Refuse incompatible options in dump (-a and -B).

[dump.git] / dump / main.c

diff --git a/dump/main.c b/dump/main.c
index 8fcf468d7b0851259628e1bb2e8f81f53c776f37..8f33f95e23847b16977f6776af732f82bb3711a7 100644 (file)
--- a/dump/main.c
+++ b/dump/main.c
@@ -41,7 +41,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-       "$Id: main.c,v 1.57 2001/08/16 09:37:59 stelian Exp $";
+       "$Id: main.c,v 1.58 2001/08/16 13:12:30 stelian Exp $";
 #endif /* not lint */
 
 #include <config.h>
@@ -178,6 +178,7 @@ static void obsolete __P((int *, char **[]));
 static void usage __P((void));
 static void do_exclude_from_file __P((char *));
 static void do_exclude_ino_str __P((char *));
+static void incompat_flags __P((int, char, char));
 
 static dump_ino_t iexclude_list[IEXCLUDE_MAXNUM];/* the inode exclude list */
 static int iexclude_num = 0;                   /* number of elements in the list */
@@ -191,7 +192,8 @@ main(int argc, char *argv[])
        register struct fstab *dt;
        register char *map;
        register int ch;
-       int i, anydirskipped, bflag = 0, Tflag = 0, honorlevel = 1;
+       int i, anydirskipped;
+       int aflag = 0, bflag = 0, Tflag = 0, honorlevel = 1;
        dump_ino_t maxino;
        struct STAT statbuf;
        dev_t filedev = 0;
@@ -254,6 +256,7 @@ main(int argc, char *argv[])
 
                case 'a':               /* `auto-size', Write to EOM. */
                        unlimited = 1;
+                       aflag = 1;
                        break;
 
                case 'B':               /* blocks per output file */
@@ -411,11 +414,12 @@ main(int argc, char *argv[])
                exit(X_STARTUP);
        }
        argc--;
-       if (Tflag && uflag) {
-               msg("You cannot use the T and u flags together.\n");
-               msg("The ENTIRE dump is aborted.\n");
-               exit(X_STARTUP);
-       }
+       incompat_flags(Tflag && uflag, 'T', 'u');
+       incompat_flags(aflag && blocksperfile, 'a', 'B');
+       incompat_flags(aflag && cartridge, 'a', 'c');
+       incompat_flags(aflag && density, 'a', 'd');
+       incompat_flags(aflag && tsize, 'a', 's');
+
        if (strcmp(tapeprefix, "-") == 0) {
                pipeout++;
                tapeprefix = "standard output";
@@ -1184,3 +1188,12 @@ do_exclude_from_file(char *file) {
        }
        fclose(f);
 }
+
+static void incompat_flags(int cond, char flag1, char flag2) {
+       if (cond) {
+               msg("You cannot use the %c and %c flags together.\n", 
+                   flag1, flag2);
+               msg("The ENTIRE dump is aborted.\n");
+               exit(X_STARTUP);
+       }
+}