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authorLinus Torvalds2014-01-23 19:11:50 -0800
committerLinus Torvalds2014-01-23 19:11:50 -0800
commit3aacd625f20129f5a41ea3ff3b5353b0e4dabd01 (patch)
tree7cf4ea65397f80098b30494df31cfc8f5fa26d63 /lib/parser.c
parent7e21774db5cc9cf8fe93a64a2f0c6cf47db8ab24 (diff)
parent2a1d689c9ba42a6066540fb221b6ecbd6298b728 (diff)
Merge branch 'akpm' (incoming from Andrew)
Merge second patch-bomb from Andrew Morton: - various misc bits - the rest of MM - add generic fixmap.h, use it - backlight updates - dynamic_debug updates - printk() updates - checkpatch updates - binfmt_elf - ramfs - init/ - autofs4 - drivers/rtc - nilfs - hfsplus - Documentation/ - coredump - procfs - fork - exec - kexec - kdump - partitions - rapidio - rbtree - userns - memstick - w1 - decompressors * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (197 commits) lib/decompress_unlz4.c: always set an error return code on failures romfs: fix returm err while getting inode in fill_super drivers/w1/masters/w1-gpio.c: add strong pullup emulation drivers/memstick/host/rtsx_pci_ms.c: fix ms card data transfer bug userns: relax the posix_acl_valid() checks arch/sh/kernel/dwarf.c: use rbtree postorder iteration helper instead of solution using repeated rb_erase() fs-ext3-use-rbtree-postorder-iteration-helper-instead-of-opencoding-fix fs/ext3: use rbtree postorder iteration helper instead of opencoding fs/jffs2: use rbtree postorder iteration helper instead of opencoding fs/ext4: use rbtree postorder iteration helper instead of opencoding fs/ubifs: use rbtree postorder iteration helper instead of opencoding net/netfilter/ipset/ip_set_hash_netiface.c: use rbtree postorder iteration instead of opencoding rbtree/test: test rbtree_postorder_for_each_entry_safe() rbtree/test: move rb_node to the middle of the test struct rapidio: add modular rapidio core build into powerpc and mips branches partitions/efi: complete documentation of gpt kernel param purpose kdump: add /sys/kernel/vmcoreinfo ABI documentation kdump: fix exported size of vmcoreinfo note kexec: add sysctl to disable kexec_load fs/exec.c: call arch_pick_mmap_layout() only once ...
Diffstat (limited to 'lib/parser.c')
-rw-r--r--lib/parser.c62
1 files changed, 56 insertions, 6 deletions
diff --git a/lib/parser.c b/lib/parser.c
index 807b2aaa33fa..b6d11631231b 100644
--- a/lib/parser.c
+++ b/lib/parser.c
@@ -113,6 +113,7 @@ int match_token(char *s, const match_table_t table, substring_t args[])
return p->token;
}
+EXPORT_SYMBOL(match_token);
/**
* match_number: scan a number in the given base from a substring_t
@@ -163,6 +164,7 @@ int match_int(substring_t *s, int *result)
{
return match_number(s, result, 0);
}
+EXPORT_SYMBOL(match_int);
/**
* match_octal: - scan an octal representation of an integer from a substring_t
@@ -177,6 +179,7 @@ int match_octal(substring_t *s, int *result)
{
return match_number(s, result, 8);
}
+EXPORT_SYMBOL(match_octal);
/**
* match_hex: - scan a hex representation of an integer from a substring_t
@@ -191,6 +194,58 @@ int match_hex(substring_t *s, int *result)
{
return match_number(s, result, 16);
}
+EXPORT_SYMBOL(match_hex);
+
+/**
+ * match_wildcard: - parse if a string matches given wildcard pattern
+ * @pattern: wildcard pattern
+ * @str: the string to be parsed
+ *
+ * Description: Parse the string @str to check if matches wildcard
+ * pattern @pattern. The pattern may contain two type wildcardes:
+ * '*' - matches zero or more characters
+ * '?' - matches one character
+ * If it's matched, return true, else return false.
+ */
+bool match_wildcard(const char *pattern, const char *str)
+{
+ const char *s = str;
+ const char *p = pattern;
+ bool star = false;
+
+ while (*s) {
+ switch (*p) {
+ case '?':
+ s++;
+ p++;
+ break;
+ case '*':
+ star = true;
+ str = s;
+ if (!*++p)
+ return true;
+ pattern = p;
+ break;
+ default:
+ if (*s == *p) {
+ s++;
+ p++;
+ } else {
+ if (!star)
+ return false;
+ str++;
+ s = str;
+ p = pattern;
+ }
+ break;
+ }
+ }
+
+ if (*p == '*')
+ ++p;
+ return !*p;
+}
+EXPORT_SYMBOL(match_wildcard);
/**
* match_strlcpy: - Copy the characters from a substring_t to a sized buffer
@@ -213,6 +268,7 @@ size_t match_strlcpy(char *dest, const substring_t *src, size_t size)
}
return ret;
}
+EXPORT_SYMBOL(match_strlcpy);
/**
* match_strdup: - allocate a new string with the contents of a substring_t
@@ -230,10 +286,4 @@ char *match_strdup(const substring_t *s)
match_strlcpy(p, s, sz);
return p;
}
-
-EXPORT_SYMBOL(match_token);
-EXPORT_SYMBOL(match_int);
-EXPORT_SYMBOL(match_octal);
-EXPORT_SYMBOL(match_hex);
-EXPORT_SYMBOL(match_strlcpy);
EXPORT_SYMBOL(match_strdup);