return, the OUT variable will hold a pointer to newly allocated
memory that must be deallocated by the caller. If output string
length would overflow, 0 is returned and OUT is set to NULL. If
- memory allocation fail, OUT is set to NULL, and the return value
- indicate length of the requested memory block, i.e.,
+ memory allocation failed, OUT is set to NULL, and the return value
+ indicates length of the requested memory block, i.e.,
BASE64_LENGTH(inlen) + 1. */
size_t
base64_encode_alloc (const char *in, size_t inlen, char **out)
}
*out = malloc (outlen);
- if (*out)
- base64_encode (in, inlen, *out, outlen);
+ if (!*out)
+ return outlen;
+
+ base64_encode (in, inlen, *out, outlen);
return outlen - 1;
}
# define uchar_in_range(c) ((c) <= 255)
#endif
+/* Return true if CH is a character from the Base64 alphabet, and
+ false otherwise. */
bool
isbase64 (char ch)
{
size of the decoded data is stored in *OUTLEN. OUTLEN may be NULL,
if the caller is not interested in the decoded length. *OUT may be
NULL to indicate an out of memory error, in which case *OUTLEN
- contain the size of the memory block needed. The function return
+ contains the size of the memory block needed. The function returns
true on successful decoding and memory allocation errors. (Use the
*OUT and *OUTLEN parameters to differentiate between successful
- decoding and memory error.) The function return false if the input
- was invalid, in which case *OUT is NULL and *OUTLEN is
+ decoding and memory error.) The function returns false if the
+ input was invalid, in which case *OUT is NULL and *OUTLEN is
undefined. */
bool
base64_decode_alloc (const char *in, size_t inlen, char **out,