1 |
lefcha |
1.1 |
#include <stdio.h> |
2 |
lefcha |
1.35 |
#include <stdlib.h> |
3 |
lefcha |
1.34 |
#include <string.h> |
4 |
lefcha |
1.1 |
#include <errno.h> |
5 |
lefcha |
1.35 |
#include <stdarg.h> |
6 |
lefcha |
1.34 |
#include <limits.h> |
7 |
lefcha |
1.38 |
#include <sys/types.h> |
8 |
lefcha |
1.9 |
#include <sys/stat.h> |
9 |
lefcha |
1.12 |
#include <time.h> |
10 |
lefcha |
1.38 |
#include <signal.h> |
11 |
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1.1 |
|
12 |
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#include "config.h" |
13 |
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#include "imapfilter.h" |
14 |
lefcha |
1.40 |
#include "pathnames.h" |
15 |
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1.1 |
|
16 |
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|
17 |
lefcha |
1.33 |
extern conn_t connpri, connaux; |
18 |
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1.5 |
extern char logfile[PATH_MAX]; |
19 |
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1.8 |
extern unsigned int options; |
20 |
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1.41 |
extern int verbosity; |
21 |
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1.32 |
extern unsigned int flags; |
22 |
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1.6 |
|
23 |
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1.40 |
static FILE *debugfp = NULL; /* Pointer to debug file. */ |
24 |
lefcha |
1.10 |
static FILE *logfp = NULL; /* Pointer to logfile. */ |
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lefcha |
1.34 |
|
26 |
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27 |
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void signal_handler(int sig); |
28 |
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char *get_time(void); |
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lefcha |
1.1 |
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30 |
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/* |
32 |
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1.41 |
* Print message if not in the lowest verbosity level. |
33 |
lefcha |
1.7 |
*/ |
34 |
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1.30 |
void |
35 |
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info(const char *info,...) |
36 |
lefcha |
1.7 |
{ |
37 |
lefcha |
1.30 |
va_list args; |
38 |
lefcha |
1.14 |
|
39 |
lefcha |
1.41 |
if (verbosity == -2) |
40 |
lefcha |
1.30 |
return; |
41 |
lefcha |
1.14 |
|
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1.30 |
va_start(args, info); |
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vprintf(info, args); |
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va_end(args); |
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lefcha |
1.12 |
} |
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/* |
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1.41 |
* Print message if in the highest verbosity level. |
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lefcha |
1.1 |
*/ |
51 |
lefcha |
1.30 |
void |
52 |
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verbose(const char *info,...) |
53 |
lefcha |
1.1 |
{ |
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lefcha |
1.30 |
va_list args; |
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lefcha |
1.1 |
|
56 |
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1.41 |
if (verbosity == 2) { |
57 |
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1.30 |
va_start(args, info); |
58 |
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vprintf(info, args); |
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va_end(args); |
60 |
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} |
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lefcha |
1.1 |
} |
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|
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1.17 |
|
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1.1 |
/* |
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1.40 |
* Write message to debug file. |
66 |
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*/ |
67 |
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void |
68 |
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debug(const char *debug,...) |
69 |
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{ |
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va_list args; |
71 |
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72 |
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if ((options & OPTION_DEBUG) && debugfp) { |
73 |
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va_start(args, debug); |
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vfprintf(debugfp, debug, args); |
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fflush(debugfp); |
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va_end(args); |
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} |
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} |
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/* |
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1.10 |
* Print error message and write it into logfile. |
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1.1 |
*/ |
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1.30 |
void |
85 |
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error(const char *errmsg,...) |
86 |
lefcha |
1.1 |
{ |
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lefcha |
1.30 |
va_list args; |
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lefcha |
1.1 |
|
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lefcha |
1.30 |
va_start(args, errmsg); |
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lefcha |
1.1 |
|
91 |
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1.30 |
fprintf(stderr, "imapfilter: "); |
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vfprintf(stderr, errmsg, args); |
93 |
lefcha |
1.14 |
|
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lefcha |
1.30 |
if ((options & OPTION_ERRORS) && logfp) { |
95 |
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vfprintf(logfp, errmsg, args); |
96 |
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fflush(logfp); |
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} |
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va_end(args); |
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1.1 |
} |
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101 |
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/* |
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1.12 |
* Print error message and exit program. |
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*/ |
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1.30 |
void |
106 |
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fatal(unsigned int errnum, const char *fatal,...) |
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1.12 |
{ |
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1.30 |
va_list args; |
109 |
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110 |
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va_start(args, fatal); |
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fprintf(stderr, "imapfilter: "); |
112 |
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vfprintf(stderr, fatal, args); |
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va_end(args); |
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lefcha |
1.14 |
|
115 |
lefcha |
1.33 |
close_connection(&connpri); |
116 |
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close_connection(&connaux); |
117 |
lefcha |
1.30 |
secmem_clear(); |
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tty_restore(); |
119 |
lefcha |
1.40 |
log_stop(); |
120 |
lefcha |
1.30 |
lockfile_remove(); |
121 |
lefcha |
1.40 |
debug_stop(); |
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lefcha |
1.14 |
|
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1.30 |
exit(errnum); |
124 |
lefcha |
1.12 |
} |
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lefcha |
1.14 |
|
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lefcha |
1.18 |
|
127 |
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/* |
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1.40 |
* Catch signals that cause rereading of the configuration file or program's |
129 |
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* termination. |
130 |
lefcha |
1.18 |
*/ |
131 |
lefcha |
1.30 |
void |
132 |
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catch_signals(void) |
133 |
lefcha |
1.18 |
{ |
134 |
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1.36 |
signal(SIGUSR1, signal_handler); |
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1.30 |
signal(SIGINT, signal_handler); |
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signal(SIGQUIT, signal_handler); |
137 |
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signal(SIGTERM, signal_handler); |
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lefcha |
1.18 |
} |
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/* |
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lefcha |
1.40 |
* Signal handler for signals that cause rereading of the configuration file or |
143 |
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* termination of program. |
144 |
lefcha |
1.18 |
*/ |
145 |
lefcha |
1.30 |
void |
146 |
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signal_handler(int sig) |
147 |
lefcha |
1.18 |
{ |
148 |
lefcha |
1.39 |
if (sig == SIGUSR1) |
149 |
lefcha |
1.36 |
flags |= FLAG_SIGUSR1_RECEIVED; |
150 |
lefcha |
1.39 |
else |
151 |
lefcha |
1.32 |
fatal(ERROR_SIGNAL, "killed by signal %d\n", sig); |
152 |
lefcha |
1.18 |
} |
153 |
lefcha |
1.12 |
|
154 |
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155 |
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/* |
156 |
lefcha |
1.40 |
* Open temporary debug file and associate a stream with the returned file |
157 |
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* descriptor. |
158 |
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*/ |
159 |
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int |
160 |
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debug_start(void) |
161 |
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{ |
162 |
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static char dt[] = PATHNAME_DEBUG_FILE; |
163 |
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int fd; |
164 |
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165 |
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if (!(options & OPTION_DEBUG)) |
166 |
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return 0; |
167 |
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168 |
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fd = mkstemp(dt); |
169 |
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170 |
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if (fd != -1) { |
171 |
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debugfp = fdopen(fd, "w"); |
172 |
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if (debugfp == NULL) { |
173 |
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error("opening debug file %s: %s\n", logfile, |
174 |
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strerror(errno)); |
175 |
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return ERROR_TRIVIAL; |
176 |
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} |
177 |
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} |
178 |
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return 0; |
179 |
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} |
180 |
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181 |
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182 |
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/* |
183 |
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* Close temporary debug file. |
184 |
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*/ |
185 |
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int |
186 |
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debug_stop(void) |
187 |
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{ |
188 |
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if (debugfp == NULL) |
189 |
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return 0; |
190 |
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else |
191 |
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return fclose(debugfp); |
192 |
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} |
193 |
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194 |
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195 |
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/* |
196 |
lefcha |
1.17 |
* Open the file for saving of logging information. |
197 |
lefcha |
1.1 |
*/ |
198 |
lefcha |
1.30 |
int |
199 |
lefcha |
1.40 |
log_start(void) |
200 |
lefcha |
1.1 |
{ |
201 |
lefcha |
1.30 |
if (*logfile == '\0') |
202 |
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return 0; /* Logging not enabled. */ |
203 |
lefcha |
1.4 |
|
204 |
lefcha |
1.40 |
debug("log file: '%s'\n", logfile); |
205 |
lefcha |
1.1 |
|
206 |
lefcha |
1.30 |
if (create_file(logfile, S_IRUSR | S_IWUSR)) |
207 |
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return ERROR_TRIVIAL; |
208 |
lefcha |
1.9 |
|
209 |
lefcha |
1.30 |
logfp = fopen(logfile, "a"); |
210 |
|
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if (logfp == NULL) { |
211 |
lefcha |
1.40 |
error("opening log file %s: %s\n", logfile, strerror(errno)); |
212 |
lefcha |
1.30 |
return ERROR_TRIVIAL; |
213 |
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} |
214 |
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return 0; |
215 |
lefcha |
1.1 |
} |
216 |
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217 |
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218 |
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/* |
219 |
lefcha |
1.40 |
* Close the log file. |
220 |
lefcha |
1.1 |
*/ |
221 |
lefcha |
1.30 |
int |
222 |
lefcha |
1.40 |
log_stop(void) |
223 |
lefcha |
1.1 |
{ |
224 |
lefcha |
1.30 |
if (logfp == NULL) |
225 |
|
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return 0; |
226 |
|
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else |
227 |
|
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return fclose(logfp); |
228 |
lefcha |
1.1 |
} |
229 |
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|
230 |
lefcha |
1.13 |
|
231 |
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/* |
232 |
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* Prepares the log entry to be saved through continues calls, and writes it |
233 |
|
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* to logfile. |
234 |
|
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*/ |
235 |
lefcha |
1.30 |
void |
236 |
|
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log_info(int flag, void *ptr) |
237 |
lefcha |
1.13 |
{ |
238 |
lefcha |
1.30 |
static struct { |
239 |
|
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char *account; |
240 |
|
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char *mbox; |
241 |
|
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char *filter; |
242 |
|
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unsigned int *action; |
243 |
|
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char *destaccount; |
244 |
|
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char *destmbox; |
245 |
|
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char *hdrs; |
246 |
|
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} inf = { |
247 |
|
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NULL, NULL, NULL, NULL, NULL, NULL, NULL |
248 |
|
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}; |
249 |
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|
250 |
|
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if (logfp == NULL) |
251 |
|
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return; |
252 |
|
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|
253 |
|
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switch (flag) { |
254 |
lefcha |
1.31 |
case LOG_PREAMBLE: |
255 |
lefcha |
1.30 |
fprintf(logfp, "%s %s %s %s %s%s %s\n", get_time(), |
256 |
|
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inf.account, inf.mbox, inf.filter, |
257 |
|
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(*inf.action == FILTER_ACTION_DELETE ? "delete" : |
258 |
|
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*inf.action == FILTER_ACTION_COPY ? "copy" : |
259 |
|
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*inf.action == FILTER_ACTION_MOVE ? "move" : |
260 |
|
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*inf.action == FILTER_ACTION_RCOPY ? "rcopy " : |
261 |
|
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*inf.action == FILTER_ACTION_RMOVE ? "rmove " : |
262 |
|
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*inf.action == FILTER_ACTION_FLAG_ADD || |
263 |
|
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*inf.action == FILTER_ACTION_FLAG_REMOVE || |
264 |
|
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*inf.action == FILTER_ACTION_FLAG_REPLACE ? "flag" : |
265 |
|
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*inf.action == FILTER_ACTION_LIST ? "list" : |
266 |
|
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"unknown "), |
267 |
|
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(inf.destaccount == NULL ? "" : inf.destaccount), |
268 |
|
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(*inf.destmbox == '\0' ? "" : inf.destmbox)); |
269 |
|
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fflush(logfp); |
270 |
|
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break; |
271 |
|
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case LOG_ACCOUNT: |
272 |
|
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inf.account = (char *)ptr; |
273 |
|
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break; |
274 |
|
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case LOG_MAILBOX: |
275 |
|
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inf.mbox = (char *)ptr; |
276 |
|
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break; |
277 |
|
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case LOG_FILTER: |
278 |
|
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inf.filter = (char *)ptr; |
279 |
|
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break; |
280 |
|
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case LOG_ACTION: |
281 |
|
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inf.action = (unsigned int *)ptr; |
282 |
|
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break; |
283 |
|
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case LOG_DESTINATION_ACCOUNT: |
284 |
|
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if (ptr == NULL) |
285 |
|
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inf.destaccount = NULL; |
286 |
|
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else |
287 |
|
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inf.destaccount = ((account_t *) ptr)->key; |
288 |
|
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break; |
289 |
|
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case LOG_DESTINATION_MAILBOX: |
290 |
|
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inf.destmbox = (char *)ptr; |
291 |
lefcha |
1.31 |
break; |
292 |
|
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case LOG_HEADER: |
293 |
|
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if (ptr) { |
294 |
|
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inf.hdrs = (char *)ptr; |
295 |
|
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fputc('\t', logfp); |
296 |
|
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while (*inf.hdrs != '\0') { |
297 |
|
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if (*inf.hdrs == '\r') { |
298 |
|
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fputc('\n', logfp); |
299 |
|
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if (*(inf.hdrs + 2) != '\0') |
300 |
|
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fputc('\t', logfp); |
301 |
|
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inf.hdrs += 2; |
302 |
|
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} else |
303 |
|
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fputc(*(inf.hdrs++), logfp); |
304 |
|
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} |
305 |
|
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} |
306 |
|
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fflush(logfp); |
307 |
lefcha |
1.30 |
break; |
308 |
lefcha |
1.13 |
} |
309 |
|
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} |
310 |
lefcha |
1.14 |
|
311 |
lefcha |
1.1 |
|
312 |
lefcha |
1.2 |
/* |
313 |
lefcha |
1.12 |
* Return current local time and date. |
314 |
lefcha |
1.2 |
*/ |
315 |
lefcha |
1.30 |
char * |
316 |
|
|
get_time(void) |
317 |
lefcha |
1.1 |
{ |
318 |
lefcha |
1.30 |
char *ct; |
319 |
|
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time_t t; |
320 |
lefcha |
1.14 |
|
321 |
lefcha |
1.30 |
t = time(NULL); |
322 |
lefcha |
1.14 |
|
323 |
lefcha |
1.30 |
ct = ctime(&t); |
324 |
|
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*(strchr(ct, '\n')) = '\0'; |
325 |
lefcha |
1.1 |
|
326 |
lefcha |
1.30 |
return ct; |
327 |
lefcha |
1.1 |
} |