xref: /openbsd-src/usr.bin/tmux/cmd-source-file.c (revision dcab69801ca2ee70a610d3fcbf5d65d2a7568915)
1 /* $OpenBSD: cmd-source-file.c,v 1.5 2009/09/21 15:32:06 nicm Exp $ */
2 
3 /*
4  * Copyright (c) 2008 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 
21 #include "tmux.h"
22 
23 /*
24  * Sources a configuration file.
25  */
26 
27 int	cmd_source_file_parse(struct cmd *, int, char **, char **);
28 int	cmd_source_file_exec(struct cmd *, struct cmd_ctx *);
29 void	cmd_source_file_free(struct cmd *);
30 void	cmd_source_file_init(struct cmd *, int);
31 size_t	cmd_source_file_print(struct cmd *, char *, size_t);
32 
33 struct cmd_source_file_data {
34 	char *path;
35 };
36 
37 const struct cmd_entry cmd_source_file_entry = {
38 	"source-file", "source",
39 	"path",
40 	0, 0,
41 	cmd_source_file_init,
42 	cmd_source_file_parse,
43 	cmd_source_file_exec,
44 	cmd_source_file_free,
45 	cmd_source_file_print
46 };
47 
48 void
49 cmd_source_file_init(struct cmd *self, unused int arg)
50 {
51 	struct cmd_source_file_data	*data;
52 
53 	self->data = data = xmalloc(sizeof *data);
54 	data->path = NULL;
55 }
56 
57 int
58 cmd_source_file_parse(struct cmd *self, int argc, char **argv, char **cause)
59 {
60 	struct cmd_source_file_data	*data;
61 	int				 opt;
62 
63 	self->entry->init(self, KEYC_NONE);
64 	data = self->data;
65 
66 	while ((opt = getopt(argc, argv, "")) != -1) {
67 		switch (opt) {
68 		default:
69 			goto usage;
70 		}
71 	}
72 	argc -= optind;
73 	argv += optind;
74 	if (argc != 1)
75 		goto usage;
76 
77 	data->path = xstrdup(argv[0]);
78 	return (0);
79 
80 usage:
81 	xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
82 
83 	self->entry->free(self);
84 	return (-1);
85 }
86 
87 int
88 cmd_source_file_exec(struct cmd *self, struct cmd_ctx *ctx)
89 {
90 	struct cmd_source_file_data	*data = self->data;
91 	char				*cause;
92 
93 	if (load_cfg(data->path, ctx, &cause) != 0) {
94 		ctx->error(ctx, "%s", cause);
95 		xfree(cause);
96 		return (-1);
97 	}
98 
99 	return (0);
100 }
101 
102 void
103 cmd_source_file_free(struct cmd *self)
104 {
105 	struct cmd_source_file_data	*data = self->data;
106 
107 	if (data->path != NULL)
108 		xfree(data->path);
109 	xfree(data);
110 }
111 
112 size_t
113 cmd_source_file_print(struct cmd *self, char *buf, size_t len)
114 {
115 	struct cmd_source_file_data	*data = self->data;
116 	size_t				off = 0;
117 
118 	off += xsnprintf(buf, len, "%s", self->entry->name);
119 	if (data == NULL)
120 		return (off);
121 	if (off < len && data->path != NULL)
122 		off += cmd_prarg(buf + off, len - off, " ", data->path);
123 	return (off);
124 }
125