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Update frontend libpq to remove limits on query lengths,

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error/notice message lengths, and number of fields per tuple.  Add
pqexpbuffer.c/.h, a frontend version of backend's stringinfo module.
This is first step in applying Mike Ansley's long-query patches,
even though he didn't do any of these particular changes...
This commit is contained in:
Tom Lane
1999-08-31 01:37:37 +00:00
parent 130e372b5d
commit ab5cafa5d3
11 changed files with 938 additions and 391 deletions
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77
src/interfaces/libpq/fe-lobj.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-lobj.c,v 1.24 1999/07/19 06:25:39 momjian Exp $
* $Header: /cvsroot/pgsql/src/interfaces/libpq/fe-lobj.c,v 1.25 1999/08/31 01:37:36 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -397,8 +397,9 @@ lo_import(PGconn *conn, char *filename)
#endif
if (fd < 0)
{ /* error */
sprintf(conn->errorMessage,
"lo_import: can't open unix file\"%s\"\n", filename);
printfPQExpBuffer(&conn->errorMessage,
"lo_import: can't open unix file\"%s\"\n",
filename);
return InvalidOid;
}
@ -408,16 +409,18 @@ lo_import(PGconn *conn, char *filename)
lobjOid = lo_creat(conn, INV_READ | INV_WRITE);
if (lobjOid == InvalidOid)
{
sprintf(conn->errorMessage,
"lo_import: can't create inv object for \"%s\"", filename);
printfPQExpBuffer(&conn->errorMessage,
"lo_import: can't create inv object for \"%s\"",
filename);
return InvalidOid;
}
lobj = lo_open(conn, lobjOid, INV_WRITE);
if (lobj == -1)
{
sprintf(conn->errorMessage,
"lo_import: could not open inv object oid %u", lobjOid);
printfPQExpBuffer(&conn->errorMessage,
"lo_import: could not open inv object oid %u",
lobjOid);
return InvalidOid;
}
@ -429,8 +432,9 @@ lo_import(PGconn *conn, char *filename)
tmp = lo_write(conn, lobj, buf, nbytes);
if (tmp < nbytes)
{
sprintf(conn->errorMessage,
"lo_import: error while reading \"%s\"", filename);
printfPQExpBuffer(&conn->errorMessage,
"lo_import: error while reading \"%s\"",
filename);
return InvalidOid;
}
}
@ -461,8 +465,8 @@ lo_export(PGconn *conn, Oid lobjId, char *filename)
lobj = lo_open(conn, lobjId, INV_READ);
if (lobj == -1)
{
sprintf(conn->errorMessage,
"lo_export: can't open inv object %u", lobjId);
printfPQExpBuffer(&conn->errorMessage,
"lo_export: can't open inv object %u", lobjId);
return -1;
}
@ -476,8 +480,9 @@ lo_export(PGconn *conn, Oid lobjId, char *filename)
#endif
if (fd < 0)
{ /* error */
sprintf(conn->errorMessage,
"lo_export: can't open unix file\"%s\"", filename);
printfPQExpBuffer(&conn->errorMessage,
"lo_export: can't open unix file\"%s\"",
filename);
return 0;
}
@ -489,9 +494,9 @@ lo_export(PGconn *conn, Oid lobjId, char *filename)
tmp = write(fd, buf, nbytes);
if (tmp < nbytes)
{
sprintf(conn->errorMessage,
"lo_export: error while writing \"%s\"",
filename);
printfPQExpBuffer(&conn->errorMessage,
"lo_export: error while writing \"%s\"",
filename);
return -1;
}
}
@ -527,8 +532,8 @@ lo_initialize(PGconn *conn)
lobjfuncs = (PGlobjfuncs *) malloc(sizeof(PGlobjfuncs));
if (lobjfuncs == (PGlobjfuncs *) NULL)
{
strcpy(conn->errorMessage,
"FATAL: malloc() failed in lo_initialize()\n");
printfPQExpBuffer(&conn->errorMessage,
"FATAL: malloc() failed in lo_initialize()\n");
return -1;
}
MemSet((char *) lobjfuncs, 0, sizeof(PGlobjfuncs));
@ -556,8 +561,8 @@ lo_initialize(PGconn *conn)
{
free(lobjfuncs);
PQclear(res);
strcpy(conn->errorMessage,
"ERROR: SELECT didn't return data in lo_initialize()\n");
printfPQExpBuffer(&conn->errorMessage,
"ERROR: SELECT didn't return data in lo_initialize()\n");
return -1;
}
@ -596,57 +601,57 @@ lo_initialize(PGconn *conn)
*/
if (lobjfuncs->fn_lo_open == 0)
{
strcpy(conn->errorMessage,
"ERROR: Cannot determine OID for function lo_open\n");
printfPQExpBuffer(&conn->errorMessage,
"ERROR: Cannot determine OID for function lo_open\n");
free(lobjfuncs);
return -1;
}
if (lobjfuncs->fn_lo_close == 0)
{
strcpy(conn->errorMessage,
"ERROR: Cannot determine OID for function lo_close\n");
printfPQExpBuffer(&conn->errorMessage,
"ERROR: Cannot determine OID for function lo_close\n");
free(lobjfuncs);
return -1;
}
if (lobjfuncs->fn_lo_creat == 0)
{
strcpy(conn->errorMessage,
"ERROR: Cannot determine OID for function lo_creat\n");
printfPQExpBuffer(&conn->errorMessage,
"ERROR: Cannot determine OID for function lo_creat\n");
free(lobjfuncs);
return -1;
}
if (lobjfuncs->fn_lo_unlink == 0)
{
strcpy(conn->errorMessage,
"ERROR: Cannot determine OID for function lo_unlink\n");
printfPQExpBuffer(&conn->errorMessage,
"ERROR: Cannot determine OID for function lo_unlink\n");
free(lobjfuncs);
return -1;
}
if (lobjfuncs->fn_lo_lseek == 0)
{
strcpy(conn->errorMessage,
"ERROR: Cannot determine OID for function lo_lseek\n");
printfPQExpBuffer(&conn->errorMessage,
"ERROR: Cannot determine OID for function lo_lseek\n");
free(lobjfuncs);
return -1;
}
if (lobjfuncs->fn_lo_tell == 0)
{
strcpy(conn->errorMessage,
"ERROR: Cannot determine OID for function lo_tell\n");
printfPQExpBuffer(&conn->errorMessage,
"ERROR: Cannot determine OID for function lo_tell\n");
free(lobjfuncs);
return -1;
}
if (lobjfuncs->fn_lo_read == 0)
{
strcpy(conn->errorMessage,
"ERROR: Cannot determine OID for function loread\n");
printfPQExpBuffer(&conn->errorMessage,
"ERROR: Cannot determine OID for function loread\n");
free(lobjfuncs);
return -1;
}
if (lobjfuncs->fn_lo_write == 0)
{
strcpy(conn->errorMessage,
"ERROR: Cannot determine OID for function lowrite\n");
printfPQExpBuffer(&conn->errorMessage,
"ERROR: Cannot determine OID for function lowrite\n");
free(lobjfuncs);
return -1;
}