| /* |
| Derived from Inferno include/kern.h and |
| Plan 9 from User Space include/libc.h |
| |
| http://code.google.com/p/inferno-os/source/browse/include/kern.h |
| http://code.swtch.com/plan9port/src/tip/include/libc.h |
| |
| Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved. |
| Revisions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com). All rights reserved. |
| Portions Copyright © 2001-2007 Russ Cox. All rights reserved. |
| Portions Copyright © 2009 The Go Authors. All rights reserved. |
| |
| Permission is hereby granted, free of charge, to any person obtaining a copy |
| of this software and associated documentation files (the "Software"), to deal |
| in the Software without restriction, including without limitation the rights |
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| copies of the Software, and to permit persons to whom the Software is |
| furnished to do so, subject to the following conditions: |
| |
| The above copyright notice and this permission notice shall be included in |
| all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| THE SOFTWARE. |
| */ |
| |
| /* |
| * Lib9 is miscellany from the Plan 9 C library that doesn't |
| * fit into libutf or into libfmt, but is still missing from traditional |
| * Unix C libraries. |
| */ |
| #ifndef _LIBC_H_ |
| #define _LIBC_H_ 1 |
| #if defined(__cplusplus) |
| extern "C" { |
| #endif |
| |
| #include <utf.h> |
| #include <fmt.h> |
| |
| /* |
| * Begin trimmed down usual libc.h |
| */ |
| |
| #ifndef nil |
| #define nil ((void*)0) |
| #endif |
| #define nelem(x) (sizeof(x)/sizeof((x)[0])) |
| |
| #ifndef offsetof |
| #define offsetof(s, m) (ulong)(&(((s*)0)->m)) |
| #endif |
| |
| extern char* strecpy(char*, char*, char*); |
| extern int tokenize(char*, char**, int); |
| |
| extern double p9cputime(void); |
| #ifndef NOPLAN9DEFINES |
| #define cputime p9cputime |
| #endif |
| /* |
| * one-of-a-kind |
| */ |
| enum |
| { |
| PNPROC = 1, |
| PNGROUP = 2 |
| }; |
| int isInf(double, int); |
| |
| extern int p9atoi(char*); |
| extern long p9atol(char*); |
| extern vlong p9atoll(char*); |
| extern double fmtcharstod(int(*)(void*), void*); |
| extern char* cleanname(char*); |
| extern int exitcode(char*); |
| extern void exits(char*); |
| extern double frexp(double, int*); |
| extern char* p9getenv(char*); |
| extern int p9putenv(char*, char*); |
| extern int getfields(char*, char**, int, int, char*); |
| extern int gettokens(char *, char **, int, char *); |
| extern char* getuser(void); |
| extern char* p9getwd(char*, int); |
| extern void p9longjmp(p9jmp_buf, int); |
| extern char* mktemp(char*); |
| extern int opentemp(char*); |
| extern void p9notejmp(void*, p9jmp_buf, int); |
| extern void perror(const char*); |
| extern int postnote(int, int, char *); |
| extern double p9pow10(int); |
| extern char* searchpath(char*); |
| #define p9setjmp(b) sigsetjmp((void*)(b), 1) |
| |
| extern void sysfatal(char*, ...); |
| |
| #ifndef NOPLAN9DEFINES |
| #define atoi p9atoi |
| #define atol p9atol |
| #define atoll p9atoll |
| #define getenv p9getenv |
| #define getwd p9getwd |
| #define longjmp p9longjmp |
| #undef setjmp |
| #define setjmp p9setjmp |
| #define putenv p9putenv |
| #define notejmp p9notejmp |
| #define jmp_buf p9jmp_buf |
| #define pow10 p9pow10 |
| #undef strtod |
| #define strtod fmtstrtod |
| #define charstod fmtcharstod |
| #endif |
| |
| /* |
| * system calls |
| * |
| */ |
| #define STATMAX 65535U /* max length of machine-independent stat structure */ |
| #define DIRMAX (sizeof(Dir)+STATMAX) /* max length of Dir structure */ |
| #define ERRMAX 128 /* max length of error string */ |
| |
| #define MORDER 0x0003 /* mask for bits defining order of mounting */ |
| #define MREPL 0x0000 /* mount replaces object */ |
| #define MBEFORE 0x0001 /* mount goes before others in union directory */ |
| #define MAFTER 0x0002 /* mount goes after others in union directory */ |
| #define MCREATE 0x0004 /* permit creation in mounted directory */ |
| #define MCACHE 0x0010 /* cache some data */ |
| #define MMASK 0x0017 /* all bits on */ |
| |
| #define OREAD 0 /* open for read */ |
| #define OWRITE 1 /* write */ |
| #define ORDWR 2 /* read and write */ |
| #define OEXEC 3 /* execute, == read but check execute permission */ |
| #define OTRUNC 16 /* or'ed in (except for exec), truncate file first */ |
| #define ORCLOSE 64 /* or'ed in, remove on close */ |
| #define ODIRECT 128 /* or'ed in, direct access */ |
| #define OEXCL 0x1000 /* or'ed in, exclusive use (create only) */ |
| #define OAPPEND 0x4000 /* or'ed in, append only */ |
| |
| #define AEXIST 0 /* accessible: exists */ |
| #define AEXEC 1 /* execute access */ |
| #define AWRITE 2 /* write access */ |
| #define AREAD 4 /* read access */ |
| |
| /* Segattch */ |
| #define SG_RONLY 0040 /* read only */ |
| #define SG_CEXEC 0100 /* detach on exec */ |
| |
| #define NCONT 0 /* continue after note */ |
| #define NDFLT 1 /* terminate after note */ |
| #define NSAVE 2 /* clear note but hold state */ |
| #define NRSTR 3 /* restore saved state */ |
| |
| /* bits in Qid.type */ |
| #define QTDIR 0x80 /* type bit for directories */ |
| #define QTAPPEND 0x40 /* type bit for append only files */ |
| #define QTEXCL 0x20 /* type bit for exclusive use files */ |
| #define QTMOUNT 0x10 /* type bit for mounted channel */ |
| #define QTAUTH 0x08 /* type bit for authentication file */ |
| #define QTTMP 0x04 /* type bit for non-backed-up file */ |
| #define QTSYMLINK 0x02 /* type bit for symbolic link */ |
| #define QTFILE 0x00 /* type bits for plain file */ |
| |
| /* bits in Dir.mode */ |
| #define DMDIR 0x80000000 /* mode bit for directories */ |
| #define DMAPPEND 0x40000000 /* mode bit for append only files */ |
| #define DMEXCL 0x20000000 /* mode bit for exclusive use files */ |
| #define DMMOUNT 0x10000000 /* mode bit for mounted channel */ |
| #define DMAUTH 0x08000000 /* mode bit for authentication file */ |
| #define DMTMP 0x04000000 /* mode bit for non-backed-up file */ |
| #define DMSYMLINK 0x02000000 /* mode bit for symbolic link (Unix, 9P2000.u) */ |
| #define DMDEVICE 0x00800000 /* mode bit for device file (Unix, 9P2000.u) */ |
| #define DMNAMEDPIPE 0x00200000 /* mode bit for named pipe (Unix, 9P2000.u) */ |
| #define DMSOCKET 0x00100000 /* mode bit for socket (Unix, 9P2000.u) */ |
| #define DMSETUID 0x00080000 /* mode bit for setuid (Unix, 9P2000.u) */ |
| #define DMSETGID 0x00040000 /* mode bit for setgid (Unix, 9P2000.u) */ |
| |
| #define DMREAD 0x4 /* mode bit for read permission */ |
| #define DMWRITE 0x2 /* mode bit for write permission */ |
| #define DMEXEC 0x1 /* mode bit for execute permission */ |
| |
| #ifdef RFMEM /* FreeBSD, OpenBSD */ |
| #undef RFFDG |
| #undef RFNOTEG |
| #undef RFPROC |
| #undef RFMEM |
| #undef RFNOWAIT |
| #undef RFCFDG |
| #undef RFNAMEG |
| #undef RFENVG |
| #undef RFCENVG |
| #undef RFCFDG |
| #undef RFCNAMEG |
| #endif |
| |
| enum |
| { |
| RFNAMEG = (1<<0), |
| RFENVG = (1<<1), |
| RFFDG = (1<<2), |
| RFNOTEG = (1<<3), |
| RFPROC = (1<<4), |
| RFMEM = (1<<5), |
| RFNOWAIT = (1<<6), |
| RFCNAMEG = (1<<10), |
| RFCENVG = (1<<11), |
| RFCFDG = (1<<12) |
| /* RFREND = (1<<13), */ |
| /* RFNOMNT = (1<<14) */ |
| }; |
| |
| typedef |
| struct Qid |
| { |
| uvlong path; |
| ulong vers; |
| uchar type; |
| } Qid; |
| |
| typedef |
| struct Dir { |
| /* system-modified data */ |
| ushort type; /* server type */ |
| uint dev; /* server subtype */ |
| /* file data */ |
| Qid qid; /* unique id from server */ |
| ulong mode; /* permissions */ |
| ulong atime; /* last read time */ |
| ulong mtime; /* last write time */ |
| vlong length; /* file length */ |
| char *name; /* last element of path */ |
| char *uid; /* owner name */ |
| char *gid; /* group name */ |
| char *muid; /* last modifier name */ |
| |
| /* 9P2000.u extensions */ |
| uint uidnum; /* numeric uid */ |
| uint gidnum; /* numeric gid */ |
| uint muidnum; /* numeric muid */ |
| char *ext; /* extended info */ |
| } Dir; |
| |
| typedef |
| struct Waitmsg |
| { |
| int pid; /* of loved one */ |
| ulong time[3]; /* of loved one & descendants */ |
| char *msg; |
| } Waitmsg; |
| |
| extern void _exits(char*); |
| |
| extern void abort(void); |
| extern long p9alarm(ulong); |
| extern int await(char*, int); |
| extern int awaitfor(int, char*, int); |
| extern int awaitnohang(char*, int); |
| extern int p9chdir(char*); |
| extern int close(int); |
| extern int p9create(char*, int, ulong); |
| extern int p9dup(int, int); |
| extern int errstr(char*, uint); |
| extern int p9exec(char*, char*[]); |
| extern int p9execl(char*, ...); |
| extern int p9rfork(int); |
| extern int noted(int); |
| extern int notify(void(*)(void*, char*)); |
| extern int noteenable(char*); |
| extern int notedisable(char*); |
| extern int notifyon(char*); |
| extern int notifyoff(char*); |
| extern int p9open(char*, int); |
| extern int fd2path(int, char*, int); |
| extern long readn(int, void*, long); |
| extern int remove(const char*); |
| extern vlong p9seek(int, vlong, int); |
| extern int p9sleep(long); |
| extern Waitmsg* p9wait(void); |
| extern Waitmsg* p9waitfor(int); |
| extern Waitmsg* waitnohang(void); |
| extern int p9waitpid(void); |
| extern ulong rendezvous(ulong, ulong); |
| |
| extern char* getgoos(void); |
| extern char* getgoarch(void); |
| extern char* getgoroot(void); |
| extern char* getgoversion(void); |
| |
| #ifdef _WIN32 |
| |
| #ifndef _WIN64 |
| struct timespec { |
| int tv_sec; |
| long tv_nsec; |
| }; |
| #define execv(prog, argv) execv(prog, (const char* const*)(argv)) |
| #define execvp(prog, argv) execvp(prog, (const char**)(argv)) |
| #endif |
| |
| extern int nanosleep(const struct timespec *rqtp, struct timespec *rmtp); |
| extern int fork(void); |
| extern int pread(int fd, void *buf, int n, int off); |
| extern int pwrite(int fd, void *buf, int n, int off); |
| #undef getwd |
| #define getwd(s, ns) getcwd(s, ns) |
| #undef lseek |
| #define lseek(fd, n, base) _lseeki64(fd, n, base) |
| #define mkdir(path, perm) mkdir(path) |
| #define pipe(fd) _pipe(fd, 512, O_BINARY) |
| #else |
| #define O_BINARY 0 |
| #endif |
| |
| #ifndef NOPLAN9DEFINES |
| #define alarm p9alarm |
| #define dup p9dup |
| #define exec p9exec |
| #define execl p9execl |
| #define seek p9seek |
| #define sleep p9sleep |
| #define wait p9wait |
| #define waitpid p9waitpid |
| #define rfork p9rfork |
| #define create p9create |
| #undef open |
| #define open p9open |
| #define waitfor p9waitfor |
| #endif |
| |
| extern Dir* dirstat(char*); |
| extern Dir* dirfstat(int); |
| extern int dirwstat(char*, Dir*); |
| extern int dirfwstat(int, Dir*); |
| extern void nulldir(Dir*); |
| extern long dirreadall(int, Dir**); |
| extern void rerrstr(char*, uint); |
| extern char* sysname(void); |
| extern void werrstr(char*, ...); |
| extern char* getns(void); |
| extern char* get9root(void); |
| extern char* unsharp(char*); |
| |
| /* external names that we don't want to step on */ |
| #ifndef NOPLAN9DEFINES |
| #define main p9main |
| #endif |
| |
| /* compiler directives on plan 9 */ |
| #define SET(x) ((x)=0) |
| #define USED(x) if(x){}else{} |
| #ifdef __GNUC__ |
| # if __GNUC__ >= 3 |
| # undef USED |
| # define USED(x) ((void)(x)) |
| # endif |
| #endif |
| |
| /* command line */ |
| extern char *argv0; |
| extern void __fixargv0(void); |
| #define ARGBEGIN for((argv0?0:(argv0=(__fixargv0(),*argv))),argv++,argc--;\ |
| argv[0] && argv[0][0]=='-' && argv[0][1];\ |
| argc--, argv++) {\ |
| char *_args, *_argt;\ |
| Rune _argc;\ |
| _args = &argv[0][1];\ |
| if(_args[0]=='-' && _args[1]==0){\ |
| argc--; argv++; break;\ |
| }\ |
| _argc = 0;\ |
| while(*_args && (_args += chartorune(&_argc, _args)))\ |
| switch(_argc) |
| #define ARGEND SET(_argt);USED(_argt);USED(_argc);USED(_args);}USED(argv);USED(argc); |
| #define ARGF() (_argt=_args, _args="",\ |
| (*_argt? _argt: argv[1]? (argc--, *++argv): 0)) |
| #define EARGF(x) (_argt=_args, _args="",\ |
| (*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0))) |
| |
| #define ARGC() _argc |
| |
| #if defined(__cplusplus) |
| } |
| #endif |
| #endif /* _LIB9_H_ */ |