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Commit76d38cb

Browse files
author
Hiroshi Inoue
committed
Changed the error handling as follows.
1) ERRORs cause an SQL_ERROR and the SQLSTATE='S1000'.2) NOTICEs cause an SQL_SUCCESS_WITH_INFO and the succeeding SQLError() returns the NOTICE message.
1 parent3709a5a commit76d38cb

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4 files changed

+52
-27
lines changed

4 files changed

+52
-27
lines changed

‎src/interfaces/odbc/connection.c

Lines changed: 42 additions & 18 deletions
Original file line numberDiff line numberDiff line change
@@ -916,6 +916,7 @@ CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi)
916916
intid;
917917
SocketClass*sock=self->sock;
918918
intmaxlen;
919+
BOOLmsg_truncated;
919920

920921
/* ERROR_MSG_LENGTH is suffcient */
921922
staticcharmsgbuffer[ERROR_MSG_LENGTH+1];
@@ -1004,6 +1005,8 @@ CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi)
10041005
self->errormsg="No response from backend while receiving a portal query command";
10051006
mylog("send_query: 'C' - %s\n",self->errormsg);
10061007
CC_set_no_trans(self);
1008+
if (res)
1009+
QR_Destructor(res);
10071010
returnNULL;
10081011
}
10091012
else
@@ -1018,7 +1021,8 @@ CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi)
10181021
mylog("send_query: setting cmdbuffer = '%s'\n",cmdbuffer);
10191022

10201023
/* Only save the first command */
1021-
QR_set_status(res,PGRES_COMMAND_OK);
1024+
if (QR_command_successful(res))
1025+
QR_set_status(res,PGRES_COMMAND_OK);
10221026
QR_set_command(res,cmdbuffer);
10231027

10241028
/*
@@ -1049,11 +1053,16 @@ CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi)
10491053
qlog("Command response: '%s'\n",cmdbuffer);
10501054
break;
10511055
case'N':
1052-
SOCK_get_string(sock,cmdbuffer,ERROR_MSG_LENGTH);
1056+
msg_truncated=SOCK_get_string(sock,cmdbuffer,ERROR_MSG_LENGTH);
1057+
if (QR_command_successful(res))
1058+
QR_set_status(res,PGRES_NONFATAL_ERROR);
1059+
QR_set_notice(res,cmdbuffer);/* will dup this string */
10531060
qlog("NOTICE from backend during clear: '%s'\n",cmdbuffer);
1061+
while (msg_truncated)
1062+
msg_truncated=SOCK_get_string(sock,cmdbuffer,ERROR_MSG_LENGTH);
10541063
break;
10551064
case'E':
1056-
SOCK_get_string(sock,cmdbuffer,ERROR_MSG_LENGTH);
1065+
msg_truncated=SOCK_get_string(sock,cmdbuffer,ERROR_MSG_LENGTH);
10571066
qlog("ERROR from backend during clear: '%s'\n",cmdbuffer);
10581067

10591068
/*
@@ -1071,8 +1080,10 @@ CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi)
10711080
}
10721081
else
10731082
self->errornumber=CONNECTION_SERVER_REPORTED_WARNING;
1074-
QR_set_status(res,PGRES_NONFATAL_ERROR);
1083+
QR_set_status(res,PGRES_FATAL_ERROR);
10751084
QR_set_aborted(res, TRUE);
1085+
while (msg_truncated)
1086+
msg_truncated=SOCK_get_string(sock,cmdbuffer,ERROR_MSG_LENGTH);
10761087
break;
10771088
}
10781089
}
@@ -1088,14 +1099,17 @@ CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi)
10881099
case'Z':/* Backend is ready for new query (6.4) */
10891100
break;
10901101
case'N':/* NOTICE: */
1091-
SOCK_get_string(sock,cmdbuffer,ERROR_MSG_LENGTH);
1092-
1093-
res=QR_Constructor();
1094-
QR_set_status(res,PGRES_NONFATAL_ERROR);
1102+
msg_truncated=SOCK_get_string(sock,cmdbuffer,ERROR_MSG_LENGTH);
1103+
if (!res)
1104+
res=QR_Constructor();
1105+
if (QR_command_successful(res))
1106+
QR_set_status(res,PGRES_NONFATAL_ERROR);
10951107
QR_set_notice(res,cmdbuffer);/* will dup this string */
10961108

10971109
mylog("~~~ NOTICE: '%s'\n",cmdbuffer);
10981110
qlog("NOTICE from backend during send_query: '%s'\n",cmdbuffer);
1111+
while (msg_truncated)
1112+
msg_truncated=SOCK_get_string(sock,cmdbuffer,ERROR_MSG_LENGTH);
10991113

11001114
continue;/* dont return a result -- continue
11011115
* reading */
@@ -1107,20 +1121,22 @@ CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi)
11071121
{
11081122
self->errornumber=CONNECTION_BACKEND_CRAZY;
11091123
self->errormsg="Unexpected protocol character from backend (send_query - I)";
1110-
res=QR_Constructor();
1124+
if (!res)
1125+
res=QR_Constructor();
11111126
QR_set_status(res,PGRES_FATAL_ERROR);
11121127
returnres;
11131128
}
11141129
else
11151130
{
11161131
/* We return the empty query */
1117-
res=QR_Constructor();
1132+
if (!res)
1133+
res=QR_Constructor();
11181134
QR_set_status(res,PGRES_EMPTY_QUERY);
11191135
returnres;
11201136
}
11211137
break;
11221138
case'E':
1123-
SOCK_get_string(sock,msgbuffer,ERROR_MSG_LENGTH);
1139+
msg_truncated=SOCK_get_string(sock,msgbuffer,ERROR_MSG_LENGTH);
11241140

11251141
/* Remove a newline */
11261142
if (msgbuffer[0]!='\0'&&msgbuffer[strlen(msgbuffer)-1]=='\n')
@@ -1132,20 +1148,22 @@ CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi)
11321148
qlog("ERROR from backend during send_query: '%s'\n",self->errormsg);
11331149

11341150
/* We should report that an error occured. Zoltan */
1135-
res=QR_Constructor();
1151+
if (!res)
1152+
res=QR_Constructor();
11361153

11371154
if (!strncmp(self->errormsg,"FATAL",5))
11381155
{
11391156
self->errornumber=CONNECTION_SERVER_REPORTED_ERROR;
11401157
CC_set_no_trans(self);
1141-
QR_set_status(res,PGRES_FATAL_ERROR);
11421158
}
11431159
else
11441160
{
11451161
self->errornumber=CONNECTION_SERVER_REPORTED_WARNING;
1146-
QR_set_status(res,PGRES_NONFATAL_ERROR);
11471162
}
1163+
QR_set_status(res,PGRES_FATAL_ERROR);
11481164
QR_set_aborted(res, TRUE);
1165+
while (msg_truncated)
1166+
msg_truncated=SOCK_get_string(sock,cmdbuffer,ERROR_MSG_LENGTH);
11491167

11501168
returnres;/* instead of NULL. Zoltan */
11511169

@@ -1188,19 +1206,25 @@ CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi)
11881206

11891207
returnresult_in;
11901208
case'D':/* Copy in command began successfully */
1191-
res=QR_Constructor();
1192-
QR_set_status(res,PGRES_COPY_IN);
1209+
if (!res)
1210+
res=QR_Constructor();
1211+
if (QR_command_successful(res))
1212+
QR_set_status(res,PGRES_COPY_IN);
11931213
returnres;
11941214
case'B':/* Copy out command began successfully */
1195-
res=QR_Constructor();
1196-
QR_set_status(res,PGRES_COPY_OUT);
1215+
if (!res)
1216+
res=QR_Constructor();
1217+
if (QR_command_successful(res))
1218+
QR_set_status(res,PGRES_COPY_OUT);
11971219
returnres;
11981220
default:
11991221
self->errornumber=CONNECTION_BACKEND_CRAZY;
12001222
self->errormsg="Unexpected protocol character from backend (send_query)";
12011223
CC_set_no_trans(self);
12021224

12031225
mylog("send_query: error - %s\n",self->errormsg);
1226+
if (res)
1227+
QR_Destructor(res);
12041228
returnNULL;
12051229
}
12061230
}

‎src/interfaces/odbc/socket.c

Lines changed: 4 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -195,17 +195,19 @@ SOCK_put_n_char(SocketClass *self, char *buffer, int len)
195195
/*
196196
*bufsize must include room for the null terminator
197197
*will read at most bufsize-1 characters + null.
198+
*returns TRUE if truncation occurs.
198199
*/
199-
void
200+
BOOL
200201
SOCK_get_string(SocketClass*self,char*buffer,intbufsize)
201202
{
202203
registerintlf=0;
203204

204205
for (lf=0;lf<bufsize;lf++)
205206
if (!(buffer[lf]=SOCK_get_next_byte(self)))
206-
return;
207+
return FALSE;
207208

208209
buffer[bufsize-1]='\0';
210+
return TRUE;
209211
}
210212

211213

‎src/interfaces/odbc/socket.h

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -86,7 +86,7 @@ voidSOCK_Destructor(SocketClass *self);
8686
charSOCK_connect_to(SocketClass*self,unsigned shortport,char*hostname);
8787
voidSOCK_get_n_char(SocketClass*self,char*buffer,intlen);
8888
voidSOCK_put_n_char(SocketClass*self,char*buffer,intlen);
89-
voidSOCK_get_string(SocketClass*self,char*buffer,intbufsize);
89+
BOOLSOCK_get_string(SocketClass*self,char*buffer,intbufsize);
9090
voidSOCK_put_string(SocketClass*self,char*string);
9191
intSOCK_get_int(SocketClass*self,shortlen);
9292
voidSOCK_put_int(SocketClass*self,intvalue,shortlen);

‎src/interfaces/odbc/statement.c

Lines changed: 5 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -652,6 +652,8 @@ SC_create_errormsg(StatementClass *self)
652652
sprintf(&msg[pos],";\n%s",sock->errormsg);
653653
}
654654
}
655+
if (!msg[0]&&res&&QR_get_notice(res))
656+
returnQR_get_notice(res);
655657

656658
returnmsg;
657659
}
@@ -1044,14 +1046,11 @@ SC_execute(StatementClass *self)
10441046

10451047
if (self->errornumber==STMT_OK)
10461048
returnSQL_SUCCESS;
1047-
1049+
elseif (self->errornumber==STMT_INFO_ONLY)
1050+
returnSQL_SUCCESS_WITH_INFO;
10481051
else
10491052
{
1050-
/* Modified, 2000-04-29, Zoltan */
1051-
if (self->errornumber==STMT_INFO_ONLY)
1052-
self->errormsg="Error while executing the query (non-fatal)";
1053-
else
1054-
self->errormsg="Unknown error";
1053+
self->errormsg="Error while executing the query";
10551054
SC_log_error(func,"",self);
10561055
returnSQL_ERROR;
10571056
}

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