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Annotation of src/usr.bin/tmux/cmd-switch-client.c, Revision 1.2

1.2     ! nicm        1: /* $OpenBSD: cmd-switch-client.c,v 1.1 2009/06/01 22:58:49 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
                      5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18:
                     19: #include <sys/types.h>
                     20:
                     21: #include <stdlib.h>
                     22: #include <string.h>
                     23:
                     24: #include "tmux.h"
                     25:
                     26: /*
                     27:  * Switch client to a different session.
                     28:  */
                     29:
                     30: int    cmd_switch_client_parse(struct cmd *, int, char **, char **);
                     31: int    cmd_switch_client_exec(struct cmd *, struct cmd_ctx *);
                     32: void   cmd_switch_client_send(struct cmd *, struct buffer *);
                     33: void   cmd_switch_client_recv(struct cmd *, struct buffer *);
                     34: void   cmd_switch_client_free(struct cmd *);
                     35: size_t cmd_switch_client_print(struct cmd *, char *, size_t);
                     36:
                     37: struct cmd_switch_client_data {
                     38:        char    *name;
                     39:        char    *target;
                     40: };
                     41:
                     42: const struct cmd_entry cmd_switch_client_entry = {
                     43:        "switch-client", "switchc",
                     44:        "[-c target-client] [-t target-session]",
1.2     ! nicm       45:        0, 0,
1.1       nicm       46:        NULL,
                     47:        cmd_switch_client_parse,
                     48:        cmd_switch_client_exec,
                     49:        cmd_switch_client_send,
                     50:        cmd_switch_client_recv,
                     51:        cmd_switch_client_free,
                     52:        cmd_switch_client_print
                     53: };
                     54:
                     55: int
                     56: cmd_switch_client_parse(struct cmd *self, int argc, char **argv, char **cause)
                     57: {
                     58:        struct cmd_switch_client_data   *data;
                     59:        int                              opt;
                     60:
                     61:        self->data = data = xmalloc(sizeof *data);
                     62:        data->name = NULL;
                     63:        data->target = NULL;
                     64:
                     65:        while ((opt = getopt(argc, argv, "c:t:")) != -1) {
                     66:                switch (opt) {
                     67:                case 'c':
                     68:                        data->name = xstrdup(optarg);
                     69:                        break;
                     70:                case 't':
                     71:                        data->target = xstrdup(optarg);
                     72:                        break;
                     73:                default:
                     74:                        goto usage;
                     75:                }
                     76:        }
                     77:        argc -= optind;
                     78:        argv += optind;
                     79:        if (argc != 0)
                     80:                goto usage;
                     81:
                     82:        return (0);
                     83:
                     84: usage:
                     85:        xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
                     86:
                     87:        self->entry->free(self);
                     88:        return (-1);
                     89: }
                     90:
                     91: int
                     92: cmd_switch_client_exec(struct cmd *self, struct cmd_ctx *ctx)
                     93: {
                     94:        struct cmd_switch_client_data   *data = self->data;
                     95:        struct client                   *c;
                     96:        struct session                  *s;
                     97:
                     98:        if (data == NULL)
                     99:                return (0);
                    100:
                    101:        if ((c = cmd_find_client(ctx, data->name)) == NULL)
                    102:                return (-1);
                    103:        if ((s = cmd_find_session(ctx, data->target)) == NULL)
                    104:                return (-1);
                    105:
                    106:        c->session = s;
                    107:
                    108:        recalculate_sizes();
                    109:        server_redraw_client(c);
                    110:
                    111:        return (0);
                    112: }
                    113:
                    114: void
                    115: cmd_switch_client_send(struct cmd *self, struct buffer *b)
                    116: {
                    117:        struct cmd_switch_client_data   *data = self->data;
                    118:
                    119:        buffer_write(b, data, sizeof *data);
                    120:        cmd_send_string(b, data->name);
                    121:        cmd_send_string(b, data->target);
                    122: }
                    123:
                    124: void
                    125: cmd_switch_client_recv(struct cmd *self, struct buffer *b)
                    126: {
                    127:        struct cmd_switch_client_data   *data;
                    128:
                    129:        self->data = data = xmalloc(sizeof *data);
                    130:        buffer_read(b, data, sizeof *data);
                    131:        data->name = cmd_recv_string(b);
                    132:        data->target = cmd_recv_string(b);
                    133: }
                    134:
                    135: void
                    136: cmd_switch_client_free(struct cmd *self)
                    137: {
                    138:        struct cmd_switch_client_data   *data = self->data;
                    139:
                    140:        if (data->name != NULL)
                    141:                xfree(data->name);
                    142:        if (data->target != NULL)
                    143:                xfree(data->target);
                    144:        xfree(data);
                    145: }
                    146:
                    147: size_t
                    148: cmd_switch_client_print(struct cmd *self, char *buf, size_t len)
                    149: {
                    150:        struct cmd_switch_client_data   *data = self->data;
                    151:        size_t                           off = 0;
                    152:
                    153:        off += xsnprintf(buf, len, "%s", self->entry->name);
                    154:        if (data == NULL)
                    155:                return (off);
                    156:        if (off < len && data->name != NULL)
                    157:                off += cmd_prarg(buf + off, len - off, " -c ", data->name);
                    158:        if (off < len && data->target != NULL)
                    159:                off += cmd_prarg(buf + off, len - off, " -t ", data->target);
                    160:        return (off);
                    161: }