mhshow: suppress error for undisplayable parts, if they're not wanted

[nmh] / sbr / pidstatus.c

diff --git a/sbr/pidstatus.c b/sbr/pidstatus.c
index aa664649a887a5fc901523b8fd45c3c70fff4690..1c1f734896455c19efe4f827a5a2d3b16e72001d 100644 (file)
--- a/sbr/pidstatus.c
+++ b/sbr/pidstatus.c
@@ -2,7 +2,9 @@
 /*
  * pidstatus.c -- report child's status
  *
- * $Id$
+ * This code is Copyright (c) 2002, by the authors of nmh.  See the
+ * COPYRIGHT file in the root directory of the nmh distribution for
+ * complete copyright information.
  */
 
 #include <h/mh.h>
@@ -12,10 +14,6 @@
  */
 #include <sigmsg.h>
 
-#ifdef HAVE_SYS_WAIT_H
-# include <sys/wait.h>
-#endif
-
 #ifndef WTERMSIG
 # define WTERMSIG(s) ((int)((s) & 0x7F))
 #endif
@@ -24,6 +22,14 @@
 # define WCOREDUMP(s) ((s) & 0x80)
 #endif
 
+/*
+ * Return 0 if the command exited with an exit code of zero, a nonzero code
+ * otherwise.
+ *
+ * Print out an appropriate status message we didn't exit with an exit code
+ * of zero.
+ */
+
 int
 pidstatus (int status, FILE *fp, char *cp)
 {
@@ -44,6 +50,7 @@ pidstatus (int status, FILE *fp, char *cp)
                fprintf (fp, "%s: ", cp);
            fprintf (fp, "exit %d\n", signum);
        }
+       return signum;
     } else if (WIFSIGNALED(status)) {
        /* If child process terminated due to receipt of a signal */
        signum = WTERMSIG(status);
@@ -51,7 +58,8 @@ pidstatus (int status, FILE *fp, char *cp)
            if (cp)
                fprintf (fp, "%s: ", cp);
            fprintf (fp, "signal %d", signum);
-           if (signum >= 0 && signum < sizeof(sigmsg) && sigmsg[signum] != NULL)
+           if (signum >= 0 && signum < (int) sizeof(sigmsg) &&
+                  sigmsg[signum] != NULL)
                fprintf (fp, " (%s%s)\n", sigmsg[signum],
                         WCOREDUMP(status) ? ", core dumped" : "");
            else