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)
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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)
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