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argv.c
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argv.c
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/*
* access -- authenticator for Unix systems.
*
* access is copyrighted:
* Copyright (C) 2014-2018 Andrey Rys. All rights reserved.
*
* access is licensed to you under the terms of std. MIT/X11 license:
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "access.h"
/*
* Refine a single passed argument into multiple ones.
* - Copy args before argv+idx,
* - Break single arg into multiple ones further down,
* - Copy remainings after it.
* This one does not parses special strings, it just breaks
* up anything which contains space.
*/
void refine_argv(int *argc, char ***argv, int idx)
{
char **tpp, *s, *d, *t;
int x, xidx = idx;
tpp = acs_malloc(sizeof(char *));
for (x = 0; x < xidx; x++) {
tpp = acs_realloc(tpp, sizeof(char *) * (x+2));
tpp[x] = *(*(argv)+x);
}
s = d = *(*(argv)+xidx); t = NULL;
while ((s = acs_strtok_r(d, " ", &t))) {
if (d) d = NULL;
tpp = acs_realloc(tpp, sizeof(char *) * (x+2));
tpp[x] = s;
x++;
}
tpp[x] = NULL;
xidx++;
while (*(*(argv)+xidx)) {
tpp = acs_realloc(tpp, sizeof(char *) * (x+2));
tpp[x] = *(*(argv)+xidx);
x++; xidx++;
}
tpp[x] = NULL;
*argc = x;
*argv = tpp;
}
void destroy_argv(char ***argv)
{
size_t sz, x;
char **uargv = *argv;
sz = DYN_ARRAY_SZ(uargv);
for (x = 0; x < sz; x++)
pfree(*(uargv+x));
acs_free(uargv); *argv = NULL;
}