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37 * @page page_error Hx509 error reporting functions
39 * See the library functions here: @ref hx509_error
42 struct hx509_error_data {
49 free_error_string(hx509_error msg)
52 hx509_error m2 = msg->next;
60 * Resets the error strings the hx509 context.
62 * @param context A hx509 context.
64 * @ingroup hx509_error
68 hx509_clear_error_string(hx509_context context)
71 free_error_string(context->error);
72 context->error = NULL;
77 * Add an error message to the hx509 context.
79 * @param context A hx509 context.
81 * - HX509_ERROR_APPEND appends the error string to the old messages
83 * @param code error code related to error message
84 * @param fmt error message format
85 * @param ap arguments to error message format
87 * @ingroup hx509_error
91 hx509_set_error_stringv(hx509_context context, int flags, int code,
92 const char *fmt, va_list ap)
99 msg = calloc(1, sizeof(*msg));
101 hx509_clear_error_string(context);
105 if (vasprintf(&msg->msg, fmt, ap) == -1) {
106 hx509_clear_error_string(context);
112 if (flags & HX509_ERROR_APPEND) {
113 msg->next = context->error;
114 context->error = msg;
116 free_error_string(context->error);
117 context->error = msg;
122 * See hx509_set_error_stringv().
124 * @param context A hx509 context.
126 * - HX509_ERROR_APPEND appends the error string to the old messages
128 * @param code error code related to error message
129 * @param fmt error message format
130 * @param ... arguments to error message format
132 * @ingroup hx509_error
136 hx509_set_error_string(hx509_context context, int flags, int code,
137 const char *fmt, ...)
142 hx509_set_error_stringv(context, flags, code, fmt, ap);
147 * Get an error string from context associated with error_code.
149 * @param context A hx509 context.
150 * @param error_code Get error message for this error code.
152 * @return error string, free with hx509_free_error_string().
154 * @ingroup hx509_error
158 hx509_get_error_string(hx509_context context, int error_code)
160 struct rk_strpool *p = NULL;
161 hx509_error msg = context->error;
163 if (msg == NULL || msg->code != error_code) {
167 cstr = com_right(context->et_list, error_code);
170 cstr = strerror(error_code);
173 if (asprintf(&str, "<unknown error: %d>", error_code) == -1)
178 for (msg = context->error; msg; msg = msg->next)
179 p = rk_strpoolprintf(p, "%s%s", msg->msg,
180 msg->next != NULL ? "; " : "");
182 return rk_strpoolcollect(p);
186 * Free error string returned by hx509_get_error_string().
188 * @param str error string to free.
190 * @ingroup hx509_error
194 hx509_free_error_string(char *str)
200 * Print error message and fatally exit from error code
202 * @param context A hx509 context.
203 * @param exit_code exit() code from process.
204 * @param error_code Error code for the reason to exit.
205 * @param fmt format string with the exit message.
206 * @param ... argument to format string.
208 * @ingroup hx509_error
212 hx509_err(hx509_context context, int exit_code,
213 int error_code, const char *fmt, ...)
220 vasprintf(&str, fmt, ap);
222 msg = hx509_get_error_string(context, error_code);
226 errx(exit_code, "%s: %s", str, msg);