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/* $OpenBSD: cmd-save-buffer.c,v 1.7 2010/06/28 22:10:42 nicm Exp $ */
/*
* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <string.h>
#include "tmux.h"
/*
* Saves a session paste buffer to a file.
*/
int cmd_save_buffer_exec(struct cmd *, struct cmd_ctx *);
const struct cmd_entry cmd_save_buffer_entry = {
"save-buffer", "saveb",
"[-a] " CMD_BUFFER_SESSION_USAGE " path",
CMD_ARG1, "a",
cmd_buffer_init,
cmd_buffer_parse,
cmd_save_buffer_exec,
cmd_buffer_free,
cmd_buffer_print
};
int
cmd_save_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct cmd_buffer_data *data = self->data;
struct session *s;
struct paste_buffer *pb;
mode_t mask;
FILE *f, *close_f;
if ((s = cmd_find_session(ctx, data->target)) == NULL)
return (-1);
if (data->buffer == -1) {
if ((pb = paste_get_top(&s->buffers)) == NULL) {
ctx->error(ctx, "no buffers");
return (-1);
}
} else {
if ((pb = paste_get_index(&s->buffers, data->buffer)) == NULL) {
ctx->error(ctx, "no buffer %d", data->buffer);
return (-1);
}
}
if (strcmp(data->arg, "-") == 0) {
if (ctx->cmdclient == NULL) {
ctx->error(ctx, "%s: can't write to stdout", data->arg);
return (-1);
}
f = ctx->cmdclient->stdout_file;
close_f = NULL;
} else {
mask = umask(S_IRWXG | S_IRWXO);
if (cmd_check_flag(data->chflags, 'a'))
f = fopen(data->arg, "ab");
else
f = fopen(data->arg, "wb");
umask(mask);
if (f == NULL) {
ctx->error(ctx, "%s: %s", data->arg, strerror(errno));
return (-1);
}
close_f = f;
}
if (fwrite(pb->data, 1, pb->size, f) != pb->size) {
ctx->error(ctx, "%s: fwrite error", data->arg);
fclose(f);
return (-1);
}
if (close_f != NULL)
fclose(close_f);
return (0);
}
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