Annotation of embedaddon/tmux/cmd-set-buffer.c, revision 1.1.1.1
1.1 misho 1: /* $OpenBSD$ */
2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
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: #include <string.h>
23:
24: #include "tmux.h"
25:
26: /*
27: * Add, set, append to or delete a paste buffer.
28: */
29:
30: static enum cmd_retval cmd_set_buffer_exec(struct cmd *, struct cmdq_item *);
31:
32: const struct cmd_entry cmd_set_buffer_entry = {
33: .name = "set-buffer",
34: .alias = "setb",
35:
36: .args = { "ab:n:", 0, 1 },
37: .usage = "[-a] " CMD_BUFFER_USAGE " [-n new-buffer-name] data",
38:
39: .flags = CMD_AFTERHOOK,
40: .exec = cmd_set_buffer_exec
41: };
42:
43: const struct cmd_entry cmd_delete_buffer_entry = {
44: .name = "delete-buffer",
45: .alias = "deleteb",
46:
47: .args = { "b:", 0, 0 },
48: .usage = CMD_BUFFER_USAGE,
49:
50: .flags = CMD_AFTERHOOK,
51: .exec = cmd_set_buffer_exec
52: };
53:
54: static enum cmd_retval
55: cmd_set_buffer_exec(struct cmd *self, struct cmdq_item *item)
56: {
57: struct args *args = self->args;
58: struct paste_buffer *pb;
59: char *bufdata, *cause;
60: const char *bufname, *olddata;
61: size_t bufsize, newsize;
62:
63: bufname = args_get(args, 'b');
64: if (bufname == NULL)
65: pb = NULL;
66: else
67: pb = paste_get_name(bufname);
68:
69: if (self->entry == &cmd_delete_buffer_entry) {
70: if (pb == NULL)
71: pb = paste_get_top(&bufname);
72: if (pb == NULL) {
73: cmdq_error(item, "no buffer");
74: return (CMD_RETURN_ERROR);
75: }
76: paste_free(pb);
77: return (CMD_RETURN_NORMAL);
78: }
79:
80: if (args_has(args, 'n')) {
81: if (pb == NULL)
82: pb = paste_get_top(&bufname);
83: if (pb == NULL) {
84: cmdq_error(item, "no buffer");
85: return (CMD_RETURN_ERROR);
86: }
87: if (paste_rename(bufname, args_get(args, 'n'), &cause) != 0) {
88: cmdq_error(item, "%s", cause);
89: free(cause);
90: return (CMD_RETURN_ERROR);
91: }
92: return (CMD_RETURN_NORMAL);
93: }
94:
95: if (args->argc != 1) {
96: cmdq_error(item, "no data specified");
97: return (CMD_RETURN_ERROR);
98: }
99: if ((newsize = strlen(args->argv[0])) == 0)
100: return (CMD_RETURN_NORMAL);
101:
102: bufsize = 0;
103: bufdata = NULL;
104:
105: if (args_has(args, 'a') && pb != NULL) {
106: olddata = paste_buffer_data(pb, &bufsize);
107: bufdata = xmalloc(bufsize);
108: memcpy(bufdata, olddata, bufsize);
109: }
110:
111: bufdata = xrealloc(bufdata, bufsize + newsize);
112: memcpy(bufdata + bufsize, args->argv[0], newsize);
113: bufsize += newsize;
114:
115: if (paste_set(bufdata, bufsize, bufname, &cause) != 0) {
116: cmdq_error(item, "%s", cause);
117: free(bufdata);
118: free(cause);
119: return (CMD_RETURN_ERROR);
120: }
121:
122: return (CMD_RETURN_NORMAL);
123: }
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