encoding: simplify {places,eats}_dots

Why not using constant bools?

Much simpler than complex function calls, that eventually return
constant values.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>

src/base128.c

@@ -51,11 +51,6 @@ static const unsigned char cb128[] =
 static unsigned char rev128[256];
 static int reverse_init = 0;
 
-static int base128_handles_dots(void)
-{
-	return 0;
-}
-
 inline static void base128_reverse_init(void)
 {
 	int i;
@@ -258,8 +253,8 @@ const struct encoder base128_ops = {
 	.encode = base128_encode,
 	.decode = base128_decode,
 
-	.places_dots = base128_handles_dots,
-	.eats_dots = base128_handles_dots,
+	.places_dots = false,
+	.eats_dots = false,
 
 	.blocksize_raw = BASE128_BLKSIZE_RAW,
 	.blocksize_encoded = BASE128_BLKSIZE_ENC,

src/base32.c

@@ -32,11 +32,6 @@ static const char cb32_ucase[] =
 static unsigned char rev32[256];
 static int reverse_init = 0;
 
-static int base32_handles_dots(void)
-{
-	return 0;
-}
-
 inline static void base32_reverse_init(void)
 {
 	int i;
@@ -235,8 +230,8 @@ const struct encoder base32_ops = {
 	.encode = base32_encode,
 	.decode = base32_decode,
 
-	.places_dots = base32_handles_dots,
-	.eats_dots = base32_handles_dots,
+	.places_dots = false,
+	.eats_dots = false,
 
 	.blocksize_raw = BASE32_BLKSIZE_RAW,
 	.blocksize_encoded = BASE32_BLKSIZE_ENC,

src/base64.c

@@ -32,11 +32,6 @@ static const char cb64[] =
 static unsigned char rev64[256];
 static int reverse_init = 0;
 
-static int base64_handles_dots(void)
-{
-	return 0;
-}
-
 inline static void base64_reverse_init(void)
 {
 	int i;
@@ -173,8 +168,8 @@ const struct encoder base64_ops = {
 	.encode = base64_encode,
 	.decode = base64_decode,
 
-	.places_dots = base64_handles_dots,
-	.eats_dots = base64_handles_dots,
+	.places_dots = false,
+	.eats_dots = false,
 
 	.blocksize_raw = BASE64_BLKSIZE_RAW,
 	.blocksize_encoded = BASE64_BLKSIZE_ENC,

src/encoding.c

@@ -29,14 +29,14 @@ int build_hostname(char *buf, size_t buflen, const char *data,
 	space = MIN((size_t)maxlen, buflen) - strlen(topdomain) - 8;
 	/* 8 = 5 max header length + 1 dot before topdomain + 2 safety */
 
-	if (!encoder->places_dots())
+	if (!encoder->places_dots)
 		space -= (space / 57); /* space for dots */
 
 	memset(buf, 0, buflen);
 
 	encoder->encode(buf, &space, data, datalen);
 
-	if (!encoder->places_dots())
+	if (!encoder->places_dots)
 		inline_dotify(buf, buflen);
 
 	b = buf;
@@ -57,7 +57,7 @@ int build_hostname(char *buf, size_t buflen, const char *data,
 int unpack_data(char *buf, size_t buflen, char *data, size_t datalen,
 		const struct encoder *enc)
 {
-	if (!enc->eats_dots())
+	if (!enc->eats_dots)
 		datalen = inline_undotify(data, datalen);
 	return enc->decode(buf, &buflen, data, datalen);
 }

src/encoding.h

@@ -24,6 +24,8 @@
 #ifndef _ENCODING_H_
 #define _ENCODING_H_
 
+#include <stdbool.h>
+
 /* All-0, all-1, 01010101, 10101010: each 4 times to make sure the pattern
    spreads across multiple encoded chars -> 16 bytes total.
    Followed by 32 bytes from my /dev/random; should be enough.
@@ -36,8 +38,8 @@ struct encoder {
 	int (*encode)(char *dst, size_t *dstlen, const void *src, size_t srclen);
 	int (*decode)(void *dst, size_t *dstlen, const char *src, size_t srclen);
 
-	int (*places_dots)(void);
-	int (*eats_dots)(void);
+	const bool places_dots;
+	const bool eats_dots;
 
 	const int blocksize_raw;
 	const int blocksize_encoded;

src/iodined.c

@@ -2136,31 +2136,31 @@ write_dns_nameenc(char *buf, size_t buflen, const char *data, int datalen, char
 
 	if (downenc == 'S') {
 		buf[0] = 'i';
-		if (!base64_ops.places_dots())
+		if (!base64_ops.places_dots)
 			space -= (space / 57);	/* space for dots */
 		base64_ops.encode(buf+1, &space, data, datalen);
-		if (!base64_ops.places_dots())
+		if (!base64_ops.places_dots)
 			inline_dotify(buf, buflen);
 	} else if (downenc == 'U') {
 		buf[0] = 'j';
-		if (!base64u_ops.places_dots())
+		if (!base64u_ops.places_dots)
 			space -= (space / 57);	/* space for dots */
 		base64u_ops.encode(buf+1, &space, data, datalen);
-		if (!base64u_ops.places_dots())
+		if (!base64u_ops.places_dots)
 			inline_dotify(buf, buflen);
 	} else if (downenc == 'V') {
 		buf[0] = 'k';
-		if (!base128_ops.places_dots())
+		if (!base128_ops.places_dots)
 			space -= (space / 57);	/* space for dots */
 		base128_ops.encode(buf+1, &space, data, datalen);
-		if (!base128_ops.places_dots())
+		if (!base128_ops.places_dots)
 			inline_dotify(buf, buflen);
 	} else {
 		buf[0] = 'h';
-		if (!base32_ops.places_dots())
+		if (!base32_ops.places_dots)
 			space -= (space / 57);	/* space for dots */
 		base32_ops.encode(buf+1, &space, data, datalen);
-		if (!base32_ops.places_dots())
+		if (!base32_ops.places_dots)
 			inline_dotify(buf, buflen);
 	}