mirror of
https://github.com/tmux/tmux.git
synced 2024-12-13 01:48:47 +00:00
2e5b3ab8bc
others). Fixes crashes with J in malloc_options reported by oga.
419 lines
9.4 KiB
C
419 lines
9.4 KiB
C
/* $OpenBSD$ */
|
|
|
|
/*
|
|
* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
|
|
*
|
|
* 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 MIND, 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 <sys/types.h>
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "tmux.h"
|
|
|
|
int cmd_getopt(int, char **, const char *, uint64_t);
|
|
int cmd_flags(int, uint64_t, uint64_t *);
|
|
size_t cmd_print_flags(char *, size_t, size_t, uint64_t);
|
|
int cmd_fill_argument(int, char **, char **, int, char **);
|
|
|
|
size_t
|
|
cmd_prarg(char *buf, size_t len, const char *prefix, char *arg)
|
|
{
|
|
if (strchr(arg, ' ') != NULL)
|
|
return (xsnprintf(buf, len, "%s\"%s\"", prefix, arg));
|
|
return (xsnprintf(buf, len, "%s%s", prefix, arg));
|
|
}
|
|
|
|
/* Prepend flags from chflags onto flagstr and call getopt. */
|
|
int
|
|
cmd_getopt(int argc, char **argv, const char *flagstr, uint64_t chflags)
|
|
{
|
|
u_char ch;
|
|
char buf[128];
|
|
size_t len, off;
|
|
|
|
*buf = '\0';
|
|
|
|
len = sizeof buf;
|
|
off = 0;
|
|
|
|
for (ch = 0; ch < 26; ch++) {
|
|
if (chflags & CMD_CHFLAG('a' + ch))
|
|
off += xsnprintf(buf + off, len - off, "%c", 'a' + ch);
|
|
if (chflags & CMD_CHFLAG('A' + ch))
|
|
off += xsnprintf(buf + off, len - off, "%c", 'A' + ch);
|
|
}
|
|
|
|
strlcat(buf, flagstr, sizeof buf);
|
|
|
|
return (getopt(argc, argv, buf));
|
|
}
|
|
|
|
/*
|
|
* If this option is expected (in ichflags), set it in ochflags, otherwise
|
|
* return -1.
|
|
*/
|
|
int
|
|
cmd_flags(int opt, uint64_t ichflags, uint64_t *ochflags)
|
|
{
|
|
u_char ch;
|
|
|
|
for (ch = 0; ch < 26; ch++) {
|
|
if (opt == 'a' + ch && ichflags & CMD_CHFLAG(opt)) {
|
|
(*ochflags) |= CMD_CHFLAG(opt);
|
|
return (0);
|
|
}
|
|
if (opt == 'A' + ch && ichflags & CMD_CHFLAG(opt)) {
|
|
(*ochflags) |= CMD_CHFLAG(opt);
|
|
return (0);
|
|
}
|
|
}
|
|
return (-1);
|
|
}
|
|
|
|
/* Print the flags supported in chflags. */
|
|
size_t
|
|
cmd_print_flags(char *buf, size_t len, size_t off, uint64_t chflags)
|
|
{
|
|
u_char ch;
|
|
size_t boff = off;
|
|
|
|
if (chflags == 0)
|
|
return (0);
|
|
off += xsnprintf(buf + off, len - off, " -");
|
|
|
|
for (ch = 0; ch < 26; ch++) {
|
|
if (chflags & CMD_CHFLAG('a' + ch))
|
|
off += xsnprintf(buf + off, len - off, "%c", 'a' + ch);
|
|
if (chflags & CMD_CHFLAG('A' + ch))
|
|
off += xsnprintf(buf + off, len - off, "%c", 'A' + ch);
|
|
}
|
|
return (off - boff);
|
|
}
|
|
|
|
int
|
|
cmd_fill_argument(int flags, char **arg, char **arg2, int argc, char **argv)
|
|
{
|
|
*arg = NULL;
|
|
*arg2 = NULL;
|
|
|
|
if (flags & CMD_ARG1) {
|
|
if (argc != 1)
|
|
return (-1);
|
|
*arg = xstrdup(argv[0]);
|
|
return (0);
|
|
}
|
|
|
|
if (flags & CMD_ARG01) {
|
|
if (argc != 0 && argc != 1)
|
|
return (-1);
|
|
if (argc == 1)
|
|
*arg = xstrdup(argv[0]);
|
|
return (0);
|
|
}
|
|
|
|
if (flags & CMD_ARG2) {
|
|
if (argc != 2)
|
|
return (-1);
|
|
*arg = xstrdup(argv[0]);
|
|
*arg2 = xstrdup(argv[1]);
|
|
return (0);
|
|
}
|
|
|
|
if (flags & CMD_ARG12) {
|
|
if (argc != 1 && argc != 2)
|
|
return (-1);
|
|
*arg = xstrdup(argv[0]);
|
|
if (argc == 2)
|
|
*arg2 = xstrdup(argv[1]);
|
|
return (0);
|
|
}
|
|
|
|
if (argc != 0)
|
|
return (-1);
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
cmd_target_init(struct cmd *self, unused int key)
|
|
{
|
|
struct cmd_target_data *data;
|
|
|
|
self->data = data = xmalloc(sizeof *data);
|
|
data->chflags = 0;
|
|
data->target = NULL;
|
|
data->arg = NULL;
|
|
data->arg2 = NULL;
|
|
}
|
|
|
|
int
|
|
cmd_target_parse(struct cmd *self, int argc, char **argv, char **cause)
|
|
{
|
|
struct cmd_target_data *data;
|
|
const struct cmd_entry *entry = self->entry;
|
|
int opt;
|
|
|
|
/* Don't use the entry version since it may be dependent on key. */
|
|
cmd_target_init(self, 0);
|
|
data = self->data;
|
|
|
|
while ((opt = cmd_getopt(argc, argv, "t:", entry->chflags)) != -1) {
|
|
if (cmd_flags(opt, entry->chflags, &data->chflags) == 0)
|
|
continue;
|
|
switch (opt) {
|
|
case 't':
|
|
if (data->target == NULL)
|
|
data->target = xstrdup(optarg);
|
|
break;
|
|
default:
|
|
goto usage;
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (cmd_fill_argument(
|
|
self->entry->flags, &data->arg, &data->arg2, argc, argv) != 0)
|
|
goto usage;
|
|
return (0);
|
|
|
|
usage:
|
|
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
|
|
|
|
self->entry->free(self);
|
|
return (-1);
|
|
}
|
|
|
|
void
|
|
cmd_target_free(struct cmd *self)
|
|
{
|
|
struct cmd_target_data *data = self->data;
|
|
|
|
if (data->target != NULL)
|
|
xfree(data->target);
|
|
if (data->arg != NULL)
|
|
xfree(data->arg);
|
|
if (data->arg2 != NULL)
|
|
xfree(data->arg2);
|
|
xfree(data);
|
|
}
|
|
|
|
size_t
|
|
cmd_target_print(struct cmd *self, char *buf, size_t len)
|
|
{
|
|
struct cmd_target_data *data = self->data;
|
|
size_t off = 0;
|
|
|
|
off += xsnprintf(buf, len, "%s", self->entry->name);
|
|
if (data == NULL)
|
|
return (off);
|
|
off += cmd_print_flags(buf, len, off, data->chflags);
|
|
if (off < len && data->target != NULL)
|
|
off += cmd_prarg(buf + off, len - off, " -t ", data->target);
|
|
if (off < len && data->arg != NULL)
|
|
off += cmd_prarg(buf + off, len - off, " ", data->arg);
|
|
if (off < len && data->arg2 != NULL)
|
|
off += cmd_prarg(buf + off, len - off, " ", data->arg2);
|
|
return (off);
|
|
}
|
|
|
|
void
|
|
cmd_srcdst_init(struct cmd *self, unused int key)
|
|
{
|
|
struct cmd_srcdst_data *data;
|
|
|
|
self->data = data = xmalloc(sizeof *data);
|
|
data->chflags = 0;
|
|
data->src = NULL;
|
|
data->dst = NULL;
|
|
data->arg = NULL;
|
|
data->arg2 = NULL;
|
|
}
|
|
|
|
int
|
|
cmd_srcdst_parse(struct cmd *self, int argc, char **argv, char **cause)
|
|
{
|
|
struct cmd_srcdst_data *data;
|
|
const struct cmd_entry *entry = self->entry;
|
|
int opt;
|
|
|
|
cmd_srcdst_init(self, 0);
|
|
data = self->data;
|
|
|
|
while ((opt = cmd_getopt(argc, argv, "s:t:", entry->chflags)) != -1) {
|
|
if (cmd_flags(opt, entry->chflags, &data->chflags) == 0)
|
|
continue;
|
|
switch (opt) {
|
|
case 's':
|
|
if (data->src == NULL)
|
|
data->src = xstrdup(optarg);
|
|
break;
|
|
case 't':
|
|
if (data->dst == NULL)
|
|
data->dst = xstrdup(optarg);
|
|
break;
|
|
default:
|
|
goto usage;
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (cmd_fill_argument(
|
|
self->entry->flags, &data->arg, &data->arg2, argc, argv) != 0)
|
|
goto usage;
|
|
return (0);
|
|
|
|
usage:
|
|
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
|
|
|
|
self->entry->free(self);
|
|
return (-1);
|
|
}
|
|
|
|
void
|
|
cmd_srcdst_free(struct cmd *self)
|
|
{
|
|
struct cmd_srcdst_data *data = self->data;
|
|
|
|
if (data->src != NULL)
|
|
xfree(data->src);
|
|
if (data->dst != NULL)
|
|
xfree(data->dst);
|
|
if (data->arg != NULL)
|
|
xfree(data->arg);
|
|
if (data->arg2 != NULL)
|
|
xfree(data->arg2);
|
|
xfree(data);
|
|
}
|
|
|
|
size_t
|
|
cmd_srcdst_print(struct cmd *self, char *buf, size_t len)
|
|
{
|
|
struct cmd_srcdst_data *data = self->data;
|
|
size_t off = 0;
|
|
|
|
off += xsnprintf(buf, len, "%s", self->entry->name);
|
|
if (data == NULL)
|
|
return (off);
|
|
off += cmd_print_flags(buf, len, off, data->chflags);
|
|
if (off < len && data->src != NULL)
|
|
off += xsnprintf(buf + off, len - off, " -s %s", data->src);
|
|
if (off < len && data->dst != NULL)
|
|
off += xsnprintf(buf + off, len - off, " -t %s", data->dst);
|
|
if (off < len && data->arg != NULL)
|
|
off += cmd_prarg(buf + off, len - off, " ", data->arg);
|
|
if (off < len && data->arg2 != NULL)
|
|
off += cmd_prarg(buf + off, len - off, " ", data->arg2);
|
|
return (off);
|
|
}
|
|
|
|
void
|
|
cmd_buffer_init(struct cmd *self, unused int key)
|
|
{
|
|
struct cmd_buffer_data *data;
|
|
|
|
self->data = data = xmalloc(sizeof *data);
|
|
data->chflags = 0;
|
|
data->target = NULL;
|
|
data->buffer = -1;
|
|
data->arg = NULL;
|
|
data->arg2 = NULL;
|
|
}
|
|
|
|
int
|
|
cmd_buffer_parse(struct cmd *self, int argc, char **argv, char **cause)
|
|
{
|
|
struct cmd_buffer_data *data;
|
|
const struct cmd_entry *entry = self->entry;
|
|
int opt, n;
|
|
const char *errstr;
|
|
|
|
cmd_buffer_init(self, 0);
|
|
data = self->data;
|
|
|
|
while ((opt = cmd_getopt(argc, argv, "b:t:", entry->chflags)) != -1) {
|
|
if (cmd_flags(opt, entry->chflags, &data->chflags) == 0)
|
|
continue;
|
|
switch (opt) {
|
|
case 'b':
|
|
if (data->buffer == -1) {
|
|
n = strtonum(optarg, 0, INT_MAX, &errstr);
|
|
if (errstr != NULL) {
|
|
xasprintf(cause, "buffer %s", errstr);
|
|
goto error;
|
|
}
|
|
data->buffer = n;
|
|
}
|
|
break;
|
|
case 't':
|
|
if (data->target == NULL)
|
|
data->target = xstrdup(optarg);
|
|
break;
|
|
default:
|
|
goto usage;
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (cmd_fill_argument(
|
|
self->entry->flags, &data->arg, &data->arg2, argc, argv) != 0)
|
|
goto usage;
|
|
return (0);
|
|
|
|
usage:
|
|
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
|
|
|
|
error:
|
|
self->entry->free(self);
|
|
return (-1);
|
|
}
|
|
|
|
void
|
|
cmd_buffer_free(struct cmd *self)
|
|
{
|
|
struct cmd_buffer_data *data = self->data;
|
|
|
|
if (data->target != NULL)
|
|
xfree(data->target);
|
|
if (data->arg != NULL)
|
|
xfree(data->arg);
|
|
if (data->arg2 != NULL)
|
|
xfree(data->arg2);
|
|
xfree(data);
|
|
}
|
|
|
|
size_t
|
|
cmd_buffer_print(struct cmd *self, char *buf, size_t len)
|
|
{
|
|
struct cmd_buffer_data *data = self->data;
|
|
size_t off = 0;
|
|
|
|
off += xsnprintf(buf, len, "%s", self->entry->name);
|
|
if (data == NULL)
|
|
return (off);
|
|
off += cmd_print_flags(buf, len, off, data->chflags);
|
|
if (off < len && data->buffer != -1)
|
|
off += xsnprintf(buf + off, len - off, " -b %d", data->buffer);
|
|
if (off < len && data->target != NULL)
|
|
off += cmd_prarg(buf + off, len - off, " -t ", data->target);
|
|
if (off < len && data->arg != NULL)
|
|
off += cmd_prarg(buf + off, len - off, " ", data->arg);
|
|
if (off < len && data->arg2 != NULL)
|
|
off += cmd_prarg(buf + off, len - off, " ", data->arg2);
|
|
return (off);
|
|
}
|