1 files changed, 29 insertions, 0 deletions

diff --git a/query.c b/query.c
new file mode 100644
index 0000000..09e7578
--- /dev/null
+++ b/query.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "query.h"
+
+void
+setqs()
+{
+	qs = getenv("QUERY_STRING");
+	if(!qs){
+		fprintf(stderr, "no QUERY_STRING\n");
+		exit(1);
+	}
+}
+
+char *
+query(char *key)
+{
+	char *w;
+	int n;
+	
+	for(w = strtok(qs, "&"); w; w = strtok(NULL, "&")){
+		n = strcspn(w, "=");
+		if(strncmp(w, key, n) == 0)
+			return w + n + (w[n] == '=');
+	}
+	
+	return NULL;
+}
\ No newline at end of file