BSD 4_1c_2 release

[unix-history] / usr / src / usr.lib / sendmail / aux / logger.c

# include <stdio.h>
# include <syslog.h>

# ifndef lint
static char     SccsId[] =      "@(#)logger.c   1.2             7/22/82";
# endif lint

/*
**  LOGGER -- read and log utility
**
**      This routine reads from an input and arranges to write the
**      result on the system log, along with a useful tag.
*/

main(argc, argv)
       int argc;
       char **argv;
{
       char buf[200];
       char *tag;
       register char *p;
       int pri = LOG_NOTICE;
       int logflags = 0;
       extern char *getlogin();

       /* initialize */
       tag = getlogin();

       /* crack arguments */
       while (--argc > 0)
       {
               p = *++argv;
               if (*p != '-')
                       break;

               switch (*++p)
               {
                 case '\0':            /* dummy */
                       /* this can be used to give null parameters */
                       break;

                 case 't':             /* tag */
                       if (argc > 1 && argv[1][0] != '-')
                       {
                               argc--;
                               tag = *++argv;
                       }
                       else
                               tag = NULL;
                       break;

                 case 'p':             /* priority */
                       if (argc > 1 && argv[1][0] != '-')
                       {
                               argc--;
                               pri = atoi(*++argv);
                       }
                       break;

                 case 'i':             /* log process id also */
                       logflags |= LOG_PID;
                       break;

                 case 'f':             /* file to log */
                       if (argc > 1 && argv[1][0] != '-')
                       {
                               argc--;
                               if (freopen(*++argv, "r", stdin) == NULL)
                               {
                                       fprintf("logger: ");
                                       perror(*argv);
                                       exit(1);
                               }
                       }
                       break;

                 default:
                       fprintf(stderr, "logger: unknown flag -%s\n", p);
                       break;
               }
       }

       /* setup for logging */
       openlog(tag, logflags);
       (void) fclose(stdout);

       /* log input line if appropriate */
       if (argc > 0)
       {
               char buf[120];

               buf[0] = '\0';
               while (argc-- > 0)
               {
                       strcat(buf, " ");
                       strcat(buf, *argv++);
               }
               syslog(pri, buf + 1);
               exit(0);
       }

       /* main loop */
       while (fgets(buf, sizeof buf, stdin) != NULL)
               syslog(pri, buf);

       exit(0);
}