diplodocus.org Git - nmh/blob - sbr/pidstatus.c

   1
   2 /*
   3  * pidstatus.c -- report child's status
   4  *
   5  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   6  * COPYRIGHT file in the root directory of the nmh distribution for
   7  * complete copyright information.
   8  */
   9
  10 #include <h/mh.h>
  11
  12 /*
  13  * auto-generated header
  14  */
  15 #include <sigmsg.h>
  16
  17 #ifndef WTERMSIG
  18 # define WTERMSIG(s) ((int)((s) & 0x7F))
  19 #endif
  20
  21 #ifndef WCOREDUMP
  22 # define WCOREDUMP(s) ((s) & 0x80)
  23 #endif
  24
  25 /*
  26  * Return 0 if the command exited with an exit code of zero, a nonzero code
  27  * otherwise.
  28  *
  29  * Print out an appropriate status message we didn't exit with an exit code
  30  * of zero.
  31  */
  32
  33 int
  34 pidstatus (int status, FILE *fp, char *cp)
  35 {
  36     int signum;
  37
  38 /*
  39  * I have no idea what this is for (rc)
  40  * so I'm commenting it out for right now.
  41  *
  42  *  if ((status & 0xff00) == 0xff00)
  43  *      return status;
  44  */
  45
  46     /* If child process returned normally */
  47     if (WIFEXITED(status)) {
  48         if ((signum = WEXITSTATUS(status))) {
  49             if (cp)
  50                 fprintf (fp, "%s: ", cp);
  51             fprintf (fp, "exit %d\n", signum);
  52         }
  53         return signum;
  54     } else if (WIFSIGNALED(status)) {
  55         /* If child process terminated due to receipt of a signal */
  56         signum = WTERMSIG(status);
  57         if (signum != SIGINT) {
  58             if (cp)
  59                 fprintf (fp, "%s: ", cp);
  60             fprintf (fp, "signal %d", signum);
  61             if (signum >= 0 && signum < (int) sizeof(sigmsg) &&
  62                   sigmsg[signum] != NULL)
  63                 fprintf (fp, " (%s%s)\n", sigmsg[signum],
  64                          WCOREDUMP(status) ? ", core dumped" : "");
  65             else
  66                 fprintf (fp, "%s\n", WCOREDUMP(status) ? " (core dumped)" : "");
  67         }
  68     }
  69
  70     return status;
  71 }