1 2 /* 3 * functions (possibly) linked in, complete, from libc. 4 */ 5 #define nelem(x) (sizeof(x)/sizeof((x)[0])) 6 #define offsetof(s, m) (ulong)(&(((s*)0)->m)) 7 #define assert(x) if(x){}else _assert("x") 8 9 /* 10 * mem routines 11 */ 12 extern void* memccpy(void*, void*, int, ulong); 13 extern void* memset(void*, int, ulong); 14 extern int memcmp(void*, void*, ulong); 15 extern void* memmove(void*, void*, ulong); 16 extern void* memchr(void*, int, ulong); 17 18 /* 19 * string routines 20 */ 21 extern char* strcat(char*, char*); 22 extern char* strchr(char*, int); 23 extern char* strrchr(char*, int); 24 extern int strcmp(char*, char*); 25 extern char* strcpy(char*, char*); 26 extern char* strecpy(char*, char*, char*); 27 extern char* strncat(char*, char*, long); 28 extern char* strncpy(char*, char*, long); 29 extern int strncmp(char*, char*, long); 30 extern long strlen(char*); 31 extern char* strdup(char*); 32 extern char* strstr(char*, char*); 33 extern int cistrncmp(char*, char*, int); 34 extern int cistrcmp(char*, char*); 35 extern char* cistrstr(char*, char*); 36 extern int atoi(char*); 37 extern int fullrune(char*, int); 38 39 enum 40 { 41 UTFmax = 4, /* maximum bytes per rune */ 42 Runesync = 0x80, /* cannot represent part of a UTF sequence (<) */ 43 Runeself = 0x80, /* rune and UTF sequences are the same (<) */ 44 Runeerror = 0xFFFD, /* decoding error in UTF */ 45 Runemax = 0x10FFFF, /* 21-bit rune */ 46 Runemask = 0x1FFFFF, /* bits used by runes (see grep) */ 47 }; 48 49 /* 50 * rune routines 51 */ 52 extern int runetochar(char*, Rune*); 53 extern int chartorune(Rune*, char*); 54 extern char* utfrune(char*, long); 55 extern int utflen(char*); 56 extern int runelen(long); 57 58 extern int abs(int); 59 60 /* 61 * print routines 62 */ 63 typedef struct Fmt Fmt; 64 typedef int (*Fmts)(Fmt*); 65 struct Fmt{ 66 uchar runes; /* output buffer is runes or chars? */ 67 void *start; /* of buffer */ 68 void *to; /* current place in the buffer */ 69 void *stop; /* end of the buffer; overwritten if flush fails */ 70 int (*flush)(Fmt *); /* called when to == stop */ 71 void *farg; /* to make flush a closure */ 72 int nfmt; /* num chars formatted so far */ 73 va_list args; /* args passed to dofmt */ 74 int r; /* % format Rune */ 75 int width; 76 int prec; 77 ulong flags; 78 }; 79 extern int print(char*, ...); 80 extern char* seprint(char*, char*, char*, ...); 81 extern char* vseprint(char*, char*, char*, va_list); 82 extern char* smprint(char*, ...); 83 extern char* vsmprint(char*, va_list); 84 extern int snprint(char*, int, char*, ...); 85 extern int vsnprint(char*, int, char*, va_list); 86 extern int sprint(char*, char*, ...); 87 88 extern int fmtinstall(int, int (*)(Fmt*)); 89 extern void quotefmtinstall(void); 90 extern int fmtprint(Fmt*, char*, ...); 91 extern int fmtstrcpy(Fmt*, char*); 92 93 #pragma varargck argpos fmtprint 2 94 #pragma varargck argpos print 1 95 #pragma varargck argpos seprint 3 96 #pragma varargck argpos snprint 3 97 #pragma varargck argpos sprint 2 98 #pragma varargck argpos vseprint 3 99 #pragma varargck argpos vsnprint 3 100 101 extern int fltconv(Fmt*); 102 103 /* 104 * math 105 */ 106 extern int isNaN(double); 107 extern int isInf(double, int); 108 extern double floor(double); 109 extern double frexp(double, int*); 110 extern double pow10(int); 111 112 /* 113 * one-of-a-kind 114 */ 115 extern char* cleanname(char*); 116 extern ulong getcallerpc(void*); 117 118 extern long strtol(char*, char**, int); 119 extern ulong strtoul(char*, char**, int); 120 extern vlong strtoll(char*, char**, int); 121 extern uvlong strtoull(char*, char**, int); 122 extern char etext[]; 123 extern char edata[]; 124 extern char end[]; 125 extern int getfields(char*, char**, int, int, char*); 126 extern int tokenize(char*, char**, int); 127 extern int dec64(uchar*, int, char*, int); 128 extern void qsort(void*, long, long, int (*)(void*, void*)); 129 130 extern int toupper(int); 131 extern char* netmkaddr(char*, char*, char*); 132 extern int myetheraddr(uchar*, char*); 133 extern int parseether(uchar*, char*); 134 135 /* 136 * network dialling 137 */ 138 #define NETPATHLEN 40 139 140 /* 141 * Syscall data structures 142 */ 143 #define MORDER 0x0003 /* mask for bits defining order of mounting */ 144 #define MREPL 0x0000 /* mount replaces object */ 145 #define MBEFORE 0x0001 /* mount goes before others in union directory */ 146 #define MAFTER 0x0002 /* mount goes after others in union directory */ 147 #define MCREATE 0x0004 /* permit creation in mounted directory */ 148 #define MCACHE 0x0010 /* cache some data */ 149 #define MMASK 0x0017 /* all bits on */ 150 151 #define OREAD 0 /* open for read */ 152 #define OWRITE 1 /* write */ 153 #define ORDWR 2 /* read and write */ 154 #define OEXEC 3 /* execute, == read but check execute permission */ 155 #define OTRUNC 16 /* or'ed in (except for exec), truncate file first */ 156 #define OCEXEC 32 /* or'ed in, close on exec */ 157 #define ORCLOSE 64 /* or'ed in, remove on close */ 158 #define OEXCL 0x1000 /* or'ed in, exclusive create */ 159 160 #define NCONT 0 /* continue after note */ 161 #define NDFLT 1 /* terminate after note */ 162 #define NSAVE 2 /* clear note but hold state */ 163 #define NRSTR 3 /* restore saved state */ 164 165 typedef struct Qid Qid; 166 typedef struct Dir Dir; 167 typedef struct Waitmsg Waitmsg; 168 169 #define STATMAX 65535U /* max length of machine-independent stat structure */ 170 #define ERRMAX 128 /* max length of error string */ 171 #define KNAMELEN 28 /* max length of name held in kernel */ 172 173 /* bits in Qid.type */ 174 #define QTDIR 0x80 /* type bit for directories */ 175 #define QTAPPEND 0x40 /* type bit for append only files */ 176 #define QTEXCL 0x20 /* type bit for exclusive use files */ 177 #define QTMOUNT 0x10 /* type bit for mounted channel */ 178 #define QTAUTH 0x08 /* type bit for authentication file */ 179 #define QTFILE 0x00 /* plain file */ 180 181 /* bits in Dir.mode */ 182 #define DMDIR 0x80000000 /* mode bit for directories */ 183 #define DMAPPEND 0x40000000 /* mode bit for append only files */ 184 #define DMEXCL 0x20000000 /* mode bit for exclusive use files */ 185 #define DMMOUNT 0x10000000 /* mode bit for mounted channel */ 186 #define DMREAD 0x4 /* mode bit for read permission */ 187 #define DMWRITE 0x2 /* mode bit for write permission */ 188 #define DMEXEC 0x1 /* mode bit for execute permission */ 189 190 struct Qid 191 { 192 uvlong path; 193 ulong vers; 194 uchar type; 195 }; 196 197 struct Dir { 198 /* system-modified data */ 199 ushort type; /* server type */ 200 uint dev; /* server subtype */ 201 /* file data */ 202 Qid qid; /* unique id from server */ 203 ulong mode; /* permissions */ 204 ulong atime; /* last read time */ 205 ulong mtime; /* last write time */ 206 vlong length; /* file length: see <u.h> */ 207 char *name; /* last element of path */ 208 char *uid; /* owner name */ 209 char *gid; /* group name */ 210 char *muid; /* last modifier name */ 211 }; 212 213 struct Waitmsg 214 { 215 int pid; /* of loved one */ 216 ulong time[3]; /* of loved one and descendants */ 217 char msg[ERRMAX]; /* actually variable-size in user mode */ 218 }; 219