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- removed minilogd and its calls (more pain than gain)
[projects/rc-scripts.git] / src / initlog.c
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1/*
2 * Copyright (c) 1999-2003 Red Hat, Inc. All rights reserved.
3 *
4 * This software may be freely redistributed under the terms of the GNU
5 * public license.
6 *
7 * You should have received a copy of the GNU General Public License
8 * along with this program; if not, write to the Free Software
9 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
10 *
11 */
cee18a41 12
de1fc6ce 13#include <ctype.h>
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14#include <errno.h>
15#include <fcntl.h>
16#include <libintl.h>
17#include <locale.h>
18#include <stdio.h>
19#include <stdlib.h>
20#include <string.h>
21#include <unistd.h>
22
23#define SYSLOG_NAMES
24#include <syslog.h>
25
de1fc6ce 26#include <sys/socket.h>
cee18a41 27#include <sys/stat.h>
de1fc6ce 28#include <sys/un.h>
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29#include <sys/wait.h>
30
31#define _(String) gettext((String))
32
33#include <popt.h>
34
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35#include <regex.h>
36
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37#include "initlog.h"
38#include "process.h"
39
458f14b7 40static int logfacility=LOG_DAEMON;
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41static int logpriority=LOG_NOTICE;
42static int reexec=0;
43static int quiet=0;
44int debug=0;
45
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46regex_t **regList = NULL;
47
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48static int logEntries = 0;
49struct logInfo *logData = NULL;
50
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51void readConfiguration(char *fname) {
52 int fd,num=0;
53 struct stat sbuf;
54 char *data,*line;
55 regex_t *regexp;
56 int lfac=-1,lpri=-1;
57
58 if ((fd=open(fname,O_RDONLY))==-1) return;
59 if (fstat(fd,&sbuf)) {
60 close(fd);
61 return;
62 }
63 data=malloc(sbuf.st_size+1);
64 if (read(fd,data,sbuf.st_size)!=sbuf.st_size) {
65 close(fd);
52471a31 66 free(data);
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67 return;
68 }
69 close(fd);
70 data[sbuf.st_size] = '\0';
71 while ((line=getLine(&data))) {
72 if (line[0]=='#') continue;
73 if (!strncmp(line,"ignore ",7)) {
74 regexp = malloc(sizeof(regex_t));
75 if (!regcomp(regexp,line+7,REG_EXTENDED|REG_NOSUB|REG_NEWLINE)) {
76 regList = realloc(regList,(num+2) * sizeof(regex_t *));
77 regList[num] = regexp;
78 regList[num+1] = NULL;
79 num++;
80 }
81 }
82 if (!strncmp(line,"facility ",9)) {
83 lfac=atoi(line+9);
84 if ((lfac == 0) && strcmp(line+9,"0")) {
85 int x =0;
86
87 lfac = LOG_DAEMON;
88 for (x=0;facilitynames[x].c_name;x++) {
89 if (!strcmp(line+9,facilitynames[x].c_name)) {
90 lfac = facilitynames[x].c_val;
91 break;
92 }
93 }
94 }
95 }
96 if (!strncmp(line,"priority ",9)) {
97 lpri = atoi(line+9);
98 if ((lpri == 0) && strcmp(line+9,"0")) {
99 int x=0;
100
101 lpri = LOG_NOTICE;
102 for (x=0;prioritynames[x].c_name;x++) {
103 if (!strcmp(line+9,prioritynames[x].c_name)) {
104 lpri = prioritynames[x].c_val;
105 break;
106 }
107 }
108 }
109 }
110 }
111 if (lfac!=-1) logfacility=lfac;
112 if (lpri!=-1) logpriority=lpri;
113}
114
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115char *getLine(char **data) {
116 /* Get one line from data */
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117 /* Anything up to a carraige return (\r) or a backspace (\b) is discarded. */
118 /* If this really bothers you, mail me and I might make it configurable. */
119 /* It's here to avoid confilcts with fsck's progress bar. */
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120 char *x, *y;
121
122 if (!*data) return NULL;
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123 x=*data;
124 while (*x && (*x != '\n')) {
125 while (*x && (*x != '\n') && (*x != '\r') && (*x != '\b')) x++;
126 if (*x && (*x=='\r' || *x =='\b')) {
127 *data = x+1;
128 x++;
129 }
130 }
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131 if (*x) {
132 x++;
133 } else {
134 if (x-*data) {
135 y=malloc(x-*data+1);
136 y[x-*data] = 0;
137 y[x-*data-1] = '\n';
138 memcpy(y,*data,x-*data);
139 } else {
140 y=NULL;
141 }
142 *data = NULL;
143 return y;
144 }
145 y = malloc(x-*data);
146 y[x-*data-1] = 0;
147 memcpy(y,*data,x-*data-1);
148 *data = x;
149 return y;
150}
151
152char **toArray(char *line, int *num) {
153 /* Converts a long string into an array of lines. */
154 char **lines;
155 char *tmpline;
156
157 *num = 0;
158 lines = NULL;
159
160 while ((tmpline=getLine(&line))) {
161 if (!*num)
162 lines = (char **) malloc(sizeof(char *));
163 else
164 lines = (char **) realloc(lines, (*num+1)*sizeof(char *));
165 lines[*num] = tmpline;
166 (*num)++;
167 }
168 return lines;
169}
170
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171int trySocket() {
172 int s;
173 struct sockaddr_un addr;
174
175 s = socket(AF_LOCAL, SOCK_DGRAM, 0);
176 if (s<0)
177 return 1;
178
179 bzero(&addr,sizeof(addr));
180 addr.sun_family = AF_LOCAL;
181 strncpy(addr.sun_path,_PATH_LOG,sizeof(addr.sun_path)-1);
182
183 if (connect(s,(struct sockaddr *) &addr,sizeof(addr))<0) {
184 if (errno == EPROTOTYPE) {
185 DDEBUG("connect failed (EPROTOTYPE), trying stream\n");
186 close(s);
187 s = socket(AF_LOCAL, SOCK_STREAM, 0);
188 if (connect(s,(struct sockaddr *) &addr, sizeof(addr)) < 0) {
189 DDEBUG("connect failed: %s\n",strerror(errno));
190 close(s);
191 return 1;
192 }
193 close(s);
194 return 0;
195 }
196 close(s);
197 DDEBUG("connect failed: %s\n",strerror(errno));
198 return 1;
199 } else {
200 close(s);
201 return 0;
202 }
203}
204
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205int logLine(struct logInfo *logEnt) {
206 /* Logs a line... somewhere. */
458f14b7 207 int x;
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208 struct stat statbuf;
209
210 /* Don't log empty or null lines */
211 if (!logEnt->line || !strcmp(logEnt->line,"\n")) return 0;
212
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213
214 if ( ((stat(_PATH_LOG,&statbuf)==-1) || trySocket())
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215 ) {
216 DDEBUG("starting daemon failed, pooling entry %d\n",logEntries);
217 logData=realloc(logData,(logEntries+1)*sizeof(struct logInfo));
218 logData[logEntries]= (*logEnt);
219 logEntries++;
220 } else {
221 if (logEntries>0) {
222 for (x=0;x<logEntries;x++) {
223 DDEBUG("flushing log entry %d =%s=\n",x,logData[x].line);
224 openlog(logData[x].cmd,0,logData[x].fac);
225 syslog(logData[x].pri,"%s",logData[x].line);
226 closelog();
227 }
228 free(logData);
229 logEntries = 0;
230 }
231 DDEBUG("logging =%s= via syslog\n",logEnt->line);
232 openlog(logEnt->cmd,0,logEnt->fac);
233 syslog(logEnt->pri,"%s",logEnt->line);
234 closelog();
235 }
236 return 0;
237}
238
239int logEvent(char *cmd, int eventtype,char *string) {
240 char *eventtable [] = {
241 _("%s babbles incoherently"),
242 _("%s succeeded"),
243 _("%s failed"),
244 _("%s cancelled at user request"),
245 _("%s failed due to a failed dependency"),
246 /* insert more here */
247 NULL
248 };
249 int x=0,len;
250 struct logInfo logentry;
251
252 if (cmd) {
de1fc6ce 253 logentry.cmd = strdup(basename(cmd));
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254 if ((logentry.cmd[0] =='K' || logentry.cmd[0] == 'S') &&
255 ( logentry.cmd[1] >= '0' && logentry.cmd[1] <= '9' ) &&
256 ( logentry.cmd[2] >= '0' && logentry.cmd[2] <= '9' ) )
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257 logentry.cmd+=3;
258 } else
259 logentry.cmd = strdup(_("(none)"));
260 if (!string)
261 string = strdup(cmd);
262
263 while (eventtable[x] && x<eventtype) x++;
264 if (!(eventtable[x])) x=0;
265
266 len=strlen(eventtable[x])+strlen(string);
267 logentry.line=malloc(len);
268 snprintf(logentry.line,len,eventtable[x],string);
269
270 logentry.pri = logpriority;
271 logentry.fac = logfacility;
272
273 return logLine(&logentry);
274}
275
276int logString(char *cmd, char *string) {
277 struct logInfo logentry;
278
279 if (cmd) {
de1fc6ce 280 logentry.cmd = strdup(basename(cmd));
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281 if ((logentry.cmd[0] =='K' || logentry.cmd[0] == 'S') &&
282 ( logentry.cmd[1] >= '0' && logentry.cmd[1] <= 0x39 ) &&
283 ( logentry.cmd[2] >= '0' && logentry.cmd[2] <= 0x39 ) )
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284 logentry.cmd+=3;
285 } else
286 logentry.cmd = strdup(_(""));
287 logentry.line = strdup(string);
288 logentry.pri = logpriority;
289 logentry.fac = logfacility;
290
291 return logLine(&logentry);
292}
293
294int processArgs(int argc, char **argv, int silent) {
295 char *cmdname=NULL;
458f14b7 296 char *conffile=NULL;
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297 int cmdevent=0;
298 char *cmd=NULL;
299 char *logstring=NULL;
300 char *fac=NULL,*pri=NULL;
458f14b7 301 int lfac=-1, lpri=-1;
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302 poptContext context;
303 int rc;
304 struct poptOption optTable[] = {
305 POPT_AUTOHELP
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306 { "conf", 0, POPT_ARG_STRING, &conffile, 0,
307 "configuration file (default: /etc/initlog.conf)", NULL
308 },
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309 { "name", 'n', POPT_ARG_STRING, &cmdname, 0,
310 "name of service being logged", NULL
311 },
312 { "event", 'e', POPT_ARG_INT, &cmdevent, 0,
313 "event being logged (see man page)", NULL
314 },
315 { "cmd", 'c', POPT_ARG_STRING, &cmd, 0,
316 "command to run, logging output", NULL
317 },
318 { "debug", 'd', POPT_ARG_NONE, &debug, 0,
319 "print lots of verbose debugging info", NULL
320 },
321 { "run", 'r', POPT_ARG_STRING, &cmd, 3,
322 "command to run, accepting input on open fd", NULL
323 },
324 { "string", 's', POPT_ARG_STRING, &logstring, 0,
325 "string to log", NULL
326 },
327 { "facility", 'f', POPT_ARG_STRING, &fac, 1,
458f14b7 328 "facility to log at (default: 'local7')", NULL
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329 },
330 { "priority", 'p', POPT_ARG_STRING, &pri, 2,
331 "priority to log at (default: 'notice')", NULL
332 },
333 { "quiet", 'q', POPT_ARG_NONE, &quiet, 0,
334 "suppress stdout/stderr", NULL
335 },
336 { 0, 0, 0, 0, 0, 0 }
337 };
338
339 context = poptGetContext("initlog", argc, argv, optTable, 0);
340
341 while ((rc = poptGetNextOpt(context)) > 0) {
342 switch (rc) {
343 case 1:
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344 lfac=atoi(fac);
345 if ((lfac == 0) && strcmp(fac,"0")) {
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346 int x =0;
347
458f14b7 348 lfac = LOG_DAEMON;
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349 for (x=0;facilitynames[x].c_name;x++) {
350 if (!strcmp(fac,facilitynames[x].c_name)) {
458f14b7 351 lfac = facilitynames[x].c_val;
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352 break;
353 }
354 }
355 }
356 break;
357 case 2:
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358 lpri = atoi(pri);
359 if ((lpri == 0) && strcmp(pri,"0")) {
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360 int x=0;
361
458f14b7 362 lpri = LOG_NOTICE;
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363 for (x=0;prioritynames[x].c_name;x++) {
364 if (!strcmp(pri,prioritynames[x].c_name)) {
458f14b7 365 lpri = prioritynames[x].c_val;
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366 break;
367 }
368 }
369 }
370 break;
371 case 3:
372 reexec = 1;
373 break;
374 default:
375 break;
376 }
377 }
378
379 if ((rc < -1)) {
380 if (!silent)
381 fprintf(stderr, "%s: %s\n",
382 poptBadOption(context, POPT_BADOPTION_NOALIAS),
383 poptStrerror(rc));
384
385 return -1;
386 }
387 if ( (cmd && logstring) || (cmd && cmdname) ) {
388 if (!silent)
389 fprintf(stderr, _("--cmd and --run are incompatible with --string or --name\n"));
390 return -1;
391 }
392 if ( cmdname && (!logstring && !cmdevent)) {
393 if (!silent)
394 fprintf(stderr, _("--name requires one of --event or --string\n"));
395 return -1;
396 }
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397 if (cmdevent && cmd) {
398 if (!silent)
399 fprintf(stderr, _("--cmd and --run are incompatible with --event\n"));
400 return -1;
401 }
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402 if (conffile) {
403 readConfiguration(conffile);
404 } else {
405 readConfiguration("/etc/initlog.conf");
406 }
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407 if (cmd) {
408 while (isspace(*cmd)) cmd++;
409 }
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410 if (lpri!=-1) logpriority=lpri;
411 if (lfac!=-1) logfacility=lfac;
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412 if (cmdevent) {
413 logEvent(cmdname,cmdevent,logstring);
414 } else if (logstring) {
415 logString(cmdname,logstring);
de1fc6ce 416 } else if ( cmd && *cmd) {
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417 return(runCommand(cmd,reexec,quiet,debug));
418 } else {
419 if (!silent)
420 fprintf(stderr,"nothing to do!\n");
421 return -1;
422 }
423 return 0;
424}
425
426int main(int argc, char **argv) {
427
428 setlocale(LC_ALL,"");
429 bindtextdomain("initlog","/etc/locale");
430 textdomain("initlog");
431 exit(processArgs(argc,argv,0));
432}
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