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tmux 2.4

    1: /* $OpenBSD$ */
    2: 
    3: /*
    4:  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
    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:  * Add, set, append to or delete a paste buffer.
   28:  */
   29: 
   30: static enum cmd_retval	cmd_set_buffer_exec(struct cmd *, struct cmdq_item *);
   31: 
   32: const struct cmd_entry cmd_set_buffer_entry = {
   33: 	.name = "set-buffer",
   34: 	.alias = "setb",
   35: 
   36: 	.args = { "ab:n:", 0, 1 },
   37: 	.usage = "[-a] " CMD_BUFFER_USAGE " [-n new-buffer-name] data",
   38: 
   39: 	.flags = CMD_AFTERHOOK,
   40: 	.exec = cmd_set_buffer_exec
   41: };
   42: 
   43: const struct cmd_entry cmd_delete_buffer_entry = {
   44: 	.name = "delete-buffer",
   45: 	.alias = "deleteb",
   46: 
   47: 	.args = { "b:", 0, 0 },
   48: 	.usage = CMD_BUFFER_USAGE,
   49: 
   50: 	.flags = CMD_AFTERHOOK,
   51: 	.exec = cmd_set_buffer_exec
   52: };
   53: 
   54: static enum cmd_retval
   55: cmd_set_buffer_exec(struct cmd *self, struct cmdq_item *item)
   56: {
   57: 	struct args		*args = self->args;
   58: 	struct paste_buffer	*pb;
   59: 	char			*bufdata, *cause;
   60: 	const char		*bufname, *olddata;
   61: 	size_t			 bufsize, newsize;
   62: 
   63: 	bufname = args_get(args, 'b');
   64: 	if (bufname == NULL)
   65: 		pb = NULL;
   66: 	else
   67: 		pb = paste_get_name(bufname);
   68: 
   69: 	if (self->entry == &cmd_delete_buffer_entry) {
   70: 		if (pb == NULL)
   71: 			pb = paste_get_top(&bufname);
   72: 		if (pb == NULL) {
   73: 			cmdq_error(item, "no buffer");
   74: 			return (CMD_RETURN_ERROR);
   75: 		}
   76: 		paste_free(pb);
   77: 		return (CMD_RETURN_NORMAL);
   78: 	}
   79: 
   80: 	if (args_has(args, 'n')) {
   81: 		if (pb == NULL)
   82: 			pb = paste_get_top(&bufname);
   83: 		if (pb == NULL) {
   84: 			cmdq_error(item, "no buffer");
   85: 			return (CMD_RETURN_ERROR);
   86: 		}
   87: 		if (paste_rename(bufname, args_get(args, 'n'), &cause) != 0) {
   88: 			cmdq_error(item, "%s", cause);
   89: 			free(cause);
   90: 			return (CMD_RETURN_ERROR);
   91: 		}
   92: 		return (CMD_RETURN_NORMAL);
   93: 	}
   94: 
   95: 	if (args->argc != 1) {
   96: 		cmdq_error(item, "no data specified");
   97: 		return (CMD_RETURN_ERROR);
   98: 	}
   99: 	if ((newsize = strlen(args->argv[0])) == 0)
  100: 		return (CMD_RETURN_NORMAL);
  101: 
  102: 	bufsize = 0;
  103: 	bufdata = NULL;
  104: 
  105: 	if (args_has(args, 'a') && pb != NULL) {
  106: 		olddata = paste_buffer_data(pb, &bufsize);
  107: 		bufdata = xmalloc(bufsize);
  108: 		memcpy(bufdata, olddata, bufsize);
  109: 	}
  110: 
  111: 	bufdata = xrealloc(bufdata, bufsize + newsize);
  112: 	memcpy(bufdata + bufsize, args->argv[0], newsize);
  113: 	bufsize += newsize;
  114: 
  115: 	if (paste_set(bufdata, bufsize, bufname, &cause) != 0) {
  116: 		cmdq_error(item, "%s", cause);
  117: 		free(bufdata);
  118: 		free(cause);
  119: 		return (CMD_RETURN_ERROR);
  120: 	}
  121: 
  122: 	return (CMD_RETURN_NORMAL);
  123: }