2000-05-15 Jeffrey Altman <jaltman@columbia.edu>

        * Added new source file appdefault.c
          Implements new public functions

               krb5_appdefault_string
               krb5_appdefault_boolean

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@12261 dc483132-0cff-0310-8789-dd5450dbe970

1 files changed, 183 insertions, 0 deletions

diff --git a/src/lib/krb5/krb/appdefault.c b/src/lib/krb5/krb/appdefault.c
new file mode 100644
index 0000000000..17183d89d7
--- /dev/null
+++ b/src/lib/krb5/krb/appdefault.c
@@ -0,0 +1,183 @@
+/*
+ * appdefault - routines designed to be called from applications to
+ *		 handle the [appdefaults] profile section
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <k5-int.h>
+
+
+
+ /*xxx Duplicating this is annoying; try to work on a better way.*/
+static char *conf_yes[] = {
+	"y", "yes", "true", "t", "1", "on",
+	0,
+};
+
+static char *conf_no[] = {
+	"n", "no", "false", "nil", "0", "off",
+	0,
+};
+
+static int conf_boolean(s)
+	char *s;
+{
+	char **p;
+	for(p=conf_yes; *p; p++) {
+		if (!strcasecmp(*p,s))
+			return 1;
+	}
+	for(p=conf_no; *p; p++) {
+		if (!strcasecmp(*p,s))
+		return 0;
+	}
+	/* Default to "no" */
+	return 0;
+}
+
+static krb5_error_code appdefault_get(context, appname, realm, option,
+				ret_value)
+        krb5_context context;
+	const char *appname, *option;
+        const krb5_data *realm;
+	char **ret_value;
+{
+        profile_t profile;
+        const char *names[5];
+	char **nameval = NULL;
+	krb5_error_code retval;
+	const char * realmstr =  realm?realm->data:NULL;
+
+	    if (!context || (context->magic != KV5M_CONTEXT)) 
+	    return KV5M_CONTEXT;
+
+	    profile = context->profile;
+	    
+	/*
+	 * Try number one:
+	 *
+	 * [appdefaults]
+	 *	app = {
+	 *		SOME.REALM = {
+	 *			option = <boolean>
+	 *		}
+	 *	}
+	 */
+
+	names[0] = "appdefaults";
+	names[1] = appname;
+
+	if (realmstr) {
+		names[2] = realmstr;
+		names[3] = option;
+		names[4] = 0;
+		retval = profile_get_values(profile, names, &nameval);
+		if (retval == 0 && nameval && nameval[0]) {
+			*ret_value = strdup(nameval[0]);
+			goto goodbye;
+		}
+	}
+
+	/*
+	 * Try number two:
+	 *
+	 * [appdefaults]
+	 *	app = {
+	 *		option = <boolean>
+	 *      }
+	 */
+
+	names[2] = option;
+	names[3] = 0;
+	retval = profile_get_values(profile, names, &nameval);
+	if (retval == 0 && nameval && nameval[0]) {
+		*ret_value = strdup(nameval[0]);
+		goto goodbye;
+	}
+
+	/*
+	 * Try number three:
+	 *
+	 * [appdefaults]
+	 *	realm = {
+	 *		option = <boolean>
+	 */
+	
+	if (realmstr) {
+		names[1] = realmstr;
+		names[2] = option;
+		names[3] = 0;
+		retval = profile_get_values(profile, names, &nameval);
+		if (retval == 0 && nameval && nameval[0]) {
+			*ret_value = strdup(nameval[0]);
+			goto goodbye;
+		}
+	}
+
+	/*
+	 * Try number four:
+	 *
+	 * [appdefaults]
+	 *	option = <boolean>
+	 */
+
+	names[1] = option;
+	names[2] = 0;
+	retval = profile_get_values(profile, names, &nameval);
+	if (retval == 0 && nameval && nameval[0]) {
+		*ret_value = strdup(nameval[0]);
+	} else {
+		return retval;
+	}
+
+goodbye:
+	if (nameval) {
+		char **cpp;
+		for (cpp = nameval; *cpp; cpp++)
+			free(*cpp);
+		free(nameval);
+	}
+	return 0;
+}
+
+KRB5_DLLIMP void KRB5_CALLCONV 
+krb5_appdefault_boolean(context, appname, realm, option,
+			default_value, ret_value)
+        krb5_context context;
+	const char *appname,  *option;
+        const krb5_data *realm;
+	int default_value;
+	int *ret_value;
+{
+	char *string = NULL;
+	krb5_error_code retval;
+
+	retval = appdefault_get(context, appname, realm, option, &string);
+
+	if (! retval && string) {
+		*ret_value = conf_boolean(string);
+		free(string);
+	} else
+		*ret_value = default_value;
+}
+
+KRB5_DLLIMP void KRB5_CALLCONV 
+krb5_appdefault_string(context, appname, realm, option, default_value,
+		       ret_value)
+     krb5_context context;
+	const char *appname, *option, *default_value;
+	char **ret_value;
+     const krb5_data *realm;
+	{
+	krb5_error_code retval;
+	char *string;
+
+	retval = appdefault_get(context, appname, realm, option, &string);
+
+	if (! retval && string) {
+		*ret_value = string;
+	} else {
+		*ret_value = strdup(default_value);
+	}
+}