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/*
* Command line arguments parsing helpers
*
* Copyright (C) 2020-2023 Red Hat, Inc. All rights reserved.
* Copyright (C) 2020-2023 Ondrej Kozina
*
* 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
* of the License, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "cryptsetup.h"
void tools_parse_arg_value(poptContext popt_context, crypt_arg_type_info type, struct tools_arg *arg, const char *popt_arg, int popt_val, bool(*needs_size_conv_fn)(unsigned arg_id))
{
char *end, msg[128];
long long int ll;
long long unsigned int ull;
errno = 0;
switch (type) {
case CRYPT_ARG_BOOL:
break;
case CRYPT_ARG_STRING:
if (arg->set)
free(arg->u.str_value);
arg->u.str_value = poptGetOptArg(popt_context);
break;
case CRYPT_ARG_INT32:
ll = strtoll(popt_arg, &end, 10);
if (*end || !*popt_arg || ll > INT32_MAX || ll < INT32_MIN || errno == ERANGE)
usage(popt_context, EXIT_FAILURE, poptStrerror(POPT_ERROR_BADNUMBER),
poptGetInvocationName(popt_context));
arg->u.i32_value = (int32_t)ll;
break;
case CRYPT_ARG_UINT32:
ull = strtoull(popt_arg, &end, 10);
if (*end || !*popt_arg || ull > UINT32_MAX || errno == ERANGE)
usage(popt_context, EXIT_FAILURE, poptStrerror(POPT_ERROR_BADNUMBER),
poptGetInvocationName(popt_context));
arg->u.u32_value = (uint32_t)ull;
break;
case CRYPT_ARG_INT64:
ll = strtoll(popt_arg, &end, 10);
if (*end || !*popt_arg || errno == ERANGE)
usage(popt_context, EXIT_FAILURE, poptStrerror(POPT_ERROR_BADNUMBER),
poptGetInvocationName(popt_context));
arg->u.i64_value = ll;
break;
case CRYPT_ARG_UINT64:
/* special size strings with units converted to integers */
if (needs_size_conv_fn && needs_size_conv_fn(popt_val)) {
if (tools_string_to_size(popt_arg, &arg->u.u64_value)) {
if (snprintf(msg, sizeof(msg), _("Invalid size specification in parameter --%s."), arg->name) < 0)
msg[0] = '\0';
usage(popt_context, EXIT_FAILURE, msg,
poptGetInvocationName(popt_context));
}
} else {
ull = strtoull(popt_arg, &end, 10);
if (*end || !*popt_arg || errno == ERANGE)
usage(popt_context, EXIT_FAILURE, poptStrerror(POPT_ERROR_BADNUMBER),
poptGetInvocationName(popt_context));
arg->u.u64_value = ull;
}
break;
case CRYPT_ARG_ALIAS:
tools_parse_arg_value(popt_context, arg->u.o.ptr->type, arg->u.o.ptr, popt_arg, arg->u.o.id, needs_size_conv_fn);
break;
default:
/* this signals internal tools coding mistake */
abort();
}
arg->set = true;
}
void tools_args_free(struct tools_arg *args, size_t args_size)
{
size_t i;
for (i = 0; i < args_size; i++) {
if (args[i].set && args[i].type == CRYPT_ARG_STRING)
free(args[i].u.str_value);
args[i].set = false;
}
}
static bool action_allowed(const char *action, const char * const* list, size_t list_size)
{
size_t i;
if (!list[0])
return true;
for (i = 0; i < list_size && list[i]; i++) {
if (!strcmp(action, list[i]))
return true;
}
return false;
}
void tools_check_args(const char *action, const struct tools_arg *args, size_t args_size, poptContext popt_context)
{
size_t i;
char msg[256];
for (i = 1; i < args_size; i++) {
if (args[i].set) {
if (action_allowed(action, args[i].actions_array, MAX_ACTIONS)) {
continue;
} else {
if (snprintf(msg, sizeof(msg), _("Option --%s is not allowed with %s action."), args[i].name, action) < 0)
msg[0] = '\0';
usage(popt_context, EXIT_FAILURE, msg, poptGetInvocationName(popt_context));
}
}
}
}
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