1 /* $OpenBSD: cmd-load-buffer.c,v 1.57 2019/12/12 11:39:56 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org> 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 <errno.h> 22 #include <fcntl.h> 23 #include <stdio.h> 24 #include <stdlib.h> 25 #include <string.h> 26 #include <unistd.h> 27 28 #include "tmux.h" 29 30 /* 31 * Loads a paste buffer from a file. 32 */ 33 34 static enum cmd_retval cmd_load_buffer_exec(struct cmd *, struct cmdq_item *); 35 36 const struct cmd_entry cmd_load_buffer_entry = { 37 .name = "load-buffer", 38 .alias = "loadb", 39 40 .args = { "b:", 1, 1 }, 41 .usage = CMD_BUFFER_USAGE " path", 42 43 .flags = CMD_AFTERHOOK, 44 .exec = cmd_load_buffer_exec 45 }; 46 47 struct cmd_load_buffer_data { 48 struct cmdq_item *item; 49 char *name; 50 }; 51 52 static void 53 cmd_load_buffer_done(__unused struct client *c, const char *path, int error, 54 int closed, struct evbuffer *buffer, void *data) 55 { 56 struct cmd_load_buffer_data *cdata = data; 57 struct cmdq_item *item = cdata->item; 58 void *bdata = EVBUFFER_DATA(buffer); 59 size_t bsize = EVBUFFER_LENGTH(buffer); 60 void *copy; 61 char *cause; 62 63 if (!closed) 64 return; 65 66 if (error != 0) 67 cmdq_error(item, "%s: %s", path, strerror(error)); 68 else if (bsize != 0) { 69 copy = xmalloc(bsize); 70 memcpy(copy, bdata, bsize); 71 if (paste_set(copy, bsize, cdata->name, &cause) != 0) { 72 cmdq_error(item, "%s", cause); 73 free(cause); 74 free(copy); 75 } 76 } 77 cmdq_continue(item); 78 79 free(cdata->name); 80 free(cdata); 81 } 82 83 static enum cmd_retval 84 cmd_load_buffer_exec(struct cmd *self, struct cmdq_item *item) 85 { 86 struct args *args = self->args; 87 struct cmd_load_buffer_data *cdata; 88 struct client *c = cmd_find_client(item, NULL, 1); 89 struct session *s = item->target.s; 90 struct winlink *wl = item->target.wl; 91 struct window_pane *wp = item->target.wp; 92 const char *bufname = args_get(args, 'b'); 93 char *path; 94 95 cdata = xmalloc(sizeof *cdata); 96 cdata->item = item; 97 if (bufname != NULL) 98 cdata->name = xstrdup(bufname); 99 else 100 cdata->name = NULL; 101 102 path = format_single(item, args->argv[0], c, s, wl, wp); 103 file_read(item->client, path, cmd_load_buffer_done, cdata); 104 free(path); 105 106 return (CMD_RETURN_WAIT); 107 } 108