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add krb5_?prepend_error_message()

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This commit is contained in:
Love Hornquist Astrand
2009-10-12 10:23:14 -07:00
parent 33002c449c
commit 1857a8b41c
1 changed files with 62 additions and 0 deletions
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62
lib/krb5/error_string.c
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@@ -104,6 +104,68 @@ krb5_vset_error_message (krb5_context context, krb5_error_code ret,
HEIMDAL_MUTEX_unlock(context->mutex);
}
/**
* Prepend the context full error string for a specific error code.
* The error that is stored should be internationalized.
*
* @param context Kerberos 5 context
* @param ret The error code
* @param fmt Error string for the error code
* @param ... printf(3) style parameters.
*
* @ingroup krb5_error
*/
void KRB5_LIB_FUNCTION
krb5_prepend_error_message(krb5_context context, krb5_error_code ret,
const char *fmt, ...)
__attribute__ ((format (printf, 3, 4)))
{
va_list ap;
va_start(ap, fmt);
krb5_vset_error_message (context, ret, fmt, ap);
va_end(ap);
}
/**
* Prepend the contexts's full error string for a specific error code.
*
* @param context Kerberos 5 context
* @param ret The error code
* @param fmt Error string for the error code
* @param args printf(3) style parameters.
*
* @ingroup krb5_error
*/
void KRB5_LIB_FUNCTION
krb5_vprepend_error_message (krb5_context context, krb5_error_code ret,
const char *fmt, va_list args)
__attribute__ ((format (printf, 3, 0)))
{
char *str, *str2;
HEIMDAL_MUTEX_lock(context->mutex);
if (context->error_code != ret) {
HEIMDAL_MUTEX_unlock(context->mutex);
return;
}
vasprintf(&str, fmt, args);
if (context->error_string) {
int e;
e = asprintf(&str2, "%s: %s", str, context->error_string);
free(context->error_string);
if (e < 0)
context->error_string = NULL;
else
context->error_string = str2;
free(str);
} else
context->error_string = str;
HEIMDAL_MUTEX_unlock(context->mutex);
}
/**
* Return the error message in context. On error or no error string,