Return to cmd-show-buffer.c CVS log

Up to [local] / src / usr.bin / tmux

Annotation of src/usr.bin/tmux/cmd-show-buffer.c, Revision 1.4

1.4     ! nicm        1: /* $OpenBSD: cmd-show-buffer.c,v 1.3 2009/07/26 12:58:44 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:
1.4     ! nicm       21: #include <string.h>
        !            22: #include <vis.h>
1.1       nicm       23:
                     24: #include "tmux.h"
                     25:
                     26: /*
                     27:  * Show a session paste buffer.
                     28:  */
                     29:
                     30: int    cmd_show_buffer_exec(struct cmd *, struct cmd_ctx *);
                     31:
                     32: const struct cmd_entry cmd_show_buffer_entry = {
                     33:        "show-buffer", "showb",
                     34:        CMD_BUFFER_SESSION_USAGE,
1.2       nicm       35:        0, 0,
1.1       nicm       36:        cmd_buffer_init,
                     37:        cmd_buffer_parse,
                     38:        cmd_show_buffer_exec,
                     39:        cmd_buffer_free,
                     40:        cmd_buffer_print
                     41: };
                     42:
                     43: int
                     44: cmd_show_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
                     45: {
                     46:        struct cmd_buffer_data  *data = self->data;
                     47:        struct session          *s;
                     48:        struct paste_buffer     *pb;
1.4     ! nicm       49:        char                    *in, *buf, *ptr;
        !            50:        size_t                   size, len;
        !            51:        u_int                    width;
1.1       nicm       52:
                     53:        if ((s = cmd_find_session(ctx, data->target)) == NULL)
                     54:                return (-1);
                     55:
                     56:        if (data->buffer == -1) {
                     57:                if ((pb = paste_get_top(&s->buffers)) == NULL) {
                     58:                        ctx->error(ctx, "no buffers");
                     59:                        return (-1);
                     60:                }
                     61:        } else if ((pb = paste_get_index(&s->buffers, data->buffer)) == NULL) {
                     62:                ctx->error(ctx, "no buffer %d", data->buffer);
                     63:                return (-1);
                     64:        }
1.4     ! nicm       65:        if (pb == NULL)
        !            66:                return (0);
1.1       nicm       67:
1.4     ! nicm       68:        size = strlen(pb->data);
        !            69:        if (size > SIZE_MAX / 4 - 1)
        !            70:                size = SIZE_MAX / 4 - 1;
        !            71:        in = xmalloc(size * 4 + 1);
        !            72:        strvisx(in, pb->data, size, VIS_OCTAL|VIS_TAB);
        !            73:
        !            74:        width = s->sx;
        !            75:        if (ctx->cmdclient != NULL)
        !            76:                width = ctx->cmdclient->tty.sx;
        !            77:
        !            78:        buf = xmalloc(width + 1);
        !            79:        len = 0;
        !            80:
        !            81:        ptr = in;
        !            82:        do {
        !            83:                buf[len++] = *ptr++;
        !            84:
        !            85:                if (len == width || buf[len - 1] == '\n') {
        !            86:                        if (buf[len - 1] == '\n')
        !            87:                                len--;
        !            88:                        buf[len] = '\0';
1.1       nicm       89:
1.4     ! nicm       90:                        ctx->print(ctx, "%s", buf);
        !            91:                        len = 0;
        !            92:                }
        !            93:        } while (*ptr != '\0');
        !            94:
        !            95:        if (len != 0) {
1.1       nicm       96:                buf[len] = '\0';
                     97:                ctx->print(ctx, buf);
                     98:        }
1.4     ! nicm       99:        xfree(buf);
        !           100:
        !           101:        xfree(in);
1.1       nicm      102:
                    103:        return (0);
                    104: }