vserver 1.9.5.x5

[linux-2.6.git] / scripts / kconfig / symbol.c

diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 16b48cf..affa52f 100644 (file)
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -6,6 +6,7 @@
 #include <ctype.h>
 #include <stdlib.h>
 #include <string.h>
+#include <regex.h>
 #include <sys/utsname.h>
 
 #define LKC_DIRECT_LINK
@@ -421,7 +422,7 @@ tristate sym_toggle_tristate_value(struct symbol *sym)
 
 bool sym_string_valid(struct symbol *sym, const char *str)
 {
-       char ch;
+       signed char ch;
 
        switch (sym->type) {
        case S_STRING:
@@ -656,6 +657,43 @@ struct symbol *sym_find(const char *name)
        return symbol;
 }
 
+struct symbol **sym_re_search(const char *pattern)
+{
+       struct symbol *sym, **sym_arr = NULL;
+       int i, cnt, size;
+       regex_t re;
+
+       cnt = size = 0;
+       /* Skip if empty */
+       if (strlen(pattern) == 0)
+               return NULL;
+       if (regcomp(&re, pattern, REG_EXTENDED|REG_NOSUB|REG_ICASE))
+               return NULL;
+
+       for_all_symbols(i, sym) {
+               if (sym->flags & SYMBOL_CONST || !sym->name)
+                       continue;
+               if (regexec(&re, sym->name, 0, NULL, 0))
+                       continue;
+               if (cnt + 1 >= size) {
+                       void *tmp = sym_arr;
+                       size += 16;
+                       sym_arr = realloc(sym_arr, size * sizeof(struct symbol *));
+                       if (!sym_arr) {
+                               free(tmp);
+                               return NULL;
+                       }
+               }
+               sym_arr[cnt++] = sym;
+       }
+       if (sym_arr)
+               sym_arr[cnt] = NULL;
+       regfree(&re);
+
+       return sym_arr;
+}
+
+
 struct symbol *sym_check_deps(struct symbol *sym);
 
 static struct symbol *sym_check_expr_deps(struct expr *e)