err_load_crypto_strings(3) [redhat man page]

ERR_load_crypto_strings(3)					      OpenSSL						ERR_load_crypto_strings(3)

NAME

       ERR_load_crypto_strings, SSL_load_error_strings, ERR_free_strings - load and free error strings

SYNOPSIS

	#include <openssl/err.h>

	void ERR_load_crypto_strings(void);
	void ERR_free_strings(void);

	#include <openssl/ssl.h>

	void SSL_load_error_strings(void);

DESCRIPTION

       ERR_load_crypto_strings() registers the error strings for all libcrypto functions. SSL_load_error_strings() does the same, but also regis-
       ters the libssl error strings.

       One of these functions should be called before generating textual error messages. However, this is not required when memory usage is an
       issue.

       ERR_free_strings() frees all previously loaded error strings.

RETURN VALUES

       ERR_load_crypto_strings(), SSL_load_error_strings() and ERR_free_strings() return no values.

SEE ALSO

       err(3), ERR_error_string(3)

HISTORY

       ERR_load_error_strings(), SSL_load_error_strings() and ERR_free_strings() are available in all versions of SSLeay and OpenSSL.

0.9.7a								    2000-02-24						ERR_load_crypto_strings(3)

ERR_error_string(3)						      OpenSSL						       ERR_error_string(3)

NAME

       ERR_error_string, ERR_error_string_n, ERR_lib_error_string, ERR_func_error_string, ERR_reason_error_string - obtain human-readable error
       message

LIBRARY

       libcrypto, -lcrypto

SYNOPSIS

	#include <openssl/err.h>

	char *ERR_error_string(unsigned long e, char *buf);
	void ERR_error_string_n(unsigned long e, char *buf, size_t len);

	const char *ERR_lib_error_string(unsigned long e);
	const char *ERR_func_error_string(unsigned long e);
	const char *ERR_reason_error_string(unsigned long e);

DESCRIPTION

       ERR_error_string() generates a human-readable string representing the error code e, and places it at buf. buf must be at least 120 bytes
       long. If buf is NULL, the error string is placed in a static buffer.  ERR_error_string_n() is a variant of ERR_error_string() that writes
       at most len characters (including the terminating 0) and truncates the string if necessary.  For ERR_error_string_n(), buf may not be NULL.

       The string will have the following format:

	error:[error code]:[library name]:[function name]:[reason string]

       error code is an 8 digit hexadecimal number, library name, function name and reason string are ASCII text.

       ERR_lib_error_string(), ERR_func_error_string() and ERR_reason_error_string() return the library name, function name and reason string
       respectively.

       The OpenSSL error strings should be loaded by calling ERR_load_crypto_strings(3) or, for SSL applications, SSL_load_error_strings(3) first.
       If there is no text string registered for the given error code, the error string will contain the numeric code.

       ERR_print_errors(3) can be used to print all error codes currently in the queue.

RETURN VALUES

       ERR_error_string() returns a pointer to a static buffer containing the string if buf == NULL, buf otherwise.

       ERR_lib_error_string(), ERR_func_error_string() and ERR_reason_error_string() return the strings, and NULL if none is registered for the
       error code.

SEE ALSO

       openssl_err(3), ERR_get_error(3), ERR_load_crypto_strings(3), SSL_load_error_strings(3) ERR_print_errors(3)

HISTORY

       ERR_error_string() is available in all versions of SSLeay and OpenSSL.  ERR_error_string_n() was added in OpenSSL 0.9.6.

1.0.1i								    2009-07-20						       ERR_error_string(3)