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@ -29,75 +29,74 @@ |
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#define BUFSIZE 8192 |
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static FILE *log_fd = NULL; |
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static int log_prio = LOG_EVERYTIME; |
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static char *buffer = NULL; |
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void log_print(int prio, const char *fmt, ...) |
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int log_print(int prio, const char *fmt, ...) |
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{ |
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va_list az; |
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int len; |
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int len = 0, retval; |
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if (prio < log_prio) |
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return 0; |
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if (buffer == NULL) { |
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buffer = malloc(BUFSIZE); |
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if (buffer == NULL) { |
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fprintf(stderr, "log_print: out of memory\nBailing out!\n"); |
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exit(-1); |
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fprintf(stderr, "log_print(): out of memory\n"); |
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return -1; |
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} |
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} |
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if (log_fd != NULL) { |
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time_t tzgr; |
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time(&tzgr); |
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len += strftime(buffer, BUFSIZE, "%b %d %H:%M:%S :", localtime(&tzgr)); |
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} |
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va_start(az, fmt); |
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len = vsnprintf(buffer, BUFSIZE, fmt, az); |
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len += vsnprintf(buffer + len, BUFSIZE - len, fmt, az); |
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va_end(az); |
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if (len < 0 || len >= BUFSIZE) { |
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log_print(LOG_ERROR, "log_print: arguments too long"); |
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errno = 0; |
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return; |
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return log_print(LOG_ERROR, "log_print: arguments too long"); |
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} |
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if (errno) { |
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strncpy(buffer + len, ": ", BUFSIZE - len); |
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len += 2; |
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strncpy(buffer + len, strerror(errno), BUFSIZE - len); |
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} |
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if (log_fd) { |
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char tbuf[64]; |
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time_t tzgr; |
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time(&tzgr); |
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strftime(tbuf, sizeof(tbuf), "%b %d %H:%M:%S :", localtime(&tzgr)); |
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fprintf(log_fd, "%s %s\n", tbuf, buffer); |
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fflush(log_fd); |
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} else { |
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fprintf(stderr, "%s\n", buffer); |
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len += snprintf(buffer + len, BUFSIZE - len, ": %s", strerror(errno)); |
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errno = 0; |
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} |
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errno = 0; |
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retval = fprintf((log_fd ? log_fd : stderr), "%s\n", buffer); |
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fflush(log_fd); |
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return retval; |
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} |
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static void log_close(void) |
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void log_close(void) |
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{ |
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if (buffer) |
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free(buffer); |
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fclose(log_fd); |
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if (log_fd) |
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fclose(log_fd); |
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} |
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int log_init(char *logfile) |
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int log_init(const char *logfile) |
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{ |
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if (log_fd != NULL) |
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log_close(); |
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log_fd = fopen(logfile, "a"); |
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if (log_fd == NULL) { |
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log_print(LOG_ERROR, "log_open('%s'): %s", logfile); |
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return 0; |
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} |
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if (atexit(log_close) != 0) { |
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log_print(LOG_ERROR, "log_open(): atexit()"); |
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return 0; |
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fprintf(stderr, "log_init(): can not open logfile"); |
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return -1; |
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} |
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return 0; |
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} |
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log_print(LOG_EVERYTIME, "=========================="); |
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return 1; |
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void log_setprio(int prio) |
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{ |
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log_prio = prio; |
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} |