Added '-F script' option to dump.

[dump.git] / dump / tape.c

diff --git a/dump/tape.c b/dump/tape.c
index 5a50ff95aaf66e814efad447026639090b8814e9..34779491504f6526e0eff171ebc73d0973ce28b1 100644 (file)
--- a/dump/tape.c
+++ b/dump/tape.c
@@ -40,7 +40,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-       "$Id: tape.c,v 1.14 2000/03/01 10:16:05 stelian Exp $";
+       "$Id: tape.c,v 1.15 2000/03/02 11:34:51 stelian Exp $";
 #endif /* not lint */
 
 #ifdef __linux__
@@ -73,6 +73,7 @@ static const char rcsid[] =
 #include <setjmp.h>
 #include <signal.h>
 #include <stdio.h>
+#include <compaterr.h>
 #ifdef __STDC__
 #include <stdlib.h>
 #include <string.h>
@@ -97,6 +98,7 @@ extern        int cartridge;
 extern char *host;
 char   *nexttape;
 extern  pid_t rshpid;
+int    eot_code = 1;
 
 static ssize_t atomic_read __P((int, void *, size_t));
 static ssize_t atomic_write __P((int, const void *, size_t));
@@ -402,7 +404,42 @@ flushtape(void)
        timeest();
 }
 
-void
+/*
+ * Executes the command in a shell.
+ * Returns -1 if an error occured, the exit status of
+ * the command on success.
+ */
+int system_command(const char *command) {
+       int pid, status;
+
+       pid = fork();
+       if (pid == -1) {
+               perror("  DUMP: unable to fork");
+               return -1;
+       }
+       if (pid == 0) {
+               setuid(getuid());
+               setgid(getgid());
+               execl("/bin/sh", "sh", "-c", command, NULL);
+               perror("  DUMP: unable to execute shell");
+               exit(-1);
+       }
+       do {
+               if (waitpid(pid, &status, 0) == -1) {
+                       if (errno != EINTR) {
+                               perror("  DUMP: waitpid error");
+                               return -1;
+                       }
+               } else {
+                       if (WIFEXITED(status))
+                               return WEXITSTATUS(status);
+                       else
+                               return -1;
+               }
+       } while(1);
+}
+
+time_t
 trewind(void)
 {
        int f;
@@ -435,32 +472,45 @@ trewind(void)
        while (wait((int *)NULL) >= 0)  /* wait for any signals from slaves */
                /* void */;
 
-       if (pipeout)
-               return;
+       if (!pipeout) {
 
-       msg("Closing %s\n", tape);
+               msg("Closing %s\n", tape);
 
 #ifdef RDUMP
-       if (host) {
-               rmtclose();
-               while (rmtopen(tape, 0) < 0)
-                       sleep(10);
-               rmtclose();
-               return;
-       }
+               if (host) {
+                       rmtclose();
+                       while (rmtopen(tape, 0) < 0)
+                               sleep(10);
+                       rmtclose();
+               }
+               else 
+#else
+               {
+                       (void) close(tapefd);
+                       while ((f = open(tape, 0)) < 0)
+                               sleep (10);
+                       (void) close(f);
+               }
 #endif
-       (void) close(tapefd);
-       while ((f = open(tape, 0)) < 0)
-               sleep (10);
-       (void) close(f);
+               eot_code = 1;
+               if (eot_script) {
+                       msg("Launching %s\n", eot_script);
+                       eot_code = system_command(eot_script);
+               }
+               if (eot_code != 0 && eot_code != 1) {
+                       msg("Dump aborted by the end of tape script\n");
+                       dumpabort(0);
+               }
+       }
+       return do_stats();
 }
 
+               
 void
 close_rewind(void)
 {
-       trewind();
-       (void)do_stats();
-       if (nexttape || Mflag)
+       (void)trewind();
+       if (nexttape || Mflag || (eot_code == 0) )
                return;
        if (!nogripe) {
                msg("Change Volumes: Mount volume #%d\n", tapeno+1);