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