int context_del (char *);
char *context_find (const char *);
char *context_find_by_type (const char *, const char *, const char *);
+int context_find_prefix(const char *);
int context_foil (char *);
void context_read (void);
void context_replace (char *, char *);
int sc_width(void);
int build_form (char *, char *, int *, char *, char *, char *, char *,
char *, char *);
-int sendsbr (char **, int, char *, char *, struct stat *, int);
+int sendsbr (char **, int, char *, char *, struct stat *, int, const char *);
int SOprintf (char *, ...);
int what_now (char *, int, int, char *, char *,
int, struct msgs *, char *, int, char *, int);
int WhatNow(int, char **);
+/* Includes trailing NUL */
+
+#define BASE64SIZE(x) ((((x + 2) / 3) * 4) + 1)
+
/*
* Copy data from one file to another, converting to base64-encoding.
*
*/
int writeBase64aux(FILE *in, FILE *out, int crlf);
-int writeBase64 (unsigned char *, size_t, unsigned char *);
-int writeBase64raw (unsigned char *, size_t, unsigned char *);
+int writeBase64 (const unsigned char *, size_t, unsigned char *);
+int writeBase64raw (const unsigned char *, size_t, unsigned char *);
+
+/*
+ * first argument: the string to be decoded
+ * second argument: the decoded bytes
+ * third argument: number of decoded bytes
+ * fourth argument: non-zero for text content, and for which CR's should be skipped
+ * fifth argument: for an MD5 digest, it can be null
+ */
+int decodeBase64 (const char *, const char **, size_t *, int, unsigned char *);
+
+void hexify (const unsigned char *, size_t, char **);
/*
* credentials management