Re: [nfs-utils PATCH v2] Add printf format checking

[Joshua Watt <jpewhacker@gmail.com>]

On 9/20/19 9:05 AM, Steve Dickson wrote:
>
> On 9/16/19 2:33 PM, Joshua Watt wrote:
>> On 9/6/19 3:24 PM, Joshua Watt wrote:
>>> Adds a configure time check for __attribute__((format)) and then uses it
>>> to enforce checking the format of several printf-like functions. Several
>>> invalid uses of format codes that were discovered have now been fixed.
>>>
>>> V2: Fix use of "%jd" format code on an argument that wasn't intmax_t
>> ping?
>>
>>> Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
> Committed... Thanks for the ping!

I haven't seen this commit land in the git repository 
git.linux-nfs.org/projects/steved/nfs-utils.git yet. Is there a 
different one I should be looking at?

Thanks

>
> steved.
>>> ---
>>>    aclocal/ax_gcc_func_attribute.m4 | 238 +++++++++++++++++++++++++++++++
>>>    configure.ac                     |   1 +
>>>    support/include/xcommon.h        |  18 ++-
>>>    support/include/xlog.h           |  20 ++-
>>>    support/nfs/svc_create.c         |   2 +-
>>>    support/nsm/rpc.c                |   2 +-
>>>    utils/exportfs/exportfs.c        |   3 +
>>>    utils/mountd/cache.c             |   3 +-
>>>    utils/mountd/mountd.c            |   4 +-
>>>    utils/nfsdcld/nfsdcld.c          |   2 +-
>>>    utils/nfsdcld/sqlite.c           |   2 +-
>>>    utils/nfsidmap/nfsidmap.c        |   8 +-
>>>    utils/statd/rmtcall.c            |   2 +-
>>>    utils/statd/statd.c              |   2 +-
>>>    utils/statd/svc_run.c            |   5 +-
>>>    15 files changed, 287 insertions(+), 25 deletions(-)
>>>    create mode 100644 aclocal/ax_gcc_func_attribute.m4
>>>
>>> diff --git a/aclocal/ax_gcc_func_attribute.m4 b/aclocal/ax_gcc_func_attribute.m4
>>> new file mode 100644
>>> index 00000000..098c9aad
>>> --- /dev/null
>>> +++ b/aclocal/ax_gcc_func_attribute.m4
>>> @@ -0,0 +1,238 @@
>>> +# ===========================================================================
>>> +#  https://www.gnu.org/software/autoconf-archive/ax_gcc_func_attribute.html
>>> +# ===========================================================================
>>> +#
>>> +# SYNOPSIS
>>> +#
>>> +#   AX_GCC_FUNC_ATTRIBUTE(ATTRIBUTE)
>>> +#
>>> +# DESCRIPTION
>>> +#
>>> +#   This macro checks if the compiler supports one of GCC's function
>>> +#   attributes; many other compilers also provide function attributes with
>>> +#   the same syntax. Compiler warnings are used to detect supported
>>> +#   attributes as unsupported ones are ignored by default so quieting
>>> +#   warnings when using this macro will yield false positives.
>>> +#
>>> +#   The ATTRIBUTE parameter holds the name of the attribute to be checked.
>>> +#
>>> +#   If ATTRIBUTE is supported define HAVE_FUNC_ATTRIBUTE_<ATTRIBUTE>.
>>> +#
>>> +#   The macro caches its result in the ax_cv_have_func_attribute_<attribute>
>>> +#   variable.
>>> +#
>>> +#   The macro currently supports the following function attributes:
>>> +#
>>> +#    alias
>>> +#    aligned
>>> +#    alloc_size
>>> +#    always_inline
>>> +#    artificial
>>> +#    cold
>>> +#    const
>>> +#    constructor
>>> +#    constructor_priority for constructor attribute with priority
>>> +#    deprecated
>>> +#    destructor
>>> +#    dllexport
>>> +#    dllimport
>>> +#    error
>>> +#    externally_visible
>>> +#    fallthrough
>>> +#    flatten
>>> +#    format
>>> +#    format_arg
>>> +#    gnu_inline
>>> +#    hot
>>> +#    ifunc
>>> +#    leaf
>>> +#    malloc
>>> +#    noclone
>>> +#    noinline
>>> +#    nonnull
>>> +#    noreturn
>>> +#    nothrow
>>> +#    optimize
>>> +#    pure
>>> +#    sentinel
>>> +#    sentinel_position
>>> +#    unused
>>> +#    used
>>> +#    visibility
>>> +#    warning
>>> +#    warn_unused_result
>>> +#    weak
>>> +#    weakref
>>> +#
>>> +#   Unsupported function attributes will be tested with a prototype
>>> +#   returning an int and not accepting any arguments and the result of the
>>> +#   check might be wrong or meaningless so use with care.
>>> +#
>>> +# LICENSE
>>> +#
>>> +#   Copyright (c) 2013 Gabriele Svelto <gabriele.svelto@gmail.com>
>>> +#
>>> +#   Copying and distribution of this file, with or without modification, are
>>> +#   permitted in any medium without royalty provided the copyright notice
>>> +#   and this notice are preserved.  This file is offered as-is, without any
>>> +#   warranty.
>>> +
>>> +#serial 9
>>> +
>>> +AC_DEFUN([AX_GCC_FUNC_ATTRIBUTE], [
>>> +    AS_VAR_PUSHDEF([ac_var], [ax_cv_have_func_attribute_$1])
>>> +
>>> +    AC_CACHE_CHECK([for __attribute__(($1))], [ac_var], [
>>> +        AC_LINK_IFELSE([AC_LANG_PROGRAM([
>>> +            m4_case([$1],
>>> +                [alias], [
>>> +                    int foo( void ) { return 0; }
>>> +                    int bar( void ) __attribute__(($1("foo")));
>>> +                ],
>>> +                [aligned], [
>>> +                    int foo( void ) __attribute__(($1(32)));
>>> +                ],
>>> +                [alloc_size], [
>>> +                    void *foo(int a) __attribute__(($1(1)));
>>> +                ],
>>> +                [always_inline], [
>>> +                    inline __attribute__(($1)) int foo( void ) { return 0; }
>>> +                ],
>>> +                [artificial], [
>>> +                    inline __attribute__(($1)) int foo( void ) { return 0; }
>>> +                ],
>>> +                [cold], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [const], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [constructor_priority], [
>>> +                    int foo( void ) __attribute__((__constructor__(65535/2)));
>>> +                ],
>>> +                [constructor], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [deprecated], [
>>> +                    int foo( void ) __attribute__(($1("")));
>>> +                ],
>>> +                [destructor], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [dllexport], [
>>> +                    __attribute__(($1)) int foo( void ) { return 0; }
>>> +                ],
>>> +                [dllimport], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [error], [
>>> +                    int foo( void ) __attribute__(($1("")));
>>> +                ],
>>> +                [externally_visible], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [fallthrough], [
>>> +                    int foo( void ) {switch (0) { case 1: __attribute__(($1)); case 2: break ; }};
>>> +                ],
>>> +                [flatten], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [format], [
>>> +                    int foo(const char *p, ...) __attribute__(($1(printf, 1, 2)));
>>> +                ],
>>> +                [format_arg], [
>>> +                    char *foo(const char *p) __attribute__(($1(1)));
>>> +                ],
>>> +                [gnu_inline], [
>>> +                    inline __attribute__(($1)) int foo( void ) { return 0; }
>>> +                ],
>>> +                [hot], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [ifunc], [
>>> +                    int my_foo( void ) { return 0; }
>>> +                    static int (*resolve_foo(void))(void) { return my_foo; }
>>> +                    int foo( void ) __attribute__(($1("resolve_foo")));
>>> +                ],
>>> +                [leaf], [
>>> +                    __attribute__(($1)) int foo( void ) { return 0; }
>>> +                ],
>>> +                [malloc], [
>>> +                    void *foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [noclone], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [noinline], [
>>> +                    __attribute__(($1)) int foo( void ) { return 0; }
>>> +                ],
>>> +                [nonnull], [
>>> +                    int foo(char *p) __attribute__(($1(1)));
>>> +                ],
>>> +                [noreturn], [
>>> +                    void foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [nothrow], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [optimize], [
>>> +                    __attribute__(($1(3))) int foo( void ) { return 0; }
>>> +                ],
>>> +                [pure], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [sentinel], [
>>> +                    int foo(void *p, ...) __attribute__(($1));
>>> +                ],
>>> +                [sentinel_position], [
>>> +                    int foo(void *p, ...) __attribute__(($1(1)));
>>> +                ],
>>> +                [returns_nonnull], [
>>> +                    void *foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [unused], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [used], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [visibility], [
>>> +                    int foo_def( void ) __attribute__(($1("default")));
>>> +                    int foo_hid( void ) __attribute__(($1("hidden")));
>>> +                    int foo_int( void ) __attribute__(($1("internal")));
>>> +                    int foo_pro( void ) __attribute__(($1("protected")));
>>> +                ],
>>> +                [warning], [
>>> +                    int foo( void ) __attribute__(($1("")));
>>> +                ],
>>> +                [warn_unused_result], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [weak], [
>>> +                    int foo( void ) __attribute__(($1));
>>> +                ],
>>> +                [weakref], [
>>> +                    static int foo( void ) { return 0; }
>>> +                    static int bar( void ) __attribute__(($1("foo")));
>>> +                ],
>>> +                [
>>> +                 m4_warn([syntax], [Unsupported attribute $1, the test may fail])
>>> +                 int foo( void ) __attribute__(($1));
>>> +                ]
>>> +            )], [])
>>> +            ],
>>> +            dnl GCC doesn't exit with an error if an unknown attribute is
>>> +            dnl provided but only outputs a warning, so accept the attribute
>>> +            dnl only if no warning were issued.
>>> +            [AS_IF([test -s conftest.err],
>>> +                [AS_VAR_SET([ac_var], [no])],
>>> +                [AS_VAR_SET([ac_var], [yes])])],
>>> +            [AS_VAR_SET([ac_var], [no])])
>>> +    ])
>>> +
>>> +    AS_IF([test yes = AS_VAR_GET([ac_var])],
>>> +        [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_FUNC_ATTRIBUTE_$1), 1,
>>> +            [Define to 1 if the system has the `$1' function attribute])], [])
>>> +
>>> +    AS_VAR_POPDEF([ac_var])
>>> +])
>>> diff --git a/configure.ac b/configure.ac
>>> index 37096944..639199a9 100644
>>> --- a/configure.ac
>>> +++ b/configure.ac
>>> @@ -619,6 +619,7 @@ CHECK_CCSUPPORT([-Werror=format-overflow=2], [flg1])
>>>    CHECK_CCSUPPORT([-Werror=int-conversion], [flg2])
>>>    CHECK_CCSUPPORT([-Werror=incompatible-pointer-types], [flg3])
>>>    CHECK_CCSUPPORT([-Werror=misleading-indentation], [flg4])
>>> +AX_GCC_FUNC_ATTRIBUTE([format])
>>>      AC_SUBST([AM_CFLAGS], ["$my_am_cflags $flg1 $flg2 $flg3 $flg4"])
>>>    diff --git a/support/include/xcommon.h b/support/include/xcommon.h
>>> index 23c9a135..30b0403b 100644
>>> --- a/support/include/xcommon.h
>>> +++ b/support/include/xcommon.h
>>> @@ -9,6 +9,10 @@
>>>    #ifndef _XMALLOC_H
>>>    #define _MALLOC_H
>>>    +#ifdef HAVE_CONFIG_H
>>> +#include <config.h>
>>> +#endif
>>> +
>>>    #include <sys/types.h>
>>>    #include <fcntl.h>
>>>    #include <limits.h>
>>> @@ -25,9 +29,15 @@
>>>      #define streq(s, t)    (strcmp ((s), (t)) == 0)
>>>    -/* Functions in sundries.c that are used in mount.c and umount.c  */
>>> +#ifdef HAVE_FUNC_ATTRIBUTE_FORMAT
>>> +#define X_FORMAT(_x) __attribute__((__format__ _x))
>>> +#else
>>> +#define X_FORMAT(_x)
>>> +#endif
>>> +
>>> +/* Functions in sundries.c that are used in mount.c and umount.c  */
>>>    char *canonicalize (const char *path);
>>> -void nfs_error (const char *fmt, ...);
>>> +void nfs_error (const char *fmt, ...) X_FORMAT((printf, 1, 2));
>>>    void *xmalloc (size_t size);
>>>    void *xrealloc(void *p, size_t size);
>>>    void xfree(void *);
>>> @@ -36,9 +46,9 @@ char *xstrndup (const char *s, int n);
>>>    char *xstrconcat2 (const char *, const char *);
>>>    char *xstrconcat3 (const char *, const char *, const char *);
>>>    char *xstrconcat4 (const char *, const char *, const char *, const char *);
>>> -void die (int errcode, const char *fmt, ...);
>>> +void die (int errcode, const char *fmt, ...) X_FORMAT((printf, 2, 3));
>>>    -extern void die(int err, const char *fmt, ...);
>>> +extern void die(int err, const char *fmt, ...) X_FORMAT((printf, 2, 3));
>>>    extern void (*at_die)(void);
>>>      /* exit status - bits below are ORed */
>>> diff --git a/support/include/xlog.h b/support/include/xlog.h
>>> index a11463ed..32ff5a1b 100644
>>> --- a/support/include/xlog.h
>>> +++ b/support/include/xlog.h
>>> @@ -7,6 +7,10 @@
>>>    #ifndef XLOG_H
>>>    #define XLOG_H
>>>    +#ifdef HAVE_CONFIG_H
>>> +#include <config.h>
>>> +#endif
>>> +
>>>    #include <stdarg.h>
>>>      /* These are logged always. L_FATAL also does exit(1) */
>>> @@ -35,6 +39,12 @@ struct xlog_debugfac {
>>>        int        df_fac;
>>>    };
>>>    +#ifdef HAVE_FUNC_ATTRIBUTE_FORMAT
>>> +#define XLOG_FORMAT(_x) __attribute__((__format__ _x))
>>> +#else
>>> +#define XLOG_FORMAT(_x)
>>> +#endif
>>> +
>>>    extern int export_errno;
>>>    void            xlog_open(char *progname);
>>>    void            xlog_stderr(int on);
>>> @@ -43,10 +53,10 @@ void            xlog_config(int fac, int on);
>>>    void            xlog_sconfig(char *, int on);
>>>    void            xlog_from_conffile(char *);
>>>    int            xlog_enabled(int fac);
>>> -void            xlog(int fac, const char *fmt, ...);
>>> -void            xlog_warn(const char *fmt, ...);
>>> -void            xlog_err(const char *fmt, ...);
>>> -void            xlog_errno(int err, const char *fmt, ...);
>>> -void            xlog_backend(int fac, const char *fmt, va_list args);
>>> +void            xlog(int fac, const char *fmt, ...) XLOG_FORMAT((printf, 2, 3));
>>> +void            xlog_warn(const char *fmt, ...) XLOG_FORMAT((printf, 1, 2));
>>> +void            xlog_err(const char *fmt, ...) XLOG_FORMAT((printf, 1, 2));
>>> +void            xlog_errno(int err, const char *fmt, ...) XLOG_FORMAT((printf, 2, 3));
>>> +void            xlog_backend(int fac, const char *fmt, va_list args) XLOG_FORMAT((printf, 2, 0));
>>>      #endif /* XLOG_H */
>>> diff --git a/support/nfs/svc_create.c b/support/nfs/svc_create.c
>>> index 4e14430d..976c2d29 100644
>>> --- a/support/nfs/svc_create.c
>>> +++ b/support/nfs/svc_create.c
>>> @@ -184,7 +184,7 @@ svc_create_sock(const struct sockaddr *sap, socklen_t salen,
>>>            type = SOCK_STREAM;
>>>            break;
>>>        default:
>>> -        xlog(D_GENERAL, "%s: Unrecognized bind address semantics: %u",
>>> +        xlog(D_GENERAL, "%s: Unrecognized bind address semantics: %lu",
>>>                __func__, nconf->nc_semantics);
>>>            return -1;
>>>        }
>>> diff --git a/support/nsm/rpc.c b/support/nsm/rpc.c
>>> index ae49006c..08b4746f 100644
>>> --- a/support/nsm/rpc.c
>>> +++ b/support/nsm/rpc.c
>>> @@ -182,7 +182,7 @@ nsm_xmit_getport(const int sock, const struct sockaddr_in *sin,
>>>        uint32_t xid;
>>>        XDR xdr;
>>>    -    xlog(D_CALL, "Sending PMAP_GETPORT for %u, %u, udp", program, version);
>>> +    xlog(D_CALL, "Sending PMAP_GETPORT for %lu, %lu, udp", program, version);
>>>          nsm_init_xdrmem(msgbuf, NSM_MAXMSGSIZE, &xdr);
>>>        xid = nsm_init_rpc_header(PMAPPROG, PMAPVERS,
>>> diff --git a/utils/exportfs/exportfs.c b/utils/exportfs/exportfs.c
>>> index 5cca4175..a04a7898 100644
>>> --- a/utils/exportfs/exportfs.c
>>> +++ b/utils/exportfs/exportfs.c
>>> @@ -651,6 +651,9 @@ out:
>>>        return result;
>>>    }
>>>    +#ifdef HAVE_FUNC_ATTRIBUTE_FORMAT
>>> +__attribute__((format (printf, 2, 3)))
>>> +#endif
>>>    static char
>>>    dumpopt(char c, char *fmt, ...)
>>>    {
>>> diff --git a/utils/mountd/cache.c b/utils/mountd/cache.c
>>> index e25a4337..3861f84a 100644
>>> --- a/utils/mountd/cache.c
>>> +++ b/utils/mountd/cache.c
>>> @@ -987,8 +987,7 @@ lookup_export(char *dom, char *path, struct addrinfo *ai)
>>>                } else if (found_type == i && found->m_warned == 0) {
>>>                    xlog(L_WARNING, "%s exported to both %s and %s, "
>>>                         "arbitrarily choosing options from first",
>>> -                     path, found->m_client->m_hostname, exp->m_client->m_hostname,
>>> -                     dom);
>>> +                     path, found->m_client->m_hostname, exp->m_client->m_hostname);
>>>                    found->m_warned = 1;
>>>                }
>>>            }
>>> diff --git a/utils/mountd/mountd.c b/utils/mountd/mountd.c
>>> index 33571ecb..66366434 100644
>>> --- a/utils/mountd/mountd.c
>>> +++ b/utils/mountd/mountd.c
>>> @@ -210,10 +210,10 @@ killer (int sig)
>>>    }
>>>      static void
>>> -sig_hup (int sig)
>>> +sig_hup (int UNUSED(sig))
>>>    {
>>>        /* don't exit on SIGHUP */
>>> -    xlog (L_NOTICE, "Received SIGHUP... Ignoring.\n", sig);
>>> +    xlog (L_NOTICE, "Received SIGHUP... Ignoring.\n");
>>>        return;
>>>    }
>>>    diff --git a/utils/nfsdcld/nfsdcld.c b/utils/nfsdcld/nfsdcld.c
>>> index cbf71fc6..7e894e49 100644
>>> --- a/utils/nfsdcld/nfsdcld.c
>>> +++ b/utils/nfsdcld/nfsdcld.c
>>> @@ -212,7 +212,7 @@ cld_inotify_cb(int UNUSED(fd), short which, void *data)
>>>        default:
>>>            /* anything else is fatal */
>>>            xlog(L_FATAL, "%s: unable to open new pipe (%d). Aborting.",
>>> -            ret, __func__);
>>> +            __func__, ret);
>>>            exit(ret);
>>>        }
>>>    diff --git a/utils/nfsdcld/sqlite.c b/utils/nfsdcld/sqlite.c
>>> index fa81df87..afa63499 100644
>>> --- a/utils/nfsdcld/sqlite.c
>>> +++ b/utils/nfsdcld/sqlite.c
>>> @@ -473,7 +473,7 @@ sqlite_fix_table_name(const char *name)
>>>        }
>>>        ret = sqlite3_exec(dbh, (const char *)buf, NULL, NULL, &err);
>>>        if (ret != SQLITE_OK) {
>>> -        xlog(L_ERROR, "Unable to fix table for epoch %d: %s",
>>> +        xlog(L_ERROR, "Unable to fix table for epoch %"PRIu64": %s",
>>>                 val, err);
>>>            goto out;
>>>        }
>>> diff --git a/utils/nfsidmap/nfsidmap.c b/utils/nfsidmap/nfsidmap.c
>>> index fc00da7a..cf7f65e9 100644
>>> --- a/utils/nfsidmap/nfsidmap.c
>>> +++ b/utils/nfsidmap/nfsidmap.c
>>> @@ -18,7 +18,7 @@
>>>    #include "xcommon.h"
>>>      int verbose = 0;
>>> -char *usage = "Usage: %s [-vh] [-c || [-u|-g|-r key] || -d || -l || [-t timeout] key desc]";
>>> +#define USAGE "Usage: %s [-vh] [-c || [-u|-g|-r key] || -d || -l || [-t timeout] key desc]"
>>>      #define MAX_ID_LEN   11
>>>    #define IDMAP_NAMESZ 128
>>> @@ -403,7 +403,7 @@ int main(int argc, char **argv)
>>>                break;
>>>            case 'h':
>>>            default:
>>> -            xlog_warn(usage, progname);
>>> +            xlog_warn(USAGE, progname);
>>>                exit(opt == 'h' ? 0 : 1);
>>>            }
>>>        }
>>> @@ -435,7 +435,7 @@ int main(int argc, char **argv)
>>>        xlog_stderr(verbose);
>>>        if ((argc - optind) != 2) {
>>>            xlog_warn("Bad arg count. Check /etc/request-key.conf");
>>> -        xlog_warn(usage, progname);
>>> +        xlog_warn(USAGE, progname);
>>>            return EXIT_FAILURE;
>>>        }
>>>    @@ -453,7 +453,7 @@ int main(int argc, char **argv)
>>>            return EXIT_FAILURE;
>>>        }
>>>        if (verbose) {
>>> -        xlog_warn("key: 0x%lx type: %s value: %s timeout %ld",
>>> +        xlog_warn("key: 0x%x type: %s value: %s timeout %d",
>>>                key, type, value, timeout);
>>>        }
>>>    diff --git a/utils/statd/rmtcall.c b/utils/statd/rmtcall.c
>>> index c4f6364f..5b261480 100644
>>> --- a/utils/statd/rmtcall.c
>>> +++ b/utils/statd/rmtcall.c
>>> @@ -247,7 +247,7 @@ process_reply(FD_SET_TYPE *rfds)
>>>            xlog_warn("%s: service %d not registered on localhost",
>>>                __func__, NL_MY_PROG(lp));
>>>        } else {
>>> -        xlog(D_GENERAL, "%s: Callback to %s (for %d) succeeded",
>>> +        xlog(D_GENERAL, "%s: Callback to %s (for %s) succeeded",
>>>                __func__, NL_MY_NAME(lp), NL_MON_NAME(lp));
>>>        }
>>>        nlist_free(&notify, lp);
>>> diff --git a/utils/statd/statd.c b/utils/statd/statd.c
>>> index 14673800..8eef2ff2 100644
>>> --- a/utils/statd/statd.c
>>> +++ b/utils/statd/statd.c
>>> @@ -136,7 +136,7 @@ static void log_modes(void)
>>>        strcat(buf, "TI-RPC ");
>>>    #endif
>>>    -    xlog_warn(buf);
>>> +    xlog_warn("%s", buf);
>>>    }
>>>      /*
>>> diff --git a/utils/statd/svc_run.c b/utils/statd/svc_run.c
>>> index d1dbd74a..e343c768 100644
>>> --- a/utils/statd/svc_run.c
>>> +++ b/utils/statd/svc_run.c
>>> @@ -53,6 +53,7 @@
>>>      #include <errno.h>
>>>    #include <time.h>
>>> +#include <inttypes.h>
>>>    #include "statd.h"
>>>    #include "notlist.h"
>>>    @@ -104,8 +105,8 @@ my_svc_run(int sockfd)
>>>                  tv.tv_sec  = NL_WHEN(notify) - now;
>>>                tv.tv_usec = 0;
>>> -            xlog(D_GENERAL, "Waiting for reply... (timeo %d)",
>>> -                            tv.tv_sec);
>>> +            xlog(D_GENERAL, "Waiting for reply... (timeo %jd)",
>>> +                            (intmax_t)tv.tv_sec);
>>>                selret = select(FD_SETSIZE, &readfds,
>>>                    (void *) 0, (void *) 0, &tv);
>>>            } else {