1 /* Copyright (c) 2007 Jeff Johnston <jjohnstn@redhat.com> */ 2 3 #ifndef _SYS__DEFAULT_FCNTL_H_ 4 #ifdef __cplusplus 5 extern "C" { 6 #endif 7 #define _SYS__DEFAULT_FCNTL_H_ 8 #include <_ansi.h> 9 #include <sys/cdefs.h> 10 #define _FOPEN (-1) /* from sys/file.h, kernel use only */ 11 #define _FREAD 0x0001 /* read enabled */ 12 #define _FWRITE 0x0002 /* write enabled */ 13 #define _FAPPEND 0x0400 /* append (writes guaranteed at the end) */ 14 #define _FMARK 0x0010 /* internal; mark during gc() */ 15 #define _FDEFER 0x0020 /* internal; defer for next gc pass */ 16 #define _FASYNC 0x0008 /* signal pgrp when data ready */ 17 #define _FSHLOCK 0x0080 /* BSD flock() shared lock present */ 18 #define _FEXLOCK 0x0100 /* BSD flock() exclusive lock present */ 19 #define _FCREAT 0x0040 /* open with file create */ 20 #define _FTRUNC 0x0200 /* open with truncation */ 21 #define _FEXCL 0x0800 /* error on open if file exists */ 22 #define _FNBIO 0x1000 /* non blocking I/O (sys5 style) */ 23 #define _FSYNC 0x2000 /* do all writes synchronously */ 24 #define _FNONBLOCK 0x4000 /* non blocking I/O (POSIX style) */ 25 #define _FNDELAY _FNONBLOCK /* non blocking I/O (4.2 style) */ 26 #define _FNOCTTY 0x8000 /* don't assign a ctty on this open */ 27 #if defined (__CYGWIN__) 28 #define _FBINARY 0x10000 29 #define _FTEXT 0x20000 30 #endif 31 #define _FNOINHERIT 0x40000 32 #define _FDIRECT 0x80000 33 #define _FNOFOLLOW 0x100000 34 #define _FDIRECTORY 0x200000 35 #define _FEXECSRCH 0x400000 36 #if defined (__CYGWIN__) 37 #define _FTMPFILE 0x800000 38 #define _FNOATIME 0x1000000 39 #define _FPATH 0x2000000 40 #endif 41 42 #define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR) 43 44 /* 45 * Flag values for open(2) and fcntl(2) 46 * The kernel adds 1 to the open modes to turn it into some 47 * combination of FREAD and FWRITE. 48 */ 49 #define O_RDONLY 0 /* +1 == FREAD */ 50 #define O_WRONLY 1 /* +1 == FWRITE */ 51 #define O_RDWR 2 /* +1 == FREAD|FWRITE */ 52 #define O_APPEND _FAPPEND 53 #define O_CREAT _FCREAT 54 #define O_TRUNC _FTRUNC 55 #define O_EXCL _FEXCL 56 #define O_SYNC _FSYNC 57 /* O_NDELAY _FNDELAY set in include/fcntl.h */ 58 /* O_NDELAY _FNBIO set in include/fcntl.h */ 59 #define O_NONBLOCK _FNONBLOCK 60 #define O_NOCTTY _FNOCTTY 61 62 /* POSIX-1.2008 specific flags */ 63 #if __POSIX_VISIBLE >= 200809 64 #define O_CLOEXEC _FNOINHERIT 65 #define O_NOFOLLOW _FNOFOLLOW 66 #define O_DIRECTORY _FDIRECTORY 67 #define O_EXEC _FEXECSRCH 68 #define O_SEARCH _FEXECSRCH 69 #endif 70 71 #if __BSD_VISIBLE 72 #define O_DIRECT _FDIRECT 73 #endif 74 75 #if defined (__CYGWIN__) 76 #define O_BINARY _FBINARY 77 #define O_TEXT _FTEXT 78 #define O_DSYNC _FSYNC 79 #define O_RSYNC _FSYNC 80 81 /* Linux-specific flags */ 82 #if __GNU_VISIBLE 83 #define O_TMPFILE _FTMPFILE 84 #define O_NOATIME _FNOATIME 85 #define O_PATH _FPATH 86 #endif 87 #endif 88 89 #if __MISC_VISIBLE 90 91 /* 92 * Flags that work for fcntl(fd, F_SETFL, FXXXX) 93 */ 94 #define FAPPEND _FAPPEND 95 #define FSYNC _FSYNC 96 #define FASYNC _FASYNC 97 #define FNBIO _FNBIO 98 #define FNONBIO _FNONBLOCK /* XXX fix to be NONBLOCK everywhere */ 99 #define FNDELAY _FNDELAY 100 101 /* 102 * Flags that are disallowed for fcntl's (FCNTLCANT); 103 * used for opens, internal state, or locking. 104 */ 105 #define FREAD _FREAD 106 #define FWRITE _FWRITE 107 #define FMARK _FMARK 108 #define FDEFER _FDEFER 109 #define FSHLOCK _FSHLOCK 110 #define FEXLOCK _FEXLOCK 111 112 /* 113 * The rest of the flags, used only for opens 114 */ 115 #define FOPEN _FOPEN 116 #define FCREAT _FCREAT 117 #define FTRUNC _FTRUNC 118 #define FEXCL _FEXCL 119 #define FNOCTTY _FNOCTTY 120 121 #endif /* __MISC_VISIBLE */ 122 123 #if __BSD_VISIBLE 124 #define FNONBLOCK _FNONBLOCK 125 #endif /* __BSD_VISIBLE */ 126 127 /* XXX close on exec request; must match UF_EXCLOSE in user.h */ 128 #define FD_CLOEXEC 1 /* posix */ 129 130 /* fcntl(2) requests */ 131 #define F_DUPFD 0 /* Duplicate fildes */ 132 #define F_GETFD 1 /* Get fildes flags (close on exec) */ 133 #define F_SETFD 2 /* Set fildes flags (close on exec) */ 134 #define F_GETFL 3 /* Get file flags */ 135 #define F_SETFL 4 /* Set file flags */ 136 #if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 137 #define F_GETOWN 5 /* Get owner - for ASYNC */ 138 #define F_SETOWN 6 /* Set owner - for ASYNC */ 139 #endif /* __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 */ 140 #define F_GETLK 7 /* Get record-locking information */ 141 #define F_SETLK 8 /* Set or Clear a record-lock (Non-Blocking) */ 142 #define F_SETLKW 9 /* Set or Clear a record-lock (Blocking) */ 143 #if __MISC_VISIBLE 144 #define F_RGETLK 10 /* Test a remote lock to see if it is blocked */ 145 #define F_RSETLK 11 /* Set or unlock a remote lock */ 146 #define F_CNVT 12 /* Convert a fhandle to an open fd */ 147 #define F_RSETLKW 13 /* Set or Clear remote record-lock(Blocking) */ 148 #endif /* __MISC_VISIBLE */ 149 #if __POSIX_VISIBLE >= 200809 150 #define F_DUPFD_CLOEXEC 14 /* As F_DUPFD, but set close-on-exec flag */ 151 #endif 152 153 /* fcntl(2) flags (l_type field of flock structure) */ 154 #define F_RDLCK 1 /* read lock */ 155 #define F_WRLCK 2 /* write lock */ 156 #define F_UNLCK 3 /* remove lock(s) */ 157 #if __MISC_VISIBLE 158 #define F_UNLKSYS 4 /* remove remote locks for a given system */ 159 #endif /* __MISC_VISIBLE */ 160 161 #if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809 162 /* Special descriptor value to denote the cwd in calls to openat(2) etc. */ 163 #define AT_FDCWD -2 164 165 /* Flag values for faccessat2) et al. */ 166 #define AT_EACCESS 0x0001 167 #define AT_SYMLINK_NOFOLLOW 0x0002 168 #define AT_SYMLINK_FOLLOW 0x0004 169 #define AT_REMOVEDIR 0x0008 170 #if __GNU_VISIBLE 171 #define AT_EMPTY_PATH 0x0010 172 #define _AT_NULL_PATHNAME_ALLOWED 0x4000 /* Internal flag used by futimesat */ 173 #endif 174 #endif 175 176 #if __BSD_VISIBLE 177 /* lock operations for flock(2) */ 178 #define LOCK_SH 0x01 /* shared file lock */ 179 #define LOCK_EX 0x02 /* exclusive file lock */ 180 #define LOCK_NB 0x04 /* don't block when locking */ 181 #define LOCK_UN 0x08 /* unlock file */ 182 #endif 183 184 /*#include <sys/stdtypes.h>*/ 185 186 #ifndef __CYGWIN__ 187 /* file segment locking set data type - information passed to system by user */ 188 struct flock { 189 short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */ 190 short l_whence; /* flag to choose starting offset */ 191 long l_start; /* relative offset, in bytes */ 192 long l_len; /* length, in bytes; 0 means lock to EOF */ 193 short l_pid; /* returned with F_GETLK */ 194 short l_xxx; /* reserved for future use */ 195 }; 196 #endif /* __CYGWIN__ */ 197 198 #if __MISC_VISIBLE 199 /* extended file segment locking set data type */ 200 struct eflock { 201 short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */ 202 short l_whence; /* flag to choose starting offset */ 203 long l_start; /* relative offset, in bytes */ 204 long l_len; /* length, in bytes; 0 means lock to EOF */ 205 short l_pid; /* returned with F_GETLK */ 206 short l_xxx; /* reserved for future use */ 207 long l_rpid; /* Remote process id wanting this lock */ 208 long l_rsys; /* Remote system id wanting this lock */ 209 }; 210 #endif /* __MISC_VISIBLE */ 211 212 #include <sys/types.h> 213 #include <sys/stat.h> /* sigh. for the mode bits for open/creat */ 214 215 extern int open (const char *, int, ...); 216 #if __ATFILE_VISIBLE 217 extern int openat (int, const char *, int, ...); 218 #endif 219 extern int creat (const char *, mode_t); 220 extern int fcntl (int, int, ...); 221 #if __BSD_VISIBLE 222 extern int flock (int, int); 223 #endif 224 #if __GNU_VISIBLE 225 #include <sys/time.h> 226 extern int futimesat (int, const char *, const struct timeval [2]); 227 #endif 228 229 /* Provide _<systemcall> prototypes for functions provided by some versions 230 of newlib. */ 231 #ifdef _LIBC 232 extern int open (const char *, int, ...); 233 extern int fcntl (int, int, ...); 234 #ifdef __LARGE64_FILES 235 extern int open64 (const char *, int, ...); 236 #endif 237 #endif 238 239 #ifdef __cplusplus 240 } 241 #endif 242 #endif /* !_SYS__DEFAULT_FCNTL_H_ */ 243
