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/* $OpenBSD: fuse_opt.c,v 1.4 2013/06/12 22:44:42 tedu Exp $ */
/*
* Copyright (c) 2013 Sylvestre Gallon <ccna.syl@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#include "debug.h"
#include "fuse_opt.h"
#include "fuse_private.h"
int
fuse_opt_add_arg(struct fuse_args *args, const char *name)
{
char **av;
int i;
/* copy argv, we cannot reallocate the orignal argv */
if (args->allocated == 0) {
av = malloc((args->argc + 1) * sizeof(*av));
if (av == NULL)
return (-1);
for (i = 0; i < args->argc; i++) {
av[i] = strdup(args->argv[i]);
if (av[i] == NULL)
return (-1);
}
av[args->argc] = strdup(name);
if (av[args->argc] == NULL)
return (-1);
args->argc++;
args->argv = av;
args->allocated = 1;
} else {
av = realloc(args->argv, (args->argc + 1) * sizeof(*av));
if (av == NULL)
return (-1);
args->argv = av;
args->argc++;
args->argv[args->argc - 1] = strdup(name);
if (args->argv[args->argc - 1] == NULL)
return (-1);
}
return (0);
}
int
fuse_opt_parse(struct fuse_args *args, void *data, struct fuse_opt *opt,
fuse_opt_proc_t f)
{
const char *arg;
struct fuse_opt *good;
int ret;
int i, j;
for (i = 0; i < args->argc; i++) {
arg = args->argv[i];
/* not - and not -- */
if (arg[0] != '-') {
ret = (f) ? f(data, arg, FUSE_OPT_KEY_NONOPT, 0) : 0;
if (ret == -1)
return (ret);
} else {
switch (arg[1]) {
case 'o':
DPRINTF("%s: -o X,Y not supported yet.\n",
__func__);
break ;
case '-':
DPRINTF("%s: long option not supported yet.",
__func__);
break ;
default:
good = NULL;
for (j = 0; opt[j].templ != NULL; j++)
if (strcmp(arg, opt[j].templ) == 0) {
good = &opt[j];
break ;
}
if (!good)
break ;
if (good->val == -1 && f) {
ret = f(data, arg, good->val, 0);
if (ret == -1)
return (ret);
}
break;
}
}
}
return (0);
}
int
fuse_opt_insert_arg(struct fuse_args *args, int p, const char *arg)
{
char **av;
int i;
if (p > args->argc + 1)
return -1;
if (args->allocated) {
av = realloc(args->argv, (args->argc + 1) * sizeof(char *));
if (av == NULL)
return (-1);
args->argv = av;
args->argc++;
for (i = args->argc - 1; i > p; i++)
args->argv[i] = args->argv[i - 1];
args->argv[p] = strdup(arg);
if (args->argv[p] == NULL)
return (-1);
}
return (0);
}
int
fuse_opt_free_args(struct fuse_args *args)
{
int i;
if (args->allocated)
for (i = 0; i < args->argc; i++)
free(args->argv[i]);
free(args->argv);
args->allocated = 0;
args->argc = 0;
return (0);
}
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