201 lines
6.5 KiB
Groff
Executable File
201 lines
6.5 KiB
Groff
Executable File
.\" Automatically generated by Pod::Man 2.25 (Pod::Simple 3.16)
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.\" ========================================================================
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.\"
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.IX Title "ERR_NEW 3"
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.TH ERR_NEW 3 "2020-03-02" "3.0.0-dev" "OpenSSL"
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.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.\" way too many mistakes in technical documents.
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.if n .ad l
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.nh
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.SH "NAME"
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ERR_new, ERR_set_debug, ERR_set_error, ERR_vset_error
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\&\- Error recording building blocks
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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.Vb 1
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\& #include <openssl/err.h>
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\&
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\& void ERR_new(void);
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\& void ERR_set_debug(const char *file, int line, const char *func);
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\& void ERR_set_error(int lib, int reason, const char *fmt, ...);
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\& void ERR_vset_error(int lib, int reason, const char *fmt, va_list args);
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.Ve
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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The functions described here are generally not used directly, but
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rather through macros such as \fIERR_raise\fR\|(3).
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They can still be useful for anyone that wants to make their own
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macros.
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.PP
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\&\fIERR_new()\fR allocates a new slot in the thread's error queue.
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.PP
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\&\fIERR_set_debug()\fR sets the debug information related to the current
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error in the thread's error queue.
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The values that can be given are the filename \fIfile\fR, line in the
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file \fIline\fR and the name of the function \fIfunc\fR where the error
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occurred.
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The names must be constant, this function will only save away the
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pointers, not copy the strings.
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.PP
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\&\fIERR_set_error()\fR sets the error information, which are the library
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number \fIlib\fR and the reason code \fIreason\fR, and additional data as a
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format string \fIfmt\fR and an arbitrary number of arguments.
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The additional data is processed with \fIBIO_snprintf\fR\|(3) to form the
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additional data string, which is allocated and store in the error
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record.
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.PP
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\&\fIERR_vset_error()\fR works like \fIERR_set_error()\fR, but takes a \fBva_list\fR
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argument instead of a variable number of arguments.
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.SH "RETURN VALUES"
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.IX Header "RETURN VALUES"
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ERR_new, ERR_set_debug, ERR_set_error and ERR_vset_error
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do not return any values.
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.SH "NOTES"
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.IX Header "NOTES"
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The library number is unique to each unit that records errors.
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OpenSSL has a number of pre-allocated ones for its own uses, but
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others may allocate their own library number dynamically with
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\&\fIERR_get_next_error_library\fR\|(3).
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.PP
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Reason codes are unique within each library, and may have an
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associated set of strings as a short description of the reason.
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For dynamically allocated library numbers, reason strings are recorded
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with \fIERR_load_strings\fR\|(3).
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.PP
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Provider authors are supplied with core versions of these functions,
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see \fIprovider\-base\fR\|(7).
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\fIERR_raise\fR\|(3), \fIERR_get_next_error_library\fR\|(3),
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\&\fIERR_load_strings\fR\|(3), \fIBIO_snprintf\fR\|(3), \fIprovider\-base\fR\|(7)
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.SH "COPYRIGHT"
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.IX Header "COPYRIGHT"
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Copyright 2000\-2019 The OpenSSL Project Authors. All Rights Reserved.
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.PP
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Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file \s-1LICENSE\s0 in the source distribution or at
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<https://www.openssl.org/source/license.html>.
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