Handle EDQUOT and ENOSPC errors

CHANGES

+5178.	[bug]		Handle EDQUOT (disk quota) and ENOSPC (disk full)
+			errors when writing files. [GL #902]
+
 5177.	[func]		Add the ability to specify in named.conf whether a
 			response-policy zone's SOA record should be added
 			to the additional section (add-soa yes/no). [GL #865]

lib/isc/include/isc/result.h

@@ -85,9 +85,11 @@
 #define ISC_R_WOULDBLOCK		63	/*%< would block */
 #define ISC_R_COMPLETE			64	/*%< complete */
 #define ISC_R_CRYPTOFAILURE		65	/*%< cryptography library failure */
+#define ISC_R_DISCQUOTA			66	/*%< disc quota */
+#define ISC_R_DISCFULL			67	/*%< disc full */
 
 /*% Not a result code: the number of results. */
-#define ISC_R_NRESULTS 			66
+#define ISC_R_NRESULTS 			68
 
 ISC_LANG_BEGINDECLS
 

lib/isc/result.c

@@ -99,6 +99,8 @@ static const char *description[ISC_R_NRESULTS] = {
 	"would block",				/*%< 63 */
 	"complete",				/*%< 64 */
 	"crypto failure",			/*%< 65 */
+	"disc quota",				/*%< 66 */
+	"disc full",				/*%< 67 */
 };
 
 static const char *identifier[ISC_R_NRESULTS] = {
@@ -168,6 +170,8 @@ static const char *identifier[ISC_R_NRESULTS] = {
 	"ISC_R_WOULDBLOCK",
 	"ISC_R_COMPLETE",
 	"ISC_R_CRYPTOFAILURE",
+	"ISC_R_DISCQUOTA",
+	"ISC_R_DISCFULL",
 };
 
 #define ISC_RESULT_RESULTSET			2

lib/isc/unix/errno2result.c

@@ -57,6 +57,12 @@ isc___errno2result(int posixerrno, bool dolog,
 	case ENFILE:
 	case EMFILE:
 		return (ISC_R_TOOMANYOPENFILES);
+#ifdef EDQUOT
+	case EDQUOT:
+		return (ISC_R_DISCQUOTA);
+#endif
+	case ENOSPC:
+		return (ISC_R_DISCFULL);
 #ifdef EOVERFLOW
 	case EOVERFLOW:
 		return (ISC_R_RANGE);

lib/isc/win32/errno2result.c

@@ -63,6 +63,8 @@ isc__errno2resultx(int posixerrno, bool dolog,
 	case EMFILE:
 	case WSAEMFILE:
 		return (ISC_R_TOOMANYOPENFILES);
+	case ENOSPC:
+		return (ISC_R_DISCFULL);
 	case ERROR_CANCELLED:
 		return (ISC_R_CANCELED);
 	case ERROR_CONNECTION_REFUSED: