make fetch less dumb

userspace/net/fetch.c

@@ -1,11 +1,45 @@
 #include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define SIZE 512
+
+struct http_req {
+	char domain[SIZE];
+	char path[SIZE];
+};
+
+void parse_url(char * d, struct http_req * r) {
+	if (strstr(d, "http://") == d) {
+
+		d += strlen("http://");
+
+		char * s = strstr(d, "/");
+		if (!s) {
+			strcpy(r->domain, d);
+			strcpy(r->path, "");
+		} else {
+			*s = 0;
+			s++;
+			strcpy(r->domain, d);
+			strcpy(r->path, s);
+		}
+	} else {
+		fprintf(stderr, "sorry, can't parse %s\n", d);
+		exit(1);
+	}
+}
+
 
 int main(int argc, char * argv[]) {
 
 	if (argc < 2) return 1;
 
+	struct http_req my_req;
+	parse_url(argv[1], &my_req);
+
 	char file[100];
-	sprintf(file, "/dev/net/%s", argv[1]);
+	sprintf(file, "/dev/net/%s", my_req.domain);
 
 	FILE * f = fopen(file,"r+");
 
@@ -15,14 +49,15 @@ int main(int argc, char * argv[]) {
 	}
 
 	fprintf(f,
-		"GET / HTTP/1.0\r\n"
+		"GET /%s HTTP/1.0\r\n"
 		"User-Agent: curl/7.35.0\r\n"
 		"Host: %s\r\n"
 		"Accept: */*\r\n"
-		"\r\n", argv[1]);
+		"\r\n", my_req.path, my_req.domain);
 
 	while (!feof(f)) {
 		char buf[4096];
+		memset(buf, 0, sizeof(buf));
 		fgets(buf, 4096, f);
 		fprintf(stdout, "%s", buf);
 	}