c/decip4.c: Finally, the ability to turn an IPv4 address into an integer

bash/shttpd

@@ -80,13 +80,14 @@ while true; do
           fi
         elif [[ $line = *": "* ]]; then
           hdr_key=${line%%:*} hdr_key=${hdr_key,,}
-          hdr_val=${line#*: } client_req[hdr-$hdr_key]=$hdr_val
+          client_req[hdr-$hdr_key]=${line#*: }
         elif [[ -z $line ]]; then
           req_host=${client_req[hdr-host]-"$HOSTNAME"}
           ver=${client_req[version]} code=${client_resp[code]}
 
           if [[ ${client_req[error]} = yes ]]; then
             client_req[real-file]=./error.html
+            client_resp[has-payload]=yes
           fi
 
           payload=$(<"${client_req[real-file]}")

c/decip4.c

@@ -0,0 +1,26 @@
+#include <stdint.h>
+#include <stdio.h>
+
+uint32_t numeric_ip4(const char *ip) {
+  uint32_t octets = 0;
+  uint8_t octet = 0;
+  
+  for(; *ip; ip += 1) {
+    if(*ip == '.') {
+      octets = (octets << 8) | octet; 
+      octet = 0;
+    } else {
+      octet = (octet * 10) + (*ip - '0');
+    }
+  }
+  
+  return (octets << 8) | octet;
+}
+
+int main(int argc, char **argv) {
+  for(argv += 1, argc -= 1; *argv; argv += 1, argc -= 1) {
+    printf("%s: %u\n", *argv, numeric_ip4(*argv));
+  }
+
+  return 0;
+}

c/sherver.c

@@ -98,9 +98,6 @@ int sherver_bind_builtin(WORD_LIST *args) {
     return errno;
   }
 
-  int reuse_addr = 1;
-  setsockopt(server_sock, SOL_SOCKET, SO_REUSEADDR, &reuse_addr, sizeof(reuse_addr));
-
   if(listen(server_sock, 0) < 0) {
     int cached = errno;