diff options
Diffstat (limited to 'crypto/heimdal/lib/roken/strcollect.c')
-rw-r--r-- | crypto/heimdal/lib/roken/strcollect.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/roken/strcollect.c b/crypto/heimdal/lib/roken/strcollect.c new file mode 100644 index 0000000..1e82ad0 --- /dev/null +++ b/crypto/heimdal/lib/roken/strcollect.c @@ -0,0 +1,96 @@ +/* + * 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 <config.h> +RCSID("$Id: strcollect.c,v 1.1 2000/01/09 10:57:43 assar Exp $"); +#endif + +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <roken.h> + +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; +} |