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Add new function strlist_find.

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* common/strlist.h (strlist_find): New declaration.
* common/strlist.c (strlist_find): New function.

--
Signed-off-by: Neal H. Walfield <neal@g10code.de>
This commit is contained in:
Neal H. Walfield 2015-03-13 15:08:22 +01:00
parent b18ffcb81a
commit 79907ad256
2 changed files with 17 additions and 0 deletions
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14
common/strlist.c
View File

@ -1,5 +1,6 @@
/* strlist.c - string helpers /* strlist.c - string helpers
* Copyright (C) 1998, 2000, 2001, 2006 Free Software Foundation, Inc. * Copyright (C) 1998, 2000, 2001, 2006 Free Software Foundation, Inc.
* Copyright (C) 2015 g10 Code GmbH
* *
* This file is part of JNLIB, which is a subsystem of GnuPG. * This file is part of JNLIB, which is a subsystem of GnuPG.
* *
@ -212,3 +213,16 @@ strlist_pop (strlist_t *list)
return str; return str;
} }
/* Return the first element of the string list HAYSTACK whose string
matches NEEDLE. If no elements match, return NULL. */
strlist_t
strlist_find (strlist_t haystack, const char *needle)
{
for (;
haystack;
haystack = haystack->next)
if (strcmp (haystack->d, needle) == 0)
return haystack;
return NULL;
}

3
common/strlist.h
View File

@ -55,6 +55,9 @@ strlist_t strlist_prev (strlist_t head, strlist_t node);
strlist_t strlist_last (strlist_t node); strlist_t strlist_last (strlist_t node);
char * strlist_pop (strlist_t *list); char * strlist_pop (strlist_t *list);
strlist_t strlist_find (strlist_t haystack, const char *needle);
#define FREE_STRLIST(a) do { free_strlist((a)); (a) = NULL ; } while(0) #define FREE_STRLIST(a) do { free_strlist((a)); (a) = NULL ; } while(0)