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1 | /* | |
2 | * Copyright (c) 1983, 1993 | |
3 | * The Regents of the University of California. All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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 | #ifndef lint | |
35 | static char copyright[] = | |
36 | "@(#) Copyright (c) 1983, 1993\n\ | |
37 | The Regents of the University of California. All rights reserved.\n"; | |
38 | #endif /* not lint */ | |
39 | ||
40 | #ifndef lint | |
41 | static char sccsid[] = "@(#)logger.c 8.1 (Berkeley) 6/6/93"; | |
42 | #endif /* not lint */ | |
43 | ||
44 | #include <errno.h> | |
45 | #include <unistd.h> | |
46 | #include <stdlib.h> | |
47 | #include <stdio.h> | |
48 | #include <ctype.h> | |
49 | #include <string.h> | |
50 | ||
51 | #define SYSLOG_NAMES | |
52 | #include <syslog.h> | |
53 | ||
54 | int decode __P((char *, CODE *)); | |
55 | int pencode __P((char *)); | |
56 | void usage __P((void)); | |
57 | ||
58 | /* | |
59 | * logger -- read and log utility | |
60 | * | |
61 | * Reads from an input and arranges to write the result on the system | |
62 | * log. | |
63 | */ | |
64 | int | |
65 | main(argc, argv) | |
66 | int argc; | |
67 | char *argv[]; | |
68 | { | |
69 | int ch, logflags, pri; | |
70 | char *tag, buf[1024]; | |
71 | ||
72 | tag = NULL; | |
73 | pri = LOG_NOTICE; | |
74 | logflags = 0; | |
75 | while ((ch = getopt(argc, argv, "f:ip:st:")) != EOF) | |
76 | switch((char)ch) { | |
77 | case 'f': /* file to log */ | |
78 | if (freopen(optarg, "r", stdin) == NULL) { | |
79 | (void)fprintf(stderr, "logger: %s: %s.\n", | |
80 | optarg, strerror(errno)); | |
81 | exit(1); | |
82 | } | |
83 | break; | |
84 | case 'i': /* log process id also */ | |
85 | logflags |= LOG_PID; | |
86 | break; | |
87 | case 'p': /* priority */ | |
88 | pri = pencode(optarg); | |
89 | break; | |
90 | case 's': /* log to standard error */ | |
91 | logflags |= LOG_PERROR; | |
92 | break; | |
93 | case 't': /* tag */ | |
94 | tag = optarg; | |
95 | break; | |
96 | case '?': | |
97 | default: | |
98 | usage(); | |
99 | } | |
100 | argc -= optind; | |
101 | argv += optind; | |
102 | ||
103 | /* setup for logging */ | |
104 | openlog(tag ? tag : getlogin(), logflags, 0); | |
105 | (void) fclose(stdout); | |
106 | ||
107 | /* log input line if appropriate */ | |
108 | if (argc > 0) { | |
109 | register char *p, *endp; | |
110 | int len; | |
111 | ||
112 | for (p = buf, endp = buf + sizeof(buf) - 2; *argv;) { | |
113 | len = strlen(*argv); | |
114 | if (p + len > endp && p > buf) { | |
115 | syslog(pri, "%s", buf); | |
116 | p = buf; | |
117 | } | |
118 | if (len > sizeof(buf) - 1) | |
119 | syslog(pri, "%s", *argv++); | |
120 | else { | |
121 | if (p != buf) | |
122 | *p++ = ' '; | |
123 | bcopy(*argv++, p, len); | |
124 | *(p += len) = '\0'; | |
125 | } | |
126 | } | |
127 | if (p != buf) | |
128 | syslog(pri, "%s", buf); | |
129 | } else | |
130 | while (fgets(buf, sizeof(buf), stdin) != NULL) | |
131 | syslog(pri, "%s", buf); | |
132 | exit(0); | |
133 | } | |
134 | ||
135 | /* | |
136 | * Decode a symbolic name to a numeric value | |
137 | */ | |
138 | int | |
139 | pencode(s) | |
140 | register char *s; | |
141 | { | |
142 | char *save; | |
143 | int fac, lev; | |
144 | ||
145 | for (save = s; *s && *s != '.'; ++s); | |
146 | if (*s) { | |
147 | *s = '\0'; | |
148 | fac = decode(save, facilitynames); | |
149 | if (fac < 0) { | |
150 | (void)fprintf(stderr, | |
151 | "logger: unknown facility name: %s.\n", save); | |
152 | exit(1); | |
153 | } | |
154 | *s++ = '.'; | |
155 | } | |
156 | else { | |
157 | fac = 0; | |
158 | s = save; | |
159 | } | |
160 | lev = decode(s, prioritynames); | |
161 | if (lev < 0) { | |
162 | (void)fprintf(stderr, | |
163 | "logger: unknown priority name: %s.\n", save); | |
164 | exit(1); | |
165 | } | |
166 | return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK)); | |
167 | } | |
168 | ||
169 | int | |
170 | decode(name, codetab) | |
171 | char *name; | |
172 | CODE *codetab; | |
173 | { | |
174 | register CODE *c; | |
175 | ||
176 | if (isdigit(*name)) | |
177 | return (atoi(name)); | |
178 | ||
179 | for (c = codetab; c->c_name; c++) | |
180 | if (!strcasecmp(name, c->c_name)) | |
181 | return (c->c_val); | |
182 | ||
183 | return (-1); | |
184 | } | |
185 | ||
186 | void | |
187 | usage() | |
188 | { | |
189 | (void)fprintf(stderr, | |
190 | "logger: [-is] [-f file] [-p pri] [-t tag] [ message ... ]\n"); | |
191 | exit(1); | |
192 | } |