| bigbiff bigbiff | e60683a | 2013-02-22 20:55:50 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 Karel Zak <kzak@redhat.com> |
| 3 | * |
| 4 | * This file may be redistributed under the terms of the |
| 5 | * GNU Lesser General Public License. |
| 6 | */ |
| 7 | |
| 8 | #include <string.h> |
| 9 | |
| 10 | #include "match.h" |
| 11 | |
| 12 | /* |
| 13 | * match_fstype: |
| 14 | * @type: filesystem type |
| 15 | * @pattern: filesystem name or comma delimited list of names |
| 16 | * |
| 17 | * The @pattern list of filesystem can be prefixed with a global |
| 18 | * "no" prefix to invert matching of the whole list. The "no" could |
| 19 | * also be used for individual items in the @pattern list. So, |
| 20 | * "nofoo,bar" has the same meaning as "nofoo,nobar". |
| 21 | */ |
| 22 | int match_fstype(const char *type, const char *pattern) |
| 23 | { |
| 24 | int no = 0; /* negated types list */ |
| 25 | int len; |
| 26 | const char *p; |
| 27 | |
| 28 | if (!pattern && !type) |
| 29 | return 1; |
| 30 | if (!pattern) |
| 31 | return 0; |
| 32 | |
| 33 | if (!strncmp(pattern, "no", 2)) { |
| 34 | no = 1; |
| 35 | pattern += 2; |
| 36 | } |
| 37 | |
| 38 | /* Does type occur in types, separated by commas? */ |
| 39 | len = strlen(type); |
| 40 | p = pattern; |
| 41 | while(1) { |
| 42 | if (!strncmp(p, "no", 2) && !strncmp(p+2, type, len) && |
| 43 | (p[len+2] == 0 || p[len+2] == ',')) |
| 44 | return 0; |
| 45 | if (strncmp(p, type, len) == 0 && (p[len] == 0 || p[len] == ',')) |
| 46 | return !no; |
| 47 | p = strchr(p,','); |
| 48 | if (!p) |
| 49 | break; |
| 50 | p++; |
| 51 | } |
| 52 | return no; |
| 53 | } |