From c5db00dc30e0513dc17ad8aefe54c807f55ec967 Mon Sep 17 00:00:00 2001 From: Martin Sebor Date: Thu, 8 Oct 2020 12:53:09 -0600 Subject: [PATCH] sunrpc: Adjust RPC function declarations to match Sun's (bug 26686] Building Glibc with the latest GCC 11 shows a number of instances of the new -Warray-parameter warning designed to encourage consistency in the forms of array arguments in redeclarations of the same function (and, ultimately, to enable the detection of out of bounds accesses via such arguments). To avoid the subset of these warnings for the RPC APIs, this patch changes the declarations of these functions to match both their definitions and the Oracle RPC documentation. Besides avoiding the -Warray-parameter warnings the effect of this change is for GCC to issue warnings when either the functions are passed an array with fewer than MAXNETNAMELEN + 1 elements, or when the functions themselves access elements outside the array bounds. --- sunrpc/netname.c | 5 ++--- sunrpc/rpc/auth.h | 8 +++++--- 2 files changed, 7 insertions(+), 6 deletions(-) diff --git a/sunrpc/netname.c b/sunrpc/netname.c index 61d82ca31a..24ee519e42 100644 --- a/sunrpc/netname.c +++ b/sunrpc/netname.c @@ -142,7 +142,7 @@ typedef int (*netname2user_function) (const char netname[MAXNETNAMELEN + 1], uid_t *, gid_t *, int *, gid_t *); int -netname2user (const char netname[MAXNETNAMELEN + 1], uid_t * uidp, gid_t * gidp, +netname2user (const char *netname, uid_t * uidp, gid_t * gidp, int *gidlenp, gid_t * gidlist) { static service_user *startp; @@ -189,8 +189,7 @@ libc_hidden_nolink_sunrpc (netname2user, GLIBC_2_1) #endif int -netname2host (const char netname[MAXNETNAMELEN + 1], char *hostname, - const int hostlen) +netname2host (const char *netname, char *hostname, const int hostlen) { char *p1, *p2; diff --git a/sunrpc/rpc/auth.h b/sunrpc/rpc/auth.h index e01b077214..0b46408890 100644 --- a/sunrpc/rpc/auth.h +++ b/sunrpc/rpc/auth.h @@ -179,9 +179,11 @@ extern AUTH *authdes_pk_create (const char *, netobj *, u_int, * Netname manipulating functions * */ -extern int getnetname (char *) __THROW; -extern int host2netname (char *, const char *, const char *) __THROW; -extern int user2netname (char *, const uid_t, const char *) __THROW; +extern int getnetname (char [MAXNETNAMELEN + 1]) __THROW; +extern int host2netname (char [MAXNETNAMELEN + 1], const char *, + const char *) __THROW; +extern int user2netname (char [MAXNETNAMELEN + 1], const uid_t, + const char *) __THROW; extern int netname2user (const char *, uid_t *, gid_t *, int *, gid_t *) __THROW; extern int netname2host (const char *, char *, const int) __THROW;