tmux/cmd-generic.c

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/* $Id: cmd-generic.c,v 1.22 2009-01-18 14:40:48 nicm Exp $ */
/*
* 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"
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#define CMD_FLAGS "adgku"
int cmd_do_flags(int, int, int *);
size_t cmd_print_flags(char *, size_t, size_t, int);
int cmd_fill_argument(int, 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));
}
int
cmd_do_flags(int opt, int iflags, int *oflags)
{
switch (opt) {
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case 'a':
if (iflags & CMD_AFLAG) {
(*oflags) |= CMD_AFLAG;
return (0);
}
return (-1);
case 'd':
if (iflags & CMD_DFLAG) {
(*oflags) |= CMD_DFLAG;
return (0);
}
return (-1);
case 'g':
if (iflags & CMD_GFLAG) {
(*oflags) |= CMD_GFLAG;
return (0);
}
return (-1);
case 'k':
if (iflags & CMD_KFLAG) {
(*oflags) |= CMD_KFLAG;
return (0);
}
return (-1);
case 'u':
if (iflags & CMD_UFLAG) {
(*oflags) |= CMD_UFLAG;
return (0);
}
return (-1);
}
return (1);
}
size_t
cmd_print_flags(char *buf, size_t len, size_t off, int flags)
{
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size_t boff = off;
if ((flags & (CMD_DFLAG|CMD_GFLAG|CMD_KFLAG|CMD_UFLAG)) == 0)
return (0);
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off += xsnprintf(buf + off, len - off, " -");
if (off < len && flags & CMD_DFLAG)
off += xsnprintf(buf + off, len - off, "d");
if (off < len && flags & CMD_GFLAG)
off += xsnprintf(buf + off, len - off, "g");
if (off < len && flags & CMD_KFLAG)
off += xsnprintf(buf + off, len - off, "k");
if (off < len && flags & CMD_UFLAG)
off += xsnprintf(buf + off, len - off, "u");
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return (off - boff);
}
int
cmd_fill_argument(int flags, char **arg, int argc, char **argv)
{
*arg = NULL;
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if (flags & CMD_ARG1) {
if (argc != 1)
return (-1);
*arg = xstrdup(argv[0]);
return (0);
}
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if (flags & CMD_ARG01) {
if (argc != 0 && argc != 1)
return (-1);
if (argc == 1)
*arg = xstrdup(argv[0]);
return (0);
}
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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->flags = 0;
data->target = NULL;
data->arg = NULL;
}
int
cmd_target_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_target_data *data;
int opt;
/* Don't use the entry version since it may be dependent on key. */
cmd_target_init(self, 0);
data = self->data;
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while ((opt = getopt(argc, argv, CMD_FLAGS "t:")) != -1) {
switch (cmd_do_flags(opt, self->entry->flags, &data->flags)) {
case -1:
goto usage;
case 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, 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_send(struct cmd *self, struct buffer *b)
{
struct cmd_target_data *data = self->data;
buffer_write(b, data, sizeof *data);
cmd_send_string(b, data->target);
cmd_send_string(b, data->arg);
}
void
cmd_target_recv(struct cmd *self, struct buffer *b)
{
struct cmd_target_data *data;
self->data = data = xmalloc(sizeof *data);
buffer_read(b, data, sizeof *data);
data->target = cmd_recv_string(b);
data->arg = cmd_recv_string(b);
}
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);
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;
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off += xsnprintf(buf, len, "%s", self->entry->name);
if (data == NULL)
return (off);
off += cmd_print_flags(buf, len, off, data->flags);
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);
return (off);
}
void
cmd_srcdst_init(struct cmd *self, unused int key)
{
struct cmd_srcdst_data *data;
self->data = data = xmalloc(sizeof *data);
data->flags = 0;
data->src = NULL;
data->dst = NULL;
data->arg = NULL;
}
int
cmd_srcdst_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_srcdst_data *data;
int opt;
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cmd_srcdst_init(self, 0);
data = self->data;
while ((opt = getopt(argc, argv, CMD_FLAGS "s:t:")) != -1) {
switch (cmd_do_flags(opt, self->entry->flags, &data->flags)) {
case -1:
goto usage;
case 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, 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_send(struct cmd *self, struct buffer *b)
{
struct cmd_srcdst_data *data = self->data;
buffer_write(b, data, sizeof *data);
cmd_send_string(b, data->src);
cmd_send_string(b, data->dst);
cmd_send_string(b, data->arg);
}
void
cmd_srcdst_recv(struct cmd *self, struct buffer *b)
{
struct cmd_srcdst_data *data;
self->data = data = xmalloc(sizeof *data);
buffer_read(b, data, sizeof *data);
data->src = cmd_recv_string(b);
data->dst = cmd_recv_string(b);
data->arg = cmd_recv_string(b);
}
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);
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;
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off += xsnprintf(buf, len, "%s", self->entry->name);
if (data == NULL)
return (off);
off += cmd_print_flags(buf, len, off, data->flags);
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);
return (off);
}
void
cmd_buffer_init(struct cmd *self, unused int key)
{
struct cmd_buffer_data *data;
self->data = data = xmalloc(sizeof *data);
data->flags = 0;
data->target = NULL;
data->buffer = -1;
data->arg = NULL;
}
int
cmd_buffer_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_buffer_data *data;
int opt, n;
const char *errstr;
cmd_buffer_init(self, 0);
data = self->data;
while ((opt = getopt(argc, argv, CMD_FLAGS "b:t:")) != -1) {
switch (cmd_do_flags(opt, self->entry->flags, &data->flags)) {
case -1:
goto usage;
case 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, 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_send(struct cmd *self, struct buffer *b)
{
struct cmd_buffer_data *data = self->data;
buffer_write(b, data, sizeof *data);
cmd_send_string(b, data->target);
cmd_send_string(b, data->arg);
}
void
cmd_buffer_recv(struct cmd *self, struct buffer *b)
{
struct cmd_buffer_data *data;
self->data = data = xmalloc(sizeof *data);
buffer_read(b, data, sizeof *data);
data->target = cmd_recv_string(b);
data->arg = cmd_recv_string(b);
}
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);
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->flags);
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);
return (off);
}
void
cmd_option_init(struct cmd *self, unused int key)
{
struct cmd_option_data *data;
self->data = data = xmalloc(sizeof *data);
data->flags = 0;
data->target = NULL;
data->option = NULL;
data->value = NULL;
}
int
cmd_option_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_option_data *data;
int opt;
/* Don't use the entry version since it may be dependent on key. */
cmd_option_init(self, 0);
data = self->data;
while ((opt = getopt(argc, argv, CMD_FLAGS "t:")) != -1) {
switch (cmd_do_flags(opt, self->entry->flags, &data->flags)) {
case -1:
goto usage;
case 0:
continue;
}
switch (opt) {
case 't':
if (data->target == NULL)
data->target = xstrdup(optarg);
break;
default:
goto usage;
}
}
argc -= optind;
argv += optind;
if (argc == 2) {
data->option = xstrdup(argv[0]);
data->value = xstrdup(argv[1]);
} else if (argc == 1)
data->option = xstrdup(argv[0]);
else
goto usage;
return (0);
usage:
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
self->entry->free(self);
return (-1);
}
void
cmd_option_send(struct cmd *self, struct buffer *b)
{
struct cmd_option_data *data = self->data;
buffer_write(b, data, sizeof *data);
cmd_send_string(b, data->target);
cmd_send_string(b, data->option);
cmd_send_string(b, data->value);
}
void
cmd_option_recv(struct cmd *self, struct buffer *b)
{
struct cmd_option_data *data;
self->data = data = xmalloc(sizeof *data);
buffer_read(b, data, sizeof *data);
data->target = cmd_recv_string(b);
data->option = cmd_recv_string(b);
data->value = cmd_recv_string(b);
}
void
cmd_option_free(struct cmd *self)
{
struct cmd_option_data *data = self->data;
if (data->target != NULL)
xfree(data->target);
if (data->option != NULL)
xfree(data->option);
if (data->value != NULL)
xfree(data->value);
xfree(data);
}
size_t
cmd_option_print(struct cmd *self, char *buf, size_t len)
{
struct cmd_option_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->flags);
if (off < len && data->target != NULL)
off += cmd_prarg(buf + off, len - off, " -t ", data->target);
if (off < len && data->option != NULL)
off += xsnprintf(buf + off, len - off, " %s", data->option);
if (off < len && data->value != NULL)
off += xsnprintf(buf + off, len - off, " %s", data->value);
return (off);
}
void
cmd_pane_init(struct cmd *self, unused int key)
{
struct cmd_pane_data *data;
self->data = data = xmalloc(sizeof *data);
data->flags = 0;
data->target = NULL;
data->arg = NULL;
data->pane = -1;
}
int
cmd_pane_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_pane_data *data;
int opt, n;
const char *errstr;
/* Don't use the entry version since it may be dependent on key. */
cmd_pane_init(self, 0);
data = self->data;
while ((opt = getopt(argc, argv, CMD_FLAGS "p:t:")) != -1) {
switch (cmd_do_flags(opt, self->entry->flags, &data->flags)) {
case -1:
goto usage;
case 0:
continue;
}
switch (opt) {
case 'p':
if (data->pane == -1) {
n = strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL) {
xasprintf(cause, "pane %s", errstr);
goto error;
}
data->pane = 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, 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_pane_send(struct cmd *self, struct buffer *b)
{
struct cmd_pane_data *data = self->data;
buffer_write(b, data, sizeof *data);
cmd_send_string(b, data->target);
cmd_send_string(b, data->arg);
}
void
cmd_pane_recv(struct cmd *self, struct buffer *b)
{
struct cmd_pane_data *data;
self->data = data = xmalloc(sizeof *data);
buffer_read(b, data, sizeof *data);
data->target = cmd_recv_string(b);
data->arg = cmd_recv_string(b);
}
void
cmd_pane_free(struct cmd *self)
{
struct cmd_pane_data *data = self->data;
if (data->target != NULL)
xfree(data->target);
if (data->arg != NULL)
xfree(data->arg);
xfree(data);
}
size_t
cmd_pane_print(struct cmd *self, char *buf, size_t len)
{
struct cmd_pane_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->flags);
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);
return (off);
}