/* * Copyright (c) 1998, 1999 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * 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. * * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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. */ #ifdef HAVE_CONFIG_H #include RCSID("$Id: strcollect.c,v 1.1.8.1 2000/06/23 04:37:44 assar Exp $"); #endif #include #include #include #include #include enum { initial = 10, increment = 5 }; static char ** sub (char **argv, int i, int argc, va_list *ap) { do { if(i == argc) { /* realloc argv */ char **tmp = realloc(argv, (argc + increment) * sizeof(*argv)); if(tmp == NULL) { free(argv); errno = ENOMEM; return NULL; } argv = tmp; argc += increment; } argv[i++] = va_arg(*ap, char*); } while(argv[i - 1] != NULL); return argv; } /* * return a malloced vector of pointers to the strings in `ap' * terminated by NULL. */ char ** vstrcollect(va_list *ap) { return sub (NULL, 0, 0, ap); } /* * */ char ** strcollect(char *first, ...) { va_list ap; char **ret = malloc (initial * sizeof(char *)); if (ret == NULL) return ret; ret[0] = first; va_start(ap, first); ret = sub (ret, 1, initial, &ap); va_end(ap); return ret; }