Convert five more manuals from POD to mdoc.

I found drafts of these in my tree, probably originally from
Max Fillinger, that just needed minor polishing.

6 files changed, 638 insertions, 5 deletions

diff --git a/lib/libcrypto/man/CONF_modules_free.3 b/lib/libcrypto/man/CONF_modules_free.3
new file mode 100644
index 00000000000..b09989d6641
--- /dev/null
+++ b/lib/libcrypto/man/CONF_modules_free.3
@@ -0,0 +1,56 @@
+.Dd $Mdocdate: November 11 2015 $
+.Dt CONF_MODULES_FREE 3
+.Os
+.Sh NAME
+.Nm CONF_modules_free ,
+.Nm CONF_modules_finish ,
+.Nm CONF_modules_unload
+.Nd OpenSSL configuration cleanup functions
+.Sh SYNOPSIS
+.In openssl/conf.h
+.Ft void
+.Fo CONF_modules_free
+.Fa void
+.Fc
+.Ft void
+.Fo CONF_modules_finish
+.Fa void
+.Fc
+.Ft void
+.Fo CONF_modules_unload
+.Fa "int all"
+.Fc
+.Sh DESCRIPTION
+.Fn CONF_modules_free
+closes down and frees up all memory allocated by all configuration
+modules.
+.Pp
+.Fn CONF_modules_finish
+calls the configuration
+.Sy finish
+handler of each configuration module to free up any configuration
+that module may have performed.
+.Pp
+.Fn CONF_modules_unload
+finishes and unloads configuration modules.
+If
+.Fa all
+is set to 0, only modules loaded from DSOs will be unloaded.
+If
+.Fa all
+is 1, all modules, including builtin modules, will be unloaded.
+.Sh NOTES
+Normally applications will only call
+.Fn CONF_modules_free
+at application to tidy up any configuration performed.
+.Sh RETURN VALUE
+None of the functions return a value.
+.Sh SEE ALSO
+.Xr CONF_modules_load_file 3 ,
+.Xr OPENSSL_config 3
+.Sh HISTORY
+.Fn CONF_modules_free ,
+.Fn CONF_modules_unload ,
+and
+.Fn CONF_modules_finish
+first appeared in OpenSSL 0.9.7.
diff --git a/lib/libcrypto/man/CONF_modules_load_file.3 b/lib/libcrypto/man/CONF_modules_load_file.3
new file mode 100644
index 00000000000..b5de94411d9
--- /dev/null
+++ b/lib/libcrypto/man/CONF_modules_load_file.3
@@ -0,0 +1,82 @@
+.Dd $Mdocdate: November 11 2015 $
+.Dt CONF_MODULES_LOAD_FILE 3
+.Os
+.Sh NAME
+.Nm CONF_modules_load_file ,
+.Nm CONF_modules_load
+.Nd OpenSSL configuration functions
+.Sh SYNOPSIS
+.In openssl/conf.h
+.Ft int
+.Fo CONF_modules_load_file
+.Fa "const char *filename"
+.Fa "const char *appname"
+.Fa "unsigned long flags"
+.Fc
+.Ft int
+.Fo CONF_modules_load
+.Fa "const CONF *cnf"
+.Fa "const char *appname"
+.Fa "unsigned long flags"
+.Fc
+.Sh DESCRIPTION
+The function
+.Fn CONF_modules_load_file
+configures OpenSSL using file
+.Fa filename
+and application name
+.Fa appname .
+If
+.Fa filename
+is
+.Dv NULL ,
+the standard OpenSSL configuration file is used.
+If
+.Fa appname
+is
+.Dv NULL ,
+the standard OpenSSL application name
+.Qq openssl_conf
+is used.
+The behaviour can be cutomized using
+.Fa flags .
+.Pp
+.Fn CONF_modules_load
+is idential to
+.Fn CONF_modules_load_file
+except it reads configuration information from
+.Fa cnf .
+.Pp
+The following
+.Fa flags
+are currently recognized:
+.Bl -tag -width Ds
+.It Dv CONF_MFLAGS_IGNORE_ERRORS
+Ignore errors returned by individual configuration modules.
+By default, the first module error is considered fatal and no further
+modules are loaded.
+.It Dv CONF_MFLAGS_SILENT
+Do not add any error information.
+By default, all module errors add error information to the error queue.
+.It Dv CONF_MFLAGS_NO_DSO
+Disable loading of configuration modules from DSOs.
+.It Dv CONF_MFLAGS_IGNORE_MISSING_FILE
+Let
+.Fn CONF_modules_load_file
+ignore missing configuration files.
+By default, a missing configuration file returns an error.
+.El
+.Sh RETURN VALUES
+These functions return 1 for success and zero or a negative value for
+failure.
+If module errors are not ignored, the return code will reflect the return
+value of the failing module (this will always be zero or negative).
+.Sh SEE ALSO
+.Xr CONF_free 3 ,
+.Xr ERR 3 ,
+.Xr OPENSSL_config 3
+.Sh HISTORY
+.Fn CONF_modules_load_file
+and
+.Fn CONF_modules_load
+first appeared in OpenSSL 0.9.7.
diff --git a/lib/libcrypto/man/CRYPTO_set_ex_data.3 b/lib/libcrypto/man/CRYPTO_set_ex_data.3
new file mode 100644
index 00000000000..1be42dedd97
--- /dev/null
+++ b/lib/libcrypto/man/CRYPTO_set_ex_data.3
@@ -0,0 +1,70 @@
+.Dd $Mdocdate: November 11 2015 $
+.Dt CRYPTO_SET_EX_DATA 3
+.Os
+.Sh NAME
+.Nm CRYPTO_set_ex_data ,
+.Nm CRYPTO_get_ex_data
+.Nd internal application specific data functions
+.Sh SYNOPSIS
+.In openssl/crypto.h
+.Ft int
+.Fo CRYPTO_set_ex_data
+.Fa "CRYPTO_EX_DATA *r"
+.Fa "int idx"
+.Fa "void *arg"
+.Fc
+.Ft void *
+.Fo CRYPTO_get_ex_data
+.Fa "CRYPTO_EX_DATA *r"
+.Fa "int idx"
+.Fc
+.Sh DESCRIPTION
+Several OpenSSL structures can have application specific data attached
+to them.
+These functions are used internally by OpenSSL to manipulate application
+specific data attached to a specific structure.
+.Pp
+These functions should only be used by applications to manipulate
+.Vt CRYPTO_EX_DATA
+structures passed to the
+.Fn new_func ,
+.Fn free_func ,
+and
+.Fn dup_func
+callbacks: as passed to
+.Xr RSA_get_ex_new_index 3
+for example.
+.Pp
+.Fn CRYPTO_set_ex_data
+is used to set application specific data, the data is supplied in the
+.Fa arg
+parameter and its precise meaning is up to the application.
+.Pp
+.Fn CRYPTO_get_ex_data
+is used to retrieve application specific data.
+The data is returned to the application, this will be the same value as
+supplied to a previous
+.Fn CRYPTO_set_ex_data
+call.
+.Sh RETURN VALUES
+.Fn CRYPTO_set_ex_data
+returns 1 on success or 0 on failure.
+.Pp
+.Fn CRYPTO_get_ex_data
+returns the application data or 0 on failure.
+0 may also be valid application data but currently it can only fail if
+given an invalid
+.Fa idx
+parameter.
+.Pp
+On failure an error code can be obtained from
+.Xr ERR_get_error 3 .
+.Sh SEE ALSO
+.Xr DH_get_ex_new_index 3 ,
+.Xr DSA_get_ex_new_index 3 ,
+.Xr RSA_get_ex_new_index 3
+.Sh HISTORY
+.Fn CRYPTO_set_ex_data
+and
+.Fn CRYPTO_get_ex_data
+have been available since SSLeay 0.9.0.
diff --git a/lib/libcrypto/man/CRYPTO_set_locking_callback.3 b/lib/libcrypto/man/CRYPTO_set_locking_callback.3
new file mode 100644
index 00000000000..d6290852b5a
--- /dev/null
+++ b/lib/libcrypto/man/CRYPTO_set_locking_callback.3
@@ -0,0 +1,321 @@
+.Dd $Mdocdate: November 11 2015 $
+.Dt CRYPTO_SET_LOCKING_CALLBACK 3
+.Os
+.Sh NAME
+.Nm CRYPTO_THREADID_set_callback ,
+.Nm CRYPTO_THREADID_get_callback ,
+.Nm CRYPTO_THREADID_current ,
+.Nm CRYPTO_THREADID_cmp ,
+.Nm CRYPTO_THREADID_cpy ,
+.Nm CRYPTO_THREADID_hash ,
+.Nm CRYPTO_set_locking_callback ,
+.Nm CRYPTO_num_locks ,
+.Nm CRYPTO_set_dynlock_create_callback ,
+.Nm CRYPTO_set_dynlock_lock_callback ,
+.Nm CRYPTO_set_dynlock_destroy_callback ,
+.Nm CRYPTO_get_new_dynlockid ,
+.Nm CRYPTO_destroy_dynlockid ,
+.Nm CRYPTO_lock
+.Nd OpenSSL thread support
+.Sh SYNOPSIS
+.In openssl/crypto.h
+.Bd -literal
+/* Don't use this structure directly. */
+typedef struct crypto_threadid_st {
+	void *ptr;
+	unsigned long val;
+} CRYPTO_THREADID;
+/* Only use CRYPTO_THREADID_set_[numeric|pointer]() within callbacks */
+.Ed
+.Pp
+.Ft void
+.Fo CRYPTO_THREADID_set_numeric
+.Fa "CRYPTO_THREADID *id"
+.Fa "unsigned long val"
+.Fc
+.Ft void
+.Fo CRYPTO_THREADID_set_pointer
+.Fa "CRYPTO_THREADID *id"
+.Fa "void *ptr"
+.Fc
+.Ft int
+.Fo CRYPTO_THREADID_set_callback
+.Fa "void (*threadid_func)(CRYPTO_THREADID *)"
+.Fc
+.Ft void
+.Fo "(*CRYPTO_THREADID_get_callback(void))"
+.Fa "CRYPTO_THREADID *"
+.Fc
+.Ft void
+.Fo CRYPTO_THREADID_current
+.Fa "CRYPTO_THREADID *id"
+.Fc
+.Ft int
+.Fo CRYPTO_THREADID_cmp
+.Fa "const CRYPTO_THREADID *a"
+.Fa "const CRYPTO_THREADID *b"
+.Fc
+.Ft void
+.Fo CRYPTO_THREADID_cpy
+.Fa "CRYPTO_THREADID *dest"
+.Fa "const CRYPTO_THREADID *src"
+.Fc
+.Ft unsigned long
+.Fo CRYPTO_THREADID_hash
+.Fa "const CRYPTO_THREADID *id"
+.Fc
+.Ft int
+.Fo CRYPTO_num_locks
+.Fa void
+.Fc
+.Bd -literal
+/* struct CRYPTO_dynlock_value needs to be defined by the user */
+struct CRYPTO_dynlock_value;
+.Ed
+.Pp
+.Ft void
+.Fo CRYPTO_set_dynlock_create_callback
+.Fa "struct CRYPTO_dynlock_value *"
+.Fa "(*dyn_create_function)(char *file, int line)"
+.Fc
+.Ft void
+.Fo CRYPTO_set_dynlock_lock_callback
+.Fa "void (*dyn_lock_function)(int mode, struct CRYPTO_dynlock_value *l,\
+ const char *file, int line)"
+.Fc
+.Ft void
+.Fo CRYPTO_set_dynlock_destroy_callback
+.Fa "void (*dyn_destroy_function)(struct CRYPTO_dynlock_value *l,\
+ const char *file, int line)"
+.Fc
+.Ft int
+.Fo CRYPTO_get_new_dynlockid
+.Fa void
+.Fc
+.Ft void
+.Fo CRYPTO_destroy_dynlockid
+.Fa "int i"
+.Fc
+.Ft void
+.Fo CRYPTO_lock
+.Fa "int mode"
+.Fa "int n"
+.Fa "const char *file"
+.Fa "int line"
+.Fc
+.Bd -literal
+#define	CRYPTO_w_lock(type) \e
+	CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE, type, __FILE__, __LINE__)
+#define	CRYPTO_w_unlock(type) \e
+	CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE, type, __FILE__, __LINE__)
+#define	CRYPTO_r_lock(type) \e
+	CRYPTO_lock(CRYPTO_LOCK|CRYPTO_READ, type, __FILE__, __LINE__)
+#define	CRYPTO_r_unlock(type) \e
+	CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_READ, type, __FILE__, __LINE__)
+#define	CRYPTO_add(addr,amount,type) \e
+	CRYPTO_add_lock(addr, amount, type, __FILE__, __LINE__)
+.Ed
+.Sh DESCRIPTION
+OpenSSL can safely be used in multi-threaded applications provided that
+at least two callback functions are set,
+.Fn locking_function
+and
+.Fn threadid_func .
+.Pp
+.Fo locking_function
+.Fa "int mode"
+.Fa "int n"
+.Fa "const char *file"
+.Fa "int line"
+.Fc
+is needed to perform locking on shared data structures.
+Note that OpenSSL uses a number of global data structures that will be
+implicitly shared whenever multiple threads use OpenSSL.
+Multi-threaded applications will crash at random if it is not set.
+.Pp
+.Fn locking_function
+must be able to handle up to
+.Fn CRYPTO_num_locks
+different mutex locks.
+It sets the
+.Fa n Ns -th
+lock if
+.Fa mode
+includes
+.Dv CRYPTO_LOCK ,
+and releases it otherwise.
+.Pp
+.Fa file
+and
+.Fa line
+are the file number of the function setting the lock.
+They can be useful for debugging.
+.Pp
+.Fo threadid_func
+.Fa "CRYPTO_THREADID *id"
+.Fc
+is needed to record the currently-executing thread's identifier into
+.Fa id .
+The implementation of this callback should not fill in
+.Fa id
+directly, but should use
+.Fn CRYPTO_THREADID_set_numeric
+if thread IDs are numeric, or
+.Fn CRYPTO_THREADID_set_pointer
+if they are pointer-based.
+If the application does not register such a callback using
+.Fn CRYPTO_THREADID_set_callback ,
+then a default implementation is used - on Windows and BeOS this uses
+the system's default thread identifying APIs, and on all other platforms
+it uses the address of
+.Va errno .
+The latter is satisfactory for thread-safety if and only if the platform
+has a thread-local error number facility.
+.Pp
+Once
+.Fn threadid_func
+is registered, or if the built-in default implementation is to be used,
+.Bl -bullet
+.It
+.Fn CRYPTO_THREADID_current
+records the currently-executing thread ID into the given
+.Fa id
+object.
+.It
+.Fn CRYPTO_THREADID_cmp
+compares two thread IDs (returning zero for equality, i.e. the same
+semantics as
+.Xr memcmp 3 ) .
+.It
+.Fn CRYPTO_THREADID_cpy
+duplicates a thread ID value.
+.It
+.Fn CRYPTO_THREADID_hash
+returns a numeric value usable as a hash-table key.
+This is usually the exact numeric or pointer-based thread ID used
+internally, however this also handles the unusual case where pointers
+are larger than
+.Vt long
+variables and the platform's thread IDs are pointer-based \(em in
+this case, mixing is done to attempt to produce a unique numeric
+value even though it is not as wide as the platform's true thread
+IDs.
+.El
+.Pp
+Additionally, OpenSSL supports dynamic locks, and sometimes, some parts
+of OpenSSL need it for better performance.
+To enable this, the following is required:
+.Bl -bullet
+.It
+Three additional callback functions,
+.Fn dyn_create_function ,
+.Fn dyn_lock_function ,
+and
+.Fn dyn_destroy_function .
+.It
+A structure defined with the data that each lock needs to handle.
+.El
+.Pp
+.Vt struct CRYPTO_dynlock_value
+has to be defined to contain whatever structure is needed to handle locks.
+.Pp
+.Fo dyn_create_function
+.Fa "const char *file"
+.Fa "int line"
+.Fc
+is needed to create a lock.
+Multi-threaded applications might crash at random if it is not set.
+.Pp
+.Fo dyn_lock_function
+.Fa "int mode"
+.Fa "CRYPTO_dynlock *l"
+.Fa "const char *file"
+.Fa "int line"
+.Fc
+is needed to perform locking off dynamic lock numbered n.
+Multi-threaded applications might crash at random if it is not set.
+.Pp
+.Fo dyn_destroy_function
+.Fa "CRYPTO_dynlock *l"
+.Fa "const char *file"
+.Fa "int line"
+.Fc
+is needed to destroy the lock
+.Fa l .
+Multi-threaded applications might crash at random if it is not set.
+.Pp
+.Fn CRYPTO_get_new_dynlockid
+is used to create locks.
+It will call
+.Fn dyn_create_function
+for the actual creation.
+.Pp
+.Fn CRYPTO_destroy_dynlockid
+is used to destroy locks.
+It will call
+.Fn dyn_destroy_function
+for the actual destruction.
+.Pp
+.Fn CRYPTO_lock
+is used to lock and unlock the locks.
+.Fa mode
+is a bitfield describing what should be done with the lock.
+.Fa n
+is the number of the lock as returned from
+.Fn CRYPTO_get_new_dynlockid .
+.Fa mode
+can be combined from the following values.
+These values are pairwise exclusive, with undefined behaviour if misused
+(for example,
+.Dv CRYPTO_READ
+and
+.Dv CRYPTO_WRITE
+should not be used together):
+.Bd -literal -offset indent
+CRYPTO_LOCK	0x01
+CRYPTO_UNLOCK	0x02
+CRYPTO_READ	0x04
+CRYPTO_WRITE	0x08
+.Ed
+.Sh RETURN VALUES
+.Fn CRYPTO_num_locks
+returns the required number of locks.
+.Pp
+.Fn CRYPTO_get_new_dynlockid
+returns the index to the newly created lock.
+.Pp
+The other functions return no values.
+.Sh NOTES
+You can find out if OpenSSL was configured with thread support:
+.Bd -literal -offset indent
+#define OPENSSL_THREAD_DEFINES
+#include <openssl/opensslconf.h>
+#if defined(OPENSSL_THREADS)
+	/* thread support enabled */
+#else
+	/* no thread support */
+#endif
+.Ed
+.Pp
+Also, dynamic locks are currently not used internally by OpenSSL, but
+may do so in the future.
+.Sh EXAMPLES
+.Pa crypto/threads/mttest.c
+shows examples of the callback functions on Solaris, Irix and Win32.
+.Sh SEE ALSO
+.Xr crypto 3
+.Sh HISTORY
+.Fn CRYPTO_set_locking_callback
+is available in all versions of SSLeay and OpenSSL.
+.Fn CRYPTO_num_locks
+was added in OpenSSL 0.9.4.
+All functions dealing with dynamic locks were added in OpenSSL 0.9.5b-dev.
+.Vt CRYPTO_THREADID
+and associated functions were introduced in OpenSSL 1.0.0 to replace
+(actually, deprecate) the previous
+.Fn CRYPTO_set_id_callback ,
+.Fn CRYPTO_get_id_callback ,
+and
+.Fn CRYPTO_thread_id
+functions which assumed thread IDs to always be represented by
+.Vt unsigned long .
diff --git a/lib/libcrypto/man/Makefile b/lib/libcrypto/man/Makefile
index 2c5ffbb8e43..ef5c1f97275 100644
--- a/lib/libcrypto/man/Makefile
+++ b/lib/libcrypto/man/Makefile
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.26 2015/11/11 18:36:48 schwarze Exp $
+# $OpenBSD: Makefile,v 1.27 2015/11/11 21:15:15 schwarze Exp $
 
 .include <bsd.own.mk>		# for NOMAN
 
@@ -69,13 +69,14 @@ MAN=	\
 	CMS_uncompress.3 \
 	CMS_verify.3 \
 	CMS_verify_receipt.3 \
-	EVP_AEAD_CTX_init.3 \
-
-GENMAN= \
 	CONF_modules_free.3 \
 	CONF_modules_load_file.3 \
 	CRYPTO_set_ex_data.3 \
 	CRYPTO_set_locking_callback.3 \
+	EVP_AEAD_CTX_init.3 \
+	crypto.3 \
+
+GENMAN= \
 	DES_set_key.3 \
 	DH_generate_key.3 \
 	DH_generate_parameters.3 \
@@ -188,7 +189,6 @@ GENMAN= \
 	X509_verify_cert.3 \
 	bn.3 \
 	bn_internal.3 \
-	crypto.3 \
 	d2i_ASN1_OBJECT.3 \
 	d2i_DHparams.3 \
 	d2i_DSAPublicKey.3 \
diff --git a/lib/libcrypto/man/crypto.3 b/lib/libcrypto/man/crypto.3
new file mode 100644
index 00000000000..24d4ed19795
--- /dev/null
+++ b/lib/libcrypto/man/crypto.3
@@ -0,0 +1,104 @@
+.Dd $Mdocdate: November 11 2015 $
+.Dt CRYPTO 3
+.Os
+.Sh NAME
+.Nm crypto
+.Nd OpenSSL cryptographic library
+.Sh DESCRIPTION
+The OpenSSL crypto library implements a wide range of cryptographic
+algorithms used in various Internet standards.
+The services provided by this library are used by the OpenSSL
+implementations of SSL, TLS and S/MIME, and they have also been used to
+implement SSH, OpenPGP, and other cryptographic standards.
+.Sh OVERVIEW
+.Sy libcrypto
+consists of a number of sub-libraries that implement the individual
+algorithms.
+.Pp
+The functionality includes symmetric encryption, public key cryptography
+and key agreement, certificate handling, cryptographic hash functions
+and a cryptographic pseudo-random number generator.
+.Bl -tag -width Ds
+.It SYMMETRIC CIPHERS
+.Xr blowfish 3 ,
+cast,
+.Xr des 3 ,
+idea,
+rc2,
+.Xr rc4 3 ,
+rc5
+.It PUBLIC KEY CRYPTOGRAPHY AND KEY AGREEMENT
+.Xr dsa 3 ,
+.Xr dh 3 ,
+.Xr rsa 3
+.It CERTIFICATES
+.Xr x509 3 ,
+x509v3
+.It AUTHENTICATION CODES, HASH FUNCTIONS
+.Xr hmac 3 ,
+.Xr MD2 3 ,
+.Xr MD4 3 ,
+.Xr MD5 3 ,
+.Xr ripemd 3 ,
+.Xr sha 3
+.It AUXILIARY FUNCTIONS
+.Xr ERR 3 ,
+.Xr threads 3 ,
+.Xr rand 3 ,
+.Xr OPENSSL_VERSION_NUMBER 3
+.It INPUT/OUTPUT, DATA ENCODING
+asn1,
+.Xr bio 3 ,
+.Xr evp 3 ,
+.Xr pem 3 ,
+pkcs7,
+pkcs12
+.It INTERNAL FUNCTIONS
+.Xr bn 3 ,
+.Xr buffer 3 ,
+.Xr ec 3 ,
+.Xr lhash 3 ,
+objects,
+stack,
+txt_db
+.El
+.Sh NOTES
+Some of the newer functions follow a naming convention using the numbers
+.Sq 0
+and
+.Sq 1 .
+For example the functions:
+.Pp
+.Ft int
+.Fo X509_CRL_add0_revoked
+.Fa "X509_CRL *crl"
+.Fa "X509_REVOKED *rev"
+.Fc
+.br
+.Ft int
+.Fo X509_add1_trust_object
+.Fa "X509 *x"
+.Fa "ASN1_OBJECT *obj"
+.Fc
+.Pp
+The
+.Sq 0
+version uses the supplied structure pointer directly in the parent and
+it will be freed up when the parent is freed.
+In the above example
+.Fa crl
+would be freed but
+.Fa rev
+would not.
+.Pp
+The
+.Sq 1
+function uses a copy of the supplied structure pointer (or in some cases
+increases its link count) in the parent and so both
+.Pf ( Fa x
+and
+.Fa obj
+above) should be freed up.
+.Sh SEE ALSO
+.Xr openssl 1 ,
+.Xr ssl 3