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Annotation of src/usr.bin/tmux/cmd-set-buffer.c, Revision 1.16

1.16    ! nicm        1: /* $OpenBSD: cmd-set-buffer.c,v 1.15 2014/03/31 21:39:31 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:
1.11      nicm       21: #include <stdlib.h>
1.4       nicm       22: #include <string.h>
1.1       nicm       23:
                     24: #include "tmux.h"
                     25:
                     26: /*
1.15      nicm       27:  * Add, set, or append to a paste buffer.
1.1       nicm       28:  */
                     29:
1.13      nicm       30: enum cmd_retval         cmd_set_buffer_exec(struct cmd *, struct cmd_q *);
1.1       nicm       31:
                     32: const struct cmd_entry cmd_set_buffer_entry = {
                     33:        "set-buffer", "setb",
1.15      nicm       34:        "ab:", 1, 1,
                     35:        "[-a] " CMD_BUFFER_USAGE " data",
1.8       nicm       36:        0,
                     37:        NULL,
                     38:        cmd_set_buffer_exec
1.1       nicm       39: };
                     40:
1.12      nicm       41: enum cmd_retval
1.13      nicm       42: cmd_set_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
1.1       nicm       43: {
1.15      nicm       44:        struct args             *args = self->args;
                     45:        struct paste_buffer     *pb;
                     46:        u_int                    limit;
                     47:        char                    *pdata, *cause;
                     48:        size_t                   psize, newsize;
                     49:        int                      buffer;
1.1       nicm       50:
1.7       nicm       51:        limit = options_get_number(&global_options, "buffer-limit");
1.4       nicm       52:
1.15      nicm       53:        psize = 0;
                     54:        pdata = NULL;
1.1       nicm       55:
1.15      nicm       56:        pb = NULL;
                     57:        buffer = -1;
                     58:
1.16    ! nicm       59:        if ((newsize = strlen(args->argv[0])) == 0)
        !            60:                return (CMD_RETURN_NORMAL);
        !            61:
1.15      nicm       62:        if (args_has(args, 'b')) {
                     63:                buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
                     64:                if (cause != NULL) {
                     65:                        cmdq_error(cmdq, "buffer %s", cause);
                     66:                        free(cause);
                     67:                        return (CMD_RETURN_ERROR);
                     68:                }
                     69:                pb = paste_get_index(&global_buffers, buffer);
                     70:                if (pb == NULL) {
                     71:                        cmdq_error(cmdq, "no buffer %d", buffer);
                     72:                        return (CMD_RETURN_ERROR);
                     73:                }
                     74:        } else if (args_has(args, 'a')) {
                     75:                pb = paste_get_top(&global_buffers);
                     76:                if (pb != NULL)
                     77:                        buffer = 0;
1.1       nicm       78:        }
1.8       nicm       79:
1.15      nicm       80:        if (args_has(args, 'a') && pb != NULL) {
                     81:                psize = pb->size;
                     82:                pdata = xmalloc(psize);
                     83:                memcpy(pdata, pb->data, psize);
1.8       nicm       84:        }
1.15      nicm       85:
                     86:        pdata = xrealloc(pdata, 1, psize + newsize);
                     87:        memcpy(pdata + psize, args->argv[0], newsize);
                     88:        psize += newsize;
                     89:
                     90:        if (buffer == -1)
                     91:                paste_add(&global_buffers, pdata, psize, limit);
                     92:        else
                     93:                paste_replace(&global_buffers, buffer, pdata, psize);
1.8       nicm       94:
1.12      nicm       95:        return (CMD_RETURN_NORMAL);
1.1       nicm       96: }