Adding upstream version 3.4.23.upstream/3.4.23upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 188 insertions, 0 deletions

diff --git a/src/postconf/postconf_match.c b/src/postconf/postconf_match.c
new file mode 100644
index 0000000..53709a4
--- /dev/null
+++ b/src/postconf/postconf_match.c
@@ -0,0 +1,188 @@
+/*++
+/* NAME
+/*	postconf_match 3
+/* SUMMARY
+/*	pattern-matching support
+/* SYNOPSIS
+/*	#include <postconf.h>
+/*
+/*	int	pcf_parse_field_pattern(field_expr)
+/*	char	*field_expr;
+/*
+/*	const char *pcf_str_field_pattern(field_pattern)
+/*	int	field_pattern;
+/*
+/*	int	pcf_is_magic_field_pattern(field_pattern)
+/*	int	field_pattern;
+/*
+/*	ARGV	*pcf_parse_service_pattern(service_expr, min_expr, max_expr)
+/*	const char *service_expr;
+/*	int	min_expr;
+/*	int	max_expr;
+/*
+/*	int	PCF_IS_MAGIC_SERVICE_PATTERN(service_pattern)
+/*	const ARGV *service_pattern;
+/*
+/*	int	PCF_MATCH_SERVICE_PATTERN(service_pattern, service_name,
+/*					service_type)
+/*	const ARGV *service_pattern;
+/*	const char *service_name;
+/*	const char *service_type;
+/*
+/*	const char *pcf_str_field_pattern(field_pattern)
+/*	int	field_pattern;
+/*
+/*	int	PCF_IS_MAGIC_PARAM_PATTERN(param_pattern)
+/*	const char *param_pattern;
+/*
+/*	int	PCF_MATCH_PARAM_PATTERN(param_pattern, param_name)
+/*	const char *param_pattern;
+/*	const char *param_name;
+/* DESCRIPTION
+/*	pcf_parse_service_pattern() takes an expression and splits
+/*	it up on '/' into an array of sub-expressions, This function
+/*	returns null if the input does fewer than "min" or more
+/*	than "max" sub-expressions.
+/*
+/*	PCF_IS_MAGIC_SERVICE_PATTERN() returns non-zero if any of
+/*	the service name or service type sub-expressions contains
+/*	a matching operator (as opposed to string literals that
+/*	only match themselves). This is an unsafe macro that evaluates
+/*	its arguments more than once.
+/*
+/*	PCF_MATCH_SERVICE_PATTERN() matches a service name and type
+/*	from master.cf against the parsed pattern. This is an unsafe
+/*	macro that evaluates its arguments more than once.
+/*
+/*	pcf_parse_field_pattern() converts a field sub-expression,
+/*	and returns the conversion result.
+/*
+/*	pcf_str_field_pattern() converts a result from
+/*	pcf_parse_field_pattern() into string form.
+/*
+/*	pcf_is_magic_field_pattern() returns non-zero if the field
+/*	pattern sub-expression contained a matching operator (as
+/*	opposed to a string literal that only matches itself).
+/*
+/*	PCF_IS_MAGIC_PARAM_PATTERN() returns non-zero if the parameter
+/*	sub-expression contains a matching operator (as opposed to
+/*	a string literal that only matches itself). This is an
+/*	unsafe macro that evaluates its arguments more than once.
+/*
+/*	PCF_MATCH_PARAM_PATTERN() matches a parameter name from
+/*	master.cf against the parsed pattern. This is an unsafe
+/*	macro that evaluates its arguments more than once.
+/*
+/*	Arguments
+/* .IP field_expr
+/*	A field expression.
+/* .IP service_expr
+/*	This argument is split on '/' into its constituent
+/*	sub-expressions.
+/* .IP min_expr
+/*	The minimum number of sub-expressions in service_expr.
+/* .IP max_expr
+/*	The maximum number of sub-expressions in service_expr.
+/* .IP service_name
+/*	Service name from master.cf.
+/* .IP service_type
+/*	Service type from master.cf.
+/* .IP param_pattern
+/*	A parameter name expression.
+/* DIAGNOSTICS
+/*	Fatal errors: invalid syntax.
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <string.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <mymalloc.h>
+#include <vstring.h>
+
+/* Global library. */
+
+#include <split_at.h>
+
+/* Application-specific. */
+
+#include <postconf.h>
+
+ /*
+  * Conversion table. Each PCF_MASTER_NAME_XXX name entry must be stored at
+  * table offset PCF_MASTER_FLD_XXX. So don't mess it up.
+  */
+NAME_CODE pcf_field_name_offset[] = {
+    PCF_MASTER_NAME_SERVICE, PCF_MASTER_FLD_SERVICE,
+    PCF_MASTER_NAME_TYPE, PCF_MASTER_FLD_TYPE,
+    PCF_MASTER_NAME_PRIVATE, PCF_MASTER_FLD_PRIVATE,
+    PCF_MASTER_NAME_UNPRIV, PCF_MASTER_FLD_UNPRIV,
+    PCF_MASTER_NAME_CHROOT, PCF_MASTER_FLD_CHROOT,
+    PCF_MASTER_NAME_WAKEUP, PCF_MASTER_FLD_WAKEUP,
+    PCF_MASTER_NAME_MAXPROC, PCF_MASTER_FLD_MAXPROC,
+    PCF_MASTER_NAME_CMD, PCF_MASTER_FLD_CMD,
+    "*", PCF_MASTER_FLD_WILDC,
+    0, PCF_MASTER_FLD_NONE,
+};
+
+/* pcf_parse_field_pattern - parse service attribute pattern */
+
+int     pcf_parse_field_pattern(const char *field_name)
+{
+    int     field_pattern;
+
+    if ((field_pattern = name_code(pcf_field_name_offset,
+				   NAME_CODE_FLAG_STRICT_CASE,
+				   field_name)) == PCF_MASTER_FLD_NONE)
+	msg_fatal("invalid service attribute name: \"%s\"", field_name);
+    return (field_pattern);
+}
+
+/* pcf_parse_service_pattern - parse service pattern */
+
+ARGV   *pcf_parse_service_pattern(const char *pattern, int min_expr, int max_expr)
+{
+    ARGV   *argv;
+    char  **cpp;
+
+    /*
+     * Work around argv_split() lameness.
+     */
+    if (*pattern == '/')
+	return (0);
+    argv = argv_split(pattern, PCF_NAMESP_SEP_STR);
+    if (argv->argc < min_expr || argv->argc > max_expr) {
+	argv_free(argv);
+	return (0);
+    }
+
+    /*
+     * Allow '*' only all by itself.
+     */
+    for (cpp = argv->argv; *cpp; cpp++) {
+	if (!PCF_MATCH_ANY(*cpp) && strchr(*cpp, PCF_MATCH_WILDC_STR[0]) != 0) {
+	    argv_free(argv);
+	    return (0);
+	}
+    }
+
+    /*
+     * Provide defaults for missing fields.
+     */
+    while (argv->argc < max_expr)
+	argv_add(argv, PCF_MATCH_WILDC_STR, ARGV_END);
+    return (argv);
+}