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/* $OpenBSD: cmd-save-buffer.c,v 1.16 2012/07/11 07:10:15 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 <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Saves a paste buffer to a file.
*/
enum cmd_retval cmd_save_buffer_exec(struct cmd *, struct cmd_ctx *);
const struct cmd_entry cmd_save_buffer_entry = {
"save-buffer", "saveb",
"ab:", 1, 1,
"[-a] " CMD_BUFFER_USAGE " path",
0,
NULL,
NULL,
cmd_save_buffer_exec
};
enum cmd_retval
cmd_save_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct args *args = self->args;
struct client *c = ctx->cmdclient;
struct session *s;
struct paste_buffer *pb;
const char *path, *newpath, *wd;
char *cause;
int buffer;
mode_t mask;
FILE *f;
if (!args_has(args, 'b')) {
if ((pb = paste_get_top(&global_buffers)) == NULL) {
ctx->error(ctx, "no buffers");
return (CMD_RETURN_ERROR);
}
} else {
buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
if (cause != NULL) {
ctx->error(ctx, "buffer %s", cause);
free(cause);
return (CMD_RETURN_ERROR);
}
pb = paste_get_index(&global_buffers, buffer);
if (pb == NULL) {
ctx->error(ctx, "no buffer %d", buffer);
return (CMD_RETURN_ERROR);
}
}
path = args->argv[0];
if (strcmp(path, "-") == 0) {
if (c == NULL) {
ctx->error(ctx, "%s: can't write to stdout", path);
return (CMD_RETURN_ERROR);
}
evbuffer_add(c->stdout_data, pb->data, pb->size);
server_push_stdout(c);
} else {
if (c != NULL)
wd = c->cwd;
else if ((s = cmd_current_session(ctx, 0)) != NULL) {
wd = options_get_string(&s->options, "default-path");
if (*wd == '\0')
wd = s->cwd;
} else
wd = NULL;
if (wd != NULL && *wd != '\0') {
newpath = get_full_path(wd, path);
if (newpath != NULL)
path = newpath;
}
mask = umask(S_IRWXG | S_IRWXO);
if (args_has(self->args, 'a'))
f = fopen(path, "ab");
else
f = fopen(path, "wb");
umask(mask);
if (f == NULL) {
ctx->error(ctx, "%s: %s", path, strerror(errno));
return (CMD_RETURN_ERROR);
}
if (fwrite(pb->data, 1, pb->size, f) != pb->size) {
ctx->error(ctx, "%s: fwrite error", path);
fclose(f);
return (CMD_RETURN_ERROR);
}
fclose(f);
}
return (CMD_RETURN_NORMAL);
}
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