Improve code for recognising config lines.

[thirdparty/mdadm.git] / mdadm.c

diff --git a/mdadm.c b/mdadm.c
index 7f109486a10d91c23c85f06b9c2d1fe5a1076711..902d401fbc9d1b5b0ea2883b3d142a88a4248468 100644 (file)
--- a/mdadm.c
+++ b/mdadm.c
@@ -1,7 +1,7 @@
 /*
  * mdadm - manage Linux "md" devices aka RAID arrays.
  *
- * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -75,14 +75,17 @@ int main(int argc, char *argv[])
        int force = 0;
        int test = 0;
        int assume_clean = 0;
-       int autof = 0; /* -2 means create device based on name:
-                       *    if it ends mdN, then non-partitioned array N
-                       *    if it ends dN, then partitions array N
-                       * -1 means create non-partitioned, choose N
-                       *  1 or more to create partitioned
-                       * If -1 or 1 and name is a 'standard' name, then
-                       * insist on a match of type and number.
-                       */
+       /* autof indicates whether and how to create device node.
+        * bottom 3 bits are style.  Rest (when shifted) are number of parts
+        * 0  - unset
+        * 1  - don't create (no)
+        * 2  - if is_standard, then create (yes)
+        * 3  - create as 'md' - reject is_standard mdp (md)
+        * 4  - create as 'mdp' - reject is_standard md (mdp)
+        * 5  - default to md if not is_standard (md in config file)
+        * 6  - default to mdp if not is_standard (part, or mdp in config file)
+        */
+       int autof = 0;
 
        char *mailaddr = NULL;
        char *program = NULL;
@@ -482,39 +485,7 @@ int main(int argc, char *argv[])
                case O(CREATE,'a'):
                case O(BUILD,'a'):
                case O(ASSEMBLE,'a'): /* auto-creation of device node */
-                       if (optarg == NULL)
-                               autof = -2;
-                       else if (strcasecmp(optarg,"no")==0)
-                               autof = 0;
-                       else if (strcasecmp(optarg,"yes")==0)
-                               autof = -2;
-                       else if (strcasecmp(optarg,"md")==0)
-                               autof = -1;
-                       else {
-                               /* There might be digits, and maybe a hypen, at the end */
-                               char *e = optarg + strlen(optarg);
-                               int num = 4;
-                               int len;
-                               while (e > optarg && isdigit(e[-1]))
-                                       e--;
-                               if (*e) {
-                                       num = atoi(e);
-                                       if (num <= 0) num = 1;
-                               }
-                               if (e > optarg && e[-1] == '-')
-                                       e--;
-                               len = e - optarg;
-                               if ((len == 3 && strncasecmp(optarg,"mdp",3)==0) ||
-                                   (len == 1 && strncasecmp(optarg,"p",1)==0) ||
-                                   (len >= 4 && strncasecmp(optarg,"part",4)==0))
-                                       autof = num;
-                               else {
-                                       fprintf(stderr, Name ": --auto flag arg of \"%s\" unrecognised: use no,yes,md,mdp,part\n"
-                                               "        optionally followed by a number.\n",
-                                               optarg);
-                                       exit(2);
-                               }
-                       }
+                       autof = parse_auto(optarg, "--auto flag", 0);
                        continue;
 
                case O(BUILD,'f'): /* force honouring '-n 1' */
@@ -606,6 +577,10 @@ int main(int argc, char *argv[])
                        fprintf(stderr, Name ": '--update %s' invalid.  Only 'sparc2.2', 'super-minor', 'uuid', 'resync' or 'summaries' supported\n",update);
                        exit(2);
 
+               case O(ASSEMBLE,4): /* --no-degraded */
+                       runstop = -1; /* --stop isn't allowed for --assemble, so we overload slightly */
+                       continue;
+
                case O(ASSEMBLE,'c'): /* config file */
                case O(MISC, 'c'):
                case O(MONITOR,'c'):