ERR_error_string(3)

     ERR_error_string(3)    0.9.6h (2000-09-14)    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

     SYNOPSIS
           #include <openssl/err.h>

           char *ERR_error_string(unsigned long e, char *buf);
           char *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.

     Page 1                                         (printed 1/19/103)

     ERR_error_string(3)    0.9.6h (2000-09-14)    ERR_error_string(3)

     SEE ALSO
          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.

     Page 2                                         (printed 1/19/103)