VePeeeeeeeeee

1 files changed, 73 insertions, 0 deletions

diff --git a/VP/search-script.cpp b/VP/search-script.cpp
new file mode 100644
index 0000000..263bc49
--- /dev/null
+++ b/VP/search-script.cpp
@@ -0,0 +1,73 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include "fileutils.h"
+#include "generic.h"
+
+#define THRESHOLD 2000
+
+int main(int argc, char ** argv) {
+    int h, n, o, i, p, c, pp, b;
+    
+    verbosity = M_INFO;
+    
+    if (argc != 2) {
+	printm(M_BARE, "Usage: search-script <file>\n");
+	exit(-1);
+    }
+    
+    if ((h = open(argv[1], O_RDONLY)) < 0) {
+	printm(M_ERROR, "Error opening file %s\n", argv[1]);
+	exit(-1);
+    }
+    
+    printm(M_STATUS, "Reading informations...\n");
+    
+    read(h, &n, 4);
+    
+    o = n;
+    
+    n -= 4;
+    n /= 8;
+    
+    printm(M_INFO, "Script claims to have %i texts.\n", n);
+    
+    if (n > THRESHOLD) {
+	printm(M_ERROR, "Too much texts to make sense.\n");
+	exit(-1);
+    }
+    
+    printm(M_STATUS, "Reading index.\n");
+    
+    pp = -1;
+    for (i = 0; i < n; i++) {
+	lseek(h, i * 8 + 4, SEEK_SET);
+	read(h, &c, 4);
+	read(h, &p, 4);
+	printm(M_INFO, "Index #%i has pointer %i and counter %i\n", i, p, c);
+	if (pp > p) {
+	    printm(M_ERROR, "Script's text overlapping.\n");
+	    exit(-1);
+	}
+	
+	if (((unsigned int)(p + o)) > filesize(h)) {
+	    printm(M_ERROR, "Text bigger than script.\n");
+	    exit(-1);
+	}
+	
+	lseek(h, p + o - 1, SEEK_SET);
+	b = 0;
+	read(h, &b, 1);
+	
+	if (b) {
+	    printm(M_ERROR, "Byte before the pointer is not 0 (%i = 0x%02x)\n", b, b);
+	    exit(-1);
+	}
+	
+	pp = p;
+    }
+    
+    printm(M_STATUS, "Script seems ok to me.\n");
+    
+    exit(0);
+}