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-rw-r--r--refclock.c64
1 files changed, 48 insertions, 16 deletions
diff --git a/refclock.c b/refclock.c
index 8f234f6..42fee4c 100644
--- a/refclock.c
+++ b/refclock.c
@@ -325,25 +325,57 @@ RCL_GetDriverParameter(RCL_Instance instance)
return instance->driver_parameter;
}
-char *
-RCL_GetDriverOption(RCL_Instance instance, char *name)
+static char *
+get_next_driver_option(RCL_Instance instance, char *option)
{
- char *s, *e;
- int n;
+ if (option == NULL)
+ option = instance->driver_parameter;
- s = instance->driver_parameter;
- e = s + instance->driver_parameter_length;
- n = strlen(name);
+ option += strlen(option) + 1;
- while (1) {
- s += strlen(s) + 1;
- if (s >= e)
- break;
- if (!strncmp(name, s, n)) {
- if (s[n] == '=')
- return s + n + 1;
- if (s[n] == '\0')
- return s + n;
+ if (option >= instance->driver_parameter + instance->driver_parameter_length)
+ return NULL;
+
+ return option;
+}
+
+void
+RCL_CheckDriverOptions(RCL_Instance instance, const char **options)
+{
+ char *option;
+ int i, len;
+
+ for (option = get_next_driver_option(instance, NULL);
+ option;
+ option = get_next_driver_option(instance, option)) {
+ for (i = 0; options && options[i]; i++) {
+ len = strlen(options[i]);
+ if (!strncmp(options[i], option, strlen(options[i])) &&
+ (option[len] == '=' || option[len] == '\0'))
+ break;
+ }
+
+ if (!options || !options[i])
+ LOG_FATAL("Invalid refclock driver option %s", option);
+ }
+}
+
+char *
+RCL_GetDriverOption(RCL_Instance instance, char *name)
+{
+ char *option;
+ int len;
+
+ len = strlen(name);
+
+ for (option = get_next_driver_option(instance, NULL);
+ option;
+ option = get_next_driver_option(instance, option)) {
+ if (!strncmp(name, option, len)) {
+ if (option[len] == '=')
+ return option + len + 1;
+ if (option[len] == '\0')
+ return option + len;
}
}