diff options
Diffstat (limited to 'third_party/heimdal/lib/hx509/error.c')
| -rw-r--r-- | third_party/heimdal/lib/hx509/error.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/hx509/error.c b/third_party/heimdal/lib/hx509/error.c new file mode 100644 index 0000000..aee4f79 --- /dev/null +++ b/third_party/heimdal/lib/hx509/error.c @@ -0,0 +1,220 @@ +/* + * Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "hx_locl.h" + +/** + * @page page_error Hx509 error reporting functions + * + * See the library functions here: @ref hx509_error + */ + +struct hx509_error_data { + hx509_error next; + int code; + char *msg; +}; + +/** + * Resets the error strings the hx509 context. + * + * @param context A hx509 context. + * + * @ingroup hx509_error + */ + +HX509_LIB_FUNCTION void HX509_LIB_CALL +hx509_clear_error_string(hx509_context context) +{ + if (context) { + heim_release(context->error); + context->error = NULL; + } +} + +/** + * Add an error message to the hx509 context. + * + * @param context A hx509 context. + * @param flags + * - HX509_ERROR_APPEND appends the error string to the old messages + (code is updated). + * @param code error code related to error message + * @param fmt error message format + * @param ap arguments to error message format + * + * @ingroup hx509_error + */ + +HX509_LIB_FUNCTION void HX509_LIB_CALL +hx509_set_error_stringv(hx509_context context, int flags, int code, + const char *fmt, va_list ap) +{ + heim_error_t msg; + + if (context == NULL) + return; + + msg = heim_error_createv(code, fmt, ap); + if (msg) { + if (flags & HX509_ERROR_APPEND) + heim_error_append(msg, context->error); + heim_release(context->error); + } + context->error = msg; +} + +/** + * See hx509_set_error_stringv(). + * + * @param context A hx509 context. + * @param flags + * - HX509_ERROR_APPEND appends the error string to the old messages + (code is updated). + * @param code error code related to error message + * @param fmt error message format + * @param ... arguments to error message format + * + * @ingroup hx509_error + */ + +HX509_LIB_FUNCTION void HX509_LIB_CALL +hx509_set_error_string(hx509_context context, int flags, int code, + const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + hx509_set_error_stringv(context, flags, code, fmt, ap); + va_end(ap); +} + +/** + * Sets ENOMEM as the error on a hx509 context. + * + * @param context A hx509 context. + * + * @ingroup hx509_error + */ + +HX509_LIB_FUNCTION int HX509_LIB_CALL +hx509_enomem(hx509_context context) +{ + return heim_enomem(context->hcontext); +} + +/** + * Get an error string from context associated with error_code. + * + * @param context A hx509 context. + * @param error_code Get error message for this error code. + * + * @return error string, free with hx509_free_error_string(). + * + * @ingroup hx509_error + */ + +HX509_LIB_FUNCTION char * HX509_LIB_CALL +hx509_get_error_string(hx509_context context, int error_code) +{ + heim_string_t s = NULL; + const char *cstr = NULL; + char *str; + + if (context) { + if (context->error && + heim_error_get_code(context->error) == error_code && + (s = heim_error_copy_string(context->error))) + cstr = heim_string_get_utf8(s); + + if (cstr == NULL) + cstr = com_right(context->et_list, error_code); + + if (cstr == NULL && error_code > -1) + cstr = strerror(error_code); + } /* else this could be an error in hx509_context_init() */ + + if (cstr == NULL) + cstr = error_message(error_code); /* never returns NULL */ + + str = strdup(cstr); + heim_release(s); + return str; +} + +/** + * Free error string returned by hx509_get_error_string(). + * + * @param str error string to free. + * + * @ingroup hx509_error + */ + +HX509_LIB_FUNCTION void HX509_LIB_CALL +hx509_free_error_string(char *str) +{ + free(str); +} + +/** + * Print error message and fatally exit from error code + * + * @param context A hx509 context. + * @param exit_code exit() code from process. + * @param error_code Error code for the reason to exit. + * @param fmt format string with the exit message. + * @param ... argument to format string. + * + * @ingroup hx509_error + */ + +HX509_LIB_NORETURN_FUNCTION + __attribute__ ((__noreturn__, __format__ (__printf__, 4, 5))) +void HX509_LIB_CALL +hx509_err(hx509_context context, int exit_code, + int error_code, const char *fmt, ...) +{ + va_list ap; + const char *msg; + char *str; + int ret; + + va_start(ap, fmt); + ret = vasprintf(&str, fmt, ap); + va_end(ap); + msg = hx509_get_error_string(context, error_code); + if (msg == NULL) + msg = "no error"; + + errx(exit_code, "%s: %s", ret != -1 ? str : "ENOMEM", msg); +} |