//my_err.h
#include <errno.h> /* for definition of errno */
#include <stdarg.h> /* ISO C variable aruments */
static void err_doit(int, int, const char *, va_list);
/*
* Nonfatal error related to a system call.
* Print a message and return.
*/
void err_ret(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(1, errno, fmt, ap);
va_end(ap);
}
/*
* Fatal error related to a system call.
* Print a message and terminate.
*/
void err_sys(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(1, errno, fmt, ap);
va_end(ap);
exit(1);
}
/*
* Fatal error unrelated to a system call.
* Error code passed as explict parameter.
* Print a message and terminate.
*/
void err_exit(int error, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(1, error, fmt, ap);
va_end(ap);
exit(1);
}
/*
* Fatal error related to a system call.
* Print a message, dump core, and terminate.
*/
void err_dump(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(1, errno, fmt, ap);
va_end(ap);
abort(); /* dump core and terminate */
exit(1); /* shouldn't get here */
}
/*
* Nonfatal error unrelated to a system call.
* Print a message and return.
*/
void err_msg(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(0, 0, fmt, ap);
va_end(ap);
}
/*
* Fatal error unrelated to a system call.
* Print a message and terminate.
*/
void err_quit(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
err_doit(0, 0, fmt, ap);
va_end(ap);
exit(1);
}
/*
* Print a message and return to caller.
* Caller specifies "errnoflag".
*/
static void err_doit(int errnoflag, int error, const char *fmt, va_list ap)
{
char buf[MAXLINE];
vsnprintf(buf, MAXLINE, fmt, ap);
if (errnoflag)
snprintf(buf+strlen(buf), MAXLINE-strlen(buf), ": %s",
strerror(error));
strcat(buf, "\n");
fflush(stdout); /* in case stdout and stderr are the same */
fputs(buf, stderr);
fflush(NULL); /* flushes all stdio output streams */
}
//unpipc.h
/* include unpipch */
/* Our own header. Tabs are set for 4 spaces, not 8 */
#ifndef __unpipc_h
#define __unpipc_h
#include "./config.h" /* configuration options for current OS */
/* "../config.h" is generated by configure */
/* If anything changes in the following list of #includes, must change
../aclocal.m4 and ../configure.in also, for configure's tests. */
#include <sys/types.h> /* basic system data types */
#include <sys/time.h> /* timeval{} for select() */
#include <time.h> /* timespec{} for pselect() */
#include <errno.h>
#include <fcntl.h> /* for nonblocking */
#include <limits.h> /* PIPE_BUF */
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h> /* for S_xxx file mode constants */
#include <unistd.h>
#include <sys/wait.h>
#ifdef HAVE_MQUEUE_H
# include <mqueue.h> /* Posix message queues */
#endif
#ifdef HAVE_SEMAPHORE_H
# include <semaphore.h> /* Posix semaphores */
#ifndef SEM_FAILED
#define SEM_FAILED ((sem_t *)(-1))
#endif
#endif
#ifdef HAVE_SYS_MMAN_H
# include <sys/mman.h> /* Posix shared memory */
#endif
#ifndef MAP_FAILED
#define MAP_FAILED ((void *)(-1))
#endif
#ifdef HAVE_SYS_IPC_H
# include <sys/ipc.h> /* System V IPC */
#endif
#ifdef HAVE_SYS_MSG_H
# include <sys/msg.h> /* System V message queues */
#endif
#ifdef HAVE_SYS_SEM_H
#ifdef __bsdi__
#undef HAVE_SYS_SEM_H /* hack: BSDI's semctl() prototype is wrong */
#else
# include <sys/sem.h> /* System V semaphores */
#endif
#ifndef HAVE_SEMUN_UNION
/* $$.It semun$$ */
union semun { /* define union for semctl() */
int val;
struct semid_ds *buf;
unsigned short *array;
};
#endif
#endif /* HAVE_SYS_SEM_H */
#ifdef HAVE_SYS_SHM_H
# include <sys/shm.h> /* System V shared memory */
#endif
#ifdef HAVE_SYS_SELECT_H
# include <sys/select.h> /* for convenience */
#endif
#ifdef HAVE_POLL_H
# include <poll.h> /* for convenience */
#endif
#ifdef HAVE_STROPTS_H
# include <stropts.h> /* for convenience */
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h> /* for convenience */
#endif
/* Next three headers are normally needed for socket/file ioctl's:
* <sys/ioctl.h>, <sys/filio.h>, and <sys/sockio.h>.
*/
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
#endif
#ifdef HAVE_PTHREAD_H
# include <pthread.h>
#endif
#ifdef HAVE_DOOR_H
# include <door.h> /* Solaris doors API */
#endif
#ifdef HAVE_RPC_RPC_H
#ifdef _PSX4_NSPACE_H_TS /* Digital Unix 4.0b hack, hack, hack */
#undef SUCCESS
#endif
# include <rpc/rpc.h> /* Sun RPC */
#endif
/* Define bzero() as a macro if it's not in standard C library. */
#ifndef HAVE_BZERO
#define bzero(ptr,n) memset(ptr, 0, n)
#endif
/* Posix.1g requires that an #include of <poll.h> DefinE INFTIM, but many
systems still DefinE it in <sys/stropts.h>. We don't want to include
all the streams stuff if it's not needed, so we just DefinE INFTIM here.
This is the standard value, but there's no guarantee it is -1. */
#ifndef INFTIM
#define INFTIM (-1) /* infinite poll timeout */
#ifdef HAVE_POLL_H
#define INFTIM_UNPH /* tell unpxti.h we defined it */
#endif
#endif
/* Miscellaneous constants */
#ifndef PATH_MAX /* should be in <limits.h> */
#define PATH_MAX 1024 /* max # of characters in a pathname */
#endif
#define MAX_PATH 1024
/* $$.ix [MAX_PATH]~constant,~definition~of$$ */
#define MAXLINE 4096 /* max text line length */
/* $$.ix [MAXLINE]~constant,~definition~of$$ */
/* $$.ix [BUFFSIZE]~constant,~definition~of$$ */
#define BUFFSIZE 8192 /* buffer size for reads and writes */
#define FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
/* default permissions for new files */
/* $$.ix [FILE_MODE]~constant,~definition~of$$ */
#define DIR_MODE (FILE_MODE | S_IXUSR | S_IXGRP | S_IXOTH)
/* default permissions for new directories */
/* $$.ix [DIR_MODE]~constant,~definition~of$$ */
#define SVMSG_MODE (MSG_R | MSG_W | MSG_R>>3 | MSG_R>>6)
/* default permissions for new SV message queues */
/* $$.ix [SVMSG_MODE]~constant,~definition~of$$ */
#define SVSEM_MODE (SEM_R | SEM_A | SEM_R>>3 | SEM_R>>6)
/* default permissions for new SV semaphores */
/* $$.ix [SVSEM_MODE]~constant,~definition~of$$ */
#define SVSHM_MODE (SHM_R | SHM_W | SHM_R>>3 | SHM_R>>6)
/* default permissions for new SV shared memory */
/* $$.ix [SVSHM_MODE]~constant,~definition~of$$ */
typedef void Sigfunc(int); /* for signal handlers */
#ifdef HAVE_SIGINFO_T_STRUCT
typedef void Sigfunc_rt(int, siginfo_t *, void *);
#endif
#define min(a,b) ((a) < (b) ? (a) : (b))
#define max(a,b) ((a) > (b) ? (a) : (b))
#ifndef HAVE_TIMESPEC_STRUCT
struct timespec {
time_t tv_sec; /* seconds */
long tv_nsec; /* and nanoseconds */
};
/* $$.It timespec$$ */
/* $$.Ib tv_sec$$ */
/* $$.Ib tv_nsec$$ */
#endif
/*
* In our wrappers for open(), mq_open(), and sem_open() we handle the
* optional arguments using the va_XXX() macros. But one of the optional
* arguments is of type "mode_t" and this breaks under BSD/OS because it
* uses a 16-bit integer for this datatype. But when our wrapper function
* is called, the compiler expands the 16-bit short integer to a 32-bit
* integer. This breaks our call to va_arg(). All we can do is the
* following hack. Other systems in addition to BSD/OS might have this
* problem too ...
*/
#ifdef __bsdi__
#define va_mode_t int
#else
#define va_mode_t mode_t
#endif
/* $$.ix [va_mode_t]~datatype,~definition~of$$ */
/* our record locking macros */
#define read_lock(fd, offset, whence, len) \
lock_reg(fd, F_SETLK, F_RDLCK, offset, whence, len)
#define readw_lock(fd, offset, whence, len) \
lock_reg(fd, F_SETLKW, F_RDLCK, offset, whence, len)
#define write_lock(fd, offset, whence, len) \
lock_reg(fd, F_SETLK, F_WRLCK, offset, whence, len)
#define writew_lock(fd, offset, whence, len) \
lock_reg(fd, F_SETLKW, F_WRLCK, offset, whence, len)
#define un_lock(fd, offset, whence, len) \
lock_reg(fd, F_SETLK, F_UNLCK, offset, whence, len)
#define is_read_lockable(fd, offset, whence, len) \
lock_test(fd, F_RDLCK, offset, whence, len)
#define is_write_lockable(fd, offset, whence, len) \
lock_test(fd, F_WRLCK, offset, whence, len)
/* end unpipch */
#define Read_lock(fd, offset, whence, len) \
Lock_reg(fd, F_SETLK, F_RDLCK, offset, whence, len)
#define Readw_lock(fd, offset, whence, len) \
Lock_reg(fd, F_SETLKW, F_RDLCK, offset, whence, len)
#define Write_lock(fd, offset, whence, len) \
Lock_reg(fd, F_SETLK, F_WRLCK, offset, whence, len)
#define Writew_lock(fd, offset, whence, len) \
Lock_reg(fd, F_SETLKW, F_WRLCK, offset, whence, len)
#define Un_lock(fd, offset, whence, len) \
Lock_reg(fd, F_SETLK, F_UNLCK, offset, whence, len)
#define Is_read_lockable(fd, offset, whence, len) \
Lock_test(fd, F_RDLCK, offset, whence, len)
#define Is_write_lockable(fd, offset, whence, len) \
Lock_test(fd, F_WRLCK, offset, whence, len)
/* prototypes for our own library functions */
void daemon_init(const char *, int);
void daemon_inetd(const char *, int);
char *gf_time(void);
int lock_reg(int, int, int, off_t, int, off_t);
pid_t lock_test(int, int, off_t, int, off_t);
void *my_shm(size_t);
char *px_ipc_name(const char *);
int readable_timeo(int, int);
ssize_t readline(int, void *, size_t);
ssize_t readn(int, void *, size_t);
int set_concurrency(int);
Sigfunc *signal_intr(int, Sigfunc *);
int sleep_us(unsigned int);
int start_time(void);
double stop_time(void);
int touch(void *, int);
void tv_sub(struct timeval *, struct timeval *);
int writable_timeo(int, int);
ssize_t writen(int, const void *, size_t);
#ifndef HAVE_GETHOSTNAME_PROTO
int gethostname(char *, int);
#endif
#ifndef HAVE_ISFDTYPE_PROTO
int isfdtype(int, int);
#endif
#ifndef HAVE_PSELECT_PROTO
int pselect(int, fd_set *, fd_set *, fd_set *,
const struct timespec *, const sigset_t *);
#endif
#ifndef HAVE_SNPRINTF_PROTO
int snprintf(char *, size_t, const char *, ...);
#endif
/* prototypes for our own library wrapper functions */
char *Gf_time(void);
void Lock_reg(int, int, int, off_t, int, off_t);
pid_t Lock_test(int, int, off_t, int, off_t);
void *My_shm(size_t);
char *Px_ipc_name(const char *);
int Readable_timeo(int, int);
ssize_t Readline(int, void *, size_t);
ssize_t Readn(int, void *, size_t);
void Set_concurrency(int);
Sigfunc *Signal(int, Sigfunc *);
Sigfunc *Signal_intr(int, Sigfunc *);
#ifdef HAVE_SIGINFO_T_STRUCT
Sigfunc_rt *Signal_rt(int, Sigfunc_rt *);
Sigfunc_rt *Signal_rt_intr(int, Sigfunc_rt *);
#endif
void Sleep_us(unsigned int);
void Start_time(void);
double Stop_time(void);
void Touch(void *, int);
int Writable_timeo(int, int);
void Writen(int, void *, size_t);
/* prototypes for our Unix wrapper functions */
void *Calloc(size_t, size_t);
void Close(int);
void Dup2(int, int);
int Fcntl(int, int, void *);
pid_t Fork(void);
long Fpathconf(int, int);
void Fstat(int, struct stat *);
key_t Ftok(const char *, int);
void Ftruncate(int, off_t);
int Getopt(int, char *const *, const char *);
void Gettimeofday(struct timeval *, void *);
int Ioctl(int, int, void *);
void Kill(pid_t, int);
off_t Lseek(int, off_t, int);
void *Malloc(size_t);
void Mkfifo(const char *, mode_t);
void Mktemp(char *);
void *Mmap(void *, size_t, int, int, int, off_t);
void Munmap(void *, size_t);
int Open(const char *, int, ...);
long Pathconf(const char *, int);
void Pipe(int *fds);
ssize_t Read(int, void *, size_t);
int Select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
void Sigaddset(sigset_t *, int);
void Sigdelset(sigset_t *, int);
void Sigemptyset(sigset_t *);
void Sigfillset(sigset_t *);
int Sigismember(const sigset_t *, int);
void Sigpending(sigset_t *);
void Sigprocmask(int, const sigset_t *, sigset_t *);
#ifdef HAVE_SIGINFO_T_STRUCT
void Sigqueue(pid_t, int, const union sigval);
#endif
#ifdef HAVE_SIGWAIT
void Sigwait(const sigset_t *, int *);
#endif
void Stat(const char *, struct stat *);
char *Strdup(const char *);
long Sysconf(int);
void Sysctl(int *, u_int, void *, size_t *, void *, size_t);
void Unlink(const char *);
void *Valloc(size_t);
pid_t Wait(int *);
pid_t Waitpid(pid_t, int *, int);
void Write(int, void *, size_t);
#ifdef HAVE_MQUEUE_H
/* 4Posix message queues */
mqd_t Mq_open(const char *, int, ...);
void Mq_close(mqd_t);
void Mq_unlink(const char *pathname);
void Mq_send(mqd_t, const char *, size_t, unsigned int);
ssize_t Mq_receive(mqd_t, char *, size_t, unsigned int *);
void Mq_notify(mqd_t, const struct sigevent *);
void Mq_getattr(mqd_t, struct mq_attr *);
void Mq_setattr(mqd_t, const struct mq_attr *, struct mq_attr *);
#endif /* HAVE_MQUEUE_H */
#ifdef HAVE_SEMAPHORE_H
/* 4Posix semaphores */
sem_t *Sem_open(const char *, int, ...);
void Sem_close(sem_t *);
void Sem_unlink(const char *);
void Sem_init(sem_t *, int, unsigned int);
void Sem_destroy(sem_t *);
void Sem_wait(sem_t *);
int Sem_trywait(sem_t *);
void Sem_post(sem_t *);
void Sem_getvalue(sem_t *, int *);
#endif /* HAVE_SEMAPHORE_H */
/* Note that <sys/mman.h> is defined on some systems that do not support
* Posix shared memory (e.g., 4.4BSD), because this header predates Posix
* and appears on any system that supports mmap(). Therefore we cannot
* use this to determine whether the implementation supports Posix shared
* memory or not. We use our own HAVE_SHM_OPEN_PROTO symbol.
*/
#ifdef HAVE_SHM_OPEN_PROTO
/* 4Posix shared memory */
int Shm_open(const char *, int, mode_t);
void Shm_unlink(const char *);
#endif
#ifdef HAVE_SYS_MSG_H
/* 4System V message queues */
int Msgget(key_t key, int flag);
void Msgctl(int, int, struct msqid_ds *);
void Msgsnd(int, const void *, size_t, int);
ssize_t Msgrcv(int, void *, size_t, int, int);
#endif /* HAVE_SYS_MSG_H */
#ifdef HAVE_SYS_SEM_H
/* 4System V semaphores */
int Semget(key_t, int, int);
int Semctl(int, int, int, ...);
void Semop(int, struct sembuf *, size_t);
#endif /* HAVE_SYS_SEM_H */
#ifdef HAVE_SYS_SHM_H
/* 4System V shared memory */
int Shmget(key_t, size_t, int);
void *Shmat(int, const void *, int);
void Shmdt(const void *);
void Shmctl(int, int, struct shmid_ds *);
#endif /* HAVE_SYS_SHM_H */
/* prototypes for our stdio wrapper functions */
void Fclose(FILE *);
FILE *Fdopen(int, const char *);
char *Fgets(char *, int, FILE *);
FILE *Fopen(const char *, const char *);
void Fputs(const char *, FILE *);
FILE *Popen(const char *, const char *);
int Pclose(FILE *);
#ifdef HAVE_FATTACH
void Fattach(int, const char *);
#endif
#ifdef HAVE_POLL
int Poll(struct pollfd *, unsigned long, int);
#endif
void err_dump(const char *, ...);
void err_msg(const char *, ...);
void err_quit(const char *, ...);
void err_ret(const char *, ...);
void err_sys(const char *, ...);
/* prototypes for our pthread wrapper functions */
void Pthread_attr_init(pthread_attr_t *);
void Pthread_attr_destroy(pthread_attr_t *);
void Pthread_attr_setdetachstate(pthread_attr_t *, int);
void Pthread_attr_setscope(pthread_attr_t *, int);
void Pthread_create(pthread_t *, const pthread_attr_t *,
void * (*)(void *), void *);
void Pthread_join(pthread_t, void **);
void Pthread_detach(pthread_t);
void Pthread_kill(pthread_t, int);
void Pthread_setcancelstate(int, int *);
void Pthread_mutexattr_init(pthread_mutexattr_t *);
void Pthread_mutexattr_destroy(pthread_mutexattr_t *);
void Pthread_mutexattr_setpshared(pthread_mutexattr_t *, int);
void Pthread_mutex_init(pthread_mutex_t *, pthread_mutexattr_t *);
void Pthread_mutex_destroy(pthread_mutex_t *);
void Pthread_mutex_lock(pthread_mutex_t *);
void Pthread_mutex_unlock(pthread_mutex_t *);
void Pthread_condattr_init(pthread_condattr_t *);
void Pthread_condattr_destroy(pthread_condattr_t *);
void Pthread_condattr_setpshared(pthread_condattr_t *, int);
void Pthread_cond_broadcast(pthread_cond_t *);
void Pthread_cond_signal(pthread_cond_t *);
void Pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *);
void Pthread_cond_timedwait(pthread_cond_t *, pthread_mutex_t *,
const struct timespec *);
void Pthread_key_create(pthread_key_t *, void (*)(void *));
void Pthread_setspecific(pthread_key_t, const void *);
void Pthread_once(pthread_once_t *, void (*)(void));
long pr_thread_id(pthread_t *);
#ifdef HAVE_DOOR_H
/* typedefs to simplify declarations */
typedef void Door_server_proc(void *, char *, size_t, door_desc_t *, size_t);
typedef void Door_create_proc(door_info_t *);
/* prototypes for our doors wrapper functions */
void Door_bind(int);
void Door_call(int, door_arg_t *);
int Door_create(Door_server_proc *, void *, u_int);
void Door_cred(door_cred_t *);
void Door_info(int, door_info_t *);
void Door_return(char *, size_t, door_desc_t *, size_t);
void Door_revoke(int);
void Door_unbind(void);
Door_create_proc *Door_server_create(Door_create_proc *);
#endif /* HAVE_DOOR_H */
#ifdef HAVE_RPC_RPC_H
CLIENT *Clnt_create(const char *, u_long, u_long, const char *);
void Clnt_control(CLIENT *, u_int, char *);
#endif
#endif /* __unpipc_h */