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/* ckaliases - verify syntax of sendmail-style alias files
Copyright (C) 2005, 2007, 2013 Sergey Poznyakoff
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "alck.h"
char *
slist_add_n(SLIST **plist, char *str, size_t n)
{
struct string_list *p = emalloc(sizeof(*p));
p->str = emalloc(n);
memcpy(p->str, str, n);
p->len = n;
p->next = NULL;
if (!*plist) {
*plist = emalloc(sizeof(**plist));
(*plist)->head = NULL;
}
if ((*plist)->head == NULL) {
(*plist)->head = p;
(*plist)->count = 0;
} else {
(*plist)->tail->next = p;
(*plist)->count++;
}
(*plist)->tail = p;
return p->str;
}
char *
slist_add(SLIST **plist, char *str)
{
return slist_add_n(plist, str, strlen(str) + 1);
}
void
slist_append(SLIST **pdst, SLIST *src)
{
struct string_list *tail;
if (!*pdst) {
*pdst = emalloc(sizeof(**pdst));
(*pdst)->head = NULL;
(*pdst)->count = 0;
}
if ((*pdst)->head = NULL)
(*pdst)->head = src->head;
for (tail = src->tail; tail->next; tail = tail->next)
;
(*pdst)->tail = tail;
(*pdst)->count += src->count;
}
char *
slist_member(SLIST *plist, char *name)
{
struct string_list *p;
if (plist)
for (p = plist->head; p; p = p->next)
if (p->str && strcmp(p->str, name) == 0)
return p->str;
return NULL;
}
void
slist_destroy(SLIST **plist)
{
struct string_list *p;
if (!plist || !*plist)
return;
p = (*plist)->head;
while (p) {
struct string_list *next = p->next;
free(p);
p = next;
}
free(*plist);
*plist = NULL;
}
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