1*ebfedea0SLionel Sambuc /* $NetBSD: strcollect.c,v 1.1.1.1 2011/04/13 18:15:43 elric Exp $ */
2*ebfedea0SLionel Sambuc
3*ebfedea0SLionel Sambuc /*
4*ebfedea0SLionel Sambuc * Copyright (c) 1998, 1999 Kungliga Tekniska Högskolan
5*ebfedea0SLionel Sambuc * (Royal Institute of Technology, Stockholm, Sweden).
6*ebfedea0SLionel Sambuc * All rights reserved.
7*ebfedea0SLionel Sambuc *
8*ebfedea0SLionel Sambuc * Redistribution and use in source and binary forms, with or without
9*ebfedea0SLionel Sambuc * modification, are permitted provided that the following conditions
10*ebfedea0SLionel Sambuc * are met:
11*ebfedea0SLionel Sambuc *
12*ebfedea0SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
13*ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer.
14*ebfedea0SLionel Sambuc *
15*ebfedea0SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
16*ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer in the
17*ebfedea0SLionel Sambuc * documentation and/or other materials provided with the distribution.
18*ebfedea0SLionel Sambuc *
19*ebfedea0SLionel Sambuc * 3. Neither the name of the Institute nor the names of its contributors
20*ebfedea0SLionel Sambuc * may be used to endorse or promote products derived from this software
21*ebfedea0SLionel Sambuc * without specific prior written permission.
22*ebfedea0SLionel Sambuc *
23*ebfedea0SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24*ebfedea0SLionel Sambuc * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25*ebfedea0SLionel Sambuc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26*ebfedea0SLionel Sambuc * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27*ebfedea0SLionel Sambuc * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28*ebfedea0SLionel Sambuc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29*ebfedea0SLionel Sambuc * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30*ebfedea0SLionel Sambuc * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31*ebfedea0SLionel Sambuc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32*ebfedea0SLionel Sambuc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33*ebfedea0SLionel Sambuc * SUCH DAMAGE.
34*ebfedea0SLionel Sambuc */
35*ebfedea0SLionel Sambuc
36*ebfedea0SLionel Sambuc #include <config.h>
37*ebfedea0SLionel Sambuc
38*ebfedea0SLionel Sambuc #include <stdarg.h>
39*ebfedea0SLionel Sambuc #include <stdlib.h>
40*ebfedea0SLionel Sambuc #include <string.h>
41*ebfedea0SLionel Sambuc #include <errno.h>
42*ebfedea0SLionel Sambuc #include <krb5/roken.h>
43*ebfedea0SLionel Sambuc
44*ebfedea0SLionel Sambuc enum { initial = 10, increment = 5 };
45*ebfedea0SLionel Sambuc
46*ebfedea0SLionel Sambuc static char **
sub(char ** argv,int i,int argc,va_list * ap)47*ebfedea0SLionel Sambuc sub (char **argv, int i, int argc, va_list *ap)
48*ebfedea0SLionel Sambuc {
49*ebfedea0SLionel Sambuc do {
50*ebfedea0SLionel Sambuc if(i == argc) {
51*ebfedea0SLionel Sambuc /* realloc argv */
52*ebfedea0SLionel Sambuc char **tmp = realloc(argv, (argc + increment) * sizeof(*argv));
53*ebfedea0SLionel Sambuc if(tmp == NULL) {
54*ebfedea0SLionel Sambuc free(argv);
55*ebfedea0SLionel Sambuc errno = ENOMEM;
56*ebfedea0SLionel Sambuc return NULL;
57*ebfedea0SLionel Sambuc }
58*ebfedea0SLionel Sambuc argv = tmp;
59*ebfedea0SLionel Sambuc argc += increment;
60*ebfedea0SLionel Sambuc }
61*ebfedea0SLionel Sambuc argv[i++] = va_arg(*ap, char*);
62*ebfedea0SLionel Sambuc } while(argv[i - 1] != NULL);
63*ebfedea0SLionel Sambuc return argv;
64*ebfedea0SLionel Sambuc }
65*ebfedea0SLionel Sambuc
66*ebfedea0SLionel Sambuc /*
67*ebfedea0SLionel Sambuc * return a malloced vector of pointers to the strings in `ap'
68*ebfedea0SLionel Sambuc * terminated by NULL.
69*ebfedea0SLionel Sambuc */
70*ebfedea0SLionel Sambuc
71*ebfedea0SLionel Sambuc ROKEN_LIB_FUNCTION char ** ROKEN_LIB_CALL
vstrcollect(va_list * ap)72*ebfedea0SLionel Sambuc vstrcollect(va_list *ap)
73*ebfedea0SLionel Sambuc {
74*ebfedea0SLionel Sambuc return sub (NULL, 0, 0, ap);
75*ebfedea0SLionel Sambuc }
76*ebfedea0SLionel Sambuc
77*ebfedea0SLionel Sambuc /*
78*ebfedea0SLionel Sambuc *
79*ebfedea0SLionel Sambuc */
80*ebfedea0SLionel Sambuc
81*ebfedea0SLionel Sambuc ROKEN_LIB_FUNCTION char ** ROKEN_LIB_CALL
strcollect(char * first,...)82*ebfedea0SLionel Sambuc strcollect(char *first, ...)
83*ebfedea0SLionel Sambuc {
84*ebfedea0SLionel Sambuc va_list ap;
85*ebfedea0SLionel Sambuc char **ret = malloc (initial * sizeof(char *));
86*ebfedea0SLionel Sambuc
87*ebfedea0SLionel Sambuc if (ret == NULL)
88*ebfedea0SLionel Sambuc return ret;
89*ebfedea0SLionel Sambuc
90*ebfedea0SLionel Sambuc ret[0] = first;
91*ebfedea0SLionel Sambuc va_start(ap, first);
92*ebfedea0SLionel Sambuc ret = sub (ret, 1, initial, &ap);
93*ebfedea0SLionel Sambuc va_end(ap);
94*ebfedea0SLionel Sambuc return ret;
95*ebfedea0SLionel Sambuc }
96