Annotation of src/usr.bin/tmux/cmd-new-session.c, Revision 1.1
1.1 ! nicm 1: /* $OpenBSD$ */
! 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 "tmux.h"
! 22:
! 23: /*
! 24: * Create a new session and attach to the current terminal unless -d is given.
! 25: */
! 26:
! 27: int cmd_new_session_parse(struct cmd *, int, char **, char **);
! 28: int cmd_new_session_exec(struct cmd *, struct cmd_ctx *);
! 29: void cmd_new_session_send(struct cmd *, struct buffer *);
! 30: void cmd_new_session_recv(struct cmd *, struct buffer *);
! 31: void cmd_new_session_free(struct cmd *);
! 32: void cmd_new_session_init(struct cmd *, int);
! 33: size_t cmd_new_session_print(struct cmd *, char *, size_t);
! 34:
! 35: struct cmd_new_session_data {
! 36: char *newname;
! 37: char *winname;
! 38: char *cmd;
! 39: int flag_detached;
! 40: };
! 41:
! 42: const struct cmd_entry cmd_new_session_entry = {
! 43: "new-session", "new",
! 44: "[-d] [-n window-name] [-s session-name] [command]",
! 45: CMD_STARTSERVER|CMD_CANTNEST,
! 46: cmd_new_session_init,
! 47: cmd_new_session_parse,
! 48: cmd_new_session_exec,
! 49: cmd_new_session_send,
! 50: cmd_new_session_recv,
! 51: cmd_new_session_free,
! 52: cmd_new_session_print
! 53: };
! 54:
! 55: void
! 56: cmd_new_session_init(struct cmd *self, unused int arg)
! 57: {
! 58: struct cmd_new_session_data *data;
! 59:
! 60: self->data = data = xmalloc(sizeof *data);
! 61: data->flag_detached = 0;
! 62: data->newname = NULL;
! 63: data->winname = NULL;
! 64: data->cmd = NULL;
! 65: }
! 66:
! 67: int
! 68: cmd_new_session_parse(struct cmd *self, int argc, char **argv, char **cause)
! 69: {
! 70: struct cmd_new_session_data *data;
! 71: int opt;
! 72:
! 73: self->entry->init(self, 0);
! 74: data = self->data;
! 75:
! 76: while ((opt = getopt(argc, argv, "ds:n:")) != -1) {
! 77: switch (opt) {
! 78: case 'd':
! 79: data->flag_detached = 1;
! 80: break;
! 81: case 's':
! 82: if (data->newname == NULL)
! 83: data->newname = xstrdup(optarg);
! 84: break;
! 85: case 'n':
! 86: if (data->winname == NULL)
! 87: data->winname = xstrdup(optarg);
! 88: break;
! 89: default:
! 90: goto usage;
! 91: }
! 92: }
! 93: argc -= optind;
! 94: argv += optind;
! 95: if (argc != 0 && argc != 1)
! 96: goto usage;
! 97:
! 98: if (argc == 1)
! 99: data->cmd = xstrdup(argv[0]);
! 100:
! 101: return (0);
! 102:
! 103: usage:
! 104: xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
! 105:
! 106: self->entry->free(self);
! 107: return (-1);
! 108: }
! 109:
! 110: int
! 111: cmd_new_session_exec(struct cmd *self, struct cmd_ctx *ctx)
! 112: {
! 113: struct cmd_new_session_data *data = self->data;
! 114: struct client *c = ctx->cmdclient;
! 115: struct session *s;
! 116: char *cmd, *cwd, *cause;
! 117: u_int sx, sy;
! 118:
! 119: if (ctx->curclient != NULL)
! 120: return (0);
! 121:
! 122: if (!data->flag_detached) {
! 123: if (c == NULL) {
! 124: ctx->error(ctx, "no client to attach to");
! 125: return (-1);
! 126: }
! 127: if (!(c->flags & CLIENT_TERMINAL)) {
! 128: ctx->error(ctx, "not a terminal");
! 129: return (-1);
! 130: }
! 131: }
! 132:
! 133: if (data->newname != NULL && session_find(data->newname) != NULL) {
! 134: ctx->error(ctx, "duplicate session: %s", data->newname);
! 135: return (-1);
! 136: }
! 137:
! 138: cmd = data->cmd;
! 139: if (cmd == NULL)
! 140: cmd = options_get_string(&global_options, "default-command");
! 141: if (c == NULL || c->cwd == NULL)
! 142: cwd = options_get_string(&global_options, "default-path");
! 143: else
! 144: cwd = c->cwd;
! 145:
! 146: sx = 80;
! 147: sy = 25;
! 148: if (!data->flag_detached) {
! 149: sx = c->tty.sx;
! 150: sy = c->tty.sy;
! 151: }
! 152:
! 153: if (options_get_number(&global_options, "status")) {
! 154: if (sy == 0)
! 155: sy = 1;
! 156: else
! 157: sy--;
! 158: }
! 159:
! 160: if (!data->flag_detached && tty_open(&c->tty, &cause) != 0) {
! 161: ctx->error(ctx, "open terminal failed: %s", cause);
! 162: xfree(cause);
! 163: return (-1);
! 164: }
! 165:
! 166:
! 167: s = session_create(data->newname, cmd, cwd, sx, sy, &cause);
! 168: if (s == NULL) {
! 169: ctx->error(ctx, "create session failed: %s", cause);
! 170: xfree(cause);
! 171: return (-1);
! 172: }
! 173: if (data->winname != NULL) {
! 174: xfree(s->curw->window->name);
! 175: s->curw->window->name = xstrdup(data->winname);
! 176: options_set_number(
! 177: &s->curw->window->options, "automatic-rename", 0);
! 178: }
! 179:
! 180: if (data->flag_detached) {
! 181: if (c != NULL)
! 182: server_write_client(c, MSG_EXIT, NULL, 0);
! 183: } else {
! 184: c->session = s;
! 185: server_write_client(c, MSG_READY, NULL, 0);
! 186: server_redraw_client(c);
! 187: }
! 188: recalculate_sizes();
! 189:
! 190: return (1);
! 191: }
! 192:
! 193: void
! 194: cmd_new_session_send(struct cmd *self, struct buffer *b)
! 195: {
! 196: struct cmd_new_session_data *data = self->data;
! 197:
! 198: buffer_write(b, data, sizeof *data);
! 199: cmd_send_string(b, data->newname);
! 200: cmd_send_string(b, data->winname);
! 201: cmd_send_string(b, data->cmd);
! 202: }
! 203:
! 204: void
! 205: cmd_new_session_recv(struct cmd *self, struct buffer *b)
! 206: {
! 207: struct cmd_new_session_data *data;
! 208:
! 209: self->data = data = xmalloc(sizeof *data);
! 210: buffer_read(b, data, sizeof *data);
! 211: data->newname = cmd_recv_string(b);
! 212: data->winname = cmd_recv_string(b);
! 213: data->cmd = cmd_recv_string(b);
! 214: }
! 215:
! 216: void
! 217: cmd_new_session_free(struct cmd *self)
! 218: {
! 219: struct cmd_new_session_data *data = self->data;
! 220:
! 221: if (data->newname != NULL)
! 222: xfree(data->newname);
! 223: if (data->winname != NULL)
! 224: xfree(data->winname);
! 225: if (data->cmd != NULL)
! 226: xfree(data->cmd);
! 227: xfree(data);
! 228: }
! 229:
! 230: size_t
! 231: cmd_new_session_print(struct cmd *self, char *buf, size_t len)
! 232: {
! 233: struct cmd_new_session_data *data = self->data;
! 234: size_t off = 0;
! 235:
! 236: off += xsnprintf(buf, len, "%s", self->entry->name);
! 237: if (data == NULL)
! 238: return (off);
! 239: if (off < len && data->flag_detached)
! 240: off += xsnprintf(buf + off, len - off, " -d");
! 241: if (off < len && data->newname != NULL)
! 242: off += cmd_prarg(buf + off, len - off, " -s ", data->newname);
! 243: if (off < len && data->winname != NULL)
! 244: off += cmd_prarg(buf + off, len - off, " -n ", data->winname);
! 245: if (off < len && data->cmd != NULL)
! 246: off += cmd_prarg(buf + off, len - off, " ", data->cmd);
! 247: return (off);
! 248: }
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