xref: /freebsd/secure/lib/libcrypto/man/man3/NCONF_new_ex.3 (revision 174c0ac687ec4ccb0b56ee30d48c0a7b8b9c4e15)
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Title "NCONF_NEW_EX 3ossl"
NCONF_NEW_EX 3ossl "2023-09-19" "3.0.11" "OpenSSL"
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"NAME"
NCONF_new_ex, NCONF_new, NCONF_free, NCONF_default, NCONF_load, NCONF_get0_libctx, NCONF_get_section, NCONF_get_section_names \- functionality to Load and parse configuration files manually
"SYNOPSIS"
Header "SYNOPSIS" .Vb 1 #include <openssl/conf.h> \& typedef struct { char *section; char *name; char *value; } CONF_VALUE; \& CONF *NCONF_new_ex(OSSL_LIB_CTX *libctx, CONF_METHOD *meth); CONF *NCONF_new(CONF_METHOD *meth); void NCONF_free(CONF *conf); CONF_METHOD *NCONF_default(void); int NCONF_load(CONF *conf, const char *file, long *eline); OSSL_LIB_CTX *NCONF_get0_libctx(const CONF *conf); \& STACK_OF(CONF_VALUE) *NCONF_get_section(const CONF *conf, const char *name); STACK_OF(OPENSSL_CSTRING) *NCONF_get_section_names(const CONF *conf); .Ve
"DESCRIPTION"
Header "DESCRIPTION" \fBNCONF_new_ex() creates a new \s-1CONF\s0 object in heap memory and assigns to it a context libctx that can be used during loading. If the method table \fImeth is set to \s-1NULL\s0 then the default value of NCONF_default() is used.

\fBNCONF_new() is similar to NCONF_new_ex() but sets the libctx to \s-1NULL.\s0

\fBNCONF_free() frees the data associated with conf and then frees the conf object.

\fBNCONF_load() parses the file named filename and adds the values found to \fIconf. If an error occurs file and eline list the file and line that the load failed on if they are not \s-1NULL.\s0

\fBNCONF_default() gets the default method table for processing a configuration file.

\fBNCONF_get0_libctx() gets the library context associated with the conf parameter.

\fBNCONF_get_section_names() gets the names of the sections associated with the conf as \s-1STACK_OF\s0(\s-1OPENSSL_CSTRING\s0) strings. The individual strings are associated with the conf and will be invalid after conf is freed. The returned stack must be freed with sk_OPENSSL_CSTRING_free().

\fBNCONF_get_section() gets the config values associated with the conf from the config section name as \s-1STACK_OF\s0(\s-1CONF_VALUE\s0) structures. The returned stack is associated with the conf and will be invalid after conf is freed. It must not be freed by the caller.

"RETURN VALUES"
Header "RETURN VALUES" \fBNCONF_load() returns 1 on success or 0 on error.

\fBNCONF_new_ex() and NCONF_new() return a newly created \s-1CONF\s0 object or \s-1NULL\s0 if an error occurs.

"SEE ALSO"
Header "SEE ALSO" \fBCONF_modules_load_file\|(3),
"HISTORY"
Header "HISTORY" \fBNCONF_new_ex(), NCONF_get0_libctx(), and NCONF_get_section_names() were added in OpenSSL 3.0.
"COPYRIGHT"
Header "COPYRIGHT" Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.