Function open
Synopsis:
int fd = open(const char *path, int flags, mode_t mode);
Required header files:
<sys/types.h>
<sys/stat.h>
<fcntl.h>
This function opens the file specified by path according to the request specified by flags.
Function close
Synopsis:
int rc = close(int fd);
Required header files:
<unistd.h>
This function closes the file specified by file descriptor fd.
Function read
Synopsis:
ssize_t nbytes = read(int fd, void *buf, size_t n);
Required header files:
<unistd.h>
This function reads n bytes from the file specified by descriptor fd and copies them to the memory area addressed by buf.
Function write
Synopsis:
ssize_t nbytes = write(int fd, const void *buf, size_t n);
Required header files:
<unistd.h>
This function writes n bytes to the file specified by descriptor fd copying them from the memory area addressed by buf.
Produced on Sat Apr 02 2005 at 12:30:05.624.