Specify lo_write() to take a _const_ buffer, to match documentation.

6 files changed, 6 insertions, 6 deletions

diff --git a/src/backend/libpq/be-fsstubs.c b/src/backend/libpq/be-fsstubs.c
index fb30dc82ac..6a48496d9e 100644
--- a/src/backend/libpq/be-fsstubs.c
+++ b/src/backend/libpq/be-fsstubs.c
@@ -165,7 +165,7 @@ lo_read(int fd, char *buf, int len)
 }
 
 int
-lo_write(int fd, char *buf, int len)
+lo_write(int fd, const char *buf, int len)
 {
 	int			status;
 
diff --git a/src/backend/storage/large_object/inv_api.c b/src/backend/storage/large_object/inv_api.c
index b3ad6460f9..8ba373631f 100644
--- a/src/backend/storage/large_object/inv_api.c
+++ b/src/backend/storage/large_object/inv_api.c
@@ -488,7 +488,7 @@ inv_read(LargeObjectDesc *obj_desc, char *buf, int nbytes)
 }
 
 int
-inv_write(LargeObjectDesc *obj_desc, char *buf, int nbytes)
+inv_write(LargeObjectDesc *obj_desc, const char *buf, int nbytes)
 {
 	int			nwritten = 0;
 	int			n;
diff --git a/src/include/libpq/be-fsstubs.h b/src/include/libpq/be-fsstubs.h
index 0d5f3fc5fd..6cf6d05df1 100644
--- a/src/include/libpq/be-fsstubs.h
+++ b/src/include/libpq/be-fsstubs.h
@@ -41,7 +41,7 @@ extern Datum lo_unlink(PG_FUNCTION_ARGS);
  * but too late now...
  */
 extern int	lo_read(int fd, char *buf, int len);
-extern int	lo_write(int fd, char *buf, int len);
+extern int	lo_write(int fd, const char *buf, int len);
 
 /*
  * Cleanup LOs at xact commit/abort
diff --git a/src/include/storage/large_object.h b/src/include/storage/large_object.h
index 00146f720c..8239cdb91c 100644
--- a/src/include/storage/large_object.h
+++ b/src/include/storage/large_object.h
@@ -77,6 +77,6 @@ extern int	inv_drop(Oid lobjId);
 extern int	inv_seek(LargeObjectDesc *obj_desc, int offset, int whence);
 extern int	inv_tell(LargeObjectDesc *obj_desc);
 extern int	inv_read(LargeObjectDesc *obj_desc, char *buf, int nbytes);
-extern int	inv_write(LargeObjectDesc *obj_desc, char *buf, int nbytes);
+extern int	inv_write(LargeObjectDesc *obj_desc, const char *buf, int nbytes);
 
 #endif   /* LARGE_OBJECT_H */
diff --git a/src/interfaces/libpq/fe-lobj.c b/src/interfaces/libpq/fe-lobj.c
index 4d79b73712..b620ad4df9 100644
--- a/src/interfaces/libpq/fe-lobj.c
+++ b/src/interfaces/libpq/fe-lobj.c
@@ -172,7 +172,7 @@ lo_read(PGconn *conn, int fd, char *buf, size_t len)
  * returns the number of bytes written, or -1 on failure.
  */
 int
-lo_write(PGconn *conn, int fd, char *buf, size_t len)
+lo_write(PGconn *conn, int fd, const char *buf, size_t len)
 {
 	PQArgBlock	argv[2];
 	PGresult   *res;
diff --git a/src/interfaces/libpq/libpq-fe.h b/src/interfaces/libpq/libpq-fe.h
index d6b4f27133..9cfdc583bb 100644
--- a/src/interfaces/libpq/libpq-fe.h
+++ b/src/interfaces/libpq/libpq-fe.h
@@ -483,7 +483,7 @@ PQprintTuples(const PGresult *res,
 extern int	lo_open(PGconn *conn, Oid lobjId, int mode);
 extern int	lo_close(PGconn *conn, int fd);
 extern int	lo_read(PGconn *conn, int fd, char *buf, size_t len);
-extern int	lo_write(PGconn *conn, int fd, char *buf, size_t len);
+extern int	lo_write(PGconn *conn, int fd, const char *buf, size_t len);
 extern int	lo_lseek(PGconn *conn, int fd, int offset, int whence);
 extern Oid	lo_creat(PGconn *conn, int mode);
 extern Oid	lo_create(PGconn *conn, Oid lobjId);