From 35876eaab991efc7759802f184cdd54663ea8a94 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicm@openbsd.org>
Date: Mon, 1 Jun 2009 22:58:49 +0000
Subject: Import tmux, a terminal multiplexor allowing (among other things) a
 single terminal to be switched between several different windows and programs
 displayed on one terminal be detached from one terminal and moved to another.

ok deraadt pirofti
---
 cfg.c | 132 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 cfg.c

(limited to 'cfg.c')

diff --git a/cfg.c b/cfg.c
new file mode 100644
index 00000000..e4278e14
--- /dev/null
+++ b/cfg.c
@@ -0,0 +1,132 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "tmux.h"
+
+/*
+ * Config file parser. Pretty quick and simple, each line is parsed into a
+ * argv array and executed as a command.
+ */
+
+char	 *cfg_string(FILE *, char, int);
+void printflike2 cfg_print(struct cmd_ctx *, const char *, ...);
+void printflike2 cfg_error(struct cmd_ctx *, const char *, ...);
+
+char	 *cfg_cause;
+
+void printflike2
+cfg_print(unused struct cmd_ctx *ctx, unused const char *fmt, ...)
+{
+}
+
+void printflike2
+cfg_error(unused struct cmd_ctx *ctx, const char *fmt, ...)
+{
+	va_list	ap;
+
+	va_start(ap, fmt);
+	xvasprintf(&cfg_cause, fmt, ap);
+	va_end(ap);
+}
+
+int
+load_cfg(const char *path, char **cause)
+{
+	FILE   	        *f;
+	u_int		 n;
+	struct stat	 sb;
+	char	        *buf, *line, *ptr;
+	size_t		 len;
+	struct cmd_list	*cmdlist;
+	struct cmd_ctx	 ctx;
+
+	if (stat(path, &sb) != 0) {
+		xasprintf(cause, "%s: %s", path, strerror(errno));
+		return (-1);
+	}
+	if (!S_ISREG(sb.st_mode)) {
+		xasprintf(cause, "%s: not a regular file", path);
+		return (-1);
+	}
+
+	if ((f = fopen(path, "rb")) == NULL) {
+		xasprintf(cause, "%s: %s", path, strerror(errno));
+		return (1);
+	}
+	n = 0;
+
+	line = NULL;
+	while ((buf = fgetln(f, &len))) {
+		if (buf[len - 1] == '\n')
+			buf[len - 1] = '\0';
+		else {
+			line = xrealloc(line, 1, len + 1);
+			memcpy(line, buf, len);
+			line[len] = '\0';
+			buf = line;
+		}
+		n++;
+
+		if (cmd_string_parse(buf, &cmdlist, cause) != 0) {
+			if (*cause == NULL)
+				continue;
+			goto error;
+		}
+		if (cmdlist == NULL)
+			continue;
+		cfg_cause = NULL;
+
+		ctx.msgdata = NULL;
+		ctx.cursession = NULL;
+		ctx.curclient = NULL;
+
+		ctx.error = cfg_error;
+		ctx.print = cfg_print;
+		ctx.info = cfg_print;
+
+		ctx.cmdclient = NULL;
+
+		cfg_cause = NULL;
+		cmd_list_exec(cmdlist, &ctx);
+		cmd_list_free(cmdlist);
+		if (cfg_cause != NULL) {
+			*cause = cfg_cause;
+			goto error;
+		}
+	}
+	if (line != NULL)
+		xfree(line);
+	fclose(f);
+
+	return (0);
+
+error:
+	fclose(f);
+
+	xasprintf(&ptr, "%s: %s at line %u", path, *cause, n);
+	xfree(*cause);
+	*cause = ptr;
+	return (1);
+}
-- 
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