diff options
Diffstat (limited to 'string/argz-create.c')
-rw-r--r-- | string/argz-create.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/string/argz-create.c b/string/argz-create.c new file mode 100644 index 0000000000..fab3222cb3 --- /dev/null +++ b/string/argz-create.c @@ -0,0 +1,53 @@ +/* Routines for dealing with '\0' separated arg vectors. + + Copyright (C) 1995, 1996 Free Software Foundation, Inc. + + Written by Miles Bader <miles@gnu.ai.mit.edu> + + 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 2, 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include <argz.h> +#include <stdlib.h> +#include <string.h> + +/* Make a '\0' separated arg vector from a unix argv vector, returning it in + ARGZ, and the total length in LEN. If a memory allocation error occurs, + ENOMEM is returned, otherwise 0. */ +error_t +__argz_create (char **argv, char **argz, size_t *len) +{ + int argc; + size_t tlen = 0; + char *p, **ap; + + for (argc = 0; argv[argc] != NULL; ++argc) + tlen += strlen (argv[argc]); + + if (tlen == 0) + *argz = NULL; + else + { + *argz = malloc(tlen); + if (*argz == NULL) + return ENOMEM; + + for (p = *argz, ap = argv; *ap; ++ap, ++p) + p = __stpcpy (p, *ap); + } + *len = tlen; + + return 0; +} +weak_alias (__argz_create, argz_create) |