1 /* $OpenBSD: cmd-source-file.c,v 1.44 2019/12/19 09:22:33 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 = { "nqv", 1, -1 }, 40 .usage = "[-nqv] 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 && c->session == NULL) 72 c->retval = 1; 73 new_item = cmdq_get_callback(cmd_source_file_complete_cb, NULL); 74 cmdq_insert_after(cdata->after, new_item); 75 } 76 77 free(cdata->files); 78 free(cdata); 79 } 80 81 static void 82 cmd_source_file_done(struct client *c, const char *path, int error, 83 int closed, struct evbuffer *buffer, void *data) 84 { 85 struct cmd_source_file_data *cdata = data; 86 struct cmdq_item *item = cdata->item; 87 void *bdata = EVBUFFER_DATA(buffer); 88 size_t bsize = EVBUFFER_LENGTH(buffer); 89 u_int n; 90 struct cmdq_item *new_item; 91 92 if (!closed) 93 return; 94 95 if (error != 0) 96 cmdq_error(item, "%s: %s", path, strerror(error)); 97 else if (bsize != 0) { 98 if (load_cfg_from_buffer(bdata, bsize, path, c, cdata->after, 99 cdata->flags, &new_item) < 0) 100 cdata->retval = CMD_RETURN_ERROR; 101 else if (new_item != NULL) 102 cdata->after = new_item; 103 } 104 105 n = ++cdata->current; 106 if (n < cdata->nfiles) 107 file_read(c, cdata->files[n], cmd_source_file_done, cdata); 108 else { 109 cmd_source_file_complete(c, cdata); 110 cmdq_continue(item); 111 } 112 } 113 114 static void 115 cmd_source_file_add(struct cmd_source_file_data *cdata, const char *path) 116 { 117 log_debug("%s: %s", __func__, path); 118 cdata->files = xreallocarray(cdata->files, cdata->nfiles + 1, 119 sizeof *cdata->files); 120 cdata->files[cdata->nfiles++] = xstrdup(path); 121 } 122 123 static enum cmd_retval 124 cmd_source_file_exec(struct cmd *self, struct cmdq_item *item) 125 { 126 struct args *args = self->args; 127 struct cmd_source_file_data *cdata; 128 int flags = 0; 129 struct client *c = item->client; 130 enum cmd_retval retval = CMD_RETURN_NORMAL; 131 char *pattern, *cwd; 132 const char *path, *error; 133 glob_t g; 134 int i, result; 135 u_int j; 136 137 cdata = xcalloc(1, sizeof *cdata); 138 cdata->item = item; 139 140 if (args_has(args, 'q')) 141 cdata->flags |= CMD_PARSE_QUIET; 142 if (args_has(args, 'n')) 143 cdata->flags |= CMD_PARSE_PARSEONLY; 144 if (args_has(args, 'v')) 145 cdata->flags |= CMD_PARSE_VERBOSE; 146 147 utf8_stravis(&cwd, server_client_get_cwd(c, NULL), VIS_GLOB); 148 149 for (i = 0; i < args->argc; i++) { 150 path = args->argv[i]; 151 if (strcmp(path, "-") == 0) { 152 cmd_source_file_add(cdata, "-"); 153 continue; 154 } 155 156 if (*path == '/') 157 pattern = xstrdup(path); 158 else 159 xasprintf(&pattern, "%s/%s", cwd, path); 160 log_debug("%s: %s", __func__, pattern); 161 162 if ((result = glob(pattern, 0, NULL, &g)) != 0) { 163 if (result != GLOB_NOMATCH || 164 (~flags & CMD_PARSE_QUIET)) { 165 if (result == GLOB_NOMATCH) 166 error = strerror(ENOENT); 167 else if (result == GLOB_NOSPACE) 168 error = strerror(ENOMEM); 169 else 170 error = strerror(EINVAL); 171 cmdq_error(item, "%s: %s", path, error); 172 retval = CMD_RETURN_ERROR; 173 } 174 free(pattern); 175 continue; 176 } 177 free(pattern); 178 179 for (j = 0; j < g.gl_pathc; j++) 180 cmd_source_file_add(cdata, g.gl_pathv[j]); 181 } 182 183 cdata->after = item; 184 cdata->retval = retval; 185 186 if (cdata->nfiles != 0) { 187 file_read(c, cdata->files[0], cmd_source_file_done, cdata); 188 retval = CMD_RETURN_WAIT; 189 } else 190 cmd_source_file_complete(c, cdata); 191 192 free(cwd); 193 return (retval); 194 } 195