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Annotation of src/usr.bin/tmux/cmd-show-buffer.c, Revision 1.1

1.1     ! nicm        1: /* $OpenBSD$ */
        !             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,
        !            34:        0,
        !            35:        cmd_buffer_init,
        !            36:        cmd_buffer_parse,
        !            37:        cmd_show_buffer_exec,
        !            38:        cmd_buffer_send,
        !            39:        cmd_buffer_recv,
        !            40:        cmd_buffer_free,
        !            41:        cmd_buffer_print
        !            42: };
        !            43:
        !            44: int
        !            45: cmd_show_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
        !            46: {
        !            47:        struct cmd_buffer_data  *data = self->data;
        !            48:        struct session          *s;
        !            49:        struct paste_buffer     *pb;
        !            50:        u_int                    size;
        !            51:        char                    *buf, *ptr;
        !            52:        size_t                   len;
        !            53:
        !            54:        if ((s = cmd_find_session(ctx, data->target)) == NULL)
        !            55:                return (-1);
        !            56:
        !            57:        if (data->buffer == -1) {
        !            58:                if ((pb = paste_get_top(&s->buffers)) == NULL) {
        !            59:                        ctx->error(ctx, "no buffers");
        !            60:                        return (-1);
        !            61:                }
        !            62:        } else if ((pb = paste_get_index(&s->buffers, data->buffer)) == NULL) {
        !            63:                ctx->error(ctx, "no buffer %d", data->buffer);
        !            64:                return (-1);
        !            65:        }
        !            66:
        !            67:        if (pb != NULL) {
        !            68:                size = s->sx;
        !            69:
        !            70:                buf = xmalloc(size + 1);
        !            71:                len = 0;
        !            72:
        !            73:                ptr = pb->data;
        !            74:                do {
        !            75:                        buf[len++] = *ptr++;
        !            76:
        !            77:                        if (len == size) {
        !            78:                                buf[len] = '\0';
        !            79:                                ctx->print(ctx, buf);
        !            80:
        !            81:                                len = 0;
        !            82:                        }
        !            83:                } while (*ptr != '\0');
        !            84:                buf[len] = '\0';
        !            85:                ctx->print(ctx, buf);
        !            86:        }
        !            87:
        !            88:        return (0);
        !            89: }