1 /* $OpenBSD: cmd-set-buffer.c,v 1.30 2020/09/02 13:46:35 nicm Exp $ */ 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:t:n:w", 0, 1 }, 37 .usage = "[-aw] " CMD_BUFFER_USAGE " [-n new-buffer-name] " 38 CMD_TARGET_CLIENT_USAGE " data", 39 40 .flags = CMD_AFTERHOOK|CMD_CLIENT_TFLAG|CMD_CLIENT_CANFAIL, 41 .exec = cmd_set_buffer_exec 42 }; 43 44 const struct cmd_entry cmd_delete_buffer_entry = { 45 .name = "delete-buffer", 46 .alias = "deleteb", 47 48 .args = { "b:", 0, 0 }, 49 .usage = CMD_BUFFER_USAGE, 50 51 .flags = CMD_AFTERHOOK, 52 .exec = cmd_set_buffer_exec 53 }; 54 55 static enum cmd_retval 56 cmd_set_buffer_exec(struct cmd *self, struct cmdq_item *item) 57 { 58 struct args *args = cmd_get_args(self); 59 struct client *tc = cmdq_get_target_client(item); 60 struct paste_buffer *pb; 61 char *bufdata, *cause; 62 const char *bufname, *olddata; 63 size_t bufsize, newsize; 64 65 bufname = args_get(args, 'b'); 66 if (bufname == NULL) 67 pb = NULL; 68 else 69 pb = paste_get_name(bufname); 70 71 if (cmd_get_entry(self) == &cmd_delete_buffer_entry) { 72 if (pb == NULL) 73 pb = paste_get_top(&bufname); 74 if (pb == NULL) { 75 cmdq_error(item, "no buffer"); 76 return (CMD_RETURN_ERROR); 77 } 78 paste_free(pb); 79 return (CMD_RETURN_NORMAL); 80 } 81 82 if (args_has(args, 'n')) { 83 if (pb == NULL) 84 pb = paste_get_top(&bufname); 85 if (pb == NULL) { 86 cmdq_error(item, "no buffer"); 87 return (CMD_RETURN_ERROR); 88 } 89 if (paste_rename(bufname, args_get(args, 'n'), &cause) != 0) { 90 cmdq_error(item, "%s", cause); 91 free(cause); 92 return (CMD_RETURN_ERROR); 93 } 94 return (CMD_RETURN_NORMAL); 95 } 96 97 if (args->argc != 1) { 98 cmdq_error(item, "no data specified"); 99 return (CMD_RETURN_ERROR); 100 } 101 if ((newsize = strlen(args->argv[0])) == 0) 102 return (CMD_RETURN_NORMAL); 103 104 bufsize = 0; 105 bufdata = NULL; 106 107 if (args_has(args, 'a') && pb != NULL) { 108 olddata = paste_buffer_data(pb, &bufsize); 109 bufdata = xmalloc(bufsize); 110 memcpy(bufdata, olddata, bufsize); 111 } 112 113 bufdata = xrealloc(bufdata, bufsize + newsize); 114 memcpy(bufdata + bufsize, args->argv[0], newsize); 115 bufsize += newsize; 116 117 if (paste_set(bufdata, bufsize, bufname, &cause) != 0) { 118 cmdq_error(item, "%s", cause); 119 free(bufdata); 120 free(cause); 121 return (CMD_RETURN_ERROR); 122 } 123 if (args_has(args, 'w') && tc != NULL) 124 tty_set_selection(&tc->tty, bufdata, bufsize); 125 126 return (CMD_RETURN_NORMAL); 127 } 128