LIBS=../../libcrypto
SOURCE[../../libcrypto]=\
- err.c err_all.c err_prn.c
+ err_blocks.c err.c err_all.c err_prn.c
--- /dev/null
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <string.h>
+#include <openssl/err.h>
+#include "err_locl.h"
+
+void ERR_new(void)
+{
+ ERR_STATE *es;
+
+ es = ERR_get_state();
+ if (es == NULL)
+ return;
+
+ /* Allocate a slot */
+ err_get_slot(es);
+ err_clear(es, es->top, 0);
+}
+
+void ERR_set_debug(const char *file, int line, const char *func)
+{
+ ERR_STATE *es;
+
+ es = ERR_get_state();
+ if (es == NULL)
+ return;
+
+ err_set_debug(es, es->top, file, line, func);
+}
+
+void ERR_set_error(int lib, int reason, const char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ ERR_vset_error(lib, reason, fmt, args);
+ va_end(args);
+}
+
+void ERR_vset_error(int lib, int reason, const char *fmt, va_list args)
+{
+ ERR_STATE *es;
+ char *buf = NULL;
+ size_t buf_size = 0;
+ unsigned long flags = 0;
+ size_t i;
+
+ es = ERR_get_state();
+ if (es == NULL)
+ return;
+ i = es->top;
+
+ if (fmt != NULL) {
+ int printed_len = 0;
+ char *rbuf = NULL;
+
+ buf = es->err_data[i];
+ buf_size = es->err_data_size[i];
+
+ /*
+ * To protect the string we just grabbed from tampering by other
+ * functions we may call, or to protect them from freeing a pointer
+ * that may no longer be valid at that point, we clear away the
+ * data pointer and the flags. We will set them again at the end
+ * of this function.
+ */
+ es->err_data[i] = NULL;
+ es->err_data_flags[i] = 0;
+
+ /*
+ * Try to maximize the space available. If that fails, we use what
+ * we have.
+ */
+ if (buf_size < ERR_MAX_DATA_SIZE
+ && (rbuf = OPENSSL_realloc(buf, ERR_MAX_DATA_SIZE)) != NULL) {
+ buf = rbuf;
+ buf_size = ERR_MAX_DATA_SIZE;
+ }
+
+ if (buf != NULL) {
+ printed_len = BIO_vsnprintf(buf, ERR_MAX_DATA_SIZE, fmt, args);
+ }
+ if (printed_len < 0)
+ printed_len = 0;
+ buf[printed_len] = '\0';
+
+ /*
+ * Try to reduce the size, but only if we maximized above. If that
+ * fails, we keep what we have.
+ * (According to documentation, realloc leaves the old buffer untouched
+ * if it fails)
+ */
+ if ((rbuf = OPENSSL_realloc(buf, printed_len + 1)) != NULL) {
+ buf = rbuf;
+ buf_size = printed_len + 1;
+ }
+
+ if (buf != NULL)
+ flags = ERR_TXT_MALLOCED | ERR_TXT_STRING;
+ }
+
+ err_clear_data(es, es->top, 0);
+ err_set_error(es, es->top, lib, reason);
+ if (fmt != NULL)
+ err_set_data(es, es->top, buf, buf_size, flags);
+}
--- /dev/null
+=pod
+
+=head1 NAME
+
+ERR_new, ERR_set_debug, ERR_set_error, ERR_vset_error
+- Error recording building blocks
+
+=head1 SYNOPSIS
+
+ #include <openssl/err.h>
+
+ void ERR_new(void);
+ void ERR_set_debug(const char *file, int line, const char *func);
+ void ERR_set_error(int lib, int reason, const char *fmt, ...);
+ void ERR_vset_error(int lib, int reason, const char *fmt, va_list args);
+
+=head1 DESCRIPTION
+
+The functions described here are generally not used directly, but
+rather through macros such as L<ERR_raise(3)>.
+They can still be useful for anyone that wants to make their own
+macros.
+
+ERR_new() allocates a new slot in the thread's error queue.
+
+ERR_set_debug() sets the debug information related to the current
+error in the thread's error queue.
+The values that can be given are the file name I<file>, line in the
+file I<line> and the name of the function I<func> where the error
+occured.
+The names must be constant, this function will only save away the
+pointers, not copy the strings.
+
+ERR_set_error() sets the error information, which are the library
+number I<lib> and the reason code I<reason>, and additional data as a
+format string I<fmt> and an arbitrary number of arguments.
+The additional data is processed with L<BIO_snprintf(3)> to form the
+additional data string, which is allocated and store in the error
+record.
+
+ERR_vset_error() works like ERR_set_error(), but takes a B<va_list>
+argument instead of a variable number of arguments.
+
+=head1 RETURN VALUES
+
+ERR_new, ERR_set_debug, ERR_set_error and ERR_vset_error
+do not return any values.
+
+=head1 NOTES
+
+The library number is unique to each unit that records errors.
+OpenSSL has a number of pre-allocated ones for its own uses, but
+others may allocate their own library number dynamically with
+L<ERR_get_next_error_library(3)>.
+
+Reason codes are unique within each library, and may have an
+associated set of strings as a short description of the reason.
+For dynamically allocated library numbers, reason strings are recorded
+with L<ERR_load_strings(3)>.
+
+Provider authors are supplied with core versions of these functions,
+see L<provider-base(7)>.
+
+=head1 SEE ALSO
+
+L<ERR_raise(3)>, L<ERR_get_next_error_library(3)>,
+L<ERR_load_strings(3)>, L<BIO_snprintf(3)>, L<provider-base(7)>
+
+=head1 COPYRIGHT
+
+Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the Apache License 2.0 (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
DEFINE_LHASH_OF(ERR_STRING_DATA);
+/* 12 lines and some on an 80 column terminal */
+#define ERR_MAX_DATA_SIZE 1024
+
+/* Building blocks */
+void ERR_new(void);
+void ERR_set_debug(const char *file, int line, const char *func);
+void ERR_set_error(int lib, int reason, const char *fmt, ...);
+void ERR_vset_error(int lib, int reason, const char *fmt, va_list args);
+
void ERR_put_error(int lib, int func, int reason, const char *file, int line);
void ERR_put_func_error(int lib, const char *func, int reason,
const char *file, int line);
EVP_MD_do_all_ex 4806 3_0_0 EXIST::FUNCTION:
EVP_KEYEXCH_provider 4807 3_0_0 EXIST::FUNCTION:
OSSL_PROVIDER_available 4808 3_0_0 EXIST::FUNCTION:
+ERR_new 4809 3_0_0 EXIST::FUNCTION:
+ERR_set_debug 4810 3_0_0 EXIST::FUNCTION:
+ERR_set_error 4811 3_0_0 EXIST::FUNCTION:
+ERR_vset_error 4812 3_0_0 EXIST::FUNCTION:
projects / openssl.git / commitdiff