1 /* $OpenBSD: cmd-set-buffer.c,v 1.29 2020/04/13 08:26:27 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: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 = cmd_get_args(self); 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 (cmd_get_entry(self) == &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 } 124