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Command: ERR_put_error | Section: 3 | Source: OpenBSD | File: ERR_put_error.3
ERR_PUT_ERROR(3) FreeBSD Library Functions Manual ERR_PUT_ERROR(3)
NAME
ERR_put_error - record an OpenSSL error
SYNOPSIS
#include <openssl/err.h>
void
ERR_put_error(int lib, int func, int reason, const char *file, int line);
DESCRIPTION
ERR_put_error() adds an error code to the thread's error queue. It
signals that the error of reason code reason occurred in function func of
library lib, in line number line of file. This function is usually
called by a macro.
ERR_load_strings(3) can be used to register error strings so that the
application can generate human-readable error messages for the error
code.
Each sub-library has a specific macro XXXerr(f, r) that is used to report
errors. Its first argument is a function code XXX_F_*; the second
argument is a reason code XXX_R_*. Function codes are derived from the
function names whereas reason codes consist of textual error
descriptions. For example, the function ssl23_read() reports a
"handshake failure" as follows:
SSLerr(SSL_F_SSL23_READ, SSL_R_SSL_HANDSHAKE_FAILURE);
Function and reason codes should consist of upper case characters,
numbers and underscores only. The error file generation script
translates function codes into function names by looking in the header
files for an appropriate function name. If none is found, it just uses
the capitalized form such as "SSL23_READ" in the above example.
The trailing section of a reason code (after the "_R_") is translated
into lower case and underscores changed to spaces.
Although a library will normally report errors using its own specific
XXXerr() macro, another library's macro can be used. This is normally
only done when a library wants to include ASN.1 code which must use the
ASN1err() macro.
SEE ALSO
ERR(3), ERR_asprintf_error_data(3), ERR_load_strings(3)
HISTORY
ERR_put_error() first appeared in SSLeay 0.4.4 and has been available
since OpenBSD 2.4.
FreeBSD 14.1-RELEASE-p8 August 29, 2024 FreeBSD 14.1-RELEASE-p8