diff options
Diffstat (limited to 'usr/src/cmd/mandoc/compat_stringlist.c')
| -rw-r--r-- | usr/src/cmd/mandoc/compat_stringlist.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/usr/src/cmd/mandoc/compat_stringlist.c b/usr/src/cmd/mandoc/compat_stringlist.c new file mode 100644 index 0000000000..fb8e56aeba --- /dev/null +++ b/usr/src/cmd/mandoc/compat_stringlist.c @@ -0,0 +1,135 @@ +/* $Id: compat_stringlist.c,v 1.8 2020/06/15 21:48:09 schwarze Exp $ */ +/* $NetBSD: stringlist.c,v 1.14 2015/05/21 01:29:13 christos Exp $ */ + +/*- + * Copyright (c) 1994, 1999 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Christos Zoulas. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#include "config.h" + +#include <stdlib.h> +#include <string.h> +#include "compat_stringlist.h" + +#define _SL_CHUNKSIZE 20 + +/* + * sl_init(): Initialize a string list + */ +StringList * +sl_init(void) +{ + StringList *sl; + + sl = malloc(sizeof(StringList)); + if (sl == NULL) + return NULL; + + sl->sl_cur = 0; + sl->sl_max = _SL_CHUNKSIZE; + sl->sl_str = reallocarray(NULL, sl->sl_max, sizeof(char *)); + if (sl->sl_str == NULL) { + free(sl); + sl = NULL; + } + return sl; +} + + +/* + * sl_add(): Add an item to the string list + */ +int +sl_add(StringList *sl, char *name) +{ + if (sl->sl_cur == sl->sl_max - 1) { + char **new; + + new = reallocarray(sl->sl_str, (sl->sl_max + _SL_CHUNKSIZE), + sizeof(char *)); + if (new == NULL) + return -1; + sl->sl_max += _SL_CHUNKSIZE; + sl->sl_str = new; + } + sl->sl_str[sl->sl_cur++] = name; + return 0; +} + + +/* + * sl_free(): Free a stringlist + */ +void +sl_free(StringList *sl, int all) +{ + size_t i; + + if (sl == NULL) + return; + if (sl->sl_str) { + if (all) + for (i = 0; i < sl->sl_cur; i++) + free(sl->sl_str[i]); + free(sl->sl_str); + } + free(sl); +} + + +/* + * sl_find(): Find a name in the string list + */ +char * +sl_find(StringList *sl, const char *name) +{ + size_t i; + + for (i = 0; i < sl->sl_cur; i++) + if (strcmp(sl->sl_str[i], name) == 0) + return sl->sl_str[i]; + + return NULL; +} + +int +sl_delete(StringList *sl, const char *name, int all) +{ + size_t i, j; + + for (i = 0; i < sl->sl_cur; i++) + if (strcmp(sl->sl_str[i], name) == 0) { + if (all) + free(sl->sl_str[i]); + for (j = i + 1; j < sl->sl_cur; j++) + sl->sl_str[j - 1] = sl->sl_str[j]; + sl->sl_str[--sl->sl_cur] = NULL; + return 0; + } + return -1; +} + |