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Commit3d0d3c0

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Cast to (void *) rather than (int *) when passing int64's to PQfn().
This is a possibly-vain effort to silence a Coverity warning aboutbogus endianness dependency. The code's fine, because it takes careof endianness issues for itself, but Coverity sees an int64 beingpassed to an int* argument and not unreasonably suspects something'swrong. I'm not sure if putting the void* cast in the way will shut itup; but it can't hurt and seems better from a documentation standpointanyway, since the pointer is not used as an int* in this code path.Just for a bit of additional safety, verify that the result lengthis 8 bytes as expected.Back-patch to 9.3 where the code in question was added.
1 parent089e5ab commit3d0d3c0

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‎src/interfaces/libpq/fe-lobj.c

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -290,7 +290,7 @@ lo_read(PGconn *conn, int fd, char *buf, size_t len)
290290
argv[1].u.integer= (int)len;
291291

292292
res=PQfn(conn,conn->lobjfuncs->fn_lo_read,
293-
(int*)buf,&result_len,0,argv,2);
293+
(void*)buf,&result_len,0,argv,2);
294294
if (PQresultStatus(res)==PGRES_COMMAND_OK)
295295
{
296296
PQclear(res);
@@ -441,8 +441,8 @@ lo_lseek64(PGconn *conn, int fd, pg_int64 offset, int whence)
441441
argv[2].u.integer=whence;
442442

443443
res=PQfn(conn,conn->lobjfuncs->fn_lo_lseek64,
444-
(int*)&retval,&result_len,0,argv,3);
445-
if (PQresultStatus(res)==PGRES_COMMAND_OK)
444+
(void*)&retval,&result_len,0,argv,3);
445+
if (PQresultStatus(res)==PGRES_COMMAND_OK&&result_len==8)
446446
{
447447
PQclear(res);
448448
returnlo_ntoh64(retval);
@@ -607,8 +607,8 @@ lo_tell64(PGconn *conn, int fd)
607607
argv[0].u.integer=fd;
608608

609609
res=PQfn(conn,conn->lobjfuncs->fn_lo_tell64,
610-
(int*)&retval,&result_len,0,argv,1);
611-
if (PQresultStatus(res)==PGRES_COMMAND_OK)
610+
(void*)&retval,&result_len,0,argv,1);
611+
if (PQresultStatus(res)==PGRES_COMMAND_OK&&result_len==8)
612612
{
613613
PQclear(res);
614614
returnlo_ntoh64(retval);

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