Annotation of src/usr.bin/tmux/cmd-save-buffer.c, Revision 1.53
1.53 ! nicm 1: /* $OpenBSD: cmd-save-buffer.c,v 1.52 2021/02/11 09:03:38 nicm Exp $ */
1.1 nicm 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>
1.21 nicm 23: #include <fcntl.h>
1.15 nicm 24: #include <stdlib.h>
1.1 nicm 25: #include <string.h>
1.21 nicm 26: #include <unistd.h>
1.18 nicm 27: #include <vis.h>
1.1 nicm 28:
29: #include "tmux.h"
30:
31: /*
1.11 nicm 32: * Saves a paste buffer to a file.
1.1 nicm 33: */
34:
1.40 nicm 35: static enum cmd_retval cmd_save_buffer_exec(struct cmd *, struct cmdq_item *);
1.1 nicm 36:
37: const struct cmd_entry cmd_save_buffer_entry = {
1.36 nicm 38: .name = "save-buffer",
39: .alias = "saveb",
40:
41: .args = { "ab:", 1, 1 },
42: .usage = "[-a] " CMD_BUFFER_USAGE " path",
43:
1.39 nicm 44: .flags = CMD_AFTERHOOK,
1.36 nicm 45: .exec = cmd_save_buffer_exec
1.1 nicm 46: };
47:
1.18 nicm 48: const struct cmd_entry cmd_show_buffer_entry = {
1.36 nicm 49: .name = "show-buffer",
50: .alias = "showb",
51:
52: .args = { "b:", 0, 0 },
53: .usage = CMD_BUFFER_USAGE,
54:
1.39 nicm 55: .flags = CMD_AFTERHOOK,
1.36 nicm 56: .exec = cmd_save_buffer_exec
1.18 nicm 57: };
58:
1.47 nicm 59: static void
60: cmd_save_buffer_done(__unused struct client *c, const char *path, int error,
61: __unused int closed, __unused struct evbuffer *buffer, void *data)
62: {
63: struct cmdq_item *item = data;
64:
65: if (!closed)
66: return;
67:
68: if (error != 0)
69: cmdq_error(item, "%s: %s", path, strerror(error));
70: cmdq_continue(item);
71: }
72:
1.38 nicm 73: static enum cmd_retval
1.40 nicm 74: cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item)
1.1 nicm 75: {
1.48 nicm 76: struct args *args = cmd_get_args(self);
1.51 nicm 77: struct client *c = cmdq_get_client(item);
1.1 nicm 78: struct paste_buffer *pb;
1.47 nicm 79: int flags;
80: const char *bufname = args_get(args, 'b'), *bufdata;
81: size_t bufsize;
1.51 nicm 82: char *path, *tmp;
1.1 nicm 83:
1.47 nicm 84: if (bufname == NULL) {
1.29 nicm 85: if ((pb = paste_get_top(NULL)) == NULL) {
1.40 nicm 86: cmdq_error(item, "no buffers");
1.16 nicm 87: return (CMD_RETURN_ERROR);
1.1 nicm 88: }
89: } else {
1.25 nicm 90: pb = paste_get_name(bufname);
1.9 nicm 91: if (pb == NULL) {
1.40 nicm 92: cmdq_error(item, "no buffer %s", bufname);
1.16 nicm 93: return (CMD_RETURN_ERROR);
1.1 nicm 94: }
95: }
1.29 nicm 96: bufdata = paste_buffer_data(pb, &bufsize);
1.1 nicm 97:
1.51 nicm 98: if (cmd_get_entry(self) == &cmd_show_buffer_entry) {
99: if (c->session != NULL || (c->flags & CLIENT_CONTROL)) {
100: utf8_stravisx(&tmp, bufdata, bufsize,
101: VIS_OCTAL|VIS_CSTYLE|VIS_TAB);
102: cmdq_print(item, "%s", tmp);
103: free(tmp);
104: return (CMD_RETURN_NORMAL);
105: }
1.44 nicm 106: path = xstrdup("-");
1.51 nicm 107: } else
1.53 ! nicm 108: path = format_single_from_target(item, args_string(args, 0));
1.48 nicm 109: if (args_has(args, 'a'))
1.47 nicm 110: flags = O_APPEND;
111: else
1.52 nicm 112: flags = O_TRUNC;
1.49 nicm 113: file_write(cmdq_get_client(item), path, flags, bufdata, bufsize,
1.47 nicm 114: cmd_save_buffer_done, item);
1.45 nicm 115: free(path);
116:
1.47 nicm 117: return (CMD_RETURN_WAIT);
1.1 nicm 118: }