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Annotation of src/usr.bin/tmux/cmd-show-buffer.c, Revision 1.3

1.3     ! nicm        1: /* $OpenBSD: cmd-show-buffer.c,v 1.2 2009/07/13 23:11:35 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
                      5:  *
                      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.
                      9:  *
                     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.
                     17:  */
                     18:
                     19: #include <sys/types.h>
                     20:
                     21: #include <stdlib.h>
                     22:
                     23: #include "tmux.h"
                     24:
                     25: /*
                     26:  * Show a session paste buffer.
                     27:  */
                     28:
                     29: int    cmd_show_buffer_exec(struct cmd *, struct cmd_ctx *);
                     30:
                     31: const struct cmd_entry cmd_show_buffer_entry = {
                     32:        "show-buffer", "showb",
                     33:        CMD_BUFFER_SESSION_USAGE,
1.2       nicm       34:        0, 0,
1.1       nicm       35:        cmd_buffer_init,
                     36:        cmd_buffer_parse,
                     37:        cmd_show_buffer_exec,
                     38:        cmd_buffer_free,
                     39:        cmd_buffer_print
                     40: };
                     41:
                     42: int
                     43: cmd_show_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
                     44: {
                     45:        struct cmd_buffer_data  *data = self->data;
                     46:        struct session          *s;
                     47:        struct paste_buffer     *pb;
                     48:        u_int                    size;
                     49:        char                    *buf, *ptr;
                     50:        size_t                   len;
                     51:
                     52:        if ((s = cmd_find_session(ctx, data->target)) == NULL)
                     53:                return (-1);
                     54:
                     55:        if (data->buffer == -1) {
                     56:                if ((pb = paste_get_top(&s->buffers)) == NULL) {
                     57:                        ctx->error(ctx, "no buffers");
                     58:                        return (-1);
                     59:                }
                     60:        } else if ((pb = paste_get_index(&s->buffers, data->buffer)) == NULL) {
                     61:                ctx->error(ctx, "no buffer %d", data->buffer);
                     62:                return (-1);
                     63:        }
                     64:
                     65:        if (pb != NULL) {
                     66:                size = s->sx;
                     67:
                     68:                buf = xmalloc(size + 1);
                     69:                len = 0;
                     70:
                     71:                ptr = pb->data;
                     72:                do {
                     73:                        buf[len++] = *ptr++;
                     74:
                     75:                        if (len == size) {
                     76:                                buf[len] = '\0';
                     77:                                ctx->print(ctx, buf);
                     78:
                     79:                                len = 0;
                     80:                        }
                     81:                } while (*ptr != '\0');
                     82:                buf[len] = '\0';
                     83:                ctx->print(ctx, buf);
                     84:        }
                     85:
                     86:        return (0);
                     87: }