Cosmetics

pwned.c

@@ -8,7 +8,7 @@
 #define HASH_SUFFIX_SIZE 35
 #define URL_SIZE 43
 
-char *getURL(char* hash) {
+char *getURL(const char* hash) {
 	const char *baseURL = "https://api.pwnedpasswords.com/range/";
 	char *url = calloc(URL_SIZE, 1);
 	strncpy(url, baseURL, strlen(baseURL));
@@ -17,7 +17,7 @@ char *getURL(char* hash) {
 	return url;
 }
 
-char *getSuffixUppercase(char *hash) {
+char *getSuffixUppercase(const char *hash) {
 	char hashSuffix[HASH_SUFFIX_SIZE + 1];
 	strncpy(hashSuffix, hash+HASH_PREFIX_SIZE, HASH_SUFFIX_SIZE);
 
@@ -31,7 +31,7 @@ char *getSuffixUppercase(char *hash) {
 	return suffixUpper;
 }
 
-int findSuffix(char *suffix, char *data) {
+int findSuffix(const char *suffix, const char *data) {
 	int found = 0;
 	int check = 1;
 
@@ -62,7 +62,7 @@ int findSuffix(char *suffix, char *data) {
 	return found;
 }
 
-void usage(char *app) {
+void usage(const char *app) {
 	printf("Usage:\n%s <password>\n", app);
 }
 

sha.c

@@ -1,6 +1,6 @@
 #include "sha.h"
 
-static unsigned char *generateHash(char *string, size_t length) {
+static unsigned char *generateHash(const char *string, size_t length) {
 	unsigned char *hash = malloc(SHA_DIGEST_LENGTH);
 	SHA1((unsigned char*)string, length, hash);
 
@@ -16,7 +16,7 @@ static char *hashToString(unsigned char *hash) {
 	return string;
 }
 
-char *getHash(char *string) {
+char *getHash(const char *string) {
 	size_t length = strlen(string);
 	unsigned char *hash = generateHash(string, length);
 	char *hashString = hashToString(hash);

sha.h

@@ -3,4 +3,4 @@
 #include <string.h>
 #include <openssl/sha.h>
 
-char *getHash(char *string);
+char *getHash(const char *string);