CSCE 510 Function Prototypes

• int open(const char *path, int oflag, /* mode_t mode */...);
• int close (int filedes );
• int creat(const char *path, mode_t mode);
• off_t lseek(int fildes, off_t offset, int whence);
• ssize_t read(int filedes, void *buffer, size_t nbytes);
• ssize_t write(int filedes, void *buffer, size_t nbytes);
• void (*signal(int sig, void (*function) (int))) (int);
• pid_t getpid( void );
• char *strcat(char *s1, const char *s2);
• int strcmp(const char *s1, const char *s2);
• char *strcpy(char *s1, const char *s2);
• int strncmp(const char *s1, const char *s2, size_t n);
• char *strncpy(char *s1, const char *s2, size_t n);
• char *strdup(const char *s1);
• size_t strlen(const char *s);
• char *strchr(const char *s, int c);
• char *strrchr(const char *s, int c);
• char *strstr(const char *s1, const char *s2);
• char *strtok(char *s1, const char *s2);
• char *strtok_r(char *s1, const char *s2, char **savept);
• char *strerror(int errnum);
• int dup(int filedes );
• int dup2(int old, int new );
• int stat(const char *path, struct stat *buf);
• int lstat(const char *path, struct stat *buf);
• int fstat(int fildes, struct stat *buf);
• DIR *opendir(const char *dirname);
• struct dirent *readdir(DIR *dirp);
• void rewinddir(DIR *dp);
• int closedir(DIR *dp);
• int mkdir(const char *path, mode_t mode);
• int rmdir(const char *path);
• int statvfs(const char *path, struct statvfs *buf);
• int fstatvfs(int fildes, struct statvfs *buf);
• int rename(const char *old, const char *new);
• char * getenv(char *p);
• pid_t fork(void); int execl(const char *path, const char *arg0, ..., const char *argn, char * /*NULL*/);
• int execv(const char *path, char *const argv[]);
• int execle(const char *path, const char *arg0, ..., const char *argn, char * /*NULL*/, char *const envp[]);
• int execve(const char *path, char *const argv[], char *const envp[]);
• int execlp(const char *file, const char *arg0, ..., const char *argn, char * /*NULL*/);
• int execvp(const char *file, char *const argv[]);
• void *mmap(void *addr, size_t len, int prot, int flags, int fd, off_t off);
• int munmap(void *addr, size_t len);
• void (*signal (int sig, void (*disp)(int)))(int);
• int kill(pid_t pid, int sig);
• int sigaction(int sig, const struct sigaction *act, struct sigaction *oact);
• int sigprocmask(int how, const sigset_t *set, sigset_t *oset);
• int sigpending(sigset_t *set);
• int sigsetjmp(sigjmp_buf env, int savemask);
• void siglongjmp(sigjmp_buf env, int val);
• int sigemptyset(sigset_t *set);
• int sigfillset(sigset_t *set);
• int sigaddset(sigset_t *set, int signo);
• int sigdelset(sigset_t *set, int signo);
• int sigismember(sigset_t *set, int signo);
• int mknod(const char *path, mode_t mode, dev_t dev);
• int lockf(int fildes, int function, off_t size);
• int fcntl(int fildes, int cmd, /* arg */ ...);
• CMDS for fcntl : F_GETFD, F_SETFD, F_SETLK, F_GETLK, F_SETLKW
  struct flock { ... short l_type; /* Type of lock: F_RDLCK, F_WRLCK, F_UNLCK */ short l_whence; /* How to interpret l_start: SEEK_SET, SEEK_CUR, SEEK_END */ off_t l_start; /* Starting offset for lock */ off_t l_len; /* Number of bytes to lock */ pid_t l_pid; /* PID of process blocking our lock (F_GETLK only) */ ... };
• int pipe(int fildes[2]);
• int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine, void*),void *arg);
• int pthread_join(pthread_t thread, void **value_ptr);
• int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr);
• int pthread_mutex_lock(pthread_mutex_t *mutex);
• int pthread_mutex_trylock(pthread_mutex_t *mutex);
• int pthread_mutex_unlock(pthread_mutex_t *mutex);
• key_t ftok(const char *pathname, int proj_id);
• int msgget(key_t key, int msgflg);
• int msgctl(int msqid, int cmd, struct msqid_ds *buf);
• int msgsnd(int msqid, struct msgbuf *msgp, size_t msgsz, int msgflg);
• int msgsnd(int msqid, struct msgbuf *msgp, size_t msgsz, int msgflg);
• int semget(key_t key, int nsems, int semflg);
• int semctl(int semid, int semnum, int cmd, ...);
• union semun { int val; /* value for SETVAL */ struct semid_ds *buf; /* buffer for IPC_STAT, IPC_SET */ unsigned short *array; /* array for GETALL, SETALL */ /* Linux specific part: */ struct seminfo *__buf; /* buffer for IPC_INFO */ };
• int socket(int domain, int type, int protocol);
• int bind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen);
• int accept(int s, struct sockaddr *addr, socklen_t *addrlen);
• int listen(int s, int backlog);
• int semop(int semid, struct sembuf *sops, unsigned nsops);
• struct hostent *gethostbyname(const char *name);
• int gethostname(char *name, size_t len);

struct stat {
        dev_t           st_dev;
        ino_t           st_ino;
        mode_t          st_mode;
        nlink_t         st_nlink;
        uid_t           st_uid;
        gid_t           st_gid;
        dev_t           st_rdev;
        off_t           st_size;
        timestruc_t     st_atim;
        timestruc_t     st_mtim;
        timestruc_t     st_ctim;
        blksize_t       st_blksize;
        blkcnt_t        st_blocks;
        char            st_fstype[_ST_FSTYPSZ];
};
#define S_IRWXU         00700   /* read, write, execute: owner */
#define S_IRUSR         00400   /* read permission: owner */
#define S_IWUSR         00200   /* write permission: owner */
#define S_IXUSR         00100   /* execute permission: owner */
#define S_IRWXG         00070   /* read, write, execute: group */
#define S_IRGRP         00040   /* read permission: group */
#define S_IWGRP         00020   /* write permission: group */
#define S_IXGRP         00010   /* execute permission: group */
#define S_IRWXO         00007   /* read, write, execute: other */
#define S_IROTH         00004   /* read permission: other */
#define S_IWOTH         00002   /* write permission: other */
#define S_IXOTH         00001   /* execute permission: other */

#define S_ISFIFO(mode)  (((mode)&0xF000) == 0x1000)
#define S_ISCHR(mode)   (((mode)&0xF000) == 0x2000)
#define S_ISDIR(mode)   (((mode)&0xF000) == 0x4000)
#define S_ISBLK(mode)   (((mode)&0xF000) == 0x6000)
#define S_ISREG(mode)   (((mode)&0xF000) == 0x8000)
#define S_ISLNK(mode)   (((mode)&0xF000) == 0xa000)
#define S_ISSOCK(mode)  (((mode)&0xF000) == 0xc000)
#define S_ISDOOR(mode)  (((mode)&0xF000) == 0xd000)

stdio.h macros
ar header