Remove old buffer when renaming rather than complaining, GitHub issue
[tmux-openbsd.git] / cmd-load-buffer.c
blob70fd7ed9fb9683cfc1e6be5c696a9b10bdd914d2
1 /* $OpenBSD$ */
3 /*
4 * Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
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.
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.
19 #include <sys/types.h>
21 #include <errno.h>
22 #include <fcntl.h>
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <string.h>
26 #include <unistd.h>
28 #include "tmux.h"
31 * Loads a paste buffer from a file.
34 static enum cmd_retval cmd_load_buffer_exec(struct cmd *, struct cmdq_item *);
36 const struct cmd_entry cmd_load_buffer_entry = {
37 .name = "load-buffer",
38 .alias = "loadb",
40 .args = { "b:t:w", 1, 1, NULL },
41 .usage = CMD_BUFFER_USAGE " " CMD_TARGET_CLIENT_USAGE " path",
43 .flags = CMD_AFTERHOOK|CMD_CLIENT_TFLAG|CMD_CLIENT_CANFAIL,
44 .exec = cmd_load_buffer_exec
47 struct cmd_load_buffer_data {
48 struct client *client;
49 struct cmdq_item *item;
50 char *name;
53 static void
54 cmd_load_buffer_done(__unused struct client *c, const char *path, int error,
55 int closed, struct evbuffer *buffer, void *data)
57 struct cmd_load_buffer_data *cdata = data;
58 struct client *tc = cdata->client;
59 struct cmdq_item *item = cdata->item;
60 void *bdata = EVBUFFER_DATA(buffer);
61 size_t bsize = EVBUFFER_LENGTH(buffer);
62 void *copy;
63 char *cause;
65 if (!closed)
66 return;
68 if (error != 0)
69 cmdq_error(item, "%s: %s", path, strerror(error));
70 else if (bsize != 0) {
71 copy = xmalloc(bsize);
72 memcpy(copy, bdata, bsize);
73 if (paste_set(copy, bsize, cdata->name, &cause) != 0) {
74 cmdq_error(item, "%s", cause);
75 free(cause);
76 free(copy);
77 } else if (tc != NULL &&
78 tc->session != NULL &&
79 (~tc->flags & CLIENT_DEAD))
80 tty_set_selection(&tc->tty, "", copy, bsize);
81 if (tc != NULL)
82 server_client_unref(tc);
84 cmdq_continue(item);
86 free(cdata->name);
87 free(cdata);
90 static enum cmd_retval
91 cmd_load_buffer_exec(struct cmd *self, struct cmdq_item *item)
93 struct args *args = cmd_get_args(self);
94 struct client *tc = cmdq_get_target_client(item);
95 struct cmd_load_buffer_data *cdata;
96 const char *bufname = args_get(args, 'b');
97 char *path;
99 cdata = xcalloc(1, sizeof *cdata);
100 cdata->item = item;
101 if (bufname != NULL)
102 cdata->name = xstrdup(bufname);
103 if (args_has(args, 'w') && tc != NULL) {
104 cdata->client = tc;
105 cdata->client->references++;
108 path = format_single_from_target(item, args_string(args, 0));
109 file_read(cmdq_get_client(item), path, cmd_load_buffer_done, cdata);
110 free(path);
112 return (CMD_RETURN_WAIT);