i) % p->siz;
! 196: if (p->buf[j]) {
! 197: tm = localtime(&p->tbuf[j]);
! 198: strftime(ts, sizeof(ts), "%B %d %T", tm);
! 199: fprintf(fp, "%s: %s\n", ts, p->buf[j]);
! 200: if (*(p->buf[j] + strlen(p->buf[j]) - 1) != '\n')
! 201: fprintf(fp, "\n");
! 202: }
! 203: }
! 204: fclose(fp);
! 205:
! 206: nowrite:
! 207: log_free(p);
! 208: return 0;
! 209: }
! 210:
! 211: void
! 212: log_free(p)
! 213: struct log *p;
! 214: {
! 215: int i;
! 216:
! 217: for (i = 0; i < p->siz; i++)
! 218: racoon_free(p->buf[i]);
! 219: racoon_free(p->buf);
! 220: racoon_free(p->tbuf);
! 221: if (p->fname)
! 222: racoon_free(p->fname);
! 223: racoon_free(p);
! 224: }
! 225:
! 226: #ifdef TEST
! 227: struct log *l;
! 228:
! 229: void
! 230: vatest(const char *fmt, ...)
! 231: {
! 232: va_list ap;
! 233: va_start(ap, fmt);
! 234: log_vaprint(l, fmt, ap);
! 235: va_end(ap);
! 236: }
! 237:
! 238: int
! 239: main(argc, argv)
! 240: int argc;
! 241: char **argv;
! 242: {
! 243: int i;
! 244:
! 245: l = log_open(30, "/tmp/hoge");
! 246: if (l == NULL)
! 247: errx(1, "hoge");
! 248:
! 249: for (i = 0; i < 50; i++) {
! 250: log_add(l, "foo");
! 251: log_add(l, "baa");
! 252: log_add(l, "baz");
! 253: }
! 254: log_print(l, "hoge\n");
! 255: log_vprint(l, "hoge %s\n", "this is test");
! 256: vatest("%s %s\n", "this is", "vprint test");
! 257: abort();
! 258: log_free(l);
! 259: }
! 260:
! 261: #endif
! 262:
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