1 files changed, 147 insertions, 0 deletions
diff --git a/src/nukectl.c b/src/nukectl.c
new file mode 100644
index 0000000..8b0897b
--- /dev/null
+++ b/src/nukectl.c
@@ -0,0 +1,147 @@
+/**
+ *  NetNuke - Erases all storage media detected by the system
+ *  Copyright (C) 2009-2010  Joseph Hunkeler <jhunkeler@gmail.com, jhunk@stsci.edu>
+ *
+ *  This file is part of NetNuke.
+ *
+ *  NetNuke is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  NetNuke is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with NetNuke.  If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <pthread.h>
+#include "netnuke.h"
+
+FILE* randfp;
+unsigned int randseed;
+unsigned long long total_written_bytes;
+extern pthread_mutex_t lock_global;
+extern pthread_mutex_t lock_write;
+
+void* wipe(void* device)
+{
+    nndevice_t* d = (nndevice_t*)device;
+    int output_progress = 0;
+    unsigned long int blocks = d->blksz * d->blks;
+    unsigned long long blocks_written = 0;
+    long double percent = 0.0L;
+
+    FILE* fp = fopen(d->path, "w+t");
+    if(fp == NULL)
+    {
+        COM(self, "Unable to open %s: %s\n", d->path, strerror(errno));
+        return (int*)1;
+    }
+    COM(self, "path: %s, block size %d, blocks %llu, total bytes %llu\n",
+           d->path, d->blksz, d->blks, d->sz);
+
+    srand(nngetseed());
+    while(blocks_written < blocks)
+    {
+        pthread_mutex_lock(&lock_global);
+        blocks_written += nnwrite(fp, d->blksz);
+        pthread_mutex_unlock(&lock_global);
+
+        if(output_progress >= 102400)
+        {
+            percent = (long double)((blocks_written / (long double)d->sz) * 100);
+            printf("%s: %llu of %llu (%0.2Lf%%)\n", d->path, blocks_written, d->sz, percent);
+            output_progress = 0;
+        }
+        ++output_progress;
+    }
+    COM(self, "%s complete\n", d->path);
+    pthread_exit(NULL);
+
+    return NULL;
+}
+
+pthread_t nnthread(nndevice_t* device)
+{
+    pthread_t thread;
+    if((pthread_create(&thread, NULL, wipe, device)) != 0)
+    {
+        COM(self, "Failed to create thread %lu\n", thread);
+        return 1;
+    }
+
+    return thread;
+}
+
+int nnwrite(FILE* fp, int bsize)
+{
+    unsigned int bytes_written = 0;
+    char* buffer = randstr(bsize);
+    pthread_mutex_lock(&lock_write);
+    //bytes_written = fwrite(buffer, sizeof(char), bsize, fp);
+    bytes_written += bsize; //temporary testing
+    total_written_bytes += bytes_written;
+    pthread_mutex_unlock(&lock_write);
+
+    free(buffer);
+    return bytes_written;
+}
+
+void nnrandinit()
+{
+    COM(self, "Initializing random seed\n");
+    randfp = fopen("/dev/urandom", "r");
+    if(randfp == NULL)
+    {
+        COM(self, "urandom: %s\n", strerror(errno));
+        return;
+    }
+    srand(nngetseed());
+}
+
+void nnrandfree()
+{
+    COM(self, "Closing urandom\n");
+    fclose(randfp);
+}
+
+unsigned int nngetseed()
+{
+    if((fread(&randseed, 1, sizeof(int), randfp)) > 0)
+    {
+        COM(self, "(urandom) Seed is %lu\n", randseed);
+        return randseed;
+    }
+
+    unsigned int t = time(NULL);
+    COM(self, "(UNIX Epoch) Seed is %lu\n", t);
+    return t;
+}
+
+unsigned int nnrand(int min, int max)
+{
+    return rand()%(min + max);
+}
+
+char* randstr(int size)
+{
+    char* buffer = (char*)malloc(sizeof(char) * size + 1);
+    unsigned char c;
+    int i;
+    for( i = 0 ; i < size ; i++ )
+    {
+         c = nnrand(1, 256);
+         buffer[i] = c;
+    }
+
+    return buffer;
+}