diff options
Diffstat (limited to 'perl.c')
| -rw-r--r-- | perl.c | 75 |
1 files changed, 49 insertions, 26 deletions
@@ -1107,8 +1107,8 @@ S_run_body(pTHX_ va_list args) if (!PL_restartop) { DEBUG_x(dump_all()); DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); - DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n", - (unsigned long) thr)); + DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n", + PTR2UV(thr))); if (PL_minus_c) { PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); @@ -1778,7 +1778,7 @@ Perl_moreswitches(pTHX_ char *s) #if defined(LOCAL_PATCH_COUNT) if (LOCAL_PATCH_COUNT > 0) printf("\n(with %d registered patch%s, see perl -V for more detail)", - LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : ""); + (int)LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : ""); #endif printf("\n\nCopyright 1987-1999, Larry Wall\n"); @@ -2191,13 +2191,15 @@ sed %s -e \"/^[^#]/b\" \ STATIC int S_fd_on_nosuid_fs(pTHX_ int fd) { - int on_nosuid = 0; - int check_okay = 0; + int check_okay = 0; /* able to do all the required sys/libcalls */ + int on_nosuid = 0; /* the fd is on a nosuid fs */ /* - * Preferred order: fstatvfs(), fstatfs(), getmntent(). + * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent(). * fstatvfs() is UNIX98. - * fstatfs() is BSD. - * getmntent() is O(number-of-mounted-filesystems) and can hang. + * fstatfs() is 4.3 BSD. + * ustat()+getmnt() is pre-4.3 BSD. + * getmntent() is O(number-of-mounted-filesystems) and can hang on + * an irrelevant filesystem while trying to reach the right one. */ # ifdef HAS_FSTATVFS @@ -2205,24 +2207,45 @@ S_fd_on_nosuid_fs(pTHX_ int fd) check_okay = fstatvfs(fd, &stfs) == 0; on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); # else -# if defined(HAS_FSTATFS) && defined(HAS_STRUCT_STATFS_FLAGS) +# ifdef PERL_MOUNT_NOSUID +# if defined(HAS_FSTATFS) && \ + defined(HAS_STRUCT_STATFS) && \ + defined(HAS_STRUCT_STATFS_F_FLAGS) struct statfs stfs; check_okay = fstatfs(fd, &stfs) == 0; -# undef PERL_MOUNT_NOSUID -# if !defined(PERL_MOUNT_NOSUID) && defined(MNT_NOSUID) -# define PERL_MOUNT_NOSUID MNT_NOSUID -# endif -# if !defined(PERL_MOUNT_NOSUID) && defined(MS_NOSUID) -# define PERL_MOUNT_NOSUID MS_NOSUID -# endif -# if !defined(PERL_MOUNT_NOSUID) && defined(M_NOSUID) -# define PERL_MOUNT_NOSUID M_NOSUID -# endif -# ifdef PERL_MOUNT_NOSUID on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); -# endif +# else +# if defined(HAS_FSTAT) && \ + defined(HAS_USTAT) && \ + defined(HAS_GETMNT) && \ + defined(HAS_STRUCT_FS_DATA) && + defined(NOSTAT_ONE) + struct stat fdst; + if (fstat(fd, &fdst) == 0) { + struct ustat us; + if (ustat(fdst.st_dev, &us) == 0) { + struct fs_data fsd; + /* NOSTAT_ONE here because we're not examining fields which + * vary between that case and STAT_ONE. */ + if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) { + size_t cmplen = sizeof(us.f_fname); + if (sizeof(fsd.fd_req.path) < cmplen) + cmplen = sizeof(fsd.fd_req.path); + if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && + fdst.st_dev == fsd.fd_req.dev) { + check_okay = 1; + on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; + } + } + } + } + } +# endif /* fstat+ustat+getmnt */ +# endif /* fstatfs */ # else -# if defined(HAS_GETMNTENT) && defined(HAS_HASMNTOPT) && defined(MNTOPT_NOSUID) +# if defined(HAS_GETMNTENT) && \ + defined(HAS_HASMNTOPT) && \ + defined(MNTOPT_NOSUID) FILE *mtab = fopen("/etc/mtab", "r"); struct mntent *entry; struct stat stb, fsb; @@ -2242,11 +2265,12 @@ S_fd_on_nosuid_fs(pTHX_ int fd) } if (mtab) fclose(mtab); -# endif /* mntent */ -# endif /* statfs */ +# endif /* getmntent+hasmntopt */ +# endif /* PERL_MOUNT_NOSUID: fstatfs or fstat+ustat+statfs */ # endif /* statvfs */ + if (!check_okay) - Perl_croak(aTHX_ "Can't check filesystem of script \"%s\"", PL_origfilename); + Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename); return on_nosuid; } #endif /* IAMSUID */ @@ -3196,4 +3220,3 @@ read_e_script(pTHXo_ int idx, SV *buf_sv, int maxlen) return 1; } - |