Annotation of src/usr.bin/tmux/cmd-load-buffer.c, Revision 1.5
1.5 ! nicm 1: /* $OpenBSD: cmd-load-buffer.c,v 1.4 2009/07/26 12:58:44 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:
19: #include <sys/types.h>
20: #include <sys/stat.h>
21:
22: #include <errno.h>
23: #include <stdlib.h>
24: #include <string.h>
25: #include <unistd.h>
26:
27: #include "tmux.h"
28:
29: /*
30: * Loads a session paste buffer from a file.
31: */
32:
33: int cmd_load_buffer_exec(struct cmd *, struct cmd_ctx *);
34:
35: const struct cmd_entry cmd_load_buffer_entry = {
36: "load-buffer", "loadb",
37: CMD_BUFFER_SESSION_USAGE " path",
1.3 nicm 38: CMD_ARG1, 0,
1.1 nicm 39: cmd_buffer_init,
40: cmd_buffer_parse,
41: cmd_load_buffer_exec,
42: cmd_buffer_free,
43: cmd_buffer_print
44: };
45:
46: int
47: cmd_load_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
48: {
49: struct cmd_buffer_data *data = self->data;
50: struct session *s;
51: struct stat statbuf;
52: FILE *f;
53: char *buf;
54: u_int limit;
55:
56: if ((s = cmd_find_session(ctx, data->target)) == NULL)
57: return (-1);
58:
59: if (stat(data->arg, &statbuf) < 0) {
60: ctx->error(ctx, "%s: %s", data->arg, strerror(errno));
61: return (-1);
62: }
63:
64: if ((f = fopen(data->arg, "rb")) == NULL) {
65: ctx->error(ctx, "%s: %s", data->arg, strerror(errno));
66: return (-1);
67: }
68:
69: /*
70: * We don't want to die due to memory exhaustion, hence xmalloc can't
71: * be used here.
72: */
73: if ((buf = malloc(statbuf.st_size + 1)) == NULL) {
74: ctx->error(ctx, "malloc error: %s", strerror(errno));
1.2 nicm 75: fclose(f);
1.1 nicm 76: return (-1);
77: }
78:
79: if (fread(buf, 1, statbuf.st_size, f) != (size_t) statbuf.st_size) {
80: ctx->error(ctx, "%s: fread error", data->arg);
81: xfree(buf);
82: fclose(f);
83: return (-1);
84: }
85:
86: buf[statbuf.st_size] = '\0';
87: fclose(f);
88:
89: limit = options_get_number(&s->options, "buffer-limit");
90: if (data->buffer == -1) {
91: paste_add(&s->buffers, buf, limit);
92: return (0);
93: }
94: if (paste_replace(&s->buffers, data->buffer, buf) != 0) {
95: ctx->error(ctx, "no buffer %d", data->buffer);
96: xfree(buf);
97: return (-1);
98: }
99:
100: return (0);
101: }