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/* $OpenBSD: cmd-show-buffer.c,v 1.14 2012/07/11 07:10:15 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* 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 <stdlib.h>
#include <vis.h>
#include "tmux.h"
/*
* Show a paste buffer.
*/
enum cmd_retval cmd_show_buffer_exec(struct cmd *, struct cmd_ctx *);
const struct cmd_entry cmd_show_buffer_entry = {
"show-buffer", "showb",
"b:", 0, 0,
CMD_BUFFER_USAGE,
0,
NULL,
NULL,
cmd_show_buffer_exec
};
enum cmd_retval
cmd_show_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct args *args = self->args;
struct session *s;
struct paste_buffer *pb;
int buffer;
char *in, *buf, *ptr, *cause;
size_t size, len;
u_int width;
if ((s = cmd_find_session(ctx, NULL, 0)) == NULL)
return (CMD_RETURN_ERROR);
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);
}
}
size = pb->size;
if (size > SIZE_MAX / 4 - 1)
size = SIZE_MAX / 4 - 1;
in = xmalloc(size * 4 + 1);
strvisx(in, pb->data, size, VIS_OCTAL|VIS_TAB);
width = s->sx;
if (ctx->cmdclient != NULL)
width = ctx->cmdclient->tty.sx;
buf = xmalloc(width + 1);
len = 0;
ptr = in;
do {
buf[len++] = *ptr++;
if (len == width || buf[len - 1] == '\n') {
if (buf[len - 1] == '\n')
len--;
buf[len] = '\0';
ctx->print(ctx, "%s", buf);
len = 0;
}
} while (*ptr != '\0');
if (len != 0) {
buf[len] = '\0';
ctx->print(ctx, "%s", buf);
}
free(buf);
free(in);
return (CMD_RETURN_NORMAL);
}
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