added more code

CPE455/lab05/Makefile

@@ -0,0 +1,8 @@
+CC		:= afl-gcc
+CFLAGS	:=  -Wno-unused-result
+
+all: crashy.c
+	$(CC) $(CFLAGS) -o crashy crashy.c
+
+clean:
+	rm crashy

CPE455/lab05/crashy.c

@@ -0,0 +1,83 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(int argc, char *argv[]) {
+
+	FILE *fp;
+	unsigned int sz, len, ptr;
+	char *buffer;
+	char type;
+	char tmp_char;
+	int	tmp_int;
+	char *tmp_string;
+
+	if(argc != 2) {
+		fprintf(stderr, "Usage: %s <inputfile>\n", argv[0]);
+		return 1;
+	}
+
+	fp = fopen(argv[1], "r");
+	if(!fp) {
+		fprintf(stderr, "Failed to open '%s'\n", argv[1]);
+		return 1;
+	}
+
+	fseek(fp, 0, SEEK_END);
+	sz = ftell(fp);
+	fseek(fp, 0, SEEK_SET);
+
+	buffer = malloc(sz);
+	if(!buffer) {
+		fprintf(stderr, "Failed to allocate %d bytes of memory\n", sz);
+		return 1;
+	}
+
+	fread(buffer, sizeof(char), sz, fp);
+
+	ptr = 0;
+	while(ptr < sz) {
+
+		type = buffer[ptr++];
+		switch(type) {
+
+			case '\x01':	// integer
+				tmp_int = *(int *)(buffer + ptr);
+				ptr += sizeof(int);
+				printf("i: 0x%08x\n", tmp_int);
+				break;
+
+			case '\x02':	// char
+				tmp_char = buffer[ptr++];
+				printf("c: 0x%02x\n", (unsigned char)tmp_char);
+				break;
+
+			case '\x03':	// string
+				len = *(int *)(buffer + ptr);
+				ptr += sizeof(int);
+				tmp_string = malloc(len);
+				if(!tmp_string) {
+					fprintf(stderr, "Failed to allocate %d bytes of memory\n", len);
+					return 1;
+				}
+				strcpy(tmp_string, (buffer + ptr));
+				printf("s: %s\n", tmp_string);
+				ptr += len;
+				break;
+
+			case '\x04':	// comment
+				printf("#: %s\n", (buffer + ptr));
+				while(*(buffer + ptr++) != '\x00');
+				break;
+
+			case '\xff':	// END
+				return 0;
+
+			default:
+				fprintf(stderr, "Unknown data type '%c'\n", type);
+
+		}
+
+	}
+
+}

CPE455/lab05/inputFiles/example4

@@ -0,0 +1 @@
+ABC<>