1 /* $OpenBSD$ */ 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 #include <sys/stat.h> 21 22 #include <errno.h> 23 #include <fcntl.h> 24 #include <stdlib.h> 25 #include <string.h> 26 #include <unistd.h> 27 28 #include "tmux.h" 29 30 /* 31 * Saves a paste buffer to a file. 32 */ 33 34 static enum cmd_retval cmd_save_buffer_exec(struct cmd *, struct cmdq_item *); 35 36 const struct cmd_entry cmd_save_buffer_entry = { 37 .name = "save-buffer", 38 .alias = "saveb", 39 40 .args = { "ab:", 1, 1 }, 41 .usage = "[-a] " CMD_BUFFER_USAGE " path", 42 43 .flags = CMD_AFTERHOOK, 44 .exec = cmd_save_buffer_exec 45 }; 46 47 const struct cmd_entry cmd_show_buffer_entry = { 48 .name = "show-buffer", 49 .alias = "showb", 50 51 .args = { "b:", 0, 0 }, 52 .usage = CMD_BUFFER_USAGE, 53 54 .flags = CMD_AFTERHOOK, 55 .exec = cmd_save_buffer_exec 56 }; 57 58 static void 59 cmd_save_buffer_done(__unused struct client *c, const char *path, int error, 60 __unused int closed, __unused struct evbuffer *buffer, void *data) 61 { 62 struct cmdq_item *item = data; 63 64 if (!closed) 65 return; 66 67 if (error != 0) 68 cmdq_error(item, "%s: %s", path, strerror(error)); 69 cmdq_continue(item); 70 } 71 72 static enum cmd_retval 73 cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item) 74 { 75 struct args *args = cmd_get_args(self); 76 struct client *c = cmdq_get_client(item); 77 struct paste_buffer *pb; 78 int flags; 79 const char *bufname = args_get(args, 'b'), *bufdata; 80 size_t bufsize; 81 char *path, *tmp; 82 83 if (bufname == NULL) { 84 if ((pb = paste_get_top(NULL)) == NULL) { 85 cmdq_error(item, "no buffers"); 86 return (CMD_RETURN_ERROR); 87 } 88 } else { 89 pb = paste_get_name(bufname); 90 if (pb == NULL) { 91 cmdq_error(item, "no buffer %s", bufname); 92 return (CMD_RETURN_ERROR); 93 } 94 } 95 bufdata = paste_buffer_data(pb, &bufsize); 96 97 if (cmd_get_entry(self) == &cmd_show_buffer_entry) { 98 if (c->session != NULL || (c->flags & CLIENT_CONTROL)) { 99 utf8_stravisx(&tmp, bufdata, bufsize, 100 VIS_OCTAL|VIS_CSTYLE|VIS_TAB); 101 cmdq_print(item, "%s", tmp); 102 free(tmp); 103 return (CMD_RETURN_NORMAL); 104 } 105 path = xstrdup("-"); 106 } else 107 path = format_single_from_target(item, args->argv[0]); 108 if (args_has(args, 'a')) 109 flags = O_APPEND; 110 else 111 flags = O_TRUNC; 112 file_write(cmdq_get_client(item), path, flags, bufdata, bufsize, 113 cmd_save_buffer_done, item); 114 free(path); 115 116 return (CMD_RETURN_WAIT); 117 } 118