A local copy of OpenSSL from GitHub
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Dr. David von Oheimb ed4a9b15d9 replace all BIO_R_NULL_PARAMETER by ERR_R_PASSED_NULL_PARAMETER 1 year ago
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README.md Fix many MarkDown issues in {NOTES*,README*,HACKING,LICENSE}.md files 2 years ago
build.info Modify the ERR init functions to use the internal ERR string loaders 2 years ago
err.c Use centralized fetching errors 1 year ago
err_all.c Drop OPENSSL_NO_RSA everywhere 1 year ago
err_all_legacy.c Fix no-err 1 year ago
err_blocks.c Reorganize local header files 3 years ago
err_local.h ERR: Restore the similarity of ERR_print_error_cb() and ERR_error_string_n() 1 year ago
err_prn.c ERR: Restore the similarity of ERR_print_error_cb() and ERR_error_string_n() 1 year ago
openssl.ec ERR: Modify util/mkerr.pl to produce internal err string loaders 2 years ago
openssl.txt replace all BIO_R_NULL_PARAMETER by ERR_R_PASSED_NULL_PARAMETER 1 year ago

README.md

Adding new libraries

When adding a new sub-library to OpenSSL, assign it a library number ERR_LIB_XXX, define a macro XXXerr() (both in err.h), add its name to ERR_str_libraries[] (in crypto/err/err.c), and add ERR_load_XXX_strings() to the ERR_load_crypto_strings() function (in crypto/err/err_all.c). Finally, add an entry:

L      XXX     xxx.h   xxx_err.c

to crypto/err/openssl.ec, and add xxx_err.c to the Makefile. Running make errors will then generate a file xxx_err.c, and add all error codes used in the library to xxx.h.

Additionally the library include file must have a certain form. Typically it will initially look like this:

#ifndef HEADER_XXX_H
#define HEADER_XXX_H

#ifdef __cplusplus
extern "C" {
#endif

/* Include files */

#include <openssl/bio.h>
#include <openssl/x509.h>

/* Macros, structures and function prototypes */


/* BEGIN ERROR CODES */

The BEGIN ERROR CODES sequence is used by the error code generation script as the point to place new error codes, any text after this point will be overwritten when make errors is run. The closing #endif etc will be automatically added by the script.

The generated C error code file xxx_err.c will load the header files stdio.h, openssl/err.h and openssl/xxx.h so the header file must load any additional header files containing any definitions it uses.