Annotation of embedaddon/ipsec-tools/src/racoon/plog.c, revision 1.1.1.1

1.1       misho       1: /*     $NetBSD: plog.c,v 1.7 2011/01/28 12:51:40 tteras Exp $  */
                      2: 
                      3: /* Id: plog.c,v 1.11 2006/06/20 09:57:31 vanhu 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 <arpa/inet.h>
                     40: #include <stdlib.h>
                     41: #include <stdio.h>
                     42: #include <string.h>
                     43: #include <errno.h>
                     44: #ifdef HAVE_STDARG_H
                     45: #include <stdarg.h>
                     46: #else
                     47: #include <varargs.h>
                     48: #endif
                     49: #if TIME_WITH_SYS_TIME
                     50: # include <sys/time.h>
                     51: # include <time.h>
                     52: #else
                     53: # if HAVE_SYS_TIME_H
                     54: #  include <sys/time.h>
                     55: # else
                     56: #  include <time.h>
                     57: # endif
                     58: #endif
                     59: #include <ctype.h>
                     60: #include <err.h>
                     61: 
                     62: #include "var.h"
                     63: #include "misc.h"
                     64: #include "plog.h"
                     65: #include "logger.h"
                     66: #include "debug.h"
                     67: #include "gcmalloc.h"
                     68: 
                     69: #ifndef VA_COPY
                     70: # define VA_COPY(dst,src) memcpy(&(dst), &(src), sizeof(va_list))
                     71: #endif
                     72: 
                     73: char *pname = NULL;
                     74: u_int32_t loglevel = LLV_BASE;
                     75: int f_foreground = 0;
                     76: 
                     77: int print_location = 0;
                     78: 
                     79: static struct log *logp = NULL;
                     80: static char *logfile = NULL;
                     81: 
                     82: static char *plog_common __P((int, const char *, const char *, struct sockaddr *));
                     83: 
                     84: static struct plogtags {
                     85:        char *name;
                     86:        int priority;
                     87: } ptab[] = {
                     88:        { "(not defined)",      0, },
                     89:        { "ERROR",              LOG_INFO, },
                     90:        { "WARNING",            LOG_INFO, },
                     91:        { "NOTIFY",             LOG_INFO, },
                     92:        { "INFO",               LOG_INFO, },
                     93:        { "DEBUG",              LOG_DEBUG, },
                     94:        { "DEBUG2",             LOG_DEBUG, },
                     95: };
                     96: 
                     97: static char *
                     98: plog_common(pri, fmt, func, sa)
                     99:        int pri;
                    100:        const char *fmt, *func;
                    101:        struct sockaddr *sa;
                    102: {
                    103:        static char buf[800];   /* XXX shoule be allocated every time ? */
                    104:        void *addr;
                    105:        char *p;
                    106:        int reslen, len;
                    107: 
                    108:        p = buf;
                    109:        reslen = sizeof(buf);
                    110: 
                    111:        if (logfile || f_foreground) {
                    112:                time_t t;
                    113:                struct tm *tm;
                    114: 
                    115:                t = time(0);
                    116:                tm = localtime(&t);
                    117:                len = strftime(p, reslen, "%Y-%m-%d %T: ", tm);
                    118:                p += len;
                    119:                reslen -= len;
                    120:        }
                    121: 
                    122:        if (sa && reslen > 3) {
                    123:                addr = NULL;
                    124:                switch (sa->sa_family) {
                    125:                case AF_INET:
                    126:                        addr = &((struct sockaddr_in*)sa)->sin_addr;
                    127:                        break;
                    128:                case AF_INET6:
                    129:                        addr = &((struct sockaddr_in6*)sa)->sin6_addr;
                    130:                        break;
                    131:                }
                    132:                if (inet_ntop(sa->sa_family, addr, p + 1, reslen - 3) != NULL) {
                    133:                        *p++ = '[';
                    134:                        len = strlen(p);
                    135:                        p += len;
                    136:                        *p++ = ']';
                    137:                        *p++ = ' ';
                    138:                        reslen -= len + 3;
                    139:                }
                    140:        }
                    141: 
                    142:        if (pri < ARRAYLEN(ptab)) {
                    143:                len = snprintf(p, reslen, "%s: ", ptab[pri].name);
                    144:                p += len;
                    145:                reslen -= len;
                    146:        }
                    147: 
                    148:        if (print_location)
                    149:                len = snprintf(p, reslen, "%s: %s", func, fmt);
                    150:        else
                    151:                len = snprintf(p, reslen, "%s", fmt);
                    152:        p += len;
                    153:        reslen -= len;
                    154: 
                    155:        /* Force nul termination */
                    156:        if (reslen == 0)
                    157:                p[-1] = 0;
                    158: 
                    159: #ifdef BROKEN_PRINTF
                    160:        while ((p = strstr(buf,"%z")) != NULL)
                    161:                p[1] = 'l';
                    162: #endif
                    163: 
                    164:        return buf;
                    165: }
                    166: 
                    167: void
                    168: _plog(int pri, const char *func, struct sockaddr *sa, const char *fmt, ...)
                    169: {
                    170:        va_list ap;
                    171: 
                    172:        va_start(ap, fmt);
                    173:        plogv(pri, func, sa, fmt, ap);
                    174:        va_end(ap);
                    175: }
                    176: 
                    177: void
                    178: plogv(int pri, const char *func, struct sockaddr *sa,
                    179:        const char *fmt, va_list ap)
                    180: {
                    181:        char *newfmt;
                    182:        va_list ap_bak;
                    183: 
                    184:        if (pri > loglevel)
                    185:                return;
                    186: 
                    187:        newfmt = plog_common(pri, fmt, func, sa);
                    188: 
                    189:        VA_COPY(ap_bak, ap);
                    190:        
                    191:        if (f_foreground)
                    192:                vprintf(newfmt, ap);
                    193: 
                    194:        if (logfile)
                    195:                log_vaprint(logp, newfmt, ap_bak);
                    196:        else {
                    197:                if (pri < ARRAYLEN(ptab))
                    198:                        vsyslog(ptab[pri].priority, newfmt, ap_bak);
                    199:                else
                    200:                        vsyslog(LOG_ALERT, newfmt, ap_bak);
                    201:        }
                    202: }
                    203: 
                    204: void
                    205: plogdump(pri, data, len)
                    206:        int pri;
                    207:        void *data;
                    208:        size_t len;
                    209: {
                    210:        caddr_t buf;
                    211:        size_t buflen;
                    212:        int i, j;
                    213: 
                    214:        if (pri > loglevel)
                    215:                return;
                    216: 
                    217:        /*
                    218:         * 2 words a bytes + 1 space 4 bytes + 1 newline 32 bytes
                    219:         * + 2 newline + '\0'
                    220:         */
                    221:        buflen = (len * 2) + (len / 4) + (len / 32) + 3;
                    222:        buf = racoon_malloc(buflen);
                    223: 
                    224:        i = 0;
                    225:        j = 0;
                    226:        while (j < len) {
                    227:                if (j % 32 == 0)
                    228:                        buf[i++] = '\n';
                    229:                else
                    230:                if (j % 4 == 0)
                    231:                        buf[i++] = ' ';
                    232:                snprintf(&buf[i], buflen - i, "%02x",
                    233:                        ((unsigned char *)data)[j] & 0xff);
                    234:                i += 2;
                    235:                j++;
                    236:        }
                    237:        if (buflen - i >= 2) {
                    238:                buf[i++] = '\n';
                    239:                buf[i] = '\0';
                    240:        }
                    241:        plog(pri, LOCATION, NULL, "%s", buf);
                    242: 
                    243:        racoon_free(buf);
                    244: }
                    245: 
                    246: void
                    247: ploginit()
                    248: {
                    249:        if (logfile) {
                    250:                logp = log_open(250, logfile);
                    251:                if (logp == NULL)
                    252:                        errx(1, "ERROR: failed to open log file %s.", logfile);
                    253:                return;
                    254:        }
                    255: 
                    256:         openlog(pname, LOG_NDELAY, LOG_DAEMON);
                    257: }
                    258: 
                    259: void
                    260: plogset(file)
                    261:        char *file;
                    262: {
                    263:        if (logfile != NULL)
                    264:                racoon_free(logfile);
                    265:        logfile = racoon_strdup(file);
                    266:        STRDUP_FATAL(logfile);
                    267: }
                    268: 
                    269: /*
                    270:    Returns a printable string from (possibly) binary data ;
                    271:    concatenates all unprintable chars to one space.
                    272:    XXX Maybe the printable chars range is too large...
                    273:  */
                    274: char*
                    275: binsanitize(binstr, n)
                    276:        char *binstr;
                    277:        size_t n;
                    278: {
                    279:        int p,q;
                    280:        char* d;
                    281: 
                    282:        d = racoon_malloc(n + 1);
                    283:        for (p = 0, q = 0; p < n; p++) {
                    284:                if (isgraph((int)binstr[p])) {
                    285:                        d[q++] = binstr[p];
                    286:                } else {
                    287:                        if (q && d[q - 1] != ' ')
                    288:                                d[q++] = ' ';
                    289:                }
                    290:        }
                    291:        d[q++] = '\0';
                    292: 
                    293:        return d;
                    294: }
                    295:        

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