lseek()
#include unistd.h>
DefineValueMeaning
SEEK_SET0from beginning of file
SEEK_CUR1from current location
SEEK_END2from end of file
open()
#include fcntl.h>
DefineValueMeaning
O_RDONLY0x00read only
O_WRONLY0x01write only
O_RDWR0x02read/write
O_NDELAY0x04non-blocking I/O
O_SYNC0x08sync after writes (MiNT)
O_APPEND0x10position at EOF
O_CREAT0x20create new file if needed
O_TRUNC0x40make file 0 length
O_EXCL0x80error, if file exists
access()
#include fcntl.h>
DefineValueMeaning
F_OK0present
X_OK1executable
W_OK2writable
R_OK4readable
fcntl()
#include fcntl.h>
DefineValueMeaning
F_DUPFD0Duplicate fildes (MiNT)
F_GETFD1Get fildes flags (MiNT)
F_SETFD2Set fildes flags (MiNT)
F_GETFL3Get file flags (MiNT)
F_SETFL4Set file flags (MiNT)
F_GETLK5Get file lock (MiNT)
F_SETLK6Set file lock (MiNT)
Locking under MiNT currently only works for FIFOs.
struct flock
short l_type;type of lock
long l_start;start of locked reg.
long l_len;0 for rest of file
short l_pid;set by F_GETLK
DefineValueMeaning
F_RDLCKO_RDONLYRead lock (MiNT)
F_WRLCKO_WRONLYWrite lock (MiNT)
F_UNLCK3Unlock (MiNT)