cryptopals_c

commit c8a608907b0ee385f5be45728c3a960fdd060688
parent 772a79bfbb99aa54f35b41d118375f9a153cfb63
Author: superpozycja <anna@superpozycja.net>
Date:   Sat, 22 Feb 2025 19:25:39 +0100

style fixes

Diffstat:
M
lib/analysis.c
 | 
8
++++----
M
lib/ba.c
 | 
16
++++++++--------
M
lib/ba.h
 | 
2
+-
M
src/s1/c1.c
 | 
2
+-
M
src/s1/c3.c
 | 
2
+-
M
src/s1/c4.c
 | 
1
+

6 files changed, 16 insertions(+), 15 deletions(-)
diff --git a/lib/analysis.c b/lib/analysis.c
@@ -3,7 +3,7 @@
 unsigned long score_letter(char c)
 {
 	/* this is approximate, however this shouldnt really make a difference
-	 * unless you have multiple ciphertexts very close to each other as 
+	 * unless you have multiple ciphertexts very close to each other as
 	 * far as the score is concerned - meaning this is enough to weed out
 	 * junk (nonenglish) byte sequences */
 	unsigned long freqs[] = {
@@ -11,7 +11,7 @@ unsigned long score_letter(char c)
 		22, 20, 61, 70, 1,
 		8, 40, 24, 67, 75,
 		19, 1, 60, 63, 91,
-		28, 10, 24, 2, 20, 
+		28, 10, 24, 2, 20,
 		1};
 
 	c = tolower(c);
@@ -109,7 +109,7 @@ static float get_i_c_m(ba *ct, unsigned int m)
 
 		chunk->len = ct->len / m;
 		chunk->val = (uint8_t *) malloc(sizeof(uint8_t) * chunk->len);
-		
+
 		for (j = 0, k = 0; j < chunk->len &&  k + i < ct->len; j++, k += m)
 			chunk->val[j] = ct->val[k + i];
 		res += index_of_coincidence(chunk);
@@ -126,7 +126,7 @@ unsigned int guess_vigenere_keylen(ba *ct)
 	max = 0;
 	for (m = 1; m < 40; m++) {
 		float avg;
-		
+
 		avg = get_i_c_m(ct, m);
 		if (avg > max) {
 			max = avg;
diff --git a/lib/ba.c b/lib/ba.c
@@ -1,6 +1,6 @@
 #include "ba.h"
 
-ba* ba_from_hex(char* hex) 
+ba* ba_from_hex(char* hex)
 {
 	uint8_t* b_val;
 	size_t b_len;
@@ -58,7 +58,7 @@ ba* ba_from_string(char *s)
 	return b;
 }
 
-ba* ba_from_hex_n(char* hex, unsigned int n) 
+ba* ba_from_hex_n(char* hex, unsigned int n)
 {
 	uint8_t* b_val;
 	size_t offset;
@@ -101,24 +101,24 @@ ba* ba_from_hex_n(char* hex, unsigned int n)
 	return b;
 }
 
-void ba_fprint(ba* b, FILE* stream, int prec) 
+void ba_fprint(ba* b, FILE* stream, int prec)
 {
 	int len;
-	int i;	
+	int i;
 
 	len = (prec > b->len) || prec == 0 ? b->len : prec;
 	for (i = 0; i < len; i++)
 		fprintf(stream, "%02x", (b->val)[i]);
 }
 
-void ba_fprint_ascii(ba* b, FILE* stream, int prec) 
+void ba_fprint_ascii(ba* b, FILE* stream, int prec)
 {
 	int len;
 	int i;
 
 	len = (prec > b->len) || prec == 0 ? b->len : prec;
 	for (i = 0; i < len; i++)
-		if (isprint((b->val)[i])) 
+		if (isprint((b->val)[i]))
 			fprintf(stream, "%c", (b->val)[i]);
 		else if (b->val[i] == 0x0a)
 			fprintf(stream, "\n");
@@ -126,7 +126,7 @@ void ba_fprint_ascii(ba* b, FILE* stream, int prec)
 			fprintf(stream, "\\b%02x", (b->val)[i]);
 }
 
-void ba_xor(ba* a, ba* b) 
+void ba_xor(ba* a, ba* b)
 {
 	int len;
 	int i;
@@ -149,7 +149,7 @@ int ba_copy(ba *dst, ba *src)
 
 }
 
-void ba_free(ba* b) 
+void ba_free(ba* b)
 {
 	free(b->val);
 	free(b);
diff --git a/lib/ba.h b/lib/ba.h
@@ -12,7 +12,7 @@
 typedef struct {
 	size_t len;
 	uint8_t *val;
-} ba; 
+} ba;
 
 ba* ba_from_hex(char *hex);
 ba* ba_from_hex_n(char *hex, unsigned int n);
diff --git a/src/s1/c1.c b/src/s1/c1.c
@@ -1,7 +1,7 @@
 #include <stdio.h>
 #include <util.h>
 
-int main(int argc, char* argv[]) 
+int main(int argc, char* argv[])
 {
 	char* b64;
 	int ret;
diff --git a/src/s1/c3.c b/src/s1/c3.c
@@ -1,7 +1,7 @@
 #include <ba.h>
 #include <analysis.h>
 
-int main(int argc, char* argv[]) 
+int main(int argc, char* argv[])
 {
 	ba *ct;
 
diff --git a/src/s1/c4.c b/src/s1/c4.c
@@ -31,6 +31,7 @@ int main(int argc, char* argv[])
 		return -1;
 
 	p = fopen(argv[1], "r");
+
 	maxscore = 0;
 	best = (ba *) malloc(sizeof(ba));