Made -Q option work on regular files.

[dump.git] / dump / main.c

diff --git a/dump/main.c b/dump/main.c
index c76f9ae693237eaf7bbe01a99bb6d74ef467c27d..a64ad67c0fcc67e0f6a7a8036073458b1010744f 100644 (file)
--- a/dump/main.c
+++ b/dump/main.c
@@ -41,7 +41,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-       "$Id: main.c,v 1.65 2002/01/16 09:32:14 stelian Exp $";
+       "$Id: main.c,v 1.66 2002/01/22 11:12:28 stelian Exp $";
 #endif /* not lint */
 
 #include <config.h>
@@ -470,6 +470,13 @@ main(int argc, char *argv[])
                tapeprefix = strchr(host, ':');
                *tapeprefix++ = '\0';
 #ifdef RDUMP
+#ifdef USE_QFA
+               if (tapepos) {
+                       msg("Cannot use -Q option on remote media\n");
+                       msg("The ENTIRE dump is aborted.\n");
+                       exit(X_STARTUP);
+               }
+#endif
                if (index(tapeprefix, '\n')) {
                        msg("invalid characters in tape\n");
                        msg("The ENTIRE dump is aborted.\n");
@@ -846,10 +853,11 @@ main(int argc, char *argv[])
 #ifdef USE_QFA
        if (tapepos) {
                msg("writing QFA positions to %s\n", gTapeposfile);
-               if ((gTapeposfd = open(gTapeposfile, O_RDWR|O_CREAT, S_IRUSR | S_IWUSR)) < 0)
+               if ((gTapeposfd = open(gTapeposfile, O_RDWR|O_CREAT|O_TRUNC, S_IRUSR | S_IWUSR)) < 0)
                        quit("can't open tapeposfile\n");
                /* print QFA-file header */
-               sprintf(gTps, "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
+               snprintf(gTps, sizeof(gTps), "%s\n%s\n%ld\n\n", QFA_MAGIC, QFA_VERSION, (unsigned long)spcl.c_date);
+               gTps[sizeof(gTps) - 1] = '\0';
                if (write(gTapeposfd, gTps, strlen(gTps)) != strlen(gTps))
                        quit("can't write tapeposfile\n");
                sprintf(gTps, "ino\ttapeno\ttapepos\n");