1/* $Id: cmd-show-buffer.c,v 1.1.1.2 2011/08/17 18:40:04 jmmv Exp $ */ 2 3/* 4 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net> 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 "tmux.h" 22 23/* 24 * Show a session paste buffer. 25 */ 26 27int cmd_show_buffer_exec(struct cmd *, struct cmd_ctx *); 28 29const struct cmd_entry cmd_show_buffer_entry = { 30 "show-buffer", "showb", 31 "b:", 0, 0, 32 CMD_BUFFER_USAGE, 33 0, 34 NULL, 35 NULL, 36 cmd_show_buffer_exec 37}; 38 39int 40cmd_show_buffer_exec(struct cmd *self, struct cmd_ctx *ctx) 41{ 42 struct args *args = self->args; 43 struct session *s; 44 struct paste_buffer *pb; 45 int buffer; 46 char *in, *buf, *ptr, *cause; 47 size_t size, len; 48 u_int width; 49 50 if ((s = cmd_find_session(ctx, NULL, 0)) == NULL) 51 return (-1); 52 53 if (!args_has(args, 'b')) { 54 if ((pb = paste_get_top(&global_buffers)) == NULL) { 55 ctx->error(ctx, "no buffers"); 56 return (-1); 57 } 58 } else { 59 buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause); 60 if (cause != NULL) { 61 ctx->error(ctx, "buffer %s", cause); 62 xfree(cause); 63 return (-1); 64 } 65 66 pb = paste_get_index(&global_buffers, buffer); 67 if (pb == NULL) { 68 ctx->error(ctx, "no buffer %d", buffer); 69 return (-1); 70 } 71 } 72 73 size = pb->size; 74 if (size > SIZE_MAX / 4 - 1) 75 size = SIZE_MAX / 4 - 1; 76 in = xmalloc(size * 4 + 1); 77 strvisx(in, pb->data, size, VIS_OCTAL|VIS_TAB); 78 79 width = s->sx; 80 if (ctx->cmdclient != NULL) 81 width = ctx->cmdclient->tty.sx; 82 83 buf = xmalloc(width + 1); 84 len = 0; 85 86 ptr = in; 87 do { 88 buf[len++] = *ptr++; 89 90 if (len == width || buf[len - 1] == '\n') { 91 if (buf[len - 1] == '\n') 92 len--; 93 buf[len] = '\0'; 94 95 ctx->print(ctx, "%s", buf); 96 len = 0; 97 } 98 } while (*ptr != '\0'); 99 100 if (len != 0) { 101 buf[len] = '\0'; 102 ctx->print(ctx, "%s", buf); 103 } 104 xfree(buf); 105 106 xfree(in); 107 108 return (0); 109} 110