Advanced Programming in the UNIX® Environment

ptg10805159

Appendix A Function Prototypes 855

int fsetpos(FILE *fp,const fpos_t *pos);

<stdio.h> p. 158

Returns: 0 if OK, nonzero on error

int fstat(intfd,struct stat *buf);

<sys/stat.h> p. 93

Returns: 0 if OK,−1 on error

int fstatat(intfd,const char *restrictpath,

struct stat *restrictbuf,intflag);

<sys/stat.h> p. 93

flag:AT_SYMLINK_NOFOLLOW

Returns: 0 if OK,−1 on error

int fsync(intfd);

<unistd.h> p. 81

Returns: 0 if OK,−1 on error

long ftell(FILE *fp);

<stdio.h> p. 158

Returns: current file position indicator if OK,−1L on error

off_t ftello(FILE *fp);

<stdio.h> p. 158

Returns: current file position indicator if OK,

(off_t)− 1 on error

key_t ftok(const char *path,intid);

<sys/ipc.h> p. 557

Returns: key if OK,(key_t)− 1 on error

int ftruncate(intfd,off_tlength);

<unistd.h> p. 112

Returns: 0 if OK,−1 on error

int ftrylockfile(FILE *fp);

<stdio.h> p. 443

Returns: 0 if OK, nonzero if lock can’t be acquired

void funlockfile(FILE *fp);

<stdio.h> p. 443

int futimens(intfd,const struct timespectimes[2]);

<sys/stat.h> p. 126

Returns: 0 if OK,−1 on error