1 /* $OpenBSD: cmd-source-file.c,v 1.49 2021/06/10 07:53:19 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 }, 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 70 if (cfg_finished) { 71 if (cdata->retval == CMD_RETURN_ERROR && 72 c != NULL && 73 c->session == NULL) 74 c->retval = 1; 75 new_item = cmdq_get_callback(cmd_source_file_complete_cb, NULL); 76 cmdq_insert_after(cdata->after, new_item); 77 } 78 79 free(cdata->files); 80 free(cdata); 81 } 82 83 static void 84 cmd_source_file_done(struct client *c, const char *path, int error, 85 int closed, struct evbuffer *buffer, void *data) 86 { 87 struct cmd_source_file_data *cdata = data; 88 struct cmdq_item *item = cdata->item; 89 void *bdata = EVBUFFER_DATA(buffer); 90 size_t bsize = EVBUFFER_LENGTH(buffer); 91 u_int n; 92 struct cmdq_item *new_item; 93 94 if (!closed) 95 return; 96 97 if (error != 0) 98 cmdq_error(item, "%s: %s", path, strerror(error)); 99 else if (bsize != 0) { 100 if (load_cfg_from_buffer(bdata, bsize, path, c, cdata->after, 101 cdata->flags, &new_item) < 0) 102 cdata->retval = CMD_RETURN_ERROR; 103 else if (new_item != NULL) 104 cdata->after = new_item; 105 } 106 107 n = ++cdata->current; 108 if (n < cdata->nfiles) 109 file_read(c, cdata->files[n], cmd_source_file_done, cdata); 110 else { 111 cmd_source_file_complete(c, cdata); 112 cmdq_continue(item); 113 } 114 } 115 116 static void 117 cmd_source_file_add(struct cmd_source_file_data *cdata, const char *path) 118 { 119 log_debug("%s: %s", __func__, path); 120 cdata->files = xreallocarray(cdata->files, cdata->nfiles + 1, 121 sizeof *cdata->files); 122 cdata->files[cdata->nfiles++] = xstrdup(path); 123 } 124 125 static enum cmd_retval 126 cmd_source_file_exec(struct cmd *self, struct cmdq_item *item) 127 { 128 struct args *args = cmd_get_args(self); 129 struct cmd_source_file_data *cdata; 130 struct client *c = cmdq_get_client(item); 131 enum cmd_retval retval = CMD_RETURN_NORMAL; 132 char *pattern, *cwd, *expand = NULL; 133 const char *path, *error; 134 glob_t g; 135 int i, result; 136 u_int j; 137 138 cdata = xcalloc(1, sizeof *cdata); 139 cdata->item = item; 140 141 if (args_has(args, 'q')) 142 cdata->flags |= CMD_PARSE_QUIET; 143 if (args_has(args, 'n')) 144 cdata->flags |= CMD_PARSE_PARSEONLY; 145 if (args_has(args, 'v')) 146 cdata->flags |= CMD_PARSE_VERBOSE; 147 148 utf8_stravis(&cwd, server_client_get_cwd(c, NULL), VIS_GLOB); 149 150 for (i = 0; i < args->argc; i++) { 151 if (args_has(args, 'F')) { 152 free(expand); 153 expand = format_single_from_target(item, args->argv[i]); 154 path = expand; 155 } else 156 path = args->argv[i]; 157 if (strcmp(path, "-") == 0) { 158 cmd_source_file_add(cdata, "-"); 159 continue; 160 } 161 162 if (*path == '/') 163 pattern = xstrdup(path); 164 else 165 xasprintf(&pattern, "%s/%s", cwd, path); 166 log_debug("%s: %s", __func__, pattern); 167 168 if ((result = glob(pattern, 0, NULL, &g)) != 0) { 169 if (result != GLOB_NOMATCH || 170 (~cdata->flags & CMD_PARSE_QUIET)) { 171 if (result == GLOB_NOMATCH) 172 error = strerror(ENOENT); 173 else if (result == GLOB_NOSPACE) 174 error = strerror(ENOMEM); 175 else 176 error = strerror(EINVAL); 177 cmdq_error(item, "%s: %s", path, error); 178 retval = CMD_RETURN_ERROR; 179 } 180 free(pattern); 181 continue; 182 } 183 free(expand); 184 free(pattern); 185 186 for (j = 0; j < g.gl_pathc; j++) 187 cmd_source_file_add(cdata, g.gl_pathv[j]); 188 } 189 190 cdata->after = item; 191 cdata->retval = retval; 192 193 if (cdata->nfiles != 0) { 194 file_read(c, cdata->files[0], cmd_source_file_done, cdata); 195 retval = CMD_RETURN_WAIT; 196 } else 197 cmd_source_file_complete(c, cdata); 198 199 free(cwd); 200 return (retval); 201 } 202