reversed c files

level1.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <string.h>
+
+
+int main (void)
+{
+    int cmp;
+    char *str = "__stack_check";
+    char buffer[100];
+
+    printf("Please enter key: ");
+    scanf("%99s", buffer);
+
+    cmp = strcmp(buffer, str);
+    if (cmp == 0) 
+        printf("Good job.\n");
+    else 
+       printf("Nope.\n");
+    return (0);
+}

level2.c

@@ -0,0 +1,51 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void no()
+{
+    printf("Nope.\n");
+    exit(1);
+}
+
+void yes()
+{
+    printf("Good job.\n");
+    exit(0);
+}
+
+int main(void)
+{
+    char input[24];
+    char output[9];
+    char char_ascii_in_chars[4];
+    int char_ascii = 0;
+    int inp_idx = 2;
+    int out_idx = 1;
+    int len = 0;
+
+    printf("please enter key: ");
+    if (scanf("%23s", input) != 1)
+        no();
+    if (input[0] != '0' || input[1] != '0')
+        no();
+    fflush(stdin);
+
+    memset(output, 0, 9);
+    output[0] = 'd';
+    char_ascii_in_chars[3] = '\0';
+    while (strlen(output) < 8 && inp_idx < strlen(input))
+    {
+        char_ascii_in_chars[0] = input[inp_idx++];
+        char_ascii_in_chars[1] = input[inp_idx++];
+        char_ascii_in_chars[2] = input[inp_idx++];
+        char_ascii = atoi(char_ascii_in_chars);
+        output[out_idx++] = (char)char_ascii;
+    }
+    output[out_idx] = '\0';
+
+    if (strcmp(output, "delabere") == 0)
+        yes();
+    else
+        no();
+}

level3.c

@@ -0,0 +1,51 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+void no()
+{
+	printf("Nope.\n");
+	exit(1);
+}
+
+void yes()
+{
+	printf("Good job.\n");
+	exit(0);
+}
+
+int main(void)
+{
+	char input[31];
+	char output[9];
+	char char_ascii_in_chars[4];
+	int char_ascii = 0;
+	int inp_idx = 2;
+	int out_idx = 1;
+	int len = 0;
+
+	printf("please enter key: ");
+	if (scanf("%30s", input) != 1)
+		no();
+	if (input[0] != '4' || input[1] != '2')
+		no();
+	fflush(stdin);
+
+	memset(output, 0, 9);
+	output[0] = '*';
+	char_ascii_in_chars[3] = '\0';
+	while (strlen(output) < 8 && inp_idx < strlen(input))
+	{
+		char_ascii_in_chars[0] = input[inp_idx++];
+		char_ascii_in_chars[1] = input[inp_idx++];
+		char_ascii_in_chars[2] = input[inp_idx++];
+		char_ascii = atoi(char_ascii_in_chars);
+		output[out_idx++] = (char)char_ascii;
+	}
+	output[out_idx] = '\0';
+
+	if (strcmp(output, "********") == 0)
+		yes();
+	else
+		no();
+}

passwords.txt

@@ -0,0 +1,3 @@
+level1: __stack_check
+level2: 00101108097098101114101
+level3: 42042042042042042042042

reverse_me_level_1.rep/idata/00/00000000.prp

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<FILE_INFO>
-    <BASIC_INFO>
-        <STATE NAME="CONTENT_TYPE" TYPE="string" VALUE="Program" />
-        <STATE NAME="PARENT" TYPE="string" VALUE="/" />
-        <STATE NAME="FILE_ID" TYPE="string" VALUE="7f0019c7f1179232689728" />
-        <STATE NAME="FILE_TYPE" TYPE="int" VALUE="0" />
-        <STATE NAME="READ_ONLY" TYPE="boolean" VALUE="false" />
-        <STATE NAME="NAME" TYPE="string" VALUE="level1" />
-    </BASIC_INFO>
-</FILE_INFO>

reverse_me_level_1.rep/idata/~index.bak

@@ -1,5 +0,0 @@
-VERSION=1
-/
-  00000000:level1:7f0019c7f1179232689728
-NEXT-ID:1
-MD5:d41d8cd98f00b204e9800998ecf8427e

reverse_me_level_1.rep/idata/~index.dat

@@ -1,5 +0,0 @@
-VERSION=1
-/
-  00000000:level1:7f0019c7f1179232689728
-NEXT-ID:1
-MD5:d41d8cd98f00b204e9800998ecf8427e

reverse_me_level_1.rep/project.prp

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<FILE_INFO>
-    <BASIC_INFO>
-        <STATE NAME="OWNER" TYPE="string" VALUE="willem" />
-    </BASIC_INFO>
-</FILE_INFO>

reverse_me_level_1.rep/projectState

@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<PROJECT>
-    <PROJECT_DATA_XML_NAME NAME="DISPLAY_DATA">
-        <SAVE_STATE>
-            <ARRAY NAME="EXPANDED_PATHS" TYPE="string">
-                <A VALUE="reverse_me_level_1:" />
-            </ARRAY>
-            <STATE NAME="SHOW_TABLE" TYPE="boolean" VALUE="true" />
-        </SAVE_STATE>
-    </PROJECT_DATA_XML_NAME>
-    <TOOL_MANAGER ACTIVE_WORKSPACE="Workspace">
-        <WORKSPACE NAME="Workspace" ACTIVE="true" />
-    </TOOL_MANAGER>
-</PROJECT>
-

reverse_me_level_1.rep/user/00/00000000.prp

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<FILE_INFO>
-    <BASIC_INFO>
-        <STATE NAME="CONTENT_TYPE" TYPE="string" VALUE="ProgramUserData" />
-        <STATE NAME="PARENT" TYPE="string" VALUE="/" />
-        <STATE NAME="FILE_ID" TYPE="string" VALUE="7f0018cdd1420914782470" />
-        <STATE NAME="FILE_TYPE" TYPE="int" VALUE="0" />
-        <STATE NAME="READ_ONLY" TYPE="boolean" VALUE="false" />
-        <STATE NAME="NAME" TYPE="string" VALUE="udf_7f0019c7f1179232689728" />
-    </BASIC_INFO>
-</FILE_INFO>

reverse_me_level_1.rep/user/~index.bak

@@ -1,4 +0,0 @@
-VERSION=1
-/
-NEXT-ID:0
-MD5:d41d8cd98f00b204e9800998ecf8427e

reverse_me_level_1.rep/user/~index.dat

@@ -1,5 +0,0 @@
-VERSION=1
-/
-  00000000:udf_7f0019c7f1179232689728:7f0018cdd1420914782470
-NEXT-ID:1
-MD5:d41d8cd98f00b204e9800998ecf8427e

reverse_me_level_1.rep/user/~journal.bak

@@ -1,2 +0,0 @@
-IADD:00000000:/udf_7f0019c7f1179232689728
-IDSET:/udf_7f0019c7f1179232689728:7f0018cdd1420914782470

reverse_me_level_1.rep/versioned/~index.bak

@@ -1,4 +0,0 @@
-VERSION=1
-/
-NEXT-ID:0
-MD5:d41d8cd98f00b204e9800998ecf8427e

reverse_me_level_1.rep/versioned/~index.dat

@@ -1,4 +0,0 @@
-VERSION=1
-/
-NEXT-ID:0
-MD5:d41d8cd98f00b204e9800998ecf8427e