From a05876c9b860f1d5fa786746519ccb8b01db79e3 Mon Sep 17 00:00:00 2001
From: epochqwert <epoch@hacking.allowed.org>
Date: Fri, 12 Jun 2015 22:26:31 -0500
Subject: commit of half-finished things.

---
 src/bin/fontdump.c    |  2 +-
 src/bin/iplist2cidr.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++
 src/bin/iprand.c      | 17 +++++++++++
 3 files changed, 97 insertions(+), 1 deletion(-)
 create mode 100644 src/bin/iplist2cidr.c
 create mode 100644 src/bin/iprand.c

(limited to 'src')

diff --git a/src/bin/fontdump.c b/src/bin/fontdump.c
index eb481d0..1ed2b05 100644
--- a/src/bin/fontdump.c
+++ b/src/bin/fontdump.c
@@ -10,7 +10,7 @@ int main(int argc,char *argv[]) {
   read(0,map,height);
   for(j=0;j<height;j++) {
    for(k=7;k>=0;k--) {
-    printf("%c",(map[j]>>k&1)?'#':' ');
+    printf("%c",(map[j]>>k&1)?'#':'.');
    }
    printf("\n");
   }
diff --git a/src/bin/iplist2cidr.c b/src/bin/iplist2cidr.c
new file mode 100644
index 0000000..b3cc62c
--- /dev/null
+++ b/src/bin/iplist2cidr.c
@@ -0,0 +1,79 @@
+#include <stdio.h>
+#include <string.h>
+
+struct net {
+ unsigned int ip;
+ unsigned char cidr;
+};
+
+#define min(a,b) ((a)<(b)?(a):(b))
+#define max(a,b) ((a)>(b)?(a):(b))
+
+int main(int argc,char *argv[]) {
+ short in;
+ int maxcidr;
+ int i=0,j=0,len=0;
+ struct net list[65536];//don't do more than a /16!
+ char ips[64];//why not?
+ char *cidrs;
+ while((in=fgetc(stdin)) != -1) {
+  if(in=='\n') {
+   ips[i]=0;
+   if((cidrs=strchr(ips,'/')) != 0) {
+    *cidrs=0;
+    cidrs++;
+   }
+   list[len].ip=htonl(inet_addr(ips));
+   list[len].cidr=cidrs?atoi(cidrs):32;
+   i=0;
+   cidrs=0;
+   len++;
+   continue;
+  }
+  ips[i]=in;
+  i++;
+  if(i>63) {
+   printf("your have a line that is TOOO long. stick to IPv4.\n");
+   return 0;
+  }
+ }
+ //!!!warning!!! inefficient algo ahead!
+ for(i=0;i<len;i++) {
+  for(j=0;j<len;j++) {
+   if(list[i].cidr == list[j].cidr) {
+    if((list[i].ip ^ list[j].ip) >> (32-list[i].cidr) == 1) {
+     list[i].cidr--;
+     list[j].cidr--;
+     list[i].ip &= (0xffffffff << (32-list[i].cidr));
+     list[j].ip &= (0xffffffff << (32-list[j].cidr));
+     i=-1;//start over!
+     j=-1;//start over!
+     continue;
+    }
+   }
+   if(list[i].ip == list[j].ip && list[i].cidr != list[j].cidr) {
+    list[i].cidr = min(list[i].cidr,list[j].cidr);
+    list[j].cidr = min(list[i].cidr,list[j].cidr);
+    i=-1;//start over!
+    j=-1;//start over!
+    continue;
+   }
+   maxcidr=min(list[i].cidr,list[j].cidr);
+   if(list[i].cidr != list[j].cidr) {
+    if(list[i].ip >> (32-maxcidr) == list[j].ip >> (32-maxcidr) ) {
+     list[i].cidr = min(list[i].cidr,list[j].cidr);
+     list[j].cidr = min(list[i].cidr,list[j].cidr);
+     list[i].ip &= (0xffffffff << (32-list[i].cidr));
+     list[j].ip &= (0xffffffff << (32-list[j].cidr));
+     i=-1;//start over!
+     j=-1;//start over!
+     continue;
+    }
+   }
+  }
+ }
+ for(i=0;i<len;i++) {
+  printf("%d.%d.%d.%d/%d\n",list[i].ip>>24&255,list[i].ip>>16&255,list[i].ip>>8&255,list[i].ip&255,list[i].cidr);
+ }
+ return 0;
+}
diff --git a/src/bin/iprand.c b/src/bin/iprand.c
new file mode 100644
index 0000000..e6b2f83
--- /dev/null
+++ b/src/bin/iprand.c
@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <time.h>
+
+int main(int argc,char *argv[]) {
+ srandom(time(0)+getpid());
+ unsigned int ip;
+ unsigned int net=argc>1?htonl(inet_addr(argv[1])):0x0;
+ unsigned int mask=argc>2?htonl(inet_addr(argv[2])):0x0;
+ unsigned int a=argc>3?atoi(argv[3]):3;
+ net &= mask;
+ for(;a>0;a--) {
+  ip=random();
+  ip &= ~mask;
+  ip |= net;
+  printf("%d.%d.%d.%d\n",ip>>24&255,ip>>16&255,ip>>8&255,ip&255);
+ }
+}
-- 
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