Annotation of src/usr.bin/tmux/cfg.c, Revision 1.30
1.30 ! nicm 1: /* $OpenBSD: cfg.c,v 1.29 2013/03/25 10:06:13 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
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: #include <sys/stat.h>
21:
1.21 nicm 22: #include <ctype.h>
1.1 nicm 23: #include <errno.h>
24: #include <stdio.h>
1.15 nicm 25: #include <stdlib.h>
1.1 nicm 26: #include <string.h>
27:
28: #include "tmux.h"
29:
1.28 nicm 30: struct cmd_q *cfg_cmd_q;
1.18 nicm 31: int cfg_finished;
1.28 nicm 32: int cfg_references;
1.18 nicm 33: struct causelist cfg_causes;
1.30 ! nicm 34: struct client *cfg_client;
1.1 nicm 35:
1.28 nicm 36: int
37: load_cfg(const char *path, struct cmd_q *cmdq, char **cause)
1.1 nicm 38: {
1.7 deraadt 39: FILE *f;
1.28 nicm 40: u_int n, found;
41: char *buf, *copy, *line, *cause1, *msg;
1.21 nicm 42: size_t len, oldlen;
1.1 nicm 43: struct cmd_list *cmdlist;
44:
1.29 nicm 45: log_debug("loading %s", path);
1.1 nicm 46: if ((f = fopen(path, "rb")) == NULL) {
1.28 nicm 47: xasprintf(cause, "%s: %s", path, strerror(errno));
48: return (-1);
1.25 nicm 49: }
50:
1.28 nicm 51: n = found = 0;
1.1 nicm 52: line = NULL;
53: while ((buf = fgetln(f, &len))) {
1.21 nicm 54: /* Trim \n. */
1.1 nicm 55: if (buf[len - 1] == '\n')
1.13 nicm 56: len--;
1.24 nicm 57: log_debug("%s: %.*s", path, (int)len, buf);
1.13 nicm 58:
1.20 nicm 59: /* Current line is the continuation of the previous one. */
60: if (line != NULL) {
1.21 nicm 61: oldlen = strlen(line);
62: line = xrealloc(line, 1, oldlen + len + 1);
1.20 nicm 63: } else {
1.21 nicm 64: oldlen = 0;
65: line = xmalloc(len + 1);
1.1 nicm 66: }
1.13 nicm 67:
1.20 nicm 68: /* Append current line to the previous. */
1.21 nicm 69: memcpy(line + oldlen, buf, len);
70: line[oldlen + len] = '\0';
1.1 nicm 71: n++;
72:
1.13 nicm 73: /* Continuation: get next line? */
74: len = strlen(line);
75: if (len > 0 && line[len - 1] == '\\') {
76: line[len - 1] = '\0';
1.20 nicm 77:
1.14 nicm 78: /* Ignore escaped backslash at EOL. */
79: if (len > 1 && line[len - 2] != '\\')
80: continue;
1.13 nicm 81: }
1.21 nicm 82: copy = line;
1.13 nicm 83: line = NULL;
84:
1.21 nicm 85: /* Skip empty lines. */
86: buf = copy;
87: while (isspace((u_char)*buf))
88: buf++;
1.22 nicm 89: if (*buf == '\0') {
90: free(copy);
1.21 nicm 91: continue;
1.22 nicm 92: }
1.21 nicm 93:
1.28 nicm 94: /* Parse and run the command. */
95: if (cmd_string_parse(buf, &cmdlist, path, n, &cause1) != 0) {
1.21 nicm 96: free(copy);
1.28 nicm 97: if (cause1 == NULL)
1.1 nicm 98: continue;
1.28 nicm 99: xasprintf(&msg, "%s:%u: %s", path, n, cause1);
100: ARRAY_ADD(&cfg_causes, msg);
101: free(cause1);
1.9 nicm 102: continue;
1.20 nicm 103: }
1.21 nicm 104: free(copy);
1.28 nicm 105:
1.1 nicm 106: if (cmdlist == NULL)
107: continue;
1.28 nicm 108: cmdq_append(cmdq, cmdlist);
1.1 nicm 109: cmd_list_free(cmdlist);
1.28 nicm 110: found++;
1.1 nicm 111: }
1.28 nicm 112: if (line != NULL)
1.15 nicm 113: free(line);
1.1 nicm 114: fclose(f);
1.25 nicm 115:
1.28 nicm 116: return (found);
117: }
118:
119: void
120: cfg_default_done(unused struct cmd_q *cmdq)
121: {
122: if (--cfg_references != 0)
123: return;
124: cfg_finished = 1;
1.18 nicm 125:
1.28 nicm 126: if (!RB_EMPTY(&sessions))
127: cfg_show_causes(RB_MIN(sessions, &sessions));
1.1 nicm 128:
1.28 nicm 129: cmdq_free(cfg_cmd_q);
130: cfg_cmd_q = NULL;
1.30 ! nicm 131:
! 132: if (cfg_client != NULL) {
! 133: /*
! 134: * The client command queue starts with client_exit set to 1 so
! 135: * only continue if not empty (that is, we have been delayed
! 136: * during configuration parsing for long enough that the
! 137: * MSG_COMMAND has arrived), else the client will exit before
! 138: * the MSG_COMMAND which might tell it not to.
! 139: */
! 140: if (!TAILQ_EMPTY(&cfg_client->cmdq->queue))
! 141: cmdq_continue(cfg_client->cmdq);
! 142: cfg_client->references--;
! 143: cfg_client = NULL;
! 144: }
1.17 nicm 145: }
146:
147: void
1.28 nicm 148: cfg_show_causes(struct session *s)
1.17 nicm 149: {
150: struct window_pane *wp;
151: char *cause;
152: u_int i;
153:
154: if (s == NULL || ARRAY_EMPTY(&cfg_causes))
155: return;
156: wp = s->curw->window->active;
157:
158: window_pane_set_mode(wp, &window_copy_mode);
159: window_copy_init_for_output(wp);
160: for (i = 0; i < ARRAY_LENGTH(&cfg_causes); i++) {
161: cause = ARRAY_ITEM(&cfg_causes, i);
162: window_copy_add(wp, "%s", cause);
163: free(cause);
164: }
165: ARRAY_FREE(&cfg_causes);
1.1 nicm 166: }
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