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/* saslutil.h -- various utility functions in SASL library
*/
#ifndef SASLUTIL_H
#define SASLUTIL_H 1
#ifndef SASL_H
#include "sasl.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* base64 decode
* in -- input data
* inlen -- length of input data
* out -- output data (may be same as in, must have enough space)
* outmax -- max size of output buffer
* result:
* outlen -- actual output length
*
* returns SASL_BADPROT on bad base64,
* SASL_BUFOVER if result won't fit
* SASL_OK on success
*/
LIBSASL_API int sasl_decode64(const char *in, unsigned inlen,
char *out, unsigned outmax, unsigned *outlen);
/* base64 encode
* in -- input data
* inlen -- input data length
* out -- output buffer (will be NUL terminated)
* outmax -- max size of output buffer
* result:
* outlen -- gets actual length of output buffer (optional)
*
* Returns SASL_OK on success, SASL_BUFOVER if result won't fit
*/
LIBSASL_API int sasl_encode64(const char *in, unsigned inlen,
char *out, unsigned outmax, unsigned *outlen);
/* make a challenge string (NUL terminated)
* buf -- buffer for result
* maxlen -- max length of result
* hostflag -- 0 = don't include hostname, 1 = include hostname
* returns final length or 0 if not enough space
*/
LIBSASL_API int sasl_mkchal(sasl_conn_t *conn, char *buf,
unsigned maxlen, unsigned hostflag);
/* verify a string is valid UTF-8
* if len == 0, strlen(str) will be used.
* returns SASL_BADPROT on error, SASL_OK on success
*/
LIBSASL_API int sasl_utf8verify(const char *str, unsigned len);
/* create random pool seeded with OS-based params */
LIBSASL_API int sasl_randcreate(sasl_rand_t **rpool);
/* free random pool from randcreate */
LIBSASL_API void sasl_randfree(sasl_rand_t **rpool);
/* seed random number generator */
LIBSASL_API void sasl_randseed(sasl_rand_t *rpool, const char *seed,
unsigned len);
/* generate random octets */
LIBSASL_API void sasl_rand(sasl_rand_t *rpool, char *buf, unsigned len);
/* churn data into random number generator */
LIBSASL_API void sasl_churn(sasl_rand_t *rpool, const char *data,
unsigned len);
/* erase a security sensitive buffer or password.
* Implementation may use recovery-resistant erase logic.
*/
LIBSASL_API void sasl_erasebuffer(char *pass, unsigned len);
#ifdef WIN32
/* Just in case a different DLL defines this as well */
#if defined(NEED_GETOPT)
LIBSASL_API int getopt(int argc, char **argv, char *optstring);
#endif
LIBSASL_API char * getpass(const char *prompt);
#endif /* WIN32 */
#ifdef __cplusplus
}
#endif
#endif /* SASLUTIL_H */
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