1 /* $OpenBSD$ */ 2 3 /* 4 * Copyright (c) 2008 Tiago Cunha <me (at) 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 <ctype.h> 22 #include <errno.h> 23 #include <glob.h> 24 #include <stdlib.h> 25 #include <string.h> 26 27 #include "tmux.h" 28 29 /* 30 * Sources a configuration file. 31 */ 32 33 #define CMD_SOURCE_FILE_DEPTH_LIMIT 50 34 static u_int cmd_source_file_depth; 35 36 static enum cmd_retval cmd_source_file_exec(struct cmd *, struct cmdq_item *); 37 38 const struct cmd_entry cmd_source_file_entry = { 39 .name = "source-file", 40 .alias = "source", 41 42 .args = { "t:Fnqv", 1, -1, NULL }, 43 .usage = "[-Fnqv] " CMD_TARGET_PANE_USAGE " path ...", 44 45 .target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL }, 46 47 .flags = 0, 48 .exec = cmd_source_file_exec 49 }; 50 51 struct cmd_source_file_data { 52 struct cmdq_item *item; 53 int flags; 54 55 struct cmdq_item *after; 56 enum cmd_retval retval; 57 58 u_int current; 59 char **files; 60 u_int nfiles; 61 }; 62 63 static enum cmd_retval 64 cmd_source_file_complete_cb(struct cmdq_item *item, __unused void *data) 65 { 66 struct client *c = cmdq_get_client(item); 67 68 if (c == NULL) { 69 cmd_source_file_depth--; 70 log_debug("%s: depth now %u", __func__, cmd_source_file_depth); 71 } else { 72 c->source_file_depth--; 73 log_debug("%s: depth now %u", __func__, c->source_file_depth); 74 } 75 76 cfg_print_causes(item); 77 return (CMD_RETURN_NORMAL); 78 } 79 80 static void 81 cmd_source_file_complete(struct client *c, struct cmd_source_file_data *cdata) 82 { 83 struct cmdq_item *new_item; 84 u_int i; 85 86 if (cfg_finished) { 87 if (cdata->retval == CMD_RETURN_ERROR && 88 c != NULL && 89 c->session == NULL) 90 c->retval = 1; 91 new_item = cmdq_get_callback(cmd_source_file_complete_cb, NULL); 92 cmdq_insert_after(cdata->after, new_item); 93 } 94 95 for (i = 0; i < cdata->nfiles; i++) 96 free(cdata->files[i]); 97 free(cdata->files); 98 free(cdata); 99 } 100 101 static void 102 cmd_source_file_done(struct client *c, const char *path, int error, 103 int closed, struct evbuffer *buffer, void *data) 104 { 105 struct cmd_source_file_data *cdata = data; 106 struct cmdq_item *item = cdata->item; 107 void *bdata = EVBUFFER_DATA(buffer); 108 size_t bsize = EVBUFFER_LENGTH(buffer); 109 u_int n; 110 struct cmdq_item *new_item; 111 struct cmd_find_state *target = cmdq_get_target(item); 112 113 if (!closed) 114 return; 115 116 if (error != 0) 117 cmdq_error(item, "%s: %s", strerror(error), path); 118 else if (bsize != 0) { 119 if (load_cfg_from_buffer(bdata, bsize, path, c, cdata->after, 120 target, cdata->flags, &new_item) < 0) 121 cdata->retval = CMD_RETURN_ERROR; 122 else if (new_item != NULL) 123 cdata->after = new_item; 124 } 125 126 n = ++cdata->current; 127 if (n < cdata->nfiles) 128 file_read(c, cdata->files[n], cmd_source_file_done, cdata); 129 else { 130 cmd_source_file_complete(c, cdata); 131 cmdq_continue(item); 132 } 133 } 134 135 static void 136 cmd_source_file_add(struct cmd_source_file_data *cdata, const char *path) 137 { 138 log_debug("%s: %s", __func__, path); 139 cdata->files = xreallocarray(cdata->files, cdata->nfiles + 1, 140 sizeof *cdata->files); 141 cdata->files[cdata->nfiles++] = xstrdup(path); 142 } 143 144 static char * 145 cmd_source_file_quote_for_glob(const char *path) 146 { 147 char *quoted = xmalloc(2 * strlen(path) + 1), *q = quoted; 148 const char *p = path; 149 150 while (*p != '\0') { 151 if ((u_char)*p < 128 && !isalnum((u_char)*p) && *p != '/') 152 *q++ = '\\'; 153 *q++ = *p++; 154 } 155 *q = '\0'; 156 return (quoted); 157 } 158 159 static enum cmd_retval 160 cmd_source_file_exec(struct cmd *self, struct cmdq_item *item) 161 { 162 struct args *args = cmd_get_args(self); 163 struct cmd_source_file_data *cdata; 164 struct client *c = cmdq_get_client(item); 165 enum cmd_retval retval = CMD_RETURN_NORMAL; 166 char *pattern, *cwd, *expanded = NULL; 167 const char *path, *error; 168 glob_t g; 169 int result, parse_flags; 170 u_int i, j; 171 172 if (c == NULL) { 173 if (cmd_source_file_depth >= CMD_SOURCE_FILE_DEPTH_LIMIT) { 174 cmdq_error(item, "too many nested files"); 175 return (CMD_RETURN_ERROR); 176 } 177 cmd_source_file_depth++; 178 log_debug("%s: depth now %u", __func__, cmd_source_file_depth); 179 } else { 180 if (c->source_file_depth >= CMD_SOURCE_FILE_DEPTH_LIMIT) { 181 cmdq_error(item, "too many nested files"); 182 return (CMD_RETURN_ERROR); 183 } 184 c->source_file_depth++; 185 log_debug("%s: depth now %u", __func__, c->source_file_depth); 186 } 187 188 cdata = xcalloc(1, sizeof *cdata); 189 cdata->item = item; 190 191 if (args_has(args, 'q')) 192 cdata->flags |= CMD_PARSE_QUIET; 193 if (args_has(args, 'n')) 194 cdata->flags |= CMD_PARSE_PARSEONLY; 195 if (c == NULL || ~c->flags & CLIENT_CONTROL) { 196 parse_flags = cmd_get_parse_flags(self); 197 if (args_has(args, 'v') || (parse_flags & CMD_PARSE_VERBOSE)) 198 cdata->flags |= CMD_PARSE_VERBOSE; 199 } 200 201 cwd = cmd_source_file_quote_for_glob(server_client_get_cwd(c, NULL)); 202 203 for (i = 0; i < args_count(args); i++) { 204 path = args_string(args, i); 205 if (args_has(args, 'F')) { 206 free(expanded); 207 expanded = format_single_from_target(item, path); 208 path = expanded; 209 } 210 if (strcmp(path, "-") == 0) { 211 cmd_source_file_add(cdata, "-"); 212 continue; 213 } 214 215 if (*path == '/') 216 pattern = xstrdup(path); 217 else 218 xasprintf(&pattern, "%s/%s", cwd, path); 219 log_debug("%s: %s", __func__, pattern); 220 221 if ((result = glob(pattern, 0, NULL, &g)) != 0) { 222 if (result != GLOB_NOMATCH || 223 (~cdata->flags & CMD_PARSE_QUIET)) { 224 if (result == GLOB_NOMATCH) 225 error = strerror(ENOENT); 226 else if (result == GLOB_NOSPACE) 227 error = strerror(ENOMEM); 228 else 229 error = strerror(EINVAL); 230 cmdq_error(item, "%s: %s", error, path); 231 retval = CMD_RETURN_ERROR; 232 } 233 globfree(&g); 234 free(pattern); 235 continue; 236 } 237 free(pattern); 238 239 for (j = 0; j < g.gl_pathc; j++) 240 cmd_source_file_add(cdata, g.gl_pathv[j]); 241 globfree(&g); 242 } 243 free(expanded); 244 245 cdata->after = item; 246 cdata->retval = retval; 247 248 if (cdata->nfiles != 0) { 249 file_read(c, cdata->files[0], cmd_source_file_done, cdata); 250 retval = CMD_RETURN_WAIT; 251 } else 252 cmd_source_file_complete(c, cdata); 253 254 free(cwd); 255 return (retval); 256 } 257
Indexes created Wed Jun 10 00:26:05 UTC 2026