1 /* This file is to be kept in sync with newlib/libc/include/sys/fcntl.h, 2 on which it is based, except values used or returned by syscalls must 3 be those of the Linux/CRIS kernel. */ 4 5 #ifndef _FCNTL_ 6 #ifdef __cplusplus 7 extern "C" { 8 #endif 9 #define _FCNTL_ 10 #include <_ansi.h> 11 #define _FOPEN (-1) /* from sys/file.h, kernel use only */ 12 #define _FREAD 0x0001 /* read enabled */ 13 #define _FWRITE 0x0002 /* write enabled */ 14 #define _FNDELAY 0x0800 /* non blocking I/O (4.2 style) */ 15 #define _FAPPEND 0x0400 /* append (writes guaranteed at the end) */ 16 #define _FMARK 0x0010 /* internal; mark during gc() */ 17 #define _FDEFER 0x0020 /* internal; defer for next gc pass */ 18 #define _FASYNC 0x2000 /* signal pgrp when data ready */ 19 #define _FCREAT 0x0040 /* open with file create */ 20 #define _FTRUNC 0x0200 /* open with truncation */ 21 #define _FEXCL 0x0080 /* error on open if file exists */ 22 #define _FNBIO _FNONBLOCK /* non blocking I/O (sys5 style) */ 23 #define _FSYNC 0x1000 /* do all writes synchronously */ 24 #define _FNONBLOCK 0x0800 /* non blocking I/O (POSIX style) */ 25 #define _FNOCTTY 0x0100 /* don't assign a ctty on this open */ 26 27 #define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR) 28 29 /* 30 * Flag values for open(2) and fcntl(2) 31 * The kernel adds 1 to the open modes to turn it into some 32 * combination of FREAD and FWRITE. 33 */ 34 #define O_RDONLY 0 /* +1 == FREAD */ 35 #define O_WRONLY 1 /* +1 == FWRITE */ 36 #define O_RDWR 2 /* +1 == FREAD|FWRITE */ 37 #define O_APPEND _FAPPEND 38 #define O_CREAT _FCREAT 39 #define O_TRUNC _FTRUNC 40 #define O_EXCL _FEXCL 41 /* O_SYNC _FSYNC not posix, defined below */ 42 /* O_NDELAY _FNDELAY set in include/fcntl.h */ 43 /* O_NDELAY _FNBIO set in 5include/fcntl.h */ 44 #define O_NONBLOCK _FNONBLOCK 45 #define O_NOCTTY _FNOCTTY 46 47 #ifndef _POSIX_SOURCE 48 49 #define O_SYNC _FSYNC 50 51 /* 52 * Flags that work for fcntl(fd, F_SETFL, FXXXX) 53 */ 54 #define FAPPEND _FAPPEND 55 #define FSYNC _FSYNC 56 #define FASYNC _FASYNC 57 #define FNBIO _FNBIO 58 #define FNONBIO _FNONBLOCK /* XXX fix to be NONBLOCK everywhere */ 59 #define FNDELAY _FNDELAY 60 61 /* 62 * Flags that are disallowed for fcntl's (FCNTLCANT); 63 * used for opens, internal state, or locking. 64 */ 65 #define FREAD _FREAD 66 #define FWRITE _FWRITE 67 #define FMARK _FMARK 68 #define FDEFER _FDEFER 69 #define FSHLOCK _FSHLOCK 70 #define FEXLOCK _FEXLOCK 71 72 /* 73 * The rest of the flags, used only for opens 74 */ 75 #define FOPEN _FOPEN 76 #define FCREAT _FCREAT 77 #define FTRUNC _FTRUNC 78 #define FEXCL _FEXCL 79 #define FNOCTTY _FNOCTTY 80 81 #endif /* !_POSIX_SOURCE */ 82 83 /* XXX close on exec request; must match UF_EXCLOSE in user.h */ 84 #define FD_CLOEXEC 1 /* posix */ 85 86 /* fcntl(2) requests */ 87 #define F_DUPFD 0 /* dup */ 88 #define F_GETFD 1 /* get f_flags */ 89 #define F_SETFD 2 /* set f_flags */ 90 #define F_GETFL 3 /* more flags (cloexec) */ 91 #define F_SETFL 4 92 #define F_GETLK 5 93 #define F_SETLK 6 94 #define F_SETLKW 7 95 96 #define F_SETOWN 8 /* for sockets. */ 97 #define F_GETOWN 9 /* for sockets. */ 98 99 /* for F_[GET|SET]FL */ 100 #define FD_CLOEXEC 1 /* actually anything with low bit set goes */ 101 102 /* for posix fcntl() and lockf() */ 103 #define F_RDLCK 0 104 #define F_WRLCK 1 105 #define F_UNLCK 2 106 107 /* for old implementation of bsd flock () */ 108 #define F_EXLCK 4 /* or 3 */ 109 #define F_SHLCK 8 /* or 4 */ 110 111 /* operations for bsd flock(), also used by the kernel implementation */ 112 #define LOCK_SH 1 /* shared lock */ 113 #define LOCK_EX 2 /* exclusive lock */ 114 #define LOCK_NB 4 /* or'd with one of the above to prevent 115 blocking */ 116 #define LOCK_UN 8 /* remove lock */ 117 118 /* file segment locking set data type - information passed to system by user */ 119 struct flock { 120 short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */ 121 short l_whence; /* flag to choose starting offset */ 122 long l_start; /* relative offset, in bytes */ 123 long l_len; /* length, in bytes; 0 means lock to EOF */ 124 short l_pid; /* returned with F_GETLK */ 125 short l_xxx; /* reserved for future use */ 126 }; 127 128 #ifndef _POSIX_SOURCE 129 /* extended file segment locking set data type */ 130 struct eflock { 131 short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */ 132 short l_whence; /* flag to choose starting offset */ 133 long l_start; /* relative offset, in bytes */ 134 long l_len; /* length, in bytes; 0 means lock to EOF */ 135 short l_pid; /* returned with F_GETLK */ 136 short l_xxx; /* reserved for future use */ 137 long l_rpid; /* Remote process id wanting this lock */ 138 long l_rsys; /* Remote system id wanting this lock */ 139 }; 140 #endif /* !_POSIX_SOURCE */ 141 142 143 #include <sys/types.h> 144 #include <sys/stat.h> /* sigh. for the mode bits for open/creat */ 145 146 extern int open _PARAMS ((const char *, int, ...)); 147 extern int creat _PARAMS ((const char *, mode_t)); 148 extern int fcntl _PARAMS ((int, int, ...)); 149 150 /* Provide _<systemcall> prototypes for functions provided by some versions 151 of newlib. */ 152 #ifdef _COMPILING_NEWLIB 153 extern int _open _PARAMS ((const char *, int, ...)); 154 extern int _fcntl _PARAMS ((int, int, ...)); 155 #ifdef __LARGE64_FILES 156 extern int _open64 _PARAMS ((const char *, int, ...)); 157 #endif 158 #endif 159 160 #ifdef __cplusplus 161 } 162 #endif 163 #endif /* !_FCNTL_ */ 164