xref: /openbsd-src/usr.bin/tmux/cmd-source-file.c (revision f0dcb22a301071b1ca4e920844353f5b9c286966)
1 /* $OpenBSD: cmd-source-file.c,v 1.20 2014/10/20 22:29:25 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 <stdlib.h>
22 
23 #include "tmux.h"
24 
25 /*
26  * Sources a configuration file.
27  */
28 
29 enum cmd_retval	cmd_source_file_exec(struct cmd *, struct cmd_q *);
30 
31 void		cmd_source_file_show(struct cmd_q *);
32 void		cmd_source_file_done(struct cmd_q *);
33 
34 const struct cmd_entry cmd_source_file_entry = {
35 	"source-file", "source",
36 	"", 1, 1,
37 	"path",
38 	0,
39 	cmd_source_file_exec
40 };
41 
42 enum cmd_retval
43 cmd_source_file_exec(struct cmd *self, struct cmd_q *cmdq)
44 {
45 	struct args	*args = self->args;
46 	struct cmd_q	*cmdq1;
47 	char		*cause;
48 
49 	cmdq1 = cmdq_new(NULL);
50 	cmdq1->client = cmdq->client;
51 	cmdq1->emptyfn = cmd_source_file_done;
52 	cmdq1->data = cmdq;
53 
54 	switch (load_cfg(args->argv[0], cmdq1, &cause)) {
55 	case -1:
56 		if (cfg_references == 0) {
57 			cmdq_free(cmdq1);
58 			cmdq_error(cmdq, "%s", cause);
59 			free(cause);
60 			return (CMD_RETURN_ERROR);
61 		}
62 		ARRAY_ADD(&cfg_causes, cause);
63 		/* FALLTHROUGH */
64 	case 0:
65 		if (cfg_references == 0)
66 			cmd_source_file_show(cmdq);
67 		cmdq_free(cmdq1);
68 		return (CMD_RETURN_NORMAL);
69 	}
70 
71 	cmdq->references++;
72 	cfg_references++;
73 
74 	cmdq_continue(cmdq1);
75 	return (CMD_RETURN_WAIT);
76 }
77 
78 void
79 cmd_source_file_show(struct cmd_q *cmdq)
80 {
81 	u_int	 i;
82 	char	*cause;
83 
84 	for (i = 0; i < ARRAY_LENGTH(&cfg_causes); i++) {
85 		cause = ARRAY_ITEM(&cfg_causes, i);
86 		cmdq_print(cmdq, "%s", cause);
87 		free(cause);
88 	}
89 	ARRAY_FREE(&cfg_causes);
90 }
91 
92 void
93 cmd_source_file_done(struct cmd_q *cmdq1)
94 {
95 	struct cmd_q	*cmdq = cmdq1->data;
96 
97 	if (cmdq1->client_exit >= 0)
98 		cmdq->client_exit = cmdq1->client_exit;
99 
100 	cmdq_free(cmdq1);
101 
102 	cfg_references--;
103 
104 	if (cmdq_free(cmdq))
105 		return;
106 
107 	if (cfg_references == 0)
108 		cmd_source_file_show(cmdq);
109 	cmdq_continue(cmdq);
110 }
111