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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <errno.h> |
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#include <string.h> |
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#include <stdarg.h> |
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#include <signal.h> |
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#include <limits.h> |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <fcntl.h> |
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#include <time.h> |
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|
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#include "config.h" |
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#include "imapfilter.h" |
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|
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|
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extern char logfile[PATH_MAX]; |
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extern unsigned int options; |
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|
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static FILE *logfp = NULL; /* Pointer to logfile. */ |
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|
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|
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/* |
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* Print message if not in OPTION_DETAILS_QUIET mode. |
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*/ |
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void info(const char *info,...) |
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{ |
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va_list args; |
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|
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if (options & OPTION_DETAILS_QUIET) |
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return; |
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|
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va_start(args, info); |
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vprintf(info, args); |
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va_end(args); |
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} |
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|
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|
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/* |
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* Print message if in OPTION_DETAILS_VERBOSE mode. |
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*/ |
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void verbose(const char *info,...) |
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{ |
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va_list args; |
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|
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if (options & OPTION_DETAILS_VERBOSE) { |
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va_start(args, info); |
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vprintf(info, args); |
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va_end(args); |
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} |
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} |
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|
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|
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/* |
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* Print error message and write it into logfile. |
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*/ |
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void error(const char *errmsg,...) |
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{ |
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va_list args; |
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|
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va_start(args, errmsg); |
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|
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vfprintf(stderr, errmsg, args); |
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|
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if (logfp) { |
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vfprintf(logfp, errmsg, args); |
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} |
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va_end(args); |
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} |
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|
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|
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/* |
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* Print error message and exit program. |
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*/ |
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void fatal(unsigned int errnum, const char *fatal,...) |
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{ |
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va_list args; |
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|
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va_start(args, fatal); |
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vfprintf(stderr, fatal, args); |
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va_end(args); |
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|
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close_connection(); |
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secmem_clear(); |
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tty_restore(); |
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close_logfile(); |
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lockfile_remove(); |
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|
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exit(errnum); |
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} |
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|
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|
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/* |
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* Catch signals that cause program's termination. |
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*/ |
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void catch_signals(void) |
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{ |
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signal(SIGINT, signal_handler); |
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signal(SIGQUIT, signal_handler); |
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signal(SIGTERM, signal_handler); |
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} |
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|
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|
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/* |
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* Signal handler for signals that cause termination of program. |
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*/ |
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void signal_handler(int sig) |
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{ |
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fatal(ERROR_SIGNAL, "imapfilter: killed by signal %d\n", sig); |
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} |
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|
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|
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/* |
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* Open the file for saving of logging information. |
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*/ |
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int open_logfile(void) |
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{ |
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if (!*logfile) |
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return 0; /* Logging not enabled. */ |
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|
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#ifdef DEBUG |
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printf("debug: logfile: '%s'\n", logfile); |
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#endif |
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|
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if (create_file(logfile, S_IRUSR | S_IWUSR)) |
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return ERROR_TRIVIAL; |
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|
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logfp = fopen(logfile, "a"); |
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|
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if (!logfp) { |
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error("imapfilter: opening logfile %s: %s\n", |
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logfile, strerror(errno)); |
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return ERROR_TRIVIAL; |
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} |
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return 0; |
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} |
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|
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|
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/* |
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* Close the logfile. |
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*/ |
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int close_logfile(void) |
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{ |
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if (!logfp) |
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return 0; |
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else |
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return fclose(logfp); |
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} |
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|
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|
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/* |
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* Prepares the log entry to be saved through continues calls, and writes it |
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* to logfile. |
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*/ |
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void log_info(int flag, void *ptr) |
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{ |
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static struct { |
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char *server; |
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char *username; |
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char *mbox; |
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char *filter; |
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unsigned int *action; |
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char *destmbox; |
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char *hdrs; |
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} inf = { |
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NULL, NULL, NULL, NULL, NULL, NULL, NULL |
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}; |
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|
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if (!logfp) |
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return; |
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|
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switch (flag) { |
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case LOG_WRITE: |
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fprintf(logfp, "%s %s %s %s %s %s%s\n", get_time(), |
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inf.server, inf.username, inf.mbox, inf.filter, |
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(*inf.action == FILTER_ACTION_DELETE ? "delete" : |
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*inf.action == FILTER_ACTION_COPY ? "copy " : |
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*inf.action == FILTER_ACTION_MOVE ? "move " : "list"), |
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(!*inf.destmbox ? "" : inf.destmbox)); |
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|
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if (ptr) { |
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inf.hdrs = (char *) ptr; |
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fputc('\t', logfp); |
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while (*inf.hdrs) { |
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if (*inf.hdrs == '\n') { |
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fputc('\n', logfp); |
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if (*(inf.hdrs + 1)) |
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fputc('\t', logfp); |
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inf.hdrs++; |
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} else |
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fputc(*(inf.hdrs++), logfp); |
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} |
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} |
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break; |
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case LOG_SERVER: |
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inf.server = (char *) ptr; |
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break; |
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case LOG_USERNAME: |
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inf.username = (char *) ptr; |
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break; |
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case LOG_MAILBOX: |
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inf.mbox = (char *) ptr; |
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break; |
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case LOG_FILTER: |
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inf.filter = (char *) ptr; |
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break; |
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case LOG_ACTION: |
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inf.action = (unsigned int *) ptr; |
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break; |
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case LOG_DESTINATION_MAILBOX: |
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inf.destmbox = (char *) ptr; |
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break; |
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} |
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} |
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|
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|
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/* |
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* Return current local time and date. |
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*/ |
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char *get_time(void) |
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{ |
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char *ct; |
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time_t t; |
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|
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t = time(NULL); |
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|
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ct = ctime(&t); |
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*(strchr(ct, '\n')) = 0; |
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|
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return ct; |
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} |
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