Save ext2 volume label into the dump label.

[dump.git] / dump / main.c

diff --git a/dump/main.c b/dump/main.c
index 61afed803398fa5e486422f35a03e80949013399..876ea22e6d6b4cdee8793434901e83ad83c75667 100644 (file)
--- a/dump/main.c
+++ b/dump/main.c
@@ -40,7 +40,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-       "$Id: main.c,v 1.27 2000/11/10 13:22:10 stelian Exp $";
+       "$Id: main.c,v 1.28 2000/11/10 13:52:43 stelian Exp $";
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -126,9 +126,9 @@ main(int argc, char *argv[])
        char pathname[MAXPATHLEN];
 #endif
        time_t tnow;
-       char labelstr[LBLSIZE];
        char *diskparam;
 
+       spcl.c_label[0] = '\0';
        spcl.c_date = 0;
 #ifdef __linux__
        (void)time4(&spcl.c_date);
@@ -148,7 +148,6 @@ main(int argc, char *argv[])
        if ((tapeprefix = getenv("TAPE")) == NULL)
                tapeprefix = _PATH_DEFTAPE;
        dumpdates = _PATH_DUMPDATES;
-       strcpy(labelstr, "none");       /* XXX safe strcpy. */
        if (TP_BSIZE / DEV_BSIZE == 0 || TP_BSIZE % DEV_BSIZE != 0)
                quit("TP_BSIZE must be a multiple of DEV_BSIZE\n");
        level = '0';
@@ -243,14 +242,14 @@ main(int argc, char *argv[])
                         * the last must be '\0', so the limit on strlen()
                         * is really LBLSIZE-1.
                         */
-                       strncpy(labelstr, optarg, LBLSIZE);
-                       labelstr[LBLSIZE-1] = '\0';
+                       strncpy(spcl.c_label, optarg, LBLSIZE);
+                       spcl.c_label[LBLSIZE-1] = '\0';
                        if (strlen(optarg) > LBLSIZE-1) {
                                msg(
                "WARNING Label `%s' is larger than limit of %d characters.\n",
                                    optarg, LBLSIZE-1);
                                msg("WARNING: Using truncated label `%s'.\n",
-                                   labelstr);
+                                   spcl.c_label);
                        }
                        break;
 
@@ -390,7 +389,7 @@ main(int argc, char *argv[])
         *      fstabsearch.
         */
        if (strlen(disk) > 1 && disk[strlen(disk) - 1] == '/')
-         disk[strlen(disk) - 1] = '\0';
+               disk[strlen(disk) - 1] = '\0';
        /*
         *      disk can be either the full special file name,
         *      the suffix of the special file name,
@@ -401,8 +400,8 @@ main(int argc, char *argv[])
                disk = rawname(dt->fs_spec);
                (void)strncpy(spcl.c_dev, dt->fs_spec, NAMELEN);
                (void)strncpy(spcl.c_filesys, dt->fs_file, NAMELEN);
-#ifdef __linux__
        } else {
+#ifdef __linux__
 #ifdef HAVE_REALPATH
                if (realpath(disk, pathname) == NULL)
 #endif
@@ -434,14 +433,12 @@ main(int argc, char *argv[])
                                    NAMELEN);
                        }
                }
-       }
 #else
-       } else {
                (void)strncpy(spcl.c_dev, disk, NAMELEN);
                (void)strncpy(spcl.c_filesys, "an unlisted file system",
                    NAMELEN);
-       }
 #endif
+       }
 
        if (directory[0] != 0) {
                if (level != '0') {
@@ -453,10 +450,10 @@ main(int argc, char *argv[])
                        exit(X_STARTUP);
                }
        }
-       spcl.c_dev[NAMELEN-1]='\0';
-       spcl.c_filesys[NAMELEN-1]='\0';
-       (void)strncpy(spcl.c_label, labelstr, sizeof(spcl.c_label) - 1);
+       spcl.c_dev[NAMELEN-1] = '\0';
+       spcl.c_filesys[NAMELEN-1] = '\0';
        (void)gethostname(spcl.c_host, NAMELEN);
+       spcl.c_host[NAMELEN-1] = '\0';
        spcl.c_level = level - '0';
        spcl.c_type = TS_TAPE;
        if (!Tflag)
@@ -494,8 +491,6 @@ main(int argc, char *argv[])
                        msgtail("to %s on host %s\n", tape, host);
                else
                        msgtail("to %s\n", tape);
-               msg("Label: %s\n", labelstr);
-
        } /* end of size estimate */
 
 #ifdef __linux__
@@ -515,6 +510,15 @@ main(int argc, char *argv[])
                msg("Cannot open %s\n", disk);
                exit(X_STARTUP);
        }
+       /* if no user label specified, use ext2 filesystem label if available */
+       if (spcl.c_label[0] == '\0') {
+               if (fs->super->s_volume_name[0] != '\0') {
+                       strncpy(spcl.c_label, fs->super->s_volume_name,LBLSIZE);
+                       spcl.c_label[LBLSIZE-1] = '\0';
+               }
+               else
+                       strcpy(spcl.c_label, "none");   /* safe strcpy. */
+       }
        sync();
        dev_bsize = DEV_BSIZE;
        dev_bshift = ffs(dev_bsize) - 1;
@@ -554,10 +558,14 @@ main(int argc, char *argv[])
        usedinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
        dumpdirmap = (char *)calloc((unsigned) mapsize, sizeof(char));
        dumpinomap = (char *)calloc((unsigned) mapsize, sizeof(char));
+       if (usedinomap == NULL || dumpdirmap == NULL || dumpinomap == NULL)
+               quit("out of memory allocating inode maps\n");
        tapesize = 2 * (howmany(mapsize * sizeof(char), TP_BSIZE) + 1);
 
        nonodump = spcl.c_level < honorlevel;
 
+       msg("Label: %s\n", spcl.c_label);
+
 #if defined(SIGINFO)
        (void)signal(SIGINFO, statussig);
 #endif