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/*
* Copyright (C) 2002 Andrew Tridgell
*
* 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 3 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 "ccache.h"
struct args *
args_init(int init_argc, char **init_args)
{
struct args *args;
int i;
args = (struct args *)x_malloc(sizeof(struct args));
args->argc = 0;
args->argv = (char **)x_malloc(sizeof(char *));
args->argv[0] = NULL;
for (i = 0; i < init_argc; i++) {
args_add(args, init_args[i]);
}
return args;
}
struct args *
args_init_from_string(const char *command)
{
struct args *args;
char *p = x_strdup(command);
char *q = p;
char *word, *saveptr = NULL;
args = args_init(0, NULL);
while ((word = strtok_r(q, " \t\r\n", &saveptr))) {
args_add(args, word);
q = NULL;
}
free(p);
return args;
}
struct args *
args_copy(struct args *args)
{
return args_init(args->argc, args->argv);
}
void
args_free(struct args *args)
{
int i;
if (!args) return;
for (i = 0; i < args->argc; ++i) {
if (args->argv[i]) {
free(args->argv[i]);
}
}
free(args->argv);
free(args);
}
void
args_add(struct args *args, const char *s)
{
args->argv = (char**)x_realloc(args->argv, (args->argc + 2) * sizeof(char *));
args->argv[args->argc] = x_strdup(s);
args->argc++;
args->argv[args->argc] = NULL;
}
/* Add all arguments in to_append to args. */
void
args_extend(struct args *args, struct args *to_append)
{
int i;
for (i = 0; i < to_append->argc; i++) {
args_add(args, to_append->argv[i]);
}
}
/* pop the last element off the args list */
void
args_pop(struct args *args, int n)
{
while (n--) {
args->argc--;
free(args->argv[args->argc]);
args->argv[args->argc] = NULL;
}
}
/* set argument at given index */
void
args_set(struct args *args, int index, const char *value)
{
assert(index < args->argc);
free(args->argv[index]);
args->argv[index] = x_strdup(value);
}
/* remove the first element of the argument list */
void
args_remove_first(struct args *args)
{
free(args->argv[0]);
memmove(&args->argv[0], &args->argv[1], args->argc * sizeof(args->argv[0]));
args->argc--;
}
/* add an argument into the front of the argument list */
void
args_add_prefix(struct args *args, const char *s)
{
args->argv = (char**)x_realloc(args->argv, (args->argc + 2) * sizeof(char *));
memmove(&args->argv[1], &args->argv[0],
(args->argc+1) * sizeof(args->argv[0]));
args->argv[0] = x_strdup(s);
args->argc++;
}
/* strip any arguments beginning with the specified prefix */
void
args_strip(struct args *args, const char *prefix)
{
int i;
for (i = 0; i < args->argc; ) {
if (str_startswith(args->argv[i], prefix)) {
free(args->argv[i]);
memmove(&args->argv[i],
&args->argv[i+1],
(args->argc - i) * sizeof(args->argv[i]));
args->argc--;
} else {
i++;
}
}
}
/*
* Format args to a space-separated string. Does not quote spaces. Caller
* frees.
*/
char *
args_to_string(struct args *args)
{
char *result;
char **p;
unsigned size = 0;
int pos;
for (p = args->argv; *p; p++) {
size += strlen(*p) + 1;
}
result = x_malloc(size + 1);
pos = 0;
for (p = args->argv; *p; p++) {
pos += sprintf(&result[pos], "%s ", *p);
}
result[pos - 1] = '\0';
return result;
}
/* Returns true if args1 equals args2, else false. */
bool
args_equal(struct args *args1, struct args *args2)
{
int i;
if (args1->argc != args2->argc) {
return false;
}
for (i = 0; i < args1->argc; i++) {
if (!str_eq(args1->argv[i], args2->argv[i])) {
return false;
}
}
return true;
}