base64: fix assignment to wrong type, use ssize_t

[ccan] / ccan / base64 / base64.h

diff --git a/ccan/base64/base64.h b/ccan/base64/base64.h
index 405dc63fd44531d9bcfb55064ad3a0196f68f0dc..cef30d2576736ff3398fce192e3858f14b6ea71d 100644 (file)
--- a/ccan/base64/base64.h
+++ b/ccan/base64/base64.h
@@ -103,8 +103,8 @@ ssize_t base64_decode_using_maps(const base64_maps_t *maps,
  * @return Number of decoded bytes set in dest. -1 on error (and errno set)
  * @note sets errno = EDOM if src contains invalid characters
  */
-int base64_decode_quartet_using_maps(const base64_maps_t *maps,
-                                    char dest[3], const char src[4]);
+ssize_t base64_decode_quartet_using_maps(const base64_maps_t *maps,
+                                        char dest[3], const char src[4]);
 
 /**
  * base64_decode_tail_using_maps - decode the final bytes of a base64 string using a specific alphabet
@@ -116,8 +116,8 @@ int base64_decode_quartet_using_maps(const base64_maps_t *maps,
  * @note sets errno = EDOM if src contains invalid characters
  * @note sets errno = EINVAL if src is an invalid base64 tail
  */
-int base64_decode_tail_using_maps(const base64_maps_t *maps, char *dest,
-                                 const char *src, size_t srclen);
+ssize_t base64_decode_tail_using_maps(const base64_maps_t *maps, char *dest,
+                                     const char *src, size_t srclen);
 
 
 /* the rfc4648 functions: */
@@ -212,7 +212,7 @@ ssize_t base64_decode(char *dest, size_t destlen,
  * @note sets errno = EDOM if src contains invalid characters
  */
 static inline
-int base64_decode_quartet(char dest[3], const char src[4])
+ssize_t base64_decode_quartet(char dest[3], const char src[4])
 {
        return base64_decode_quartet_using_maps(&base64_maps_rfc4648,
                                                dest, src);