lib.h (3824B)
1 /* 2 * functions (possibly) linked in, complete, from libc. 3 */ 4 #define nelem(x) (sizeof(x)/sizeof((x)[0])) 5 #define offsetof(s, m) (ulong)(&(((s*)0)->m)) 6 7 /* 8 * mem routines 9 */ 10 11 /* 12 * string routines 13 */ 14 extern char* strecpy(char*, char*, char*); 15 16 17 18 /* 19 * one-of-a-kind 20 */ 21 extern char* cleanname(char*); 22 extern ulong getcallerpc(void*); 23 24 extern int getfields(char*, char**, int, int, char*); 25 extern int gettokens(char *, char **, int , char *); 26 extern int tokenize(char*, char**, int); 27 extern int dec64(uchar*, int, char*, int); 28 29 /* 30 * Syscall data structures 31 */ 32 #define MORDER 0x0003 /* mask for bits defining order of mounting */ 33 #define MREPL 0x0000 /* mount replaces object */ 34 #define MBEFORE 0x0001 /* mount goes before others in union directory */ 35 #define MAFTER 0x0002 /* mount goes after others in union directory */ 36 #define MCREATE 0x0004 /* permit creation in mounted directory */ 37 #define MCACHE 0x0010 /* cache some data */ 38 #define MMASK 0x0017 /* all bits on */ 39 40 #define OREAD 0 /* open for read */ 41 #define OWRITE 1 /* write */ 42 #define ORDWR 2 /* read and write */ 43 #define OEXEC 3 /* execute, == read but check execute permission */ 44 #define OTRUNC 16 /* or'ed in (except for exec), truncate file first */ 45 #define OCEXEC 32 /* or'ed in, close on exec */ 46 #define ORCLOSE 64 /* or'ed in, remove on close */ 47 #define OEXCL 0x1000 /* or'ed in, exclusive create */ 48 49 #define NCONT 0 /* continue after note */ 50 #define NDFLT 1 /* terminate after note */ 51 #define NSAVE 2 /* clear note but hold state */ 52 #define NRSTR 3 /* restore saved state */ 53 54 typedef struct Qid Qid; 55 typedef struct Dir Dir; 56 typedef struct OWaitmsg OWaitmsg; 57 typedef struct Waitmsg Waitmsg; 58 59 #define ERRMAX 128 /* max length of error string */ 60 #define KNAMELEN 28 /* max length of name held in kernel */ 61 62 /* bits in Qid.type */ 63 #define QTDIR 0x80 /* type bit for directories */ 64 #define QTAPPEND 0x40 /* type bit for append only files */ 65 #define QTEXCL 0x20 /* type bit for exclusive use files */ 66 #define QTMOUNT 0x10 /* type bit for mounted channel */ 67 #define QTAUTH 0x08 /* type bit for authentication file */ 68 #define QTFILE 0x00 /* plain file */ 69 70 /* bits in Dir.mode */ 71 #define DMDIR 0x80000000 /* mode bit for directories */ 72 #define DMAPPEND 0x40000000 /* mode bit for append only files */ 73 #define DMEXCL 0x20000000 /* mode bit for exclusive use files */ 74 #define DMMOUNT 0x10000000 /* mode bit for mounted channel */ 75 #define DMREAD 0x4 /* mode bit for read permission */ 76 #define DMWRITE 0x2 /* mode bit for write permission */ 77 #define DMEXEC 0x1 /* mode bit for execute permission */ 78 79 struct Qid 80 { 81 uvlong path; 82 ulong vers; 83 uchar type; 84 }; 85 86 struct Dir { 87 /* system-modified data */ 88 ushort type; /* server type */ 89 uint dev; /* server subtype */ 90 /* file data */ 91 Qid qid; /* unique id from server */ 92 ulong mode; /* permissions */ 93 ulong atime; /* last read time */ 94 ulong mtime; /* last write time */ 95 vlong length; /* file length: see <u.h> */ 96 char *name; /* last element of path */ 97 char *uid; /* owner name */ 98 char *gid; /* group name */ 99 char *muid; /* last modifier name */ 100 }; 101 102 struct OWaitmsg 103 { 104 char pid[12]; /* of loved one */ 105 char time[3*12]; /* of loved one and descendants */ 106 char msg[64]; /* compatibility BUG */ 107 }; 108 109 struct Waitmsg 110 { 111 int pid; /* of loved one */ 112 ulong time[3]; /* of loved one and descendants */ 113 char msg[ERRMAX]; /* actually variable-size in user mode */ 114 }; 115 116 #include "utf.h" 117 #include "fmt.h" 118 119 extern int dec64(uchar*, int, char*, int); 120 extern int enc64(char*, int, uchar*, int); 121 extern int dec32(uchar*, int, char*, int); 122 extern int enc32(char*, int, uchar*, int); 123 extern int dec16(uchar*, int, char*, int); 124 extern int enc16(char*, int, uchar*, int); 125 extern int encodefmt(Fmt*); 126 extern int fmtstrcpy(Fmt*, char*); 127 128 extern void* mallocz(ulong, int); 129 extern void werrstr(char*, ...); 130