1 /* $OpenBSD: cmd-source-file.c,v 1.53 2021/08/23 11:04:21 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 = { "Fnqv", 1, -1, NULL }, 40 .usage = "[-Fnqv] path ...", 41 42 .flags = 0, 43 .exec = cmd_source_file_exec 44 }; 45 46 struct cmd_source_file_data { 47 struct cmdq_item *item; 48 int flags; 49 50 struct cmdq_item *after; 51 enum cmd_retval retval; 52 53 u_int current; 54 char **files; 55 u_int nfiles; 56 }; 57 58 static enum cmd_retval 59 cmd_source_file_complete_cb(struct cmdq_item *item, __unused void *data) 60 { 61 cfg_print_causes(item); 62 return (CMD_RETURN_NORMAL); 63 } 64 65 static void 66 cmd_source_file_complete(struct client *c, struct cmd_source_file_data *cdata) 67 { 68 struct cmdq_item *new_item; 69 u_int i; 70 71 if (cfg_finished) { 72 if (cdata->retval == CMD_RETURN_ERROR && 73 c != NULL && 74 c->session == NULL) 75 c->retval = 1; 76 new_item = cmdq_get_callback(cmd_source_file_complete_cb, NULL); 77 cmdq_insert_after(cdata->after, new_item); 78 } 79 80 for (i = 0; i < cdata->nfiles; i++) 81 free(cdata->files[i]); 82 free(cdata->files); 83 free(cdata); 84 } 85 86 static void 87 cmd_source_file_done(struct client *c, const char *path, int error, 88 int closed, struct evbuffer *buffer, void *data) 89 { 90 struct cmd_source_file_data *cdata = data; 91 struct cmdq_item *item = cdata->item; 92 void *bdata = EVBUFFER_DATA(buffer); 93 size_t bsize = EVBUFFER_LENGTH(buffer); 94 u_int n; 95 struct cmdq_item *new_item; 96 97 if (!closed) 98 return; 99 100 if (error != 0) 101 cmdq_error(item, "%s: %s", path, strerror(error)); 102 else if (bsize != 0) { 103 if (load_cfg_from_buffer(bdata, bsize, path, c, cdata->after, 104 cdata->flags, &new_item) < 0) 105 cdata->retval = CMD_RETURN_ERROR; 106 else if (new_item != NULL) 107 cdata->after = new_item; 108 } 109 110 n = ++cdata->current; 111 if (n < cdata->nfiles) 112 file_read(c, cdata->files[n], cmd_source_file_done, cdata); 113 else { 114 cmd_source_file_complete(c, cdata); 115 cmdq_continue(item); 116 } 117 } 118 119 static void 120 cmd_source_file_add(struct cmd_source_file_data *cdata, const char *path) 121 { 122 log_debug("%s: %s", __func__, path); 123 cdata->files = xreallocarray(cdata->files, cdata->nfiles + 1, 124 sizeof *cdata->files); 125 cdata->files[cdata->nfiles++] = xstrdup(path); 126 } 127 128 static enum cmd_retval 129 cmd_source_file_exec(struct cmd *self, struct cmdq_item *item) 130 { 131 struct args *args = cmd_get_args(self); 132 struct cmd_source_file_data *cdata; 133 struct client *c = cmdq_get_client(item); 134 enum cmd_retval retval = CMD_RETURN_NORMAL; 135 char *pattern, *cwd, *expanded = NULL; 136 const char *path, *error; 137 glob_t g; 138 int result; 139 u_int i, j; 140 141 cdata = xcalloc(1, sizeof *cdata); 142 cdata->item = item; 143 144 if (args_has(args, 'q')) 145 cdata->flags |= CMD_PARSE_QUIET; 146 if (args_has(args, 'n')) 147 cdata->flags |= CMD_PARSE_PARSEONLY; 148 if (args_has(args, 'v')) 149 cdata->flags |= CMD_PARSE_VERBOSE; 150 151 utf8_stravis(&cwd, server_client_get_cwd(c, NULL), VIS_GLOB); 152 153 for (i = 0; i < args_count(args); i++) { 154 path = args_string(args, i); 155 if (args_has(args, 'F')) { 156 free(expanded); 157 expanded = format_single_from_target(item, path); 158 path = expanded; 159 } 160 if (strcmp(path, "-") == 0) { 161 cmd_source_file_add(cdata, "-"); 162 continue; 163 } 164 165 if (*path == '/') 166 pattern = xstrdup(path); 167 else 168 xasprintf(&pattern, "%s/%s", cwd, path); 169 log_debug("%s: %s", __func__, pattern); 170 171 if ((result = glob(pattern, 0, NULL, &g)) != 0) { 172 if (result != GLOB_NOMATCH || 173 (~cdata->flags & CMD_PARSE_QUIET)) { 174 if (result == GLOB_NOMATCH) 175 error = strerror(ENOENT); 176 else if (result == GLOB_NOSPACE) 177 error = strerror(ENOMEM); 178 else 179 error = strerror(EINVAL); 180 cmdq_error(item, "%s: %s", path, error); 181 retval = CMD_RETURN_ERROR; 182 } 183 globfree(&g); 184 free(pattern); 185 continue; 186 } 187 free(pattern); 188 189 for (j = 0; j < g.gl_pathc; j++) 190 cmd_source_file_add(cdata, g.gl_pathv[j]); 191 globfree(&g); 192 } 193 free(expanded); 194 195 cdata->after = item; 196 cdata->retval = retval; 197 198 if (cdata->nfiles != 0) { 199 file_read(c, cdata->files[0], cmd_source_file_done, cdata); 200 retval = CMD_RETURN_WAIT; 201 } else 202 cmd_source_file_complete(c, cdata); 203 204 free(cwd); 205 return (retval); 206 } 207