# 1 "readblock.c"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "readblock.c"
# 1 "/usr/include/errno.h" 1 3
# 29 "/usr/include/errno.h" 3
# 1 "/usr/include/features.h" 1 3
# 291 "/usr/include/features.h" 3
# 1 "/usr/include/sys/cdefs.h" 1 3
# 292 "/usr/include/features.h" 2 3
# 320 "/usr/include/features.h" 3
# 1 "/usr/include/gnu/stubs.h" 1 3
# 321 "/usr/include/features.h" 2 3
# 30 "/usr/include/errno.h" 2 3

# 1 "/usr/include/bits/errno.h" 1 3
# 25 "/usr/include/bits/errno.h" 3
# 1 "/usr/include/linux/errno.h" 1 3

# 1 "/usr/include/asm/errno.h" 1 3
# 5 "/usr/include/linux/errno.h" 2 3
# 26 "/usr/include/bits/errno.h" 2 3
# 38 "/usr/include/bits/errno.h" 3
extern int *__errno_location (void) __attribute__ ((__const__));
# 37 "/usr/include/errno.h" 2 3
# 59 "/usr/include/errno.h" 3

# 2 "readblock.c" 2
# 1 "/usr/include/unistd.h" 1 3
# 28 "/usr/include/unistd.h" 3

# 175 "/usr/include/unistd.h" 3
# 1 "/usr/include/bits/posix_opt.h" 1 3
# 176 "/usr/include/unistd.h" 2 3
# 190 "/usr/include/unistd.h" 3
# 1 "/usr/include/bits/types.h" 1 3
# 29 "/usr/include/bits/types.h" 3
# 1 "/usr/lib/gcc-lib/i386-redhat-linux/3.2/include/stddef.h" 1 3
# 201 "/usr/lib/gcc-lib/i386-redhat-linux/3.2/include/stddef.h" 3
typedef unsigned int size_t;
# 30 "/usr/include/bits/types.h" 2 3

typedef unsigned char _uchar;
typedef unsigned short _ushort;
typedef unsigned int _uint;
typedef unsigned long _ulong;

__extension__ typedef unsigned long long int uquadt;
__extension__ typedef long long int __quad_t;
# 49 "/usr/include/bits/types.h" 3
typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;

__extension__ typedef signed long long int __int64_t;
__extension__ typedef unsigned long long int __uint64_t;

typedef __quad_t *__qaddr_t;

typedef uquadt __dev_t;
typedef _uint __uid_t;
typedef _uint __gid_t;
typedef _ulong __ino_t;
typedef _uint __mode_t;
typedef _uint __nlink_t;
typedef long int __off_t;
typedef __quad_t __loff_t;
typedef int __pid_t;
typedef int __ssize_t;
typedef _ulong __rlim_t;
typedef uquadt __rlim64_t;
typedef _uint __id_t;

typedef struct
{
int __val[2];
} __fsid_t;

typedef int __daddr_t;
typedef char *__caddr_t;
typedef long int __time_t;
typedef unsigned int __useconds_t;
typedef long int __suseconds_t;
typedef long int __swblk_t;

typedef long int __clock_t;

typedef int __clockid_t;

typedef int __timer_t;

typedef int __key_t;

typedef unsigned short int __ipc_pid_t;

typedef long int __blksize_t;

typedef long int __blkcnt_t;
typedef __quad_t __blkcnt64_t;

typedef _ulong __fsblkcnt_t;
typedef uquadt __fsblkcnt64_t;

typedef _ulong __fsfilcnt_t;
typedef uquadt __fsfilcnt64_t;

typedef uquadt __ino64_t;

typedef __loff_t __off64_t;

typedef long int tscalart;
typedef unsigned long int tuscalart;

typedef int __intptr_t;

typedef unsigned int __socklen_t;

# 1 "/usr/include/bits/pthreadtypes.h" 1 3
# 23 "/usr/include/bits/pthreadtypes.h" 3
# 1 "/usr/include/bits/sched.h" 1 3
# 68 "/usr/include/bits/sched.h" 3
struct __sched_param
{
int __sched_priority;
};
# 24 "/usr/include/bits/pthreadtypes.h" 2 3

struct pthreadfastlock
{
long int __status;
int __spinlock;

};

typedef struct pthreaddescr_struct *pthreaddescr;

typedef struct __pthread_attr_s
{
int __detachstate;
int __schedpolicy;
struct __sched_param __schedparam;
int __inheritsched;
int __scope;
size_t __guardsize;
int __stackaddr_set;
void *__stackaddr;
size_t __stacksize;
} pthread_attr_t;

typedef struct
{
struct pthreadfastlock _clock;
pthreaddescr cwaiting;
} pthreadcond_t;

typedef struct
{
int __dummy;
} pthread_condattr_t;

typedef unsigned int pthread_key_t;

typedef struct
{
int _mreserved;
int _mcount;
pthreaddescr _mowner;
int _mkind;
struct pthreadfastlock mlock;
} pthreadmutex_t;

typedef struct
{
int __mutexkind;
} pthread_mutexattr_t;

typedef int pthread_once_t;
# 140 "/usr/include/bits/pthreadtypes.h" 3
typedef unsigned long int pthread_t;
# 144 "/usr/include/bits/types.h" 2 3
# 191 "/usr/include/unistd.h" 2 3

typedef __ssize_t ssize_t;

# 1 "/usr/lib/gcc-lib/i386-redhat-linux/3.2/include/stddef.h" 1 3
# 200 "/usr/include/unistd.h" 2 3
# 240 "/usr/include/unistd.h" 3
typedef __intptr_t intptr_t;

typedef __socklen_t socklen_t;
# 260 "/usr/include/unistd.h" 3
extern int access (__const char *__name, int __type) ;
# 290 "/usr/include/unistd.h" 3
extern __off_t lseek (int __fd, __off_t __offset, int __whence) ;
# 306 "/usr/include/unistd.h" 3
extern int close (int __fd) ;

extern ssize_t read (int __fd, void *__buf, size_t __nbytes) ;

extern ssize_t write (int __fd, __const void *__buf, size_t __n) ;
# 353 "/usr/include/unistd.h" 3
extern int pipe (int __pipedes[2]) ;
# 362 "/usr/include/unistd.h" 3
extern unsigned int alarm (unsigned int __seconds) ;
# 371 "/usr/include/unistd.h" 3
extern unsigned int sleep (unsigned int __seconds) ;

extern __useconds_t ualarm (__useconds_t __value, __useconds_t __interval)

;

extern int usleep (__useconds_t __useconds) ;

extern int pause (void) ;

extern int chown (__const char *__file, __uid_t __owner, __gid_t __group)

;

extern int fchown (int __fd, __uid_t __owner, __gid_t __group) ;

extern int lchown (__const char *__file, __uid_t __owner, __gid_t __group)

;

extern int chdir (__const char *__path) ;

extern int fchdir (int __fd) ;
# 423 "/usr/include/unistd.h" 3
extern char *getcwd (char *__buf, size_t __size) ;
# 436 "/usr/include/unistd.h" 3
extern char *getwd (char *__buf) ;

extern int dup (int __fd) ;

extern int dup2 (int __fd, int __fd2) ;

extern char **__environ;

extern int execve (__const char __path, char __const __argv[],

char *__const __envp[]) ;
# 467 "/usr/include/unistd.h" 3
extern int execv (__const char __path, char __const __argv[]) ;

extern int execle (__const char __path, __const char __arg, ...) ;

extern int execl (__const char __path, __const char __arg, ...) ;

extern int execvp (__const char __file, char __const __argv[]) ;

extern int execlp (__const char __file, __const char __arg, ...) ;

extern int nice (int __inc) ;

extern void _exit (int __status) __attribute__ ((__noreturn__));

# 1 "/usr/include/bits/confname.h" 1 3
# 25 "/usr/include/bits/confname.h" 3
enum
{
PCLINK_MAX,

PCMAX_CANON,

PCMAX_INPUT,

PCNAME_MAX,

PCPATH_MAX,

PCPIPE_BUF,

PCCHOWN_RESTRICTED,

PCNO_TRUNC,

PCVDISABLE,

PCSYNC_IO,

PCASYNC_IO,

PCPRIO_IO,

PCSOCK_MAXBUF,

PCFILESIZEBITS,

PCREC_INCR_XFER_SIZE,

PCREC_MAX_XFER_SIZE,

PCREC_MIN_XFER_SIZE,

PCREC_XFER_ALIGN,

PCALLOC_SIZE_MIN,

PCSYMLINK_MAX

};

enum
{
SCARG_MAX,

SCCHILD_MAX,

SCCLK_TCK,

SCNGROUPS_MAX,

SCOPEN_MAX,

SCSTREAM_MAX,

SCTZNAME_MAX,

SCJOB_CONTROL,

SCSAVED_IDS,

SCREALTIME_SIGNALS,

SCPRIORITY_SCHEDULING,

SCTIMERS,

SCASYNCHRONOUS_IO,

SCPRIORITIZED_IO,

SCSYNCHRONIZED_IO,

SCFSYNC,

SCMAPPED_FILES,

SCMEMLOCK,

SCMEMLOCK_RANGE,

SCMEMORY_PROTECTION,

SCMESSAGE_PASSING,

SCSEMAPHORES,

SCSHARED_MEMORY_OBJECTS,

SCAIO_LISTIO_MAX,

SCAIO_MAX,

SCAIO_PRIO_DELTA_MAX,

SCDELAYTIMER_MAX,

SCMQ_OPEN_MAX,

SCMQ_PRIO_MAX,

SCVERSION,

SCPAGESIZE,

SCRTSIG_MAX,

SCSEM_NSEMS_MAX,

SCSEM_VALUE_MAX,

SCSIGQUEUE_MAX,

SCTIMER_MAX,

SCBC_BASE_MAX,

SCBC_DIM_MAX,

SCBC_SCALE_MAX,

SCBC_STRING_MAX,

SCCOLL_WEIGHTS_MAX,

SCEQUIV_CLASS_MAX,

SCEXPR_NEST_MAX,

SCLINE_MAX,

SCRE_DUP_MAX,

SCCHARCLASS_NAME_MAX,

SC2_VERSION,

SC2CBIND,

SC2CDEV,

SC2_FORT_DEV,

SC2_FORT_RUN,

SC2_SW_DEV,

SC2_LOCALEDEF,

SCPII,

SCPII_XTI,

SCPII_SOCKET,

SCPII_INTERNET,

SCPII_OSI,

SCPOLL,

SCSELECT,

SCUIO_MAXIOV,

SCIOV_MAX = SCUIO_MAXIOV,

SCPII_INTERNET_STREAM,

SCPII_INTERNET_DGRAM,

SCPII_OSI_COTS,

SCPII_OSI_CLTS,

SCPII_OSI_M,

SCTIOVMAX,

SCTHREADS,

SCTHREAD_SAFE_FUNCTIONS,

SCGETGRRSIZE_MAX,

SCGETPWRSIZE_MAX,

SCLOGIN_NAME_MAX,

SCTTY_NAME_MAX,

SCTHREAD_DESTRUCTOR_ITERATIONS,

SCTHREAD_KEYS_MAX,

SCTHREAD_STACK_MIN,

SCTHREAD_THREADS_MAX,

SCTHREAD_ATTR_STACKADDR,

SCTHREAD_ATTR_STACKSIZE,

SCTHREAD_PRIORITY_SCHEDULING,

SCTHREAD_PRIO_INHERIT,

SCTHREAD_PRIO_PROTECT,

SCTHREAD_PROCESS_SHARED,

SCNPROCESSORS_CONF,

SCNPROCESSORS_ONLN,

SCPHYS_PAGES,

SCAVPHYS_PAGES,

SCATEXIT_MAX,

SCPASS_MAX,

SCXOPEN_VERSION,

SCXOPEN_XCU_VERSION,

SCXOPEN_UNIX,

SCXOPEN_CRYPT,

SCXOPEN_ENH_I18N,

SCXOPEN_SHM,

SC2_CHAR_TERM,

SC2CVERSION,

SC2_UPE,

SCXOPEN_XPG2,

SCXOPEN_XPG3,

SCXOPEN_XPG4,

SCCHAR_BIT,

SCCHAR_MAX,

SCCHAR_MIN,

SCINT_MAX,

SCINT_MIN,

SCLONG_BIT,

SCWORD_BIT,

SCMB_LEN_MAX,

SCNZERO,

SCSSIZE_MAX,

SCSCHAR_MAX,

SCSCHAR_MIN,

SCSHRT_MAX,

SCSHRT_MIN,

SCUCHAR_MAX,

SCUINT_MAX,

SCULONG_MAX,

SCUSHRT_MAX,

SCNL_ARGMAX,

SCNL_LANGMAX,

SCNL_MSGMAX,

SCNL_NMAX,

SCNL_SETMAX,

SCNL_TEXTMAX,

SCXBS5_ILP32_OFF32,

SCXBS5_ILP32_OFFBIG,

SCXBS5_LP64_OFF64,

SCXBS5_LPBIG_OFFBIG,

SCXOPEN_LEGACY,

SCXOPEN_REALTIME,

SCXOPEN_REALTIME_THREADS,

SCADVISORY_INFO,

SCBARRIERS,

SCBASE,

SCCLANGSUPPORT,

SCCLANGSUPPORT_R,

SCCLOCK_SELECTION,

SCCPUTIME,

SCTHREAD_CPUTIME,

SCDEVICE_IO,

SCDEVICE_SPECIFIC,

SCDEVICE_SPECIFIC_R,

SCFD_MGMT,

SCFIFO,

SCPIPE,

SCFILE_ATTRIBUTES,

SCFILE_LOCKING,

SCFILE_SYSTEM,

SCMONOTONIC_CLOCK,

SCMULTI_PROCESS,

SCSINGLE_PROCESS,

SCNETWORKING,

SCREADER_WRITER_LOCKS,

SCSPIN_LOCKS,

SCREGEXP,

SCREGEX_VERSION,

SCSHELL,

SCSIGNALS,

SCSPAWN,

SCSPORADIC_SERVER,

SCTHREAD_SPORADIC_SERVER,

SCSYSTEM_DATABASE,

SCSYSTEM_DATABASE_R,

SCTIMEOUTS,

SCTYPED_MEMORY_OBJECTS,

SCUSER_GROUPS,

SCUSER_GROUPS_R,

SC2_PBS,

SC2_PBS_ACCOUNTING,

SC2_PBS_LOCATE,

SC2_PBS_MESSAGE,

SC2_PBS_TRACK,

SCSYMLOOP_MAX,

SCSTREAMS,

SC2_PBS_CHECKPOINT,

SCV6_ILP32_OFF32,

SCV6_ILP32_OFFBIG,

SCV6_LP64_OFF64,

SCV6_LPBIG_OFFBIG,

SCHOST_NAME_MAX,

SCTRACE,

SCTRACE_EVENT_FILTER,

SCTRACE_INHERIT,

SCTRACE_LOG

};

enum
{
CSPATH,
# 563 "/usr/include/bits/confname.h" 3

CSV6_WIDTH_RESTRICTED_ENVS

};
# 501 "/usr/include/unistd.h" 2 3

extern long int pathconf (__const char *__path, int __name) ;

extern long int fpathconf (int __fd, int __name) ;

extern long int sysconf (int __name) __attribute__ ((__const__));

extern size_t confstr (int __name, char *__buf, size_t __len) ;

extern __pid_t getpid (void) ;

extern __pid_t getppid (void) ;

extern __pid_t getpgrp (void) ;
# 536 "/usr/include/unistd.h" 3
extern __pid_t __getpgid (__pid_t __pid) ;
# 545 "/usr/include/unistd.h" 3
extern int setpgid (__pid_t __pid, __pid_t __pgid) ;
# 562 "/usr/include/unistd.h" 3
extern int setpgrp (void) ;
# 580 "/usr/include/unistd.h" 3
extern __pid_t setsid (void) ;

extern __uid_t getuid (void) ;

extern __uid_t geteuid (void) ;

extern __gid_t getgid (void) ;

extern __gid_t getegid (void) ;

extern int getgroups (int __size, __gid_t __list[]) ;
# 613 "/usr/include/unistd.h" 3
extern int setuid (__uid_t __uid) ;

extern int setreuid (__uid_t __ruid, __uid_t __euid) ;

extern int seteuid (__uid_t __uid) ;

extern int setgid (__gid_t __gid) ;

extern int setregid (__gid_t __rgid, __gid_t __egid) ;

extern int setegid (__gid_t __gid) ;

extern __pid_t fork (void) ;

extern __pid_t vfork (void) ;

extern char *ttyname (int __fd) ;

extern int ttyname_r (int __fd, char *__buf, size_t __buflen) ;

extern int isatty (int __fd) ;

extern int ttyslot (void) ;

extern int link (__const char __from, __const char __to) ;

extern int symlink (__const char __from, __const char __to) ;

extern int readlink (__const char __restrict __path, char __restrict __buf,

size_t __len) ;

extern int unlink (__const char *__name) ;

extern int rmdir (__const char *__path) ;

extern __pid_t tcgetpgrp (int __fd) ;

extern int tcsetpgrp (int __fd, __pid_t __pgrp_id) ;

extern char *getlogin (void) ;
# 717 "/usr/include/unistd.h" 3
extern int setlogin (__const char *__name) ;
# 726 "/usr/include/unistd.h" 3
# 1 "/usr/include/getopt.h" 1 3
# 47 "/usr/include/getopt.h" 3
extern char *optarg;
# 61 "/usr/include/getopt.h" 3
extern int optind;

extern int opterr;

extern int optopt;
# 145 "/usr/include/getopt.h" 3
extern int getopt (int ___argc, char const ___argv, const char *__shortopts);
# 727 "/usr/include/unistd.h" 2 3

extern int gethostname (char *__name, size_t __len) ;

extern int sethostname (__const char *__name, size_t __len) ;

extern int sethostid (long int __id) ;

extern int getdomainname (char *__name, size_t __len) ;
extern int setdomainname (__const char *__name, size_t __len) ;

extern int vhangup (void) ;

extern int revoke (__const char *__file) ;

extern int profil (unsigned short int *__sample_buffer, size_t __size,

size_t __offset, unsigned int __scale) ;

extern int acct (__const char *__name) ;

extern char *getusershell (void) ;
extern void endusershell (void) ;
extern void setusershell (void) ;

extern int daemon (int __nochdir, int __noclose) ;

extern int chroot (__const char *__path) ;

extern char *getpass (__const char *__prompt) ;

extern int fsync (int __fd) ;

extern long int gethostid (void) ;

extern void sync (void) ;

extern int getpagesize (void) __attribute__ ((__const__));

extern int truncate (__const char *__file, __off_t __length) ;
# 841 "/usr/include/unistd.h" 3
extern int ftruncate (int __fd, __off_t __length) ;
# 857 "/usr/include/unistd.h" 3
extern int getdtablesize (void) ;
# 866 "/usr/include/unistd.h" 3
extern int brk (void *__addr) ;

extern void *sbrk (intptr_t __delta) ;
# 887 "/usr/include/unistd.h" 3
extern long int syscall (long int __sysno, ...) ;
# 907 "/usr/include/unistd.h" 3
extern int lockf (int __fd, int __cmd, __off_t __len) ;
# 938 "/usr/include/unistd.h" 3
extern int fdatasync (int __fildes) ;
# 983 "/usr/include/unistd.h" 3
extern int pthread_atfork (void (*__prepare) (void),

                           void (*__parent) (void),
                           void (*__child) (void)) ;

# 3 "readblock.c" 2

ssize_t readblock(int fd, void *buf, size_t size) {

char *bufp;
size_t bytestoread;
ssize_t bytesread;
size_t totalbytes;

for (bufp = buf, bytestoread = size, totalbytes = 0;

        bytestoread > 0;
        bufp += bytesread, bytestoread -= bytesread) {
      bytesread = read(fd, bufp, bytestoread);
      if ((bytesread == 0) && (totalbytes == 0))
         return 0;
      if (bytesread == 0) {
         (*__errno_location ()) = 22;
         return -1;
      }
      if ((bytesread) == -1 && ((*__errno_location ()) != 4))
         return -1;
      if (bytesread == -1)
         bytesread = 0;
      totalbytes += bytesread;

}
return totalbytes;
}