1 /* $OpenBSD: cmd-source-file.c,v 1.54 2023/09/15 06:31:49 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 <errno.h>
22 #include <glob.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <vis.h>
26
27 #include "tmux.h"
28
29 /*
30 * Sources a configuration file.
31 */
32
33 static enum cmd_retval cmd_source_file_exec(struct cmd *, struct cmdq_item *);
34
35 const struct cmd_entry cmd_source_file_entry = {
36 .name = "source-file",
37 .alias = "source",
38
39 .args = { "t:Fnqv", 1, -1, NULL },
40 .usage = "[-Fnqv] " CMD_TARGET_PANE_USAGE " path ...",
41
42 .target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
43
44 .flags = 0,
45 .exec = cmd_source_file_exec
46 };
47
48 struct cmd_source_file_data {
49 struct cmdq_item *item;
50 int flags;
51
52 struct cmdq_item *after;
53 enum cmd_retval retval;
54
55 u_int current;
56 char **files;
57 u_int nfiles;
58 };
59
60 static enum cmd_retval
cmd_source_file_complete_cb(struct cmdq_item * item,__unused void * data)61 cmd_source_file_complete_cb(struct cmdq_item *item, __unused void *data)
62 {
63 cfg_print_causes(item);
64 return (CMD_RETURN_NORMAL);
65 }
66
67 static void
cmd_source_file_complete(struct client * c,struct cmd_source_file_data * cdata)68 cmd_source_file_complete(struct client *c, struct cmd_source_file_data *cdata)
69 {
70 struct cmdq_item *new_item;
71 u_int i;
72
73 if (cfg_finished) {
74 if (cdata->retval == CMD_RETURN_ERROR &&
75 c != NULL &&
76 c->session == NULL)
77 c->retval = 1;
78 new_item = cmdq_get_callback(cmd_source_file_complete_cb, NULL);
79 cmdq_insert_after(cdata->after, new_item);
80 }
81
82 for (i = 0; i < cdata->nfiles; i++)
83 free(cdata->files[i]);
84 free(cdata->files);
85 free(cdata);
86 }
87
88 static void
cmd_source_file_done(struct client * c,const char * path,int error,int closed,struct evbuffer * buffer,void * data)89 cmd_source_file_done(struct client *c, const char *path, int error,
90 int closed, struct evbuffer *buffer, void *data)
91 {
92 struct cmd_source_file_data *cdata = data;
93 struct cmdq_item *item = cdata->item;
94 void *bdata = EVBUFFER_DATA(buffer);
95 size_t bsize = EVBUFFER_LENGTH(buffer);
96 u_int n;
97 struct cmdq_item *new_item;
98 struct cmd_find_state *target = cmdq_get_target(item);
99
100 if (!closed)
101 return;
102
103 if (error != 0)
104 cmdq_error(item, "%s: %s", path, strerror(error));
105 else if (bsize != 0) {
106 if (load_cfg_from_buffer(bdata, bsize, path, c, cdata->after,
107 target, cdata->flags, &new_item) < 0)
108 cdata->retval = CMD_RETURN_ERROR;
109 else if (new_item != NULL)
110 cdata->after = new_item;
111 }
112
113 n = ++cdata->current;
114 if (n < cdata->nfiles)
115 file_read(c, cdata->files[n], cmd_source_file_done, cdata);
116 else {
117 cmd_source_file_complete(c, cdata);
118 cmdq_continue(item);
119 }
120 }
121
122 static void
cmd_source_file_add(struct cmd_source_file_data * cdata,const char * path)123 cmd_source_file_add(struct cmd_source_file_data *cdata, const char *path)
124 {
125 log_debug("%s: %s", __func__, path);
126 cdata->files = xreallocarray(cdata->files, cdata->nfiles + 1,
127 sizeof *cdata->files);
128 cdata->files[cdata->nfiles++] = xstrdup(path);
129 }
130
131 static enum cmd_retval
cmd_source_file_exec(struct cmd * self,struct cmdq_item * item)132 cmd_source_file_exec(struct cmd *self, struct cmdq_item *item)
133 {
134 struct args *args = cmd_get_args(self);
135 struct cmd_source_file_data *cdata;
136 struct client *c = cmdq_get_client(item);
137 enum cmd_retval retval = CMD_RETURN_NORMAL;
138 char *pattern, *cwd, *expanded = NULL;
139 const char *path, *error;
140 glob_t g;
141 int result;
142 u_int i, j;
143
144 cdata = xcalloc(1, sizeof *cdata);
145 cdata->item = item;
146
147 if (args_has(args, 'q'))
148 cdata->flags |= CMD_PARSE_QUIET;
149 if (args_has(args, 'n'))
150 cdata->flags |= CMD_PARSE_PARSEONLY;
151 if (args_has(args, 'v'))
152 cdata->flags |= CMD_PARSE_VERBOSE;
153
154 utf8_stravis(&cwd, server_client_get_cwd(c, NULL), VIS_GLOB);
155
156 for (i = 0; i < args_count(args); i++) {
157 path = args_string(args, i);
158 if (args_has(args, 'F')) {
159 free(expanded);
160 expanded = format_single_from_target(item, path);
161 path = expanded;
162 }
163 if (strcmp(path, "-") == 0) {
164 cmd_source_file_add(cdata, "-");
165 continue;
166 }
167
168 if (*path == '/')
169 pattern = xstrdup(path);
170 else
171 xasprintf(&pattern, "%s/%s", cwd, path);
172 log_debug("%s: %s", __func__, pattern);
173
174 if ((result = glob(pattern, 0, NULL, &g)) != 0) {
175 if (result != GLOB_NOMATCH ||
176 (~cdata->flags & CMD_PARSE_QUIET)) {
177 if (result == GLOB_NOMATCH)
178 error = strerror(ENOENT);
179 else if (result == GLOB_NOSPACE)
180 error = strerror(ENOMEM);
181 else
182 error = strerror(EINVAL);
183 cmdq_error(item, "%s: %s", path, error);
184 retval = CMD_RETURN_ERROR;
185 }
186 globfree(&g);
187 free(pattern);
188 continue;
189 }
190 free(pattern);
191
192 for (j = 0; j < g.gl_pathc; j++)
193 cmd_source_file_add(cdata, g.gl_pathv[j]);
194 globfree(&g);
195 }
196 free(expanded);
197
198 cdata->after = item;
199 cdata->retval = retval;
200
201 if (cdata->nfiles != 0) {
202 file_read(c, cdata->files[0], cmd_source_file_done, cdata);
203 retval = CMD_RETURN_WAIT;
204 } else
205 cmd_source_file_complete(c, cdata);
206
207 free(cwd);
208 return (retval);
209 }
210