/src/libfuse/lib/fuse_opt.c

Source
/*
  FUSE: Filesystem in Userspace
  Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>

  Implementation of option parsing routines (dealing with `struct
  fuse_args`).

  This program can be distributed under the terms of the GNU LGPLv2.
  See the file LGPL2.txt
*/

#include "fuse_config.h"
#include "fuse_i.h"
#include "fuse_opt.h"
#include "fuse_misc.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

struct fuse_opt_context {
  void *data;
  const struct fuse_opt *opt;
  fuse_opt_proc_t proc;
  int argctr;
  int argc;
  char **argv;
  struct fuse_args outargs;
  char *opts;
  int nonopt;
};

void fuse_opt_free_args(struct fuse_args *args)
{
  if (args) {
    if (args->argv && args->allocated) {
      int i;
      for (i = 0; i < args->argc; i++)
        free(args->argv[i]);
      free(args->argv);
    }
    args->argc = 0;
    args->argv = NULL;
    args->allocated = 0;
  }
}

static int alloc_failed(void)
{
  fuse_log(FUSE_LOG_ERR, "fuse: memory allocation failed\n");
  return -1;
}

int fuse_opt_add_arg(struct fuse_args *args, const char *arg)
{
  char **newargv;
  char *newarg;

  assert(!args->argv || args->allocated);

  newarg = strdup(arg);
  if (!newarg)
    return alloc_failed();

  newargv = realloc(args->argv, (args->argc + 2) * sizeof(char *));
  if (!newargv) {
    free(newarg);
    return alloc_failed();
  }

  args->argv = newargv;
  args->allocated = 1;
  args->argv[args->argc++] = newarg;
  args->argv[args->argc] = NULL;
  return 0;
}

static int fuse_opt_insert_arg_common(struct fuse_args *args, int pos,
              const char *arg)
{
  assert(pos <= args->argc);
  if (fuse_opt_add_arg(args, arg) == -1)
    return -1;

  if (pos != args->argc - 1) {
    char *newarg = args->argv[args->argc - 1];
    memmove(&args->argv[pos + 1], &args->argv[pos],
      sizeof(char *) * (args->argc - pos - 1));
    args->argv[pos] = newarg;
  }
  return 0;
}

int fuse_opt_insert_arg(struct fuse_args *args, int pos, const char *arg)
{
  return fuse_opt_insert_arg_common(args, pos, arg);
}

static int next_arg(struct fuse_opt_context *ctx, const char *opt)
{
  if (ctx->argctr + 1 >= ctx->argc) {
    fuse_log(FUSE_LOG_ERR, "fuse: missing argument after `%s'\n", opt);
    return -1;
  }
  ctx->argctr++;
  return 0;
}

static int add_arg(struct fuse_opt_context *ctx, const char *arg)
{
  return fuse_opt_add_arg(&ctx->outargs, arg);
}

static int add_opt_common(char **opts, const char *opt, int esc)
{
  unsigned oldlen = *opts ? strlen(*opts) : 0;
  char *d = realloc(*opts, oldlen + 1 + strlen(opt) * 2 + 1);

  if (!d)
    return alloc_failed();

  *opts = d;
  if (oldlen) {
    d += oldlen;
    *d++ = ',';
  }

  for (; *opt; opt++) {
    if (esc && (*opt == ',' || *opt == '\\'))
      *d++ = '\\';
    *d++ = *opt;
  }
  *d = '\0';

  return 0;
}

int fuse_opt_add_opt(char **opts, const char *opt)
{
  return add_opt_common(opts, opt, 0);
}

int fuse_opt_add_opt_escaped(char **opts, const char *opt)
{
  return add_opt_common(opts, opt, 1);
}

static int add_opt(struct fuse_opt_context *ctx, const char *opt)
{
  return add_opt_common(&ctx->opts, opt, 1);
}

static int call_proc(struct fuse_opt_context *ctx, const char *arg, int key,
         int iso)
{
  if (key == FUSE_OPT_KEY_DISCARD)
    return 0;

  if (key != FUSE_OPT_KEY_KEEP && ctx->proc) {
    int res = ctx->proc(ctx->data, arg, key, &ctx->outargs);
    if (res == -1 || !res)
      return res;
  }
  if (iso)
    return add_opt(ctx, arg);
  else
    return add_arg(ctx, arg);
}

static int match_template(const char *t, const char *arg, unsigned *sepp)
{
  int arglen = strlen(arg);
  const char *sep = strchr(t, '=');
  sep = sep ? sep : strchr(t, ' ');
  if (sep && (!sep[1] || sep[1] == '%')) {
    int tlen = sep - t;
    if (sep[0] == '=')
      tlen ++;
    if (arglen >= tlen && strncmp(arg, t, tlen) == 0) {
      *sepp = sep - t;
      return 1;
    }
  }
  if (strcmp(t, arg) == 0) {
    *sepp = 0;
    return 1;
  }
  return 0;
}

static const struct fuse_opt *find_opt(const struct fuse_opt *opt,
               const char *arg, unsigned *sepp)
{
  for (; opt && opt->templ; opt++)
    if (match_template(opt->templ, arg, sepp))
      return opt;
  return NULL;
}

int fuse_opt_match(const struct fuse_opt *opts, const char *opt)
{
  unsigned dummy;
  return find_opt(opts, opt, &dummy) ? 1 : 0;
}

static int process_opt_param(void *var, const char *format, const char *param,
           const char *arg)
{
  assert(format[0] == '%');
  if (format[1] == 's') {
    char **s = var;
    char *copy = strdup(param);
    if (!copy)
      return alloc_failed();

    free(*s);
    *s = copy;
  } else {
    if (sscanf(param, format, var) != 1) {
      fuse_log(FUSE_LOG_ERR, "fuse: invalid parameter in option `%s'\n", arg);
      return -1;
    }
  }
  return 0;
}

static int process_opt(struct fuse_opt_context *ctx,
           const struct fuse_opt *opt, unsigned sep,
           const char *arg, int iso)
{
  if (opt->offset == -1U) {
    if (call_proc(ctx, arg, opt->value, iso) == -1)
      return -1;
  } else {
    void *var = (char *)ctx->data + opt->offset;
    if (sep && opt->templ[sep + 1]) {
      const char *param = arg + sep;
      if (opt->templ[sep] == '=')
        param ++;
      if (process_opt_param(var, opt->templ + sep + 1,
                param, arg) == -1)
        return -1;
    } else
      *(int *)var = opt->value;
  }
  return 0;
}

static int process_opt_sep_arg(struct fuse_opt_context *ctx,
             const struct fuse_opt *opt, unsigned sep,
             const char *arg, int iso)
{
  int res;
  char *newarg;
  char *param;

  if (next_arg(ctx, arg) == -1)
    return -1;

  param = ctx->argv[ctx->argctr];
  newarg = malloc(sep + strlen(param) + 1);
  if (!newarg)
    return alloc_failed();

  memcpy(newarg, arg, sep);
  strcpy(newarg + sep, param);
  res = process_opt(ctx, opt, sep, newarg, iso);
  free(newarg);

  return res;
}

static int process_gopt(struct fuse_opt_context *ctx, const char *arg, int iso)
{
  unsigned sep;
  const struct fuse_opt *opt = find_opt(ctx->opt, arg, &sep);
  if (opt) {
    for (; opt; opt = find_opt(opt + 1, arg, &sep)) {
      int res;
      if (sep && opt->templ[sep] == ' ' && !arg[sep])
        res = process_opt_sep_arg(ctx, opt, sep, arg,
                iso);
      else
        res = process_opt(ctx, opt, sep, arg, iso);
      if (res == -1)
        return -1;
    }
    return 0;
  } else
    return call_proc(ctx, arg, FUSE_OPT_KEY_OPT, iso);
}

static int process_real_option_group(struct fuse_opt_context *ctx, char *opts)
{
  char *s = opts;
  char *d = s;
  int end = 0;

  while (!end) {
    if (*s == '\0')
      end = 1;
    if (*s == ',' || end) {
      int res;

      *d = '\0';
      res = process_gopt(ctx, opts, 1);
      if (res == -1)
        return -1;
      d = opts;
    } else {
      if (s[0] == '\\' && s[1] != '\0') {
        s++;
        if (s[0] >= '0' && s[0] <= '3' &&
            s[1] >= '0' && s[1] <= '7' &&
            s[2] >= '0' && s[2] <= '7') {
          *d++ = (s[0] - '0') * 0100 +
            (s[1] - '0') * 0010 +
            (s[2] - '0');
          s += 2;
        } else {
          *d++ = *s;
        }
      } else {
        *d++ = *s;
      }
    }
    s++;
  }

  return 0;
}

static int process_option_group(struct fuse_opt_context *ctx, const char *opts)
{
  int res;
  char *copy = strdup(opts);

  if (!copy) {
    fuse_log(FUSE_LOG_ERR, "fuse: memory allocation failed\n");
    return -1;
  }
  res = process_real_option_group(ctx, copy);
  free(copy);
  return res;
}

static int process_one(struct fuse_opt_context *ctx, const char *arg)
{
  if (ctx->nonopt || arg[0] != '-')
    return call_proc(ctx, arg, FUSE_OPT_KEY_NONOPT, 0);
  else if (arg[1] == 'o') {
    if (arg[2])
      return process_option_group(ctx, arg + 2);
    else {
      if (next_arg(ctx, arg) == -1)
        return -1;

      return process_option_group(ctx,
                ctx->argv[ctx->argctr]);
    }
  } else if (arg[1] == '-' && !arg[2]) {
    if (add_arg(ctx, arg) == -1)
      return -1;
    ctx->nonopt = ctx->outargs.argc;
    return 0;
  } else
    return process_gopt(ctx, arg, 0);
}

static int opt_parse(struct fuse_opt_context *ctx)
{
  if (ctx->argc) {
    if (add_arg(ctx, ctx->argv[0]) == -1)
      return -1;
  }

  for (ctx->argctr = 1; ctx->argctr < ctx->argc; ctx->argctr++)
    if (process_one(ctx, ctx->argv[ctx->argctr]) == -1)
      return -1;

  if (ctx->opts) {
    if (fuse_opt_insert_arg(&ctx->outargs, 1, "-o") == -1 ||
        fuse_opt_insert_arg(&ctx->outargs, 2, ctx->opts) == -1)
      return -1;
  }

  /* If option separator ("--") is the last argument, remove it */
  if (ctx->nonopt && ctx->nonopt == ctx->outargs.argc &&
      strcmp(ctx->outargs.argv[ctx->outargs.argc - 1], "--") == 0) {
    free(ctx->outargs.argv[ctx->outargs.argc - 1]);
    ctx->outargs.argv[--ctx->outargs.argc] = NULL;
  }

  return 0;
}

int fuse_opt_parse(struct fuse_args *args, void *data,
       const struct fuse_opt opts[], fuse_opt_proc_t proc)
{
  int res;
  struct fuse_opt_context ctx = {
    .data = data,
    .opt = opts,
    .proc = proc,
  };

  if (!args || !args->argv || !args->argc)
    return 0;

  ctx.argc = args->argc;
  ctx.argv = args->argv;

  res = opt_parse(&ctx);
  if (res != -1) {
    struct fuse_args tmp = *args;
    *args = ctx.outargs;
    ctx.outargs = tmp;
  }
  free(ctx.opts);
  fuse_opt_free_args(&ctx.outargs);
  return res;
}

Coverage Report

Created: 2025-12-11 06:24

Line	Count	Source
1		/*
2		FUSE: Filesystem in Userspace
3		Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu>
4
5		Implementation of option parsing routines (dealing with `struct
6		fuse_args`).
7
8		This program can be distributed under the terms of the GNU LGPLv2.
9		See the file LGPL2.txt
10		*/
11
12		#include "fuse_config.h"
13		#include "fuse_i.h"
14		#include "fuse_opt.h"
15		#include "fuse_misc.h"
16
17		#include <stdio.h>
18		#include <stdlib.h>
19		#include <string.h>
20		#include <assert.h>
21
22		struct fuse_opt_context {
23		void *data;
24		const struct fuse_opt *opt;
25		fuse_opt_proc_t proc;
26		int argctr;
27		int argc;
28		char **argv;
29		struct fuse_args outargs;
30		char *opts;
31		int nonopt;
32		};
33
34		void fuse_opt_free_args(struct fuse_args *args)
35	634	{
36	634	if (args) {
37	634	if (args->argv && args->allocated) {
38	320	int i;
39	3.47k	for (i = 0; i < args->argc; i++)
40	3.15k	free(args->argv[i]);
41	320	free(args->argv);
42	320	}
43	634	args->argc = 0;
44	634	args->argv = NULL;
45	634	args->allocated = 0;
46	634	}
47	634	}
48
49		static int alloc_failed(void)
50	0	{
51	0	fuse_log(FUSE_LOG_ERR, "fuse: memory allocation failed\n");
52	0	return -1;
53	0	}
54
55		int fuse_opt_add_arg(struct fuse_args args, const char arg)
56	3.15k	{
57	3.15k	char **newargv;
58	3.15k	char *newarg;
59
60	3.15k	assert(!args->argv \|\| args->allocated);
61
62	3.15k	newarg = strdup(arg);
63	3.15k	if (!newarg)
64	0	return alloc_failed();
65
66	3.15k	newargv = realloc(args->argv, (args->argc + 2) * sizeof(char *));
67	3.15k	if (!newargv) {
68	0	free(newarg);
69	0	return alloc_failed();
70	0	}
71
72	3.15k	args->argv = newargv;
73	3.15k	args->allocated = 1;
74	3.15k	args->argv[args->argc++] = newarg;
75	3.15k	args->argv[args->argc] = NULL;
76	3.15k	return 0;
77	3.15k	}
78
79		static int fuse_opt_insert_arg_common(struct fuse_args *args, int pos,
80		const char *arg)
81	370	{
82	370	assert(pos <= args->argc);
83	370	if (fuse_opt_add_arg(args, arg) == -1)
84	0	return -1;
85
86	370	if (pos != args->argc - 1) {
87	368	char *newarg = args->argv[args->argc - 1];
88	368	memmove(&args->argv[pos + 1], &args->argv[pos],
89	368	sizeof(char ) (args->argc - pos - 1));
90	368	args->argv[pos] = newarg;
91	368	}
92	370	return 0;
93	370	}
94
95		int fuse_opt_insert_arg(struct fuse_args args, int pos, const char arg)
96	370	{
97	370	return fuse_opt_insert_arg_common(args, pos, arg);
98	370	}
99
100		static int next_arg(struct fuse_opt_context ctx, const char opt)
101	26	{
102	26	if (ctx->argctr + 1 >= ctx->argc) {
103	6	fuse_log(FUSE_LOG_ERR, "fuse: missing argument after `%s'\n", opt);
104	6	return -1;
105	6	}
106	20	ctx->argctr++;
107	20	return 0;
108	26	}
109
110		static int add_arg(struct fuse_opt_context ctx, const char arg)
111	2.78k	{
112	2.78k	return fuse_opt_add_arg(&ctx->outargs, arg);
113	2.78k	}
114
115		static int add_opt_common(char *opts, const char opt, int esc)
116	3.14k	{
117	3.14k	unsigned oldlen = opts ? strlen(opts) : 0;
118	3.14k	char d = realloc(opts, oldlen + 1 + strlen(opt) * 2 + 1);
119
120	3.14k	if (!d)
121	0	return alloc_failed();
122
123	3.14k	*opts = d;
124	3.14k	if (oldlen) {
125	2.64k	d += oldlen;
126	2.64k	*d++ = ',';
127	2.64k	}
128
129	16.8k	for (; *opt; opt++) {
130	13.6k	if (esc && (opt == ',' \|\| opt == '\\'))
131	761	*d++ = '\\';
132	13.6k	d++ = opt;
133	13.6k	}
134	3.14k	*d = '\0';
135
136	3.14k	return 0;
137	3.14k	}
138
139		int fuse_opt_add_opt(char *opts, const char opt)
140	0	{
141	0	return add_opt_common(opts, opt, 0);
142	0	}
143
144		int fuse_opt_add_opt_escaped(char *opts, const char opt)
145	0	{
146	0	return add_opt_common(opts, opt, 1);
147	0	}
148
149		static int add_opt(struct fuse_opt_context ctx, const char opt)
150	3.14k	{
151	3.14k	return add_opt_common(&ctx->opts, opt, 1);
152	3.14k	}
153
154		static int call_proc(struct fuse_opt_context ctx, const char arg, int key,
155		int iso)
156	5.59k	{
157	5.59k	if (key == FUSE_OPT_KEY_DISCARD)
158	0	return 0;
159
160	5.59k	if (key != FUSE_OPT_KEY_KEEP && ctx->proc) {
161	0	int res = ctx->proc(ctx->data, arg, key, &ctx->outargs);
162	0	if (res == -1 \|\| !res)
163	0	return res;
164	0	}
165	5.59k	if (iso)
166	3.14k	return add_opt(ctx, arg);
167	2.45k	else
168	2.45k	return add_arg(ctx, arg);
169	5.59k	}
170
171		static int match_template(const char t, const char arg, unsigned *sepp)
172	14.9k	{
173	14.9k	int arglen = strlen(arg);
174	14.9k	const char *sep = strchr(t, '=');
175	14.9k	sep = sep ? sep : strchr(t, ' ');
176	14.9k	if (sep && (!sep[1] \|\| sep[1] == '%')) {
177	7.46k	int tlen = sep - t;
178	7.46k	if (sep[0] == '=')
179	7.46k	tlen ++;
180	7.46k	if (arglen >= tlen && strncmp(arg, t, tlen) == 0) {
181	138	*sepp = sep - t;
182	138	return 1;
183	138	}
184	7.46k	}
185	14.7k	if (strcmp(t, arg) == 0) {
186	375	*sepp = 0;
187	375	return 1;
188	375	}
189	14.4k	return 0;
190	14.7k	}
191
192		static const struct fuse_opt find_opt(const struct fuse_opt opt,
193		const char arg, unsigned sepp)
194	4.24k	{
195	18.6k	for (; opt && opt->templ; opt++)
196	14.9k	if (match_template(opt->templ, arg, sepp))
197	513	return opt;
198	3.73k	return NULL;
199	4.24k	}
200
201		int fuse_opt_match(const struct fuse_opt opts, const char opt)
202	0	{
203	0	unsigned dummy;
204	0	return find_opt(opts, opt, &dummy) ? 1 : 0;
205	0	}
206
207		static int process_opt_param(void var, const char format, const char *param,
208		const char *arg)
209	138	{
210	138	assert(format[0] == '%');
211	138	if (format[1] == 's') {
212	138	char **s = var;
213	138	char *copy = strdup(param);
214	138	if (!copy)
215	0	return alloc_failed();
216
217	138	free(*s);
218	138	*s = copy;
219	138	} else {
220	0	if (sscanf(param, format, var) != 1) {
221	0	fuse_log(FUSE_LOG_ERR, "fuse: invalid parameter in option `%s'\n", arg);
222	0	return -1;
223	0	}
224	0	}
225	138	return 0;
226	138	}
227
228		static int process_opt(struct fuse_opt_context *ctx,
229		const struct fuse_opt *opt, unsigned sep,
230		const char *arg, int iso)
231	513	{
232	513	if (opt->offset == -1U) {
233	0	if (call_proc(ctx, arg, opt->value, iso) == -1)
234	0	return -1;
235	513	} else {
236	513	void var = (char )ctx->data + opt->offset;
237	513	if (sep && opt->templ[sep + 1]) {
238	138	const char *param = arg + sep;
239	138	if (opt->templ[sep] == '=')
240	138	param ++;
241	138	if (process_opt_param(var, opt->templ + sep + 1,
242	138	param, arg) == -1)
243	0	return -1;
244	138	} else
245	375	(int )var = opt->value;
246	513	}
247	513	return 0;
248	513	}
249
250		static int process_opt_sep_arg(struct fuse_opt_context *ctx,
251		const struct fuse_opt *opt, unsigned sep,
252		const char *arg, int iso)
253	0	{
254	0	int res;
255	0	char *newarg;
256	0	char *param;
257
258	0	if (next_arg(ctx, arg) == -1)
259	0	return -1;
260
261	0	param = ctx->argv[ctx->argctr];
262	0	newarg = malloc(sep + strlen(param) + 1);
263	0	if (!newarg)
264	0	return alloc_failed();
265
266	0	memcpy(newarg, arg, sep);
267	0	strcpy(newarg + sep, param);
268	0	res = process_opt(ctx, opt, sep, newarg, iso);
269	0	free(newarg);
270
271	0	return res;
272	0	}
273
274		static int process_gopt(struct fuse_opt_context ctx, const char arg, int iso)
275	3.73k	{
276	3.73k	unsigned sep;
277	3.73k	const struct fuse_opt *opt = find_opt(ctx->opt, arg, &sep);
278	3.73k	if (opt) {
279	1.02k	for (; opt; opt = find_opt(opt + 1, arg, &sep)) {
280	513	int res;
281	513	if (sep && opt->templ[sep] == ' ' && !arg[sep])
282	0	res = process_opt_sep_arg(ctx, opt, sep, arg,
283	0	iso);
284	513	else
285	513	res = process_opt(ctx, opt, sep, arg, iso);
286	513	if (res == -1)
287	0	return -1;
288	513	}
289	513	return 0;
290	513	} else
291	3.21k	return call_proc(ctx, arg, FUSE_OPT_KEY_OPT, iso);
292	3.73k	}
293
294		static int process_real_option_group(struct fuse_opt_context ctx, char opts)
295	359	{
296	359	char *s = opts;
297	359	char *d = s;
298	359	int end = 0;
299
300	19.9k	while (!end) {
301	19.6k	if (*s == '\0')
302	359	end = 1;
303	19.6k	if (*s == ',' \|\| end) {
304	3.62k	int res;
305
306	3.62k	*d = '\0';
307	3.62k	res = process_gopt(ctx, opts, 1);
308	3.62k	if (res == -1)
309	0	return -1;
310	3.62k	d = opts;
311	15.9k	} else {
312	15.9k	if (s[0] == '\\' && s[1] != '\0') {
313	2.67k	s++;
314	2.67k	if (s[0] >= '0' && s[0] <= '3' &&
315	1.57k	s[1] >= '0' && s[1] <= '7' &&
316	827	s[2] >= '0' && s[2] <= '7') {
317	248	d++ = (s[0] - '0') 0100 +
318	248	(s[1] - '0') * 0010 +
319	248	(s[2] - '0');
320	248	s += 2;
321	2.43k	} else {
322	2.43k	d++ = s;
323	2.43k	}
324	13.2k	} else {
325	13.2k	d++ = s;
326	13.2k	}
327	15.9k	}
328	19.6k	s++;
329	19.6k	}
330
331	359	return 0;
332	359	}
333
334		static int process_option_group(struct fuse_opt_context ctx, const char opts)
335	359	{
336	359	int res;
337	359	char *copy = strdup(opts);
338
339	359	if (!copy) {
340	0	fuse_log(FUSE_LOG_ERR, "fuse: memory allocation failed\n");
341	0	return -1;
342	0	}
343	359	res = process_real_option_group(ctx, copy);
344	359	free(copy);
345	359	return res;
346	359	}
347
348		static int process_one(struct fuse_opt_context ctx, const char arg)
349	2.86k	{
350	2.86k	if (ctx->nonopt \|\| arg[0] != '-')
351	2.38k	return call_proc(ctx, arg, FUSE_OPT_KEY_NONOPT, 0);
352	478	else if (arg[1] == 'o') {
353	365	if (arg[2])
354	339	return process_option_group(ctx, arg + 2);
355	26	else {
356	26	if (next_arg(ctx, arg) == -1)
357	6	return -1;
358
359	20	return process_option_group(ctx,
360	20	ctx->argv[ctx->argctr]);
361	26	}
362	365	} else if (arg[1] == '-' && !arg[2]) {
363	9	if (add_arg(ctx, arg) == -1)
364	0	return -1;
365	9	ctx->nonopt = ctx->outargs.argc;
366	9	return 0;
367	9	} else
368	104	return process_gopt(ctx, arg, 0);
369	2.86k	}
370
371		static int opt_parse(struct fuse_opt_context *ctx)
372	320	{
373	320	if (ctx->argc) {
374	320	if (add_arg(ctx, ctx->argv[0]) == -1)
375	0	return -1;
376	320	}
377
378	3.17k	for (ctx->argctr = 1; ctx->argctr < ctx->argc; ctx->argctr++)
379	2.86k	if (process_one(ctx, ctx->argv[ctx->argctr]) == -1)
380	6	return -1;
381
382	314	if (ctx->opts) {
383	185	if (fuse_opt_insert_arg(&ctx->outargs, 1, "-o") == -1 \|\|
384	185	fuse_opt_insert_arg(&ctx->outargs, 2, ctx->opts) == -1)
385	0	return -1;
386	185	}
387
388		/* If option separator ("--") is the last argument, remove it */
389	314	if (ctx->nonopt && ctx->nonopt == ctx->outargs.argc &&
390	1	strcmp(ctx->outargs.argv[ctx->outargs.argc - 1], "--") == 0) {
391	1	free(ctx->outargs.argv[ctx->outargs.argc - 1]);
392	1	ctx->outargs.argv[--ctx->outargs.argc] = NULL;
393	1	}
394
395	314	return 0;
396	314	}
397
398		int fuse_opt_parse(struct fuse_args args, void data,
399		const struct fuse_opt opts[], fuse_opt_proc_t proc)
400	320	{
401	320	int res;
402	320	struct fuse_opt_context ctx = {
403	320	.data = data,
404	320	.opt = opts,
405	320	.proc = proc,
406	320	};
407
408	320	if (!args \|\| !args->argv \|\| !args->argc)
409	0	return 0;
410
411	320	ctx.argc = args->argc;
412	320	ctx.argv = args->argv;
413
414	320	res = opt_parse(&ctx);
415	320	if (res != -1) {
416	314	struct fuse_args tmp = *args;
417	314	*args = ctx.outargs;
418	314	ctx.outargs = tmp;
419	314	}
420	320	free(ctx.opts);
421	320	fuse_opt_free_args(&ctx.outargs);
422	320	return res;
423	320	}