1 /* $OpenBSD: cmd-set-buffer.c,v 1.34 2022/06/09 09:12:55 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, NULL }, 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, NULL }, 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 if (bufname != NULL) { 74 cmdq_error(item, "unknown buffer: %s", bufname); 75 return (CMD_RETURN_ERROR); 76 } 77 pb = paste_get_top(&bufname); 78 } 79 if (pb == NULL) { 80 cmdq_error(item, "no buffer"); 81 return (CMD_RETURN_ERROR); 82 } 83 paste_free(pb); 84 return (CMD_RETURN_NORMAL); 85 } 86 87 if (args_has(args, 'n')) { 88 if (pb == NULL) { 89 if (bufname != NULL) { 90 cmdq_error(item, "unknown buffer: %s", bufname); 91 return (CMD_RETURN_ERROR); 92 } 93 pb = paste_get_top(&bufname); 94 } 95 if (pb == NULL) { 96 cmdq_error(item, "no buffer"); 97 return (CMD_RETURN_ERROR); 98 } 99 if (paste_rename(bufname, args_get(args, 'n'), &cause) != 0) { 100 cmdq_error(item, "%s", cause); 101 free(cause); 102 return (CMD_RETURN_ERROR); 103 } 104 return (CMD_RETURN_NORMAL); 105 } 106 107 if (args_count(args) != 1) { 108 cmdq_error(item, "no data specified"); 109 return (CMD_RETURN_ERROR); 110 } 111 if ((newsize = strlen(args_string(args, 0))) == 0) 112 return (CMD_RETURN_NORMAL); 113 114 bufsize = 0; 115 bufdata = NULL; 116 117 if (args_has(args, 'a') && pb != NULL) { 118 olddata = paste_buffer_data(pb, &bufsize); 119 bufdata = xmalloc(bufsize); 120 memcpy(bufdata, olddata, bufsize); 121 } 122 123 bufdata = xrealloc(bufdata, bufsize + newsize); 124 memcpy(bufdata + bufsize, args_string(args, 0), newsize); 125 bufsize += newsize; 126 127 if (paste_set(bufdata, bufsize, bufname, &cause) != 0) { 128 cmdq_error(item, "%s", cause); 129 free(bufdata); 130 free(cause); 131 return (CMD_RETURN_ERROR); 132 } 133 if (args_has(args, 'w') && tc != NULL) 134 tty_set_selection(&tc->tty, "", bufdata, bufsize); 135 136 return (CMD_RETURN_NORMAL); 137 } 138