Annotation of src/usr.bin/tmux/cmd-copy-buffer.c, Revision 1.7
1.7 ! nicm 1: /* $OpenBSD: cmd-copy-buffer.c,v 1.6 2009/11/13 19:53:29 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
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:
1.4 nicm 19: #include <sys/types.h>
20:
1.1 nicm 21: #include <stdlib.h>
1.4 nicm 22: #include <string.h>
1.1 nicm 23:
24: #include "tmux.h"
25:
26: /*
27: * Copies a session paste buffer to another session.
28: */
29:
30: int cmd_copy_buffer_parse(struct cmd *, int, char **, char **);
31: int cmd_copy_buffer_exec(struct cmd *, struct cmd_ctx *);
32: void cmd_copy_buffer_free(struct cmd *);
33: void cmd_copy_buffer_init(struct cmd *, int);
34: size_t cmd_copy_buffer_print(struct cmd *, char *, size_t);
35:
36: struct cmd_copy_buffer_data {
37: char *dst_session;
38: char *src_session;
39: int dst_idx;
40: int src_idx;
41: };
42:
43: const struct cmd_entry cmd_copy_buffer_entry = {
44: "copy-buffer", "copyb",
45: "[-a src-index] [-b dst-index] [-s src-session] [-t dst-session]",
1.6 nicm 46: 0, "",
1.1 nicm 47: cmd_copy_buffer_init,
48: cmd_copy_buffer_parse,
49: cmd_copy_buffer_exec,
50: cmd_copy_buffer_free,
51: cmd_copy_buffer_print
52: };
53:
1.7 ! nicm 54: /* ARGSUSED */
1.1 nicm 55: void
56: cmd_copy_buffer_init(struct cmd *self, unused int arg)
57: {
58: struct cmd_copy_buffer_data *data;
59:
60: self->data = data = xmalloc(sizeof *data);
61: data->dst_session = NULL;
62: data->src_session = NULL;
63: data->dst_idx = -1;
64: data->src_idx = -1;
65: }
66:
67: int
68: cmd_copy_buffer_parse(struct cmd *self, int argc, char **argv, char **cause)
69: {
70: struct cmd_copy_buffer_data *data;
71: const char *errstr;
72: int n, opt;
73:
1.5 nicm 74: self->entry->init(self, KEYC_NONE);
1.1 nicm 75: data = self->data;
76:
77: while ((opt = getopt(argc, argv, "a:b:s:t:")) != -1) {
78: switch (opt) {
79: case 'a':
80: if (data->src_idx == -1) {
81: n = strtonum(optarg, 0, INT_MAX, &errstr);
82: if (errstr != NULL) {
83: xasprintf(cause, "buffer %s", errstr);
84: goto error;
85: }
86: data->src_idx = n;
87: }
88: break;
89: case 'b':
90: if (data->dst_idx == -1) {
91: n = strtonum(optarg, 0, INT_MAX, &errstr);
92: if (errstr != NULL) {
93: xasprintf(cause, "buffer %s", errstr);
94: goto error;
95: }
96: data->dst_idx = n;
97: }
98: break;
99: case 's':
100: if (data->src_session == NULL)
101: data->src_session = xstrdup(optarg);
102: break;
103: case 't':
104: if (data->dst_session == NULL)
105: data->dst_session = xstrdup(optarg);
106: break;
107: default:
108: goto usage;
109: }
110: }
111: argc -= optind;
112: argv += optind;
113:
114: return (0);
115:
116: usage:
117: xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
118:
119: error:
120: self->entry->free(self);
121: return (-1);
122: }
123:
124: int
125: cmd_copy_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
126: {
127: struct cmd_copy_buffer_data *data = self->data;
128: struct paste_buffer *pb;
1.4 nicm 129: struct paste_stack *dst_ps, *src_ps;
130: u_char *pdata;
1.1 nicm 131: struct session *dst_session, *src_session;
132: u_int limit;
133:
134: if ((dst_session = cmd_find_session(ctx, data->dst_session)) == NULL ||
135: (src_session = cmd_find_session(ctx, data->src_session)) == NULL)
136: return (-1);
1.4 nicm 137: dst_ps = &dst_session->buffers;
138: src_ps = &src_session->buffers;
1.1 nicm 139:
140: if (data->src_idx == -1) {
1.4 nicm 141: if ((pb = paste_get_top(src_ps)) == NULL) {
1.1 nicm 142: ctx->error(ctx, "no buffers");
143: return (-1);
144: }
145: } else {
1.4 nicm 146: if ((pb = paste_get_index(src_ps, data->src_idx)) == NULL) {
1.1 nicm 147: ctx->error(ctx, "no buffer %d", data->src_idx);
148: return (-1);
149: }
150: }
1.4 nicm 151: limit = options_get_number(&dst_session->options, "buffer-limit");
152:
153: pdata = xmalloc(pb->size);
154: memcpy(pdata, pb->data, pb->size);
1.1 nicm 155:
1.4 nicm 156: if (data->dst_idx == -1)
157: paste_add(dst_ps, pdata, pb->size, limit);
158: else if (paste_replace(dst_ps, data->dst_idx, pdata, pb->size) != 0) {
1.1 nicm 159: ctx->error(ctx, "no buffer %d", data->dst_idx);
1.4 nicm 160: xfree(pdata);
1.1 nicm 161: return (-1);
162: }
163:
164: return (0);
165: }
166:
167: void
168: cmd_copy_buffer_free(struct cmd *self)
169: {
170: struct cmd_copy_buffer_data *data = self->data;
171:
172: if (data->dst_session != NULL)
173: xfree(data->dst_session);
174: if (data->src_session != NULL)
175: xfree(data->src_session);
176: xfree(data);
177: }
178:
179: size_t
180: cmd_copy_buffer_print(struct cmd *self, char *buf, size_t len)
181: {
182: struct cmd_copy_buffer_data *data = self->data;
183: size_t off = 0;
184:
185: off += xsnprintf(buf, len, "%s", self->entry->name);
186: if (data == NULL)
187: return (off);
188: if (off < len && data->src_idx != -1) {
189: off += xsnprintf(buf + off, len - off, " -a %d",
190: data->src_idx);
191: }
192: if (off < len && data->dst_idx != -1) {
193: off += xsnprintf(buf + off, len - off, " -b %d",
194: data->dst_idx);
195: }
196: if (off < len && data->src_session != NULL) {
197: off += cmd_prarg(buf + off, len - off, " -s ",
198: data->src_session);
199: }
200: if (off < len && data->dst_session != NULL) {
201: off += cmd_prarg(buf + off, len - off, " -t ",
202: data->dst_session);
203: }
204: return (off);
205: }
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