* IN THE SOFTWARE.
*/
+#include <errno.h>
#include <string.h>
#include "main/macros.h"
#include "debug.h"
return flag;
}
+bool
+comma_separated_list_contains(const char *list, const char *s)
+{
+ assert(list);
+ const size_t len = strlen(s);
+
+ for (unsigned n; n = strcspn(list, ","), *list; list += MAX2(1, n)) {
+ if (n == len && !strncmp(list, s, n))
+ return true;
+ }
+
+ return false;
+}
+
/**
* Reads an environment variable and interprets its value as a boolean.
*
return default_value;
}
}
+
+/**
+ * Reads an environment variable and interprets its value as a unsigned.
+ */
+unsigned
+env_var_as_unsigned(const char *var_name, unsigned default_value)
+{
+ char *str = getenv(var_name);
+ if (str) {
+ char *end;
+ unsigned long result;
+
+ errno = 0;
+ result = strtoul(str, &end, 0);
+ if (errno == 0 && end != str && *end == '\0')
+ return result;
+ }
+ return default_value;
+}