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c284ebe0ad
not attached, the server process asks it to open the file, similar to how works for stdin, stdout, stderr. This makes special files like /dev/fd/X work (used by some shells). stdin, stdout and stderr and control mode are now just special cases of the same mechanism. This will also make it easier to use for other commands that read files such as source-file.
115 lines
2.9 KiB
C
115 lines
2.9 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <vis.h>
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#include "tmux.h"
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/*
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* Saves a paste buffer to a file.
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*/
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static enum cmd_retval cmd_save_buffer_exec(struct cmd *, struct cmdq_item *);
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const struct cmd_entry cmd_save_buffer_entry = {
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.name = "save-buffer",
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.alias = "saveb",
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.args = { "ab:", 1, 1 },
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.usage = "[-a] " CMD_BUFFER_USAGE " path",
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.flags = CMD_AFTERHOOK,
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.exec = cmd_save_buffer_exec
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};
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const struct cmd_entry cmd_show_buffer_entry = {
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.name = "show-buffer",
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.alias = "showb",
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.args = { "b:", 0, 0 },
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.usage = CMD_BUFFER_USAGE,
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.flags = CMD_AFTERHOOK,
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.exec = cmd_save_buffer_exec
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};
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static void
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cmd_save_buffer_done(__unused struct client *c, const char *path, int error,
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__unused int closed, __unused struct evbuffer *buffer, void *data)
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{
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struct cmdq_item *item = data;
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if (!closed)
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return;
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if (error != 0)
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cmdq_error(item, "%s: %s", path, strerror(error));
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cmdq_continue(item);
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}
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static enum cmd_retval
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cmd_save_buffer_exec(struct cmd *self, struct cmdq_item *item)
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{
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struct args *args = self->args;
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struct client *c = cmd_find_client(item, NULL, 1);
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struct session *s = item->target.s;
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struct winlink *wl = item->target.wl;
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struct window_pane *wp = item->target.wp;
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struct paste_buffer *pb;
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int flags;
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const char *bufname = args_get(args, 'b'), *bufdata;
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size_t bufsize;
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char *path;
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if (bufname == NULL) {
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if ((pb = paste_get_top(NULL)) == NULL) {
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cmdq_error(item, "no buffers");
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return (CMD_RETURN_ERROR);
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}
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} else {
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pb = paste_get_name(bufname);
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if (pb == NULL) {
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cmdq_error(item, "no buffer %s", bufname);
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return (CMD_RETURN_ERROR);
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}
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}
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bufdata = paste_buffer_data(pb, &bufsize);
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if (self->entry == &cmd_show_buffer_entry)
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path = xstrdup("-");
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else
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path = format_single(item, args->argv[0], c, s, wl, wp);
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if (args_has(self->args, 'a'))
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flags = O_APPEND;
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else
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flags = 0;
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file_write(item->client, path, flags, bufdata, bufsize,
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cmd_save_buffer_done, item);
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free(path);
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return (CMD_RETURN_WAIT);
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}
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