procan_main.c

   1 /* source: procan_main.c */
   2 /* Copyright Gerhard Rieger 2001-2008 */
   3 /* Published under the GNU General Public License V.2, see file COPYING */
   4
   5 const char copyright[] = "procan by Gerhard Rieger - send bug reports to socat@dest-unreach.org";
   6
   7 #include <stdlib.h>     /* strtoul() */
   8 #include <string.h>
   9 #include <stdio.h>
  10 #include "mytypes.h"
  11 #include "error.h"
  12 #include "procan.h"
  13 #include "hostan.h"
  14
  15
  16 #define WITH_HELP 1
  17
  18 static void procan_usage(FILE *fd);
  19
  20
  21 int main(int argc, const char *argv[]) {
  22    const char **arg1;
  23 #if 0
  24    unsigned int n = 1024;       /* this is default on my Linux */
  25 #endif
  26
  27    diag_set('p', strchr(argv[0], '/') ? strrchr(argv[0], '/')+1 : argv[0]);
  28
  29    arg1 = argv+1;  --argc;
  30    while (arg1[0] && (arg1[0][0] == '-')) {
  31       switch (arg1[0][1]) {
  32 #if WITH_HELP
  33       case '?': case 'h': procan_usage(stdout); exit(0);
  34 #endif /* WITH_HELP */
  35       case 'c': procan_cdefs(stdout); exit(0);
  36 #if LATER
  37       case 'V': procan_version(stdout); exit(0);
  38       case 'l': diag_set(arg1[0][2], &arg1[0][3]); break;
  39       case 'd': diag_set('d', NULL); break;
  40 #endif
  41 #if 0
  42       case 'n': n = strtoul(&arg1[0][2], NULL, 0); break;
  43 #endif
  44       case '\0': break;
  45       default:
  46          diag_set_int('e', E_FATAL);
  47          Error1("unknown option \"%s\"", arg1[0]);
  48 #if WITH_HELP
  49          procan_usage(stderr);
  50 #endif
  51          exit(1);
  52       }
  53       if (arg1[0][1] == '\0')
  54          break;
  55       ++arg1; --argc;
  56    }
  57    if (argc != 0) {
  58       Error1("%d superfluous arguments", argc);
  59 #if WITH_HELP
  60       procan_usage(stderr);
  61 #endif
  62       exit(1);
  63    }
  64    procan(stdout);
  65    hostan(stdout);
  66    return 0;
  67 }
  68
  69
  70 #if WITH_HELP
  71 static void procan_usage(FILE *fd) {
  72    fputs(copyright, fd); fputc('\n', fd);
  73    fputs("Analyze system parameters of process\n", fd);
  74    fputs("Usage:\n", fd);
  75    fputs("procan [options]\n", fd);
  76    fputs("   options:\n", fd);
  77 #if LATER
  78    fputs("      -V     print version information to stdout, and exit\n", fd);
  79 #endif
  80 #if WITH_HELP
  81    fputs("      -?|-h  print a help text describing command line options\n", fd);
  82 #endif
  83    fputs("      -c     print values of compile time C defines\n", fd);
  84 #if LATER
  85    fputs("      -d     increase verbosity (use up to 4 times; 2 are recommended)\n", fd);
  86 #endif
  87 #if 0
  88    fputs("      -ly[facility]  log to syslog, using facility (default is daemon)\n", fd);
  89    fputs("      -lf<logfile>   log to file\n", fd);
  90    fputs("      -ls            log to stderr (default if no other log)\n", fd);
  91 #endif
  92 #if 0
  93    fputs("      -n<fdnum>      first file descriptor number not analyzed\n", fd);
  94 #endif
  95 }
  96 #endif /* WITH_HELP */