Use size_t rather than unsigned for base16, base64, nettle_bufer and sexp related functions.

base16-decode.c

@@ -93,17 +93,17 @@ base16_decode_single(struct base16_decode_ctx *ctx,
 
 int
 base16_decode_update(struct base16_decode_ctx *ctx,
-		     unsigned *dst_length,
+		     size_t *dst_length,
 		     uint8_t *dst,
-		     unsigned src_length,
+		     size_t src_length,
 		     const uint8_t *src)
 {
-  unsigned done;
-  unsigned i;
+  size_t done;
+  size_t i;
 
   assert(*dst_length >= BASE16_DECODE_LENGTH(src_length));
   
-  for (i = 0, done = 0; i<src_length; i++)
+  for (i = done = 0; i<src_length; i++)
     switch(base16_decode_single(ctx, dst + done, src[i]))
       {
       case -1:

base16-encode.c

@@ -47,11 +47,11 @@ base16_encode_single(uint8_t *dst,
 /* Always stores BASE16_ENCODE_LENGTH(length) digits in dst. */
 void
 base16_encode_update(uint8_t *dst,
-		     unsigned length,
+		     size_t length,
 		     const uint8_t *src)
 {
-  unsigned i;
+  size_t i;
   
-  for (i = 0, dst; i<length; i++, dst += 2)
+  for (i = 0; i<length; i++, dst += 2)
     base16_encode_single(dst, src[i]);
 }

base16-meta.c

@@ -29,25 +29,29 @@
 #include "base16.h"
 
 /* Same as the macros with the same name */
-static unsigned
-base16_encode_length(unsigned length)
+static nettle_armor_length_func base16_encode_length;
+static size_t
+base16_encode_length(size_t length)
 {
   return BASE16_ENCODE_LENGTH(length);
 }
 
-static unsigned
-base16_decode_length(unsigned length)
+static nettle_armor_length_func base16_decode_length;
+static size_t
+base16_decode_length(size_t length)
 {
   return BASE16_DECODE_LENGTH(length);
 }
 
+static nettle_armor_init_func base16_encode_init;
 static void
-base16_encode_init(void *ctx)
-{ (void) ctx; }
+base16_encode_init(void *ctx UNUSED)
+{ }
 
-static unsigned
+static nettle_armor_encode_update_func base16_encode_update_wrapper;
+static size_t
 base16_encode_update_wrapper(void *ctx UNUSED, uint8_t *dst,
-			     unsigned length, const uint8_t *src)
+			     size_t length, const uint8_t *src)
 {
   base16_encode_update(dst, length, src);
   return BASE16_ENCODE_LENGTH(length);
@@ -56,9 +60,12 @@ base16_encode_update_wrapper(void *ctx UNUSED, uint8_t *dst,
 #undef base16_encode_update
 #define base16_encode_update base16_encode_update_wrapper
 
-static unsigned
-base16_encode_final(void *ctx, uint8_t *dst)
-{ (void) ctx; (void) dst; return 0; }
+static nettle_armor_encode_final_func base16_encode_final;
+static size_t
+base16_encode_final(void *ctx UNUSED, uint8_t *dst UNUSED)
+{
+  return 0;
+}
 
 
 #define BASE16_ENCODE_FINAL_LENGTH 0

base16.h

@@ -54,7 +54,7 @@ base16_encode_single(uint8_t *dst,
 /* Always stores BASE16_ENCODE_LENGTH(length) digits in dst. */
 void
 base16_encode_update(uint8_t *dst,
-		     unsigned length,
+		     size_t length,
 		     const uint8_t *src);
 
 
@@ -90,9 +90,9 @@ base16_decode_single(struct base16_decode_ctx *ctx,
  * too small. FIXME: Return some error instead? */
 int
 base16_decode_update(struct base16_decode_ctx *ctx,
-		     unsigned *dst_length,
+		     size_t *dst_length,
 		     uint8_t *dst,
-		     unsigned src_length,
+		     size_t src_length,
 		     const uint8_t *src);
 
 /* Returns 1 on success. */

base64-decode.c

@@ -114,13 +114,13 @@ base64_decode_single(struct base64_decode_ctx *ctx,
 
 int
 base64_decode_update(struct base64_decode_ctx *ctx,
-		     unsigned *dst_length,
+		     size_t *dst_length,
 		     uint8_t *dst,
-		     unsigned src_length,
+		     size_t src_length,
 		     const uint8_t *src)
 {
-  unsigned done;
-  unsigned i;
+  size_t done;
+  size_t i;
 
   assert(*dst_length >= BASE64_DECODE_LENGTH(src_length));
   

base64-encode.c

@@ -39,7 +39,7 @@ static const uint8_t encode_table[64] =
 #define ENCODE(x) (encode_table[0x3F & (x)])
 
 void
-base64_encode_raw(uint8_t *dst, unsigned length, const uint8_t *src)
+base64_encode_raw(uint8_t *dst, size_t length, const uint8_t *src)
 {
   const uint8_t *in = src + length;
   uint8_t *out = dst + BASE64_ENCODE_RAW_LENGTH(length);
@@ -140,7 +140,7 @@ base64_encode_init(struct base64_encode_ctx *ctx)
 }
 
 /* Encodes a single byte. */
-unsigned
+size_t
 base64_encode_single(struct base64_encode_ctx *ctx,
 		     uint8_t *dst,
 		     uint8_t src)
@@ -165,16 +165,16 @@ base64_encode_single(struct base64_encode_ctx *ctx,
 
 /* Returns the number of output characters. DST should point to an
  * area of size at least BASE64_ENCODE_LENGTH(length). */
-unsigned
+size_t
 base64_encode_update(struct base64_encode_ctx *ctx,
 		     uint8_t *dst,
-		     unsigned length,
+		     size_t length,
 		     const uint8_t *src)
 {
-  unsigned done = 0;
-  unsigned left = length;
+  size_t done = 0;
+  size_t left = length;
   unsigned left_over;
-  unsigned bulk;
+  size_t bulk;
   
   while (ctx->bits && left)
     {
@@ -208,7 +208,7 @@ base64_encode_update(struct base64_encode_ctx *ctx,
 
 /* DST should point to an area of size at least
  * BASE64_ENCODE_FINAL_SIZE */
-unsigned
+size_t
 base64_encode_final(struct base64_encode_ctx *ctx,
 		    uint8_t *dst)
 {

base64-meta.c

@@ -29,14 +29,16 @@
 #include "base64.h"
 
 /* Same as the macros with the same name */
-static unsigned
-base64_encode_length(unsigned length)
+static nettle_armor_length_func base64_encode_length;
+static size_t
+base64_encode_length(size_t length)
 {
   return BASE64_ENCODE_LENGTH(length);
 }
 
-static unsigned
-base64_decode_length(unsigned length)
+static nettle_armor_length_func base64_decode_length;
+static size_t
+base64_decode_length(size_t length)
 {
   return BASE64_DECODE_LENGTH(length);
 }

base64.h

@@ -71,22 +71,22 @@ void
 base64_encode_init(struct base64_encode_ctx *ctx);
 
 /* Encodes a single byte. Returns amount of output (always 1 or 2). */
-unsigned
+size_t
 base64_encode_single(struct base64_encode_ctx *ctx,
 		     uint8_t *dst,
 		     uint8_t src);
 
 /* Returns the number of output characters. DST should point to an
  * area of size at least BASE64_ENCODE_LENGTH(length). */
-unsigned
+size_t
 base64_encode_update(struct base64_encode_ctx *ctx,
 		     uint8_t *dst,
-		     unsigned length,
+		     size_t length,
 		     const uint8_t *src);
 
 /* DST should point to an area of size at least
  * BASE64_ENCODE_FINAL_LENGTH */
-unsigned
+size_t
 base64_encode_final(struct base64_encode_ctx *ctx,
 		    uint8_t *dst);
 
@@ -96,7 +96,7 @@ base64_encode_final(struct base64_encode_ctx *ctx,
  * Generates exactly BASE64_ENCODE_RAW_LENGTH(length) bytes of output.
  * Supports overlapped operation, if src <= dst. */
 void
-base64_encode_raw(uint8_t *dst, unsigned length, const uint8_t *src);
+base64_encode_raw(uint8_t *dst, size_t length, const uint8_t *src);
 
 void
 base64_encode_group(uint8_t *dst, uint32_t group);
@@ -137,9 +137,9 @@ base64_decode_single(struct base64_decode_ctx *ctx,
  * too small. FIXME: Return some error instead? */
 int
 base64_decode_update(struct base64_decode_ctx *ctx,
-		     unsigned *dst_length,
+		     size_t *dst_length,
 		     uint8_t *dst,
-		     unsigned src_length,
+		     size_t src_length,
 		     const uint8_t *src);
 
 /* Returns 1 on success. */

buffer.c

@@ -35,13 +35,13 @@
 
 int
 nettle_buffer_grow(struct nettle_buffer *buffer,
-		   unsigned length)
+		   size_t length)
 {
   assert(buffer->size <= buffer->alloc);
   
   if (buffer->size + length > buffer->alloc)
     {
-      unsigned alloc;
+      size_t alloc;
       uint8_t *p;
       
       if (!buffer->realloc)
@@ -72,7 +72,7 @@ nettle_buffer_init_realloc(struct nettle_buffer *buffer,
 
 void
 nettle_buffer_init_size(struct nettle_buffer *buffer,
-			unsigned length, uint8_t *space)
+			size_t length, uint8_t *space)
 {
   buffer->contents = space;
   buffer->alloc = length;
@@ -100,7 +100,7 @@ nettle_buffer_reset(struct nettle_buffer *buffer)
 
 uint8_t *
 nettle_buffer_space(struct nettle_buffer *buffer,
-		    unsigned length)
+		    size_t length)
 {
   uint8_t *p;
 
@@ -114,7 +114,7 @@ nettle_buffer_space(struct nettle_buffer *buffer,
      
 int
 nettle_buffer_write(struct nettle_buffer *buffer,
-		    unsigned length, const uint8_t *data)
+		    size_t length, const uint8_t *data)
 {
   uint8_t *p = nettle_buffer_space(buffer, length);
   if (p)

buffer.h

@@ -36,13 +36,13 @@ struct nettle_buffer
 {
   uint8_t *contents;
   /* Allocated size */
-  unsigned alloc;
+  size_t alloc;
 
   void *realloc_ctx;
   nettle_realloc_func *realloc;
 
   /* Current size */
-  unsigned size;
+  size_t size;
 };
 
 /* Initializes a buffer that uses plain realloc */
@@ -57,7 +57,7 @@ nettle_buffer_init_realloc(struct nettle_buffer *buffer,
 /* Initializes a buffer of fix size */
 void
 nettle_buffer_init_size(struct nettle_buffer *buffer,
-			unsigned length, uint8_t *space);
+			size_t length, uint8_t *space);
 
 void
 nettle_buffer_clear(struct nettle_buffer *buffer);
@@ -68,7 +68,7 @@ nettle_buffer_reset(struct nettle_buffer *buffer);
 
 int
 nettle_buffer_grow(struct nettle_buffer *buffer,
-		   unsigned length);
+		   size_t length);
 
 #define NETTLE_BUFFER_PUTC(buffer, c) \
 ( (((buffer)->size < (buffer)->alloc) || nettle_buffer_grow((buffer), 1)) \
@@ -76,7 +76,7 @@ nettle_buffer_grow(struct nettle_buffer *buffer,
 
 int
 nettle_buffer_write(struct nettle_buffer *buffer,
-		    unsigned length, const uint8_t *data);
+		    size_t length, const uint8_t *data);
 
 /* Like nettle_buffer_write, but instead of copying data to the
  * buffer, it returns a pointer to the area where the caller can copy
@@ -84,7 +84,7 @@ nettle_buffer_write(struct nettle_buffer *buffer,
  * reallocate the buffer. */
 uint8_t *
 nettle_buffer_space(struct nettle_buffer *buffer,
-		    unsigned length);
+		    size_t length);
 
 /* Copy the contents of SRC to the end of DST. */
 int

examples/base16dec.c

@@ -65,7 +65,7 @@ main(int argc UNUSED, char **argv UNUSED)
   for (;;)
     {
       int nbytes; /* Number of bytes read frmo disk at each iteration */
-      unsigned decoded_bytes; /* Bytes actually generated at each iteration */
+      size_t decoded_bytes; /* Bytes actually generated at each iteration */
 
       nbytes = fread(buffer, 1, CHUNK_SIZE, stdin);
 
@@ -75,30 +75,30 @@ main(int argc UNUSED, char **argv UNUSED)
 	  return EXIT_FAILURE;
 	}
       
-    decoded_bytes = BASE16_DECODE_LENGTH(nbytes);
-
-    /* Decodes one chunk: */
-    if (!base16_decode_update(&b16_ctx, &decoded_bytes, result, nbytes, buffer))
-      {
-	werror ("Error decoding input (not base16?)\n");
-	return EXIT_FAILURE;
-      }
-
-    if (!write_string (stdout, decoded_bytes, result))
-      {
-	werror ("Error writing file: %s\n", strerror(errno));
-	return EXIT_FAILURE;
-      }
-    if (nbytes < CHUNK_SIZE)
-      {
-	/* Check if decoding finalized OK: */
-	if (!base16_decode_final(&b16_ctx))
-	  {
-	    werror("Decoding did not finish properly.\n");
-	    return EXIT_FAILURE;
-	  }
-	break;
-      }
+      decoded_bytes = BASE16_DECODE_LENGTH(nbytes);
+
+      /* Decodes one chunk: */
+      if (!base16_decode_update(&b16_ctx, &decoded_bytes, result, nbytes, buffer))
+	{
+	  werror ("Error decoding input (not base16?)\n");
+	  return EXIT_FAILURE;
+	}
+
+      if (!write_string (stdout, decoded_bytes, result))
+	{
+	  werror ("Error writing file: %s\n", strerror(errno));
+	  return EXIT_FAILURE;
+	}
+      if (nbytes < CHUNK_SIZE)
+	{
+	  /* Check if decoding finalized OK: */
+	  if (!base16_decode_final(&b16_ctx))
+	    {
+	      werror("Decoding did not finish properly.\n");
+	      return EXIT_FAILURE;
+	    }
+	  break;
+	}
     }
 
   if (fflush (stdout) != 0)

examples/base64dec.c

@@ -65,7 +65,7 @@ main(int argc UNUSED, char **argv UNUSED)
   for (;;)
     {
       int nbytes; /* Number of bytes read frmo disk at each iteration */
-      unsigned decoded_bytes; /* Bytes actually generated at each iteration */
+      size_t decoded_bytes; /* Bytes actually generated at each iteration */
 
       nbytes = fread(buffer, 1, CHUNK_SIZE, stdin);
 

nettle-types.h

@@ -67,20 +67,20 @@ typedef void nettle_hash_digest_func(void *ctx,
 
 /* ASCII armor codecs. NOTE: Experimental and subject to change. */
 
-typedef unsigned nettle_armor_length_func(unsigned length);
+typedef size_t nettle_armor_length_func(size_t length);
 typedef void nettle_armor_init_func(void *ctx);
 
-typedef unsigned nettle_armor_encode_update_func(void *ctx,
-						 uint8_t *dst,
-						 unsigned src_length,
-						 const uint8_t *src);
+typedef size_t nettle_armor_encode_update_func(void *ctx,
+					       uint8_t *dst,
+					       size_t src_length,
+					       const uint8_t *src);
 
-typedef unsigned nettle_armor_encode_final_func(void *ctx, uint8_t *dst);
+typedef size_t nettle_armor_encode_final_func(void *ctx, uint8_t *dst);
 
 typedef int nettle_armor_decode_update_func(void *ctx,
-					    unsigned *dst_length,
+					    size_t *dst_length,
 					    uint8_t *dst,
-					    unsigned src_length,
+					    size_t src_length,
 					    const uint8_t *src);
 
 typedef int nettle_armor_decode_final_func(void *ctx);

sexp-format.c

@@ -40,14 +40,14 @@
 
 static unsigned
 format_prefix(struct nettle_buffer *buffer,
-	      unsigned length)
+	      size_t length)