/usr/include/postfix/tls_prng.h is in postfix-dev 2.9.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | #ifndef _TLS_PRNG_SRC_H_INCLUDED_
#define _TLS_PRNG_SRC_H_INCLUDED_
/*++
/* NAME
/* tls_prng_src 3h
/* SUMMARY
/* OpenSSL PRNG maintenance routines
/* SYNOPSIS
/* #include <tls_prng_src.h>
/* DESCRIPTION
/* .nf
/*
* External interface.
*/
typedef struct TLS_PRNG_SRC {
int fd; /* file handle */
char *name; /* resource name */
int timeout; /* time limit of applicable */
} TLS_PRNG_SRC;
extern TLS_PRNG_SRC *tls_prng_egd_open(const char *, int);
extern ssize_t tls_prng_egd_read(TLS_PRNG_SRC *, size_t);
extern int tls_prng_egd_close(TLS_PRNG_SRC *);
extern TLS_PRNG_SRC *tls_prng_dev_open(const char *, int);
extern ssize_t tls_prng_dev_read(TLS_PRNG_SRC *, size_t);
extern int tls_prng_dev_close(TLS_PRNG_SRC *);
extern TLS_PRNG_SRC *tls_prng_file_open(const char *, int);
extern ssize_t tls_prng_file_read(TLS_PRNG_SRC *, size_t);
extern int tls_prng_file_close(TLS_PRNG_SRC *);
extern TLS_PRNG_SRC *tls_prng_exch_open(const char *);
extern void tls_prng_exch_update(TLS_PRNG_SRC *);
extern void tls_prng_exch_close(TLS_PRNG_SRC *);
/* LICENSE
/* .ad
/* .fi
/* The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/* Wietse Venema
/* IBM T.J. Watson Research
/* P.O. Box 704
/* Yorktown Heights, NY 10598, USA
/*--*/
#endif
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