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This commit is contained in:
Russ Cox
2005-08-08 12:50:13 +00:00
parent 0189e66e88
commit 934846f35c
382 changed files with 62614 additions and 0 deletions
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#pragma src "/sys/src/libauth"
#pragma lib "libauth.a"
/*
* Interface for typical callers.
*/
typedef struct AuthInfo AuthInfo;
typedef struct Chalstate Chalstate;
typedef struct Chapreply Chapreply;
typedef struct MSchapreply MSchapreply;
typedef struct UserPasswd UserPasswd;
typedef struct AuthRpc AuthRpc;
enum
{
MAXCHLEN= 256, /* max challenge length */
MAXNAMELEN= 256, /* maximum name length */
MD5LEN= 16,
ARok = 0, /* rpc return values */
ARdone,
ARerror,
ARneedkey,
ARbadkey,
ARwritenext,
ARtoosmall,
ARtoobig,
ARrpcfailure,
ARphase,
AuthRpcMax = 4096,
};
struct AuthRpc
{
int afd;
char ibuf[AuthRpcMax];
char obuf[AuthRpcMax];
char *arg;
uint narg;
};
struct AuthInfo
{
char *cuid; /* caller id */
char *suid; /* server id */
char *cap; /* capability (only valid on server side) */
int nsecret; /* length of secret */
uchar *secret; /* secret */
};
struct Chalstate
{
char *user;
char chal[MAXCHLEN];
int nchal;
void *resp;
int nresp;
/* for implementation only */
int afd; /* to factotum */
AuthRpc *rpc; /* to factotum */
char userbuf[MAXNAMELEN]; /* temp space if needed */
int userinchal; /* user was sent to obtain challenge */
};
struct Chapreply /* for protocol "chap" */
{
uchar id;
char resp[MD5LEN];
};
struct MSchapreply /* for protocol "mschap" */
{
char LMresp[24]; /* Lan Manager response */
char NTresp[24]; /* NT response */
};
struct UserPasswd
{
char *user;
char *passwd;
};
extern int newns(char*, char*);
extern int addns(char*, char*);
extern int noworld(char*);
extern int amount(int, char*, int, char*);
/* these two may get generalized away -rsc */
extern int login(char*, char*, char*);
extern int httpauth(char*, char*);
typedef struct Attr Attr;
typedef struct String String;
enum {
AttrNameval, /* name=val -- when matching, must have name=val */
AttrQuery, /* name? -- when matching, must be present */
AttrDefault, /* name:=val -- when matching, if present must match INTERNAL */
};
struct Attr
{
int type;
Attr *next;
char *name;
char *val;
};
typedef int AuthGetkey(char*);
int _attrfmt(Fmt*);
Attr *_copyattr(Attr*);
Attr *_delattr(Attr*, char*);
Attr *_findattr(Attr*, char*);
void _freeattr(Attr*);
Attr *_mkattr(int, char*, char*, Attr*);
Attr *_parseattr(char*);
char *_strfindattr(Attr*, char*);
#pragma varargck type "A" Attr*
extern AuthInfo* fauth_proxy(int, AuthRpc *rpc, AuthGetkey *getkey, char *params);
extern AuthInfo* auth_proxy(int fd, AuthGetkey *getkey, char *fmt, ...);
extern int auth_getkey(char*);
extern int (*amount_getkey)(char*);
extern void auth_freeAI(AuthInfo *ai);
extern int auth_chuid(AuthInfo *ai, char *ns);
extern Chalstate *auth_challenge(char*, ...);
extern AuthInfo* auth_response(Chalstate*);
extern int auth_respond(void*, uint, char*, uint, void*, uint, AuthGetkey *getkey, char*, ...);
extern void auth_freechal(Chalstate*);
extern AuthInfo* auth_userpasswd(char *user, char *passwd);
extern UserPasswd* auth_getuserpasswd(AuthGetkey *getkey, char*, ...);
extern AuthInfo* auth_getinfo(AuthRpc *rpc);
extern AuthRpc* auth_allocrpc(int afd);
extern Attr* auth_attr(AuthRpc *rpc);
extern void auth_freerpc(AuthRpc *rpc);
extern uint auth_rpc(AuthRpc *rpc, char *verb, void *a, int n);
extern int auth_wep(char*, char*, ...);
#pragma varargck argpos auth_proxy 3
#pragma varargck argpos auth_challenge 1
#pragma varargck argpos auth_respond 3
#pragma varargck argpos auth_getuserpasswd 2

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#pragma src "/sys/src/libauthsrv"
#pragma lib "libauthsrv.a"
/*
* Interface for talking to authentication server.
*/
typedef struct Ticket Ticket;
typedef struct Ticketreq Ticketreq;
typedef struct Authenticator Authenticator;
typedef struct Nvrsafe Nvrsafe;
typedef struct Passwordreq Passwordreq;
typedef struct OChapreply OChapreply;
typedef struct OMSchapreply OMSchapreply;
enum
{
ANAMELEN= 28, /* maximum size of name in previous proto */
AERRLEN= 64, /* maximum size of errstr in previous proto */
DOMLEN= 48, /* length of an authentication domain name */
DESKEYLEN= 7, /* length of a des key for encrypt/decrypt */
CHALLEN= 8, /* length of a plan9 sk1 challenge */
NETCHLEN= 16, /* max network challenge length (used in AS protocol) */
CONFIGLEN= 14,
SECRETLEN= 32, /* max length of a secret */
KEYDBOFF= 8, /* length of random data at the start of key file */
OKEYDBLEN= ANAMELEN+DESKEYLEN+4+2, /* length of an entry in old key file */
KEYDBLEN= OKEYDBLEN+SECRETLEN, /* length of an entry in key file */
OMD5LEN= 16,
};
/* encryption numberings (anti-replay) */
enum
{
AuthTreq=1, /* ticket request */
AuthChal=2, /* challenge box request */
AuthPass=3, /* change password */
AuthOK=4, /* fixed length reply follows */
AuthErr=5, /* error follows */
AuthMod=6, /* modify user */
AuthApop=7, /* apop authentication for pop3 */
AuthOKvar=9, /* variable length reply follows */
AuthChap=10, /* chap authentication for ppp */
AuthMSchap=11, /* MS chap authentication for ppp */
AuthCram=12, /* CRAM verification for IMAP (RFC2195 & rfc2104) */
AuthHttp=13, /* http domain login */
AuthVNC=14, /* VNC server login (deprecated) */
AuthTs=64, /* ticket encrypted with server's key */
AuthTc, /* ticket encrypted with client's key */
AuthAs, /* server generated authenticator */
AuthAc, /* client generated authenticator */
AuthTp, /* ticket encrypted with client's key for password change */
AuthHr, /* http reply */
};
struct Ticketreq
{
char type;
char authid[ANAMELEN]; /* server's encryption id */
char authdom[DOMLEN]; /* server's authentication domain */
char chal[CHALLEN]; /* challenge from server */
char hostid[ANAMELEN]; /* host's encryption id */
char uid[ANAMELEN]; /* uid of requesting user on host */
};
#define TICKREQLEN (3*ANAMELEN+CHALLEN+DOMLEN+1)
struct Ticket
{
char num; /* replay protection */
char chal[CHALLEN]; /* server challenge */
char cuid[ANAMELEN]; /* uid on client */
char suid[ANAMELEN]; /* uid on server */
char key[DESKEYLEN]; /* nonce DES key */
};
#define TICKETLEN (CHALLEN+2*ANAMELEN+DESKEYLEN+1)
struct Authenticator
{
char num; /* replay protection */
char chal[CHALLEN];
ulong id; /* authenticator id, ++'d with each auth */
};
#define AUTHENTLEN (CHALLEN+4+1)
struct Passwordreq
{
char num;
char old[ANAMELEN];
char new[ANAMELEN];
char changesecret;
char secret[SECRETLEN]; /* new secret */
};
#define PASSREQLEN (2*ANAMELEN+1+1+SECRETLEN)
struct OChapreply
{
uchar id;
char uid[ANAMELEN];
char resp[OMD5LEN];
};
struct OMSchapreply
{
char uid[ANAMELEN];
char LMresp[24]; /* Lan Manager response */
char NTresp[24]; /* NT response */
};
/*
* convert to/from wire format
*/
extern int convT2M(Ticket*, char*, char*);
extern void convM2T(char*, Ticket*, char*);
extern void convM2Tnoenc(char*, Ticket*);
extern int convA2M(Authenticator*, char*, char*);
extern void convM2A(char*, Authenticator*, char*);
extern int convTR2M(Ticketreq*, char*);
extern void convM2TR(char*, Ticketreq*);
extern int convPR2M(Passwordreq*, char*, char*);
extern void convM2PR(char*, Passwordreq*, char*);
/*
* convert ascii password to DES key
*/
extern int opasstokey(char*, char*);
extern int passtokey(char*, char*);
/*
* Nvram interface
*/
enum {
NVwrite = 1<<0, /* always prompt and rewrite nvram */
NVwriteonerr = 1<<1, /* prompt and rewrite nvram when corrupt */
};
struct Nvrsafe
{
char machkey[DESKEYLEN];
uchar machsum;
char authkey[DESKEYLEN];
uchar authsum;
char config[CONFIGLEN];
uchar configsum;
char authid[ANAMELEN];
uchar authidsum;
char authdom[DOMLEN];
uchar authdomsum;
};
extern uchar nvcsum(void*, int);
extern int readnvram(Nvrsafe*, int);
/*
* call up auth server
*/
extern int authdial(char *netroot, char *authdom);
/*
* exchange messages with auth server
*/
extern int _asgetticket(int, char*, char*);
extern int _asrdresp(int, char*, int);
extern int sslnegotiate(int, Ticket*, char**, char**);
extern int srvsslnegotiate(int, Ticket*, char**, char**);

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struct Cursor
{
Point offset;
uchar clr[2*16];
uchar set[2*16];
};

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#pragma src "/sys/src/libdraw"
#pragma lib "libdraw.a"
typedef struct Cachefont Cachefont;
typedef struct Cacheinfo Cacheinfo;
typedef struct Cachesubf Cachesubf;
typedef struct Display Display;
typedef struct Font Font;
typedef struct Fontchar Fontchar;
typedef struct Image Image;
typedef struct Mouse Mouse;
typedef struct Point Point;
typedef struct Rectangle Rectangle;
typedef struct RGB RGB;
typedef struct Screen Screen;
typedef struct Subfont Subfont;
#pragma varargck type "R" Rectangle
#pragma varargck type "P" Point
extern int Rfmt(Fmt*);
extern int Pfmt(Fmt*);
enum
{
DOpaque = 0xFFFFFFFF,
DTransparent = 0x00000000, /* only useful for allocimage, memfillcolor */
DBlack = 0x000000FF,
DWhite = 0xFFFFFFFF,
DRed = 0xFF0000FF,
DGreen = 0x00FF00FF,
DBlue = 0x0000FFFF,
DCyan = 0x00FFFFFF,
DMagenta = 0xFF00FFFF,
DYellow = 0xFFFF00FF,
DPaleyellow = 0xFFFFAAFF,
DDarkyellow = 0xEEEE9EFF,
DDarkgreen = 0x448844FF,
DPalegreen = 0xAAFFAAFF,
DMedgreen = 0x88CC88FF,
DDarkblue = 0x000055FF,
DPalebluegreen= 0xAAFFFFFF,
DPaleblue = 0x0000BBFF,
DBluegreen = 0x008888FF,
DGreygreen = 0x55AAAAFF,
DPalegreygreen = 0x9EEEEEFF,
DYellowgreen = 0x99994CFF,
DMedblue = 0x000099FF,
DGreyblue = 0x005DBBFF,
DPalegreyblue = 0x4993DDFF,
DPurpleblue = 0x8888CCFF,
DNotacolor = 0xFFFFFF00,
DNofill = DNotacolor,
};
enum
{
Displaybufsize = 8000,
ICOSSCALE = 1024,
Borderwidth = 4,
};
enum
{
/* refresh methods */
Refbackup = 0,
Refnone = 1,
Refmesg = 2
};
#define NOREFRESH ((void*)-1)
enum
{
/* line ends */
Endsquare = 0,
Enddisc = 1,
Endarrow = 2,
Endmask = 0x1F
};
#define ARROW(a, b, c) (Endarrow|((a)<<5)|((b)<<14)|((c)<<23))
typedef enum
{
/* Porter-Duff compositing operators */
Clear = 0,
SinD = 8,
DinS = 4,
SoutD = 2,
DoutS = 1,
S = SinD|SoutD,
SoverD = SinD|SoutD|DoutS,
SatopD = SinD|DoutS,
SxorD = SoutD|DoutS,
D = DinS|DoutS,
DoverS = DinS|DoutS|SoutD,
DatopS = DinS|SoutD,
DxorS = DoutS|SoutD, /* == SxorD */
Ncomp = 12,
} Drawop;
/*
* image channel descriptors
*/
enum {
CRed = 0,
CGreen,
CBlue,
CGrey,
CAlpha,
CMap,
CIgnore,
NChan,
};
#define __DC(type, nbits) ((((type)&15)<<4)|((nbits)&15))
#define CHAN1(a,b) __DC(a,b)
#define CHAN2(a,b,c,d) (CHAN1((a),(b))<<8|__DC((c),(d)))
#define CHAN3(a,b,c,d,e,f) (CHAN2((a),(b),(c),(d))<<8|__DC((e),(f)))
#define CHAN4(a,b,c,d,e,f,g,h) (CHAN3((a),(b),(c),(d),(e),(f))<<8|__DC((g),(h)))
#define NBITS(c) ((c)&15)
#define TYPE(c) (((c)>>4)&15)
enum {
GREY1 = CHAN1(CGrey, 1),
GREY2 = CHAN1(CGrey, 2),
GREY4 = CHAN1(CGrey, 4),
GREY8 = CHAN1(CGrey, 8),
CMAP8 = CHAN1(CMap, 8),
RGB15 = CHAN4(CIgnore, 1, CRed, 5, CGreen, 5, CBlue, 5),
RGB16 = CHAN3(CRed, 5, CGreen, 6, CBlue, 5),
RGB24 = CHAN3(CRed, 8, CGreen, 8, CBlue, 8),
BGR24 = CHAN3(CBlue, 8, CGreen, 8, CRed, 8),
RGBA32 = CHAN4(CRed, 8, CGreen, 8, CBlue, 8, CAlpha, 8),
ARGB32 = CHAN4(CAlpha, 8, CRed, 8, CGreen, 8, CBlue, 8), /* stupid VGAs */
XRGB32 = CHAN4(CIgnore, 8, CRed, 8, CGreen, 8, CBlue, 8),
XBGR32 = CHAN4(CIgnore, 8, CBlue, 8, CGreen, 8, CRed, 8),
};
extern char* chantostr(char*, ulong);
extern ulong strtochan(char*);
extern int chantodepth(ulong);
struct Point
{
int x;
int y;
};
struct Rectangle
{
Point min;
Point max;
};
typedef void (*Reffn)(Image*, Rectangle, void*);
struct Screen
{
Display *display; /* display holding data */
int id; /* id of system-held Screen */
Image *image; /* unused; for reference only */
Image *fill; /* color to paint behind windows */
};
struct Display
{
QLock qlock;
int locking; /*program is using lockdisplay */
int dirno;
int fd;
int reffd;
int ctlfd;
int imageid;
int local;
void (*error)(Display*, char*);
char *devdir;
char *windir;
char oldlabel[64];
ulong dataqid;
Image *white;
Image *black;
Image *opaque;
Image *transparent;
Image *image;
uchar *buf;
int bufsize;
uchar *bufp;
Font *defaultfont;
Subfont *defaultsubfont;
Image *windows;
Image *screenimage;
int _isnewdisplay;
};
struct Image
{
Display *display; /* display holding data */
int id; /* id of system-held Image */
Rectangle r; /* rectangle in data area, local coords */
Rectangle clipr; /* clipping region */
int depth; /* number of bits per pixel */
ulong chan;
int repl; /* flag: data replicates to tile clipr */
Screen *screen; /* 0 if not a window */
Image *next; /* next in list of windows */
};
struct RGB
{
ulong red;
ulong green;
ulong blue;
};
/*
* Subfonts
*
* given char c, Subfont *f, Fontchar *i, and Point p, one says
* i = f->info+c;
* draw(b, Rect(p.x+i->left, p.y+i->top,
* p.x+i->left+((i+1)->x-i->x), p.y+i->bottom),
* color, f->bits, Pt(i->x, i->top));
* p.x += i->width;
* to draw characters in the specified color (itself an Image) in Image b.
*/
struct Fontchar
{
int x; /* left edge of bits */
uchar top; /* first non-zero scan-line */
uchar bottom; /* last non-zero scan-line + 1 */
char left; /* offset of baseline */
uchar width; /* width of baseline */
};
struct Subfont
{
char *name;
short n; /* number of chars in font */
uchar height; /* height of image */
char ascent; /* top of image to baseline */
Fontchar *info; /* n+1 character descriptors */
Image *bits; /* of font */
int ref;
};
enum
{
/* starting values */
LOG2NFCACHE = 6,
NFCACHE = (1<<LOG2NFCACHE), /* #chars cached */
NFLOOK = 5, /* #chars to scan in cache */
NFSUBF = 2, /* #subfonts to cache */
/* max value */
MAXFCACHE = 1024+NFLOOK, /* upper limit */
MAXSUBF = 50, /* generous upper limit */
/* deltas */
DSUBF = 4,
/* expiry ages */
SUBFAGE = 10000,
CACHEAGE = 10000
};
struct Cachefont
{
Rune min; /* lowest rune value to be taken from subfont */
Rune max; /* highest rune value+1 to be taken from subfont */
int offset; /* position in subfont of character at min */
char *name; /* stored in font */
char *subfontname; /* to access subfont */
};
struct Cacheinfo
{
ushort x; /* left edge of bits */
uchar width; /* width of baseline */
schar left; /* offset of baseline */
Rune value; /* value of character at this slot in cache */
ushort age;
};
struct Cachesubf
{
ulong age; /* for replacement */
Cachefont *cf; /* font info that owns us */
Subfont *f; /* attached subfont */
};
struct Font
{
char *name;
Display *display;
short height; /* max height of image, interline spacing */
short ascent; /* top of image to baseline */
short width; /* widest so far; used in caching only */
short nsub; /* number of subfonts */
ulong age; /* increasing counter; used for LRU */
int maxdepth; /* maximum depth of all loaded subfonts */
int ncache; /* size of cache */
int nsubf; /* size of subfont list */
Cacheinfo *cache;
Cachesubf *subf;
Cachefont **sub; /* as read from file */
Image *cacheimage;
};
#define Dx(r) ((r).max.x-(r).min.x)
#define Dy(r) ((r).max.y-(r).min.y)
/*
* Image management
*/
extern Image* _allocimage(Image*, Display*, Rectangle, ulong, int, ulong, int, int);
extern Image* allocimage(Display*, Rectangle, ulong, int, ulong);
extern uchar* bufimage(Display*, int);
extern int bytesperline(Rectangle, int);
extern void closedisplay(Display*);
extern void drawerror(Display*, char*);
extern int flushimage(Display*, int);
extern int freeimage(Image*);
extern int _freeimage1(Image*);
extern int geninitdraw(char*, void(*)(Display*, char*), char*, char*, char*, int);
extern int initdraw(void(*)(Display*, char*), char*, char*);
extern int newwindow(char*);
extern Display* initdisplay(char*, char*, void(*)(Display*, char*));
extern int loadimage(Image*, Rectangle, uchar*, int);
extern int cloadimage(Image*, Rectangle, uchar*, int);
extern int getwindow(Display*, int);
extern int gengetwindow(Display*, char*, Image**, Screen**, int);
extern Image* readimage(Display*, int, int);
extern Image* creadimage(Display*, int, int);
extern int unloadimage(Image*, Rectangle, uchar*, int);
extern int wordsperline(Rectangle, int);
extern int writeimage(int, Image*, int);
extern Image* namedimage(Display*, char*);
extern int nameimage(Image*, char*, int);
extern Image* allocimagemix(Display*, ulong, ulong);
/*
* Colors
*/
extern void readcolmap(Display*, RGB*);
extern void writecolmap(Display*, RGB*);
extern ulong setalpha(ulong, uchar);
/*
* Windows
*/
extern Screen* allocscreen(Image*, Image*, int);
extern Image* _allocwindow(Image*, Screen*, Rectangle, int, ulong);
extern Image* allocwindow(Screen*, Rectangle, int, ulong);
extern void bottomnwindows(Image**, int);
extern void bottomwindow(Image*);
extern int freescreen(Screen*);
extern Screen* publicscreen(Display*, int, ulong);
extern void topnwindows(Image**, int);
extern void topwindow(Image*);
extern int originwindow(Image*, Point, Point);
/*
* Geometry
*/
extern Point Pt(int, int);
extern Rectangle Rect(int, int, int, int);
extern Rectangle Rpt(Point, Point);
extern Point addpt(Point, Point);
extern Point subpt(Point, Point);
extern Point divpt(Point, int);
extern Point mulpt(Point, int);
extern int eqpt(Point, Point);
extern int eqrect(Rectangle, Rectangle);
extern Rectangle insetrect(Rectangle, int);
extern Rectangle rectaddpt(Rectangle, Point);
extern Rectangle rectsubpt(Rectangle, Point);
extern Rectangle canonrect(Rectangle);
extern int rectXrect(Rectangle, Rectangle);
extern int rectinrect(Rectangle, Rectangle);
extern void combinerect(Rectangle*, Rectangle);
extern int rectclip(Rectangle*, Rectangle);
extern int ptinrect(Point, Rectangle);
extern void replclipr(Image*, int, Rectangle);
extern int drawreplxy(int, int, int); /* used to be drawsetxy */
extern Point drawrepl(Rectangle, Point);
extern int rgb2cmap(int, int, int);
extern int cmap2rgb(int);
extern int cmap2rgba(int);
extern void icossin(int, int*, int*);
extern void icossin2(int, int, int*, int*);
/*
* Graphics
*/
extern void draw(Image*, Rectangle, Image*, Image*, Point);
extern void drawop(Image*, Rectangle, Image*, Image*, Point, Drawop);
extern void gendraw(Image*, Rectangle, Image*, Point, Image*, Point);
extern void gendrawop(Image*, Rectangle, Image*, Point, Image*, Point, Drawop);
extern void line(Image*, Point, Point, int, int, int, Image*, Point);
extern void lineop(Image*, Point, Point, int, int, int, Image*, Point, Drawop);
extern void poly(Image*, Point*, int, int, int, int, Image*, Point);
extern void polyop(Image*, Point*, int, int, int, int, Image*, Point, Drawop);
extern void fillpoly(Image*, Point*, int, int, Image*, Point);
extern void fillpolyop(Image*, Point*, int, int, Image*, Point, Drawop);
extern Point string(Image*, Point, Image*, Point, Font*, char*);
extern Point stringop(Image*, Point, Image*, Point, Font*, char*, Drawop);
extern Point stringn(Image*, Point, Image*, Point, Font*, char*, int);
extern Point stringnop(Image*, Point, Image*, Point, Font*, char*, int, Drawop);
extern Point runestring(Image*, Point, Image*, Point, Font*, Rune*);
extern Point runestringop(Image*, Point, Image*, Point, Font*, Rune*, Drawop);
extern Point runestringn(Image*, Point, Image*, Point, Font*, Rune*, int);
extern Point runestringnop(Image*, Point, Image*, Point, Font*, Rune*, int, Drawop);
extern Point stringbg(Image*, Point, Image*, Point, Font*, char*, Image*, Point);
extern Point stringbgop(Image*, Point, Image*, Point, Font*, char*, Image*, Point, Drawop);
extern Point stringnbg(Image*, Point, Image*, Point, Font*, char*, int, Image*, Point);
extern Point stringnbgop(Image*, Point, Image*, Point, Font*, char*, int, Image*, Point, Drawop);
extern Point runestringbg(Image*, Point, Image*, Point, Font*, Rune*, Image*, Point);
extern Point runestringbgop(Image*, Point, Image*, Point, Font*, Rune*, Image*, Point, Drawop);
extern Point runestringnbg(Image*, Point, Image*, Point, Font*, Rune*, int, Image*, Point);
extern Point runestringnbgop(Image*, Point, Image*, Point, Font*, Rune*, int, Image*, Point, Drawop);
extern Point _string(Image*, Point, Image*, Point, Font*, char*, Rune*, int, Rectangle, Image*, Point, Drawop);
extern Point stringsubfont(Image*, Point, Image*, Subfont*, char*);
extern int bezier(Image*, Point, Point, Point, Point, int, int, int, Image*, Point);
extern int bezierop(Image*, Point, Point, Point, Point, int, int, int, Image*, Point, Drawop);
extern int bezspline(Image*, Point*, int, int, int, int, Image*, Point);
extern int bezsplineop(Image*, Point*, int, int, int, int, Image*, Point, Drawop);
extern int bezsplinepts(Point*, int, Point**);
extern int fillbezier(Image*, Point, Point, Point, Point, int, Image*, Point);
extern int fillbezierop(Image*, Point, Point, Point, Point, int, Image*, Point, Drawop);
extern int fillbezspline(Image*, Point*, int, int, Image*, Point);
extern int fillbezsplineop(Image*, Point*, int, int, Image*, Point, Drawop);
extern void ellipse(Image*, Point, int, int, int, Image*, Point);
extern void ellipseop(Image*, Point, int, int, int, Image*, Point, Drawop);
extern void fillellipse(Image*, Point, int, int, Image*, Point);
extern void fillellipseop(Image*, Point, int, int, Image*, Point, Drawop);
extern void arc(Image*, Point, int, int, int, Image*, Point, int, int);
extern void arcop(Image*, Point, int, int, int, Image*, Point, int, int, Drawop);
extern void fillarc(Image*, Point, int, int, Image*, Point, int, int);
extern void fillarcop(Image*, Point, int, int, Image*, Point, int, int, Drawop);
extern void border(Image*, Rectangle, int, Image*, Point);
extern void borderop(Image*, Rectangle, int, Image*, Point, Drawop);
/*
* Font management
*/
extern Font* openfont(Display*, char*);
extern Font* buildfont(Display*, char*, char*);
extern void freefont(Font*);
extern Font* mkfont(Subfont*, Rune);
extern int cachechars(Font*, char**, Rune**, ushort*, int, int*, char**);
extern void agefont(Font*);
extern Subfont* allocsubfont(char*, int, int, int, Fontchar*, Image*);
extern Subfont* lookupsubfont(Display*, char*);
extern void installsubfont(char*, Subfont*);
extern void uninstallsubfont(Subfont*);
extern void freesubfont(Subfont*);
extern Subfont* readsubfont(Display*, char*, int, int);
extern Subfont* readsubfonti(Display*, char*, int, Image*, int);
extern int writesubfont(int, Subfont*);
extern void _unpackinfo(Fontchar*, uchar*, int);
extern Point stringsize(Font*, char*);
extern int stringwidth(Font*, char*);
extern int stringnwidth(Font*, char*, int);
extern Point runestringsize(Font*, Rune*);
extern int runestringwidth(Font*, Rune*);
extern int runestringnwidth(Font*, Rune*, int);
extern Point strsubfontwidth(Subfont*, char*);
extern int loadchar(Font*, Rune, Cacheinfo*, int, int, char**);
extern char* subfontname(char*, char*, int);
extern Subfont* _getsubfont(Display*, char*);
extern Subfont* getdefont(Display*);
extern void lockdisplay(Display*);
extern void unlockdisplay(Display*);
extern int drawlsetrefresh(ulong, int, void*, void*);
/*
* Predefined
*/
extern uchar defontdata[];
extern int sizeofdefont;
extern Point ZP;
extern Rectangle ZR;
/*
* Set up by initdraw()
*/
extern Display *display;
extern Font *font;
/* extern Image *screen; */
extern Screen *_screen;
extern int _cursorfd;
extern int _drawdebug; /* set to 1 to see errors from flushimage */
extern void _setdrawop(Display*, Drawop);
#define BGSHORT(p) (((p)[0]<<0) | ((p)[1]<<8))
#define BGLONG(p) ((BGSHORT(p)<<0) | (BGSHORT(p+2)<<16))
#define BPSHORT(p, v) ((p)[0]=(v), (p)[1]=((v)>>8))
#define BPLONG(p, v) (BPSHORT(p, (v)), BPSHORT(p+2, (v)>>16))
/*
* Compressed image file parameters and helper routines
*/
#define NMATCH 3 /* shortest match possible */
#define NRUN (NMATCH+31) /* longest match possible */
#define NMEM 1024 /* window size */
#define NDUMP 128 /* maximum length of dump */
#define NCBLOCK 6000 /* size of compressed blocks */
extern void _twiddlecompressed(uchar*, int);
extern int _compblocksize(Rectangle, int);
/* XXX backwards helps; should go */
extern int log2[];
extern ulong drawld2chan[];
extern void drawsetdebug(int);

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#if defined(linux) || defined(IRIX) || defined(SOLARIS) || defined(OSF1) || defined(__FreeBSD__) || defined(__APPLE__)
# include "unix.h"
# ifdef __APPLE__
# define panic dt_panic
# endif
#elif defined(WINDOWS)
# include "winduhz.h"
#else
# error "Define an OS"
#endif

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#define VERSION9P "9P2000"
#define MAXWELEM 16
typedef
struct Fcall
{
uchar type;
u32int fid;
ushort tag;
u32int msize; /* Tversion, Rversion */
char *version; /* Tversion, Rversion */
ushort oldtag; /* Tflush */
char *ename; /* Rerror */
Qid qid; /* Rattach, Ropen, Rcreate */
u32int iounit; /* Ropen, Rcreate */
Qid aqid; /* Rauth */
u32int afid; /* Tauth, Tattach */
char *uname; /* Tauth, Tattach */
char *aname; /* Tauth, Tattach */
u32int perm; /* Tcreate */
char *name; /* Tcreate */
uchar mode; /* Tcreate, Topen */
u32int newfid; /* Twalk */
ushort nwname; /* Twalk */
char *wname[MAXWELEM]; /* Twalk */
ushort nwqid; /* Rwalk */
Qid wqid[MAXWELEM]; /* Rwalk */
vlong offset; /* Tread, Twrite */
u32int count; /* Tread, Twrite, Rread */
char *data; /* Twrite, Rread */
ushort nstat; /* Twstat, Rstat */
uchar *stat; /* Twstat, Rstat */
} Fcall;
#define GBIT8(p) ((p)[0])
#define GBIT16(p) ((p)[0]|((p)[1]<<8))
#define GBIT32(p) ((p)[0]|((p)[1]<<8)|((p)[2]<<16)|((p)[3]<<24))
#define GBIT64(p) ((vlong)((p)[0]|((p)[1]<<8)|((p)[2]<<16)|((p)[3]<<24)) |\
((vlong)((p)[4]|((p)[5]<<8)|((p)[6]<<16)|((p)[7]<<24)) << 32))
#define PBIT8(p,v) (p)[0]=(v)
#define PBIT16(p,v) (p)[0]=(v);(p)[1]=(v)>>8
#define PBIT32(p,v) (p)[0]=(v);(p)[1]=(v)>>8;(p)[2]=(v)>>16;(p)[3]=(v)>>24
#define PBIT64(p,v) (p)[0]=(v);(p)[1]=(v)>>8;(p)[2]=(v)>>16;(p)[3]=(v)>>24;\
(p)[4]=(v)>>32;(p)[5]=(v)>>40;(p)[6]=(v)>>48;(p)[7]=(v)>>56
#define BIT8SZ 1
#define BIT16SZ 2
#define BIT32SZ 4
#define BIT64SZ 8
#define QIDSZ (BIT8SZ+BIT32SZ+BIT64SZ)
/* STATFIXLEN includes leading 16-bit count */
/* The count, however, excludes itself; total size is BIT16SZ+count */
#define STATFIXLEN (BIT16SZ+QIDSZ+5*BIT16SZ+4*BIT32SZ+1*BIT64SZ) /* amount of fixed length data in a stat buffer */
#define NOTAG (ushort)~0U /* Dummy tag */
#define NOFID (u32int)~0U /* Dummy fid */
#define IOHDRSZ 24 /* ample room for Twrite/Rread header (iounit) */
enum
{
Tversion = 100,
Rversion,
Tauth = 102,
Rauth,
Tattach = 104,
Rattach,
Terror = 106, /* illegal */
Rerror,
Tflush = 108,
Rflush,
Twalk = 110,
Rwalk,
Topen = 112,
Ropen,
Tcreate = 114,
Rcreate,
Tread = 116,
Rread,
Twrite = 118,
Rwrite,
Tclunk = 120,
Rclunk,
Tremove = 122,
Rremove,
Tstat = 124,
Rstat,
Twstat = 126,
Rwstat,
Tmax,
};
uint convM2S(uchar*, uint, Fcall*);
uint convS2M(Fcall*, uchar*, uint);
uint sizeS2M(Fcall*);
int statcheck(uchar *abuf, uint nbuf);
uint convM2D(uchar*, uint, Dir*, char*);
uint convD2M(Dir*, uchar*, uint);
uint sizeD2M(Dir*);
int fcallfmt(Fmt*);
int dirfmt(Fmt*);
int dirmodefmt(Fmt*);
int read9pmsg(int, void*, uint);

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#pragma src "/sys/src/libdraw"
#pragma lib "libdraw.a"
typedef struct Keyboardctl Keyboardctl;
typedef struct Channel Channel;
struct Keyboardctl
{
Channel *c; /* chan(Rune)[20] */
char *file;
int consfd; /* to cons file */
int ctlfd; /* to ctl file */
int pid; /* of slave proc */
};
extern Keyboardctl* initkeyboard(char*);
extern int ctlkeyboard(Keyboardctl*, char*);
extern void closekeyboard(Keyboardctl*);
enum {
KF= 0xF000, /* Rune: beginning of private Unicode space */
Spec= 0xF800,
/* KF|1, KF|2, ..., KF|0xC is F1, F2, ..., F12 */
Khome= KF|0x0D,
Kup= KF|0x0E,
Kpgup= KF|0x0F,
Kprint= KF|0x10,
Kleft= KF|0x11,
Kright= KF|0x12,
Kdown= Spec|0x00,
Kview= Spec|0x00,
Kpgdown= KF|0x13,
Kins= KF|0x14,
Kend= KF|0x18,
Kalt= KF|0x15,
Kshift= KF|0x16,
Kctl= KF|0x17,
};

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/* avoid name conflicts */
#define accept pm_accept
#define listen pm_listen
#define sleep ksleep
#define wakeup kwakeup
#define strtod libstrtod
#define pow10 libpow10
/* conflicts on some os's */
#define encrypt libencrypt
#define decrypt libdecrypt
#define oserror liboserror
#define clone libclone
#define atexit libatexit
#define log2 liblog2
#define log liblog
#define reboot libreboot
#define srand dtsrand
#define rand dtrand
#define nrand dtnrand
#define lrand dtlrand
#define lnrand dtlnrand
#undef timeradd
#define timeradd xtimeradd
#define nil ((void*)0)
typedef unsigned char p9_uchar;
typedef unsigned int p9_uint;
typedef unsigned int p9_ulong;
typedef int p9_long;
typedef signed char p9_schar;
typedef unsigned short p9_ushort;
typedef unsigned short Rune;
typedef unsigned int p9_u32int;
typedef p9_u32int mpdigit;
/* make sure we don't conflict with predefined types */
#define schar p9_schar
#define uchar p9_uchar
#define ushort p9_ushort
#define uint p9_uint
#define u32int p9_u32int
/* #define long int rather than p9_long so that "unsigned long" is valid */
#define long int
#define ulong p9_ulong
#define vlong p9_vlong
#define uvlong p9_uvlong
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
#define USED(x) if(x);else
#define SET(x)
enum
{
UTFmax = 3, /* maximum bytes per rune */
Runesync = 0x80, /* cannot represent part of a UTF sequence (<) */
Runeself = 0x80, /* rune and UTF sequences are the same (<) */
Runeerror = 0x80 /* decoding error in UTF */
};
/*
* new rune routines
*/
extern int runetochar(char*, Rune*);
extern int chartorune(Rune*, char*);
extern int runelen(long);
extern int fullrune(char*, int);
extern int wstrtoutf(char*, Rune*, int);
extern int wstrutflen(Rune*);
/*
* rune routines from converted str routines
*/
extern long utflen(char*);
extern char* utfrune(char*, long);
extern char* utfrrune(char*, long);
/*
* Syscall data structures
*/
#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 OCEXEC 32 /* or'ed in, close on exec */
#define ORCLOSE 64 /* or'ed in, remove on close */
#define OEXCL 0x1000 /* or'ed in, exclusive create */
#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 */
#define ERRMAX 128 /* max length of error string */
#define KNAMELEN 28 /* max length of name held in kernel */
/* 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 QTFILE 0x00 /* 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 files */
#define DMREAD 0x4 /* mode bit for read permission */
#define DMWRITE 0x2 /* mode bit for write permission */
#define DMEXEC 0x1 /* mode bit for execute permission */
typedef struct Lock
{
long key;
} Lock;
typedef struct QLock
{
Lock lk;
struct Proc *hold;
struct Proc *first;
struct Proc *last;
} QLock;
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 */
} Dir;
typedef
struct Waitmsg
{
int pid; /* of loved one */
ulong time[3]; /* of loved one & descendants */
char *msg;
} Waitmsg;
/*
* print routines
*/
typedef struct Fmt Fmt;
struct Fmt{
uchar runes; /* output buffer is runes or chars? */
void *start; /* of buffer */
void *to; /* current place in the buffer */
void *stop; /* end of the buffer; overwritten if flush fails */
int (*flush)(Fmt *); /* called when to == stop */
void *farg; /* to make flush a closure */
int nfmt; /* num chars formatted so far */
va_list args; /* args passed to dofmt */
int r; /* % format Rune */
int width;
int prec;
ulong flags;
};
enum{
FmtWidth = 1,
FmtLeft = FmtWidth << 1,
FmtPrec = FmtLeft << 1,
FmtSharp = FmtPrec << 1,
FmtSpace = FmtSharp << 1,
FmtSign = FmtSpace << 1,
FmtZero = FmtSign << 1,
FmtUnsigned = FmtZero << 1,
FmtShort = FmtUnsigned << 1,
FmtLong = FmtShort << 1,
FmtVLong = FmtLong << 1,
FmtComma = FmtVLong << 1,
FmtByte = FmtComma << 1,
FmtFlag = FmtByte << 1
};
extern int print(char*, ...);
extern char* seprint(char*, char*, char*, ...);
extern char* vseprint(char*, char*, char*, va_list);
extern int snprint(char*, int, char*, ...);
extern int vsnprint(char*, int, char*, va_list);
extern char* smprint(char*, ...);
extern char* vsmprint(char*, va_list);
extern int sprint(char*, char*, ...);
extern int fprint(int, char*, ...);
extern int vfprint(int, char*, va_list);
extern int (*doquote)(int);
extern int runesprint(Rune*, char*, ...);
extern int runesnprint(Rune*, int, char*, ...);
extern int runevsnprint(Rune*, int, char*, va_list);
extern Rune* runeseprint(Rune*, Rune*, char*, ...);
extern Rune* runevseprint(Rune*, Rune*, char*, va_list);
extern Rune* runesmprint(char*, ...);
extern Rune* runevsmprint(char*, va_list);
extern int fmtfdinit(Fmt*, int, char*, int);
extern int fmtfdflush(Fmt*);
extern int fmtstrinit(Fmt*);
extern int fmtinstall(int, int (*)(Fmt*));
extern char* fmtstrflush(Fmt*);
extern int runefmtstrinit(Fmt*);
extern Rune* runefmtstrflush(Fmt*);
extern void* mallocz(ulong, int);
extern void srand(long);
extern int rand(void);
extern int nrand(int);
extern long lrand(void);
extern long lnrand(long);
extern double frand(void);

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#include "lib.h"
#include "user.h"

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#ifndef _MPINT
typedef struct mpint mpint;
#endif
/////////////////////////////////////////////////////////
// AES definitions
/////////////////////////////////////////////////////////
enum
{
AESbsize= 16,
AESmaxkey= 32,
AESmaxrounds= 14
};
typedef struct AESstate AESstate;
struct AESstate
{
ulong setup;
int rounds;
int keybytes;
uchar key[AESmaxkey]; /* unexpanded key */
u32int ekey[4*(AESmaxrounds + 1)]; /* encryption key */
u32int dkey[4*(AESmaxrounds + 1)]; /* decryption key */
uchar ivec[AESbsize]; /* initialization vector */
};
void setupAESstate(AESstate *s, uchar key[], int keybytes, uchar *ivec);
void aesCBCencrypt(uchar *p, int len, AESstate *s);
void aesCBCdecrypt(uchar *p, int len, AESstate *s);
/////////////////////////////////////////////////////////
// Blowfish Definitions
/////////////////////////////////////////////////////////
enum
{
BFbsize = 8,
BFrounds = 16
};
// 16-round Blowfish
typedef struct BFstate BFstate;
struct BFstate
{
ulong setup;
uchar key[56];
uchar ivec[8];
u32int pbox[BFrounds+2];
u32int sbox[1024];
};
void setupBFstate(BFstate *s, uchar key[], int keybytes, uchar *ivec);
void bfCBCencrypt(uchar*, int, BFstate*);
void bfCBCdecrypt(uchar*, int, BFstate*);
void bfECBencrypt(uchar*, int, BFstate*);
void bfECBdecrypt(uchar*, int, BFstate*);
/////////////////////////////////////////////////////////
// DES definitions
/////////////////////////////////////////////////////////
enum
{
DESbsize= 8
};
// single des
typedef struct DESstate DESstate;
struct DESstate
{
ulong setup;
uchar key[8]; /* unexpanded key */
ulong expanded[32]; /* expanded key */
uchar ivec[8]; /* initialization vector */
};
void setupDESstate(DESstate *s, uchar key[8], uchar *ivec);
void des_key_setup(uchar[8], ulong[32]);
void block_cipher(ulong*, uchar*, int);
void desCBCencrypt(uchar*, int, DESstate*);
void desCBCdecrypt(uchar*, int, DESstate*);
void desECBencrypt(uchar*, int, DESstate*);
void desECBdecrypt(uchar*, int, DESstate*);
// for backward compatibility with 7 byte DES key format
void des56to64(uchar *k56, uchar *k64);
void des64to56(uchar *k64, uchar *k56);
void key_setup(uchar[7], ulong[32]);
// triple des encrypt/decrypt orderings
enum {
DES3E= 0,
DES3D= 1,
DES3EEE= 0,
DES3EDE= 2,
DES3DED= 5,
DES3DDD= 7
};
typedef struct DES3state DES3state;
struct DES3state
{
ulong setup;
uchar key[3][8]; /* unexpanded key */
ulong expanded[3][32]; /* expanded key */
uchar ivec[8]; /* initialization vector */
};
void setupDES3state(DES3state *s, uchar key[3][8], uchar *ivec);
void triple_block_cipher(ulong keys[3][32], uchar*, int);
void des3CBCencrypt(uchar*, int, DES3state*);
void des3CBCdecrypt(uchar*, int, DES3state*);
void des3ECBencrypt(uchar*, int, DES3state*);
void des3ECBdecrypt(uchar*, int, DES3state*);
/////////////////////////////////////////////////////////
// digests
/////////////////////////////////////////////////////////
enum
{
SHA1dlen= 20, /* SHA digest length */
MD4dlen= 16, /* MD4 digest length */
MD5dlen= 16 /* MD5 digest length */
};
typedef struct DigestState DigestState;
struct DigestState
{
ulong len;
u32int state[5];
uchar buf[128];
int blen;
char malloced;
char seeded;
};
typedef struct DigestState SHAstate; /* obsolete name */
typedef struct DigestState SHA1state;
typedef struct DigestState MD5state;
typedef struct DigestState MD4state;
DigestState* md4(uchar*, ulong, uchar*, DigestState*);
DigestState* md5(uchar*, ulong, uchar*, DigestState*);
DigestState* sha1(uchar*, ulong, uchar*, DigestState*);
DigestState* hmac_md5(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);
DigestState* hmac_sha1(uchar*, ulong, uchar*, ulong, uchar*, DigestState*);
char* sha1pickle(SHA1state*);
SHA1state* sha1unpickle(char*);
/////////////////////////////////////////////////////////
// random number generation
/////////////////////////////////////////////////////////
void genrandom(uchar *buf, int nbytes);
void prng(uchar *buf, int nbytes);
ulong fastrand(void);
ulong nfastrand(ulong);
/////////////////////////////////////////////////////////
// primes
/////////////////////////////////////////////////////////
void genprime(mpint *p, int n, int accuracy); // generate an n bit probable prime
void gensafeprime(mpint *p, mpint *alpha, int n, int accuracy); // prime and generator
void genstrongprime(mpint *p, int n, int accuracy); // generate an n bit strong prime
void DSAprimes(mpint *q, mpint *p, uchar seed[SHA1dlen]);
int probably_prime(mpint *n, int nrep); // miller-rabin test
int smallprimetest(mpint *p); // returns -1 if not prime, 0 otherwise
/////////////////////////////////////////////////////////
// rc4
/////////////////////////////////////////////////////////
typedef struct RC4state RC4state;
struct RC4state
{
uchar state[256];
uchar x;
uchar y;
};
void setupRC4state(RC4state*, uchar*, int);
void rc4(RC4state*, uchar*, int);
void rc4skip(RC4state*, int);
void rc4back(RC4state*, int);
/////////////////////////////////////////////////////////
// rsa
/////////////////////////////////////////////////////////
typedef struct RSApub RSApub;
typedef struct RSApriv RSApriv;
// public/encryption key
struct RSApub
{
mpint *n; // modulus
mpint *ek; // exp (encryption key)
};
// private/decryption key
struct RSApriv
{
RSApub pub;
mpint *dk; // exp (decryption key)
// precomputed values to help with chinese remainder theorem calc
mpint *p;
mpint *q;
mpint *kp; // dk mod p-1
mpint *kq; // dk mod q-1
mpint *c2; // (inv p) mod q
};
RSApriv* rsagen(int nlen, int elen, int rounds);
RSApriv* rsafill(mpint *n, mpint *e, mpint *d, mpint *p, mpint *q);
mpint* rsaencrypt(RSApub *k, mpint *in, mpint *out);
mpint* rsadecrypt(RSApriv *k, mpint *in, mpint *out);
RSApub* rsapuballoc(void);
void rsapubfree(RSApub*);
RSApriv* rsaprivalloc(void);
void rsaprivfree(RSApriv*);
RSApub* rsaprivtopub(RSApriv*);
RSApub* X509toRSApub(uchar*, int, char*, int);
RSApriv* asn1toRSApriv(uchar*, int);
void asn1dump(uchar *der, int len);
uchar* decodepem(char *s, char *type, int *len);
uchar* X509gen(RSApriv *priv, char *subj, ulong valid[2], int *certlen);
uchar* X509req(RSApriv *priv, char *subj, int *certlen);
char* X509verify(uchar *cert, int ncert, RSApub *pk);
void X509dump(uchar *cert, int ncert);
/////////////////////////////////////////////////////////
// elgamal
/////////////////////////////////////////////////////////
typedef struct EGpub EGpub;
typedef struct EGpriv EGpriv;
typedef struct EGsig EGsig;
// public/encryption key
struct EGpub
{
mpint *p; // modulus
mpint *alpha; // generator
mpint *key; // (encryption key) alpha**secret mod p
};
// private/decryption key
struct EGpriv
{
EGpub pub;
mpint *secret; // (decryption key)
};
// signature
struct EGsig
{
mpint *r, *s;
};
EGpriv* eggen(int nlen, int rounds);
mpint* egencrypt(EGpub *k, mpint *in, mpint *out);
mpint* egdecrypt(EGpriv *k, mpint *in, mpint *out);
EGsig* egsign(EGpriv *k, mpint *m);
int egverify(EGpub *k, EGsig *sig, mpint *m);
EGpub* egpuballoc(void);
void egpubfree(EGpub*);
EGpriv* egprivalloc(void);
void egprivfree(EGpriv*);
EGsig* egsigalloc(void);
void egsigfree(EGsig*);
EGpub* egprivtopub(EGpriv*);
/////////////////////////////////////////////////////////
// dsa
/////////////////////////////////////////////////////////
typedef struct DSApub DSApub;
typedef struct DSApriv DSApriv;
typedef struct DSAsig DSAsig;
// public/encryption key
struct DSApub
{
mpint *p; // modulus
mpint *q; // group order, q divides p-1
mpint *alpha; // group generator
mpint *key; // (encryption key) alpha**secret mod p
};
// private/decryption key
struct DSApriv
{
DSApub pub;
mpint *secret; // (decryption key)
};
// signature
struct DSAsig
{
mpint *r, *s;
};
DSApriv* dsagen(DSApub *opub);
DSAsig* dsasign(DSApriv *k, mpint *m);
int dsaverify(DSApub *k, DSAsig *sig, mpint *m);
DSApub* dsapuballoc(void);
void dsapubfree(DSApub*);
DSApriv* dsaprivalloc(void);
void dsaprivfree(DSApriv*);
DSAsig* dsasigalloc(void);
void dsasigfree(DSAsig*);
DSApub* dsaprivtopub(DSApriv*);
/////////////////////////////////////////////////////////
// TLS
/////////////////////////////////////////////////////////
typedef struct Thumbprint{
struct Thumbprint *next;
uchar sha1[SHA1dlen];
} Thumbprint;
typedef struct TLSconn{
char dir[40]; // connection directory
uchar *cert; // certificate (local on input, remote on output)
uchar *sessionID;
int certlen, sessionIDlen;
int (*trace)(char*fmt, ...);
} TLSconn;
// tlshand.c
extern int tlsClient(int fd, TLSconn *c);
extern int tlsServer(int fd, TLSconn *c);
// thumb.c
extern Thumbprint* initThumbprints(char *ok, char *crl);
extern void freeThumbprints(Thumbprint *ok);
extern int okThumbprint(uchar *sha1, Thumbprint *ok);
// readcert.c
extern uchar *readcert(char *filename, int *pcertlen);

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#pragma src "/sys/src/libmemdraw"
#pragma lib "libmemdraw.a"
typedef struct Memimage Memimage;
typedef struct Memdata Memdata;
typedef struct Memsubfont Memsubfont;
typedef struct Memlayer Memlayer;
typedef struct Memcmap Memcmap;
typedef struct Memdrawparam Memdrawparam;
/*
* Memdata is allocated from main pool, but .data from the image pool.
* Memdata is allocated separately to permit patching its pointer after
* compaction when windows share the image data.
* The first word of data is a back pointer to the Memdata, to find
* The word to patch.
*/
struct Memdata
{
ulong *base; /* allocated data pointer */
uchar *bdata; /* pointer to first byte of actual data; word-aligned */
int ref; /* number of Memimages using this data */
void* imref;
int allocd; /* is this malloc'd? */
};
enum {
Frepl = 1<<0, /* is replicated */
Fsimple = 1<<1, /* is 1x1 */
Fgrey = 1<<2, /* is grey */
Falpha = 1<<3, /* has explicit alpha */
Fcmap = 1<<4, /* has cmap channel */
Fbytes = 1<<5, /* has only 8-bit channels */
};
struct Memimage
{
Rectangle r; /* rectangle in data area, local coords */
Rectangle clipr; /* clipping region */
int depth; /* number of bits of storage per pixel */
int nchan; /* number of channels */
ulong chan; /* channel descriptions */
Memcmap *cmap;
Memdata *data; /* pointer to data; shared by windows in this image */
int zero; /* data->bdata+zero==&byte containing (0,0) */
ulong width; /* width in words of a single scan line */
Memlayer *layer; /* nil if not a layer*/
ulong flags;
int shift[NChan];
int mask[NChan];
int nbits[NChan];
void *X;
};
struct Memcmap
{
uchar cmap2rgb[3*256];
uchar rgb2cmap[16*16*16];
};
/*
* Subfonts
*
* given char c, Subfont *f, Fontchar *i, and Point p, one says
* i = f->info+c;
* draw(b, Rect(p.x+i->left, p.y+i->top,
* p.x+i->left+((i+1)->x-i->x), p.y+i->bottom),
* color, f->bits, Pt(i->x, i->top));
* p.x += i->width;
* to draw characters in the specified color (itself a Memimage) in Memimage b.
*/
struct Memsubfont
{
char *name;
short n; /* number of chars in font */
uchar height; /* height of bitmap */
char ascent; /* top of bitmap to baseline */
Fontchar *info; /* n+1 character descriptors */
Memimage *bits; /* of font */
};
/*
* Encapsulated parameters and information for sub-draw routines.
*/
enum {
Simplesrc=1<<0,
Simplemask=1<<1,
Replsrc=1<<2,
Replmask=1<<3,
Fullmask=1<<4,
};
struct Memdrawparam
{
Memimage *dst;
Rectangle r;
Memimage *src;
Rectangle sr;
Memimage *mask;
Rectangle mr;
int op;
ulong state;
ulong mval; /* if Simplemask, the mask pixel in mask format */
ulong mrgba; /* mval in rgba */
ulong sval; /* if Simplesrc, the source pixel in src format */
ulong srgba; /* sval in rgba */
ulong sdval; /* sval in dst format */
};
/*
* Memimage management
*/
extern Memimage* allocmemimage(Rectangle, ulong);
extern Memimage* _allocmemimage(Rectangle, ulong);
extern Memimage* allocmemimaged(Rectangle, ulong, Memdata*, void*);
extern Memimage* readmemimage(int);
extern Memimage* creadmemimage(int);
extern int writememimage(int, Memimage*);
extern void freememimage(Memimage*);
extern int _loadmemimage(Memimage*, Rectangle, uchar*, int);
extern int _cloadmemimage(Memimage*, Rectangle, uchar*, int);
extern int _unloadmemimage(Memimage*, Rectangle, uchar*, int);
extern int loadmemimage(Memimage*, Rectangle, uchar*, int);
extern int cloadmemimage(Memimage*, Rectangle, uchar*, int);
extern int unloadmemimage(Memimage*, Rectangle, uchar*, int);
extern ulong* wordaddr(Memimage*, Point);
extern uchar* byteaddr(Memimage*, Point);
extern int drawclip(Memimage*, Rectangle*, Memimage*, Point*, Memimage*, Point*, Rectangle*, Rectangle*);
extern void memfillcolor(Memimage*, ulong);
extern int memsetchan(Memimage*, ulong);
/*
* Graphics
*/
extern void memdraw(Memimage*, Rectangle, Memimage*, Point, Memimage*, Point, int);
extern void memline(Memimage*, Point, Point, int, int, int, Memimage*, Point, int);
extern void mempoly(Memimage*, Point*, int, int, int, int, Memimage*, Point, int);
extern void memfillpoly(Memimage*, Point*, int, int, Memimage*, Point, int);
extern void _memfillpolysc(Memimage*, Point*, int, int, Memimage*, Point, int, int, int, int);
extern Memdrawparam* _memimagedrawsetup(Memimage*, Rectangle, Memimage*, Point, Memimage*, Point, int);
extern void _memimagedraw(Memdrawparam*);
extern void memimagedraw(Memimage*, Rectangle, Memimage*, Point, Memimage*, Point, int);
extern int hwdraw(Memdrawparam*);
extern void memimageline(Memimage*, Point, Point, int, int, int, Memimage*, Point, int);
extern void _memimageline(Memimage*, Point, Point, int, int, int, Memimage*, Point, Rectangle, int);
extern Point memimagestring(Memimage*, Point, Memimage*, Point, Memsubfont*, char*);
extern void memellipse(Memimage*, Point, int, int, int, Memimage*, Point, int);
extern void memarc(Memimage*, Point, int, int, int, Memimage*, Point, int, int, int);
extern Rectangle memlinebbox(Point, Point, int, int, int);
extern int memlineendsize(int);
extern void _memmkcmap(void);
extern void memimageinit(void);
/*
* Subfont management
*/
extern Memsubfont* allocmemsubfont(char*, int, int, int, Fontchar*, Memimage*);
extern Memsubfont* openmemsubfont(char*);
extern void freememsubfont(Memsubfont*);
extern Point memsubfontwidth(Memsubfont*, char*);
extern Memsubfont* getmemdefont(void);
/*
* Predefined
*/
extern Memimage* memwhite;
extern Memimage* memblack;
extern Memimage* memopaque;
extern Memimage* memtransparent;
extern Memcmap *memdefcmap;
/*
* Kernel interface
*/
void memimagemove(void*, void*);
/*
* Kernel cruft
*/
extern void rdb(void);
extern int iprint(char*, ...);
#pragma varargck argpos iprint 1
extern int drawdebug;
/*
* doprint interface: numbconv bit strings
*/
#pragma varargck type "llb" vlong
#pragma varargck type "llb" uvlong
#pragma varargck type "lb" long
#pragma varargck type "lb" ulong
#pragma varargck type "b" int
#pragma varargck type "b" uint

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#pragma src "/sys/src/libmemlayer"
#pragma lib "libmemlayer.a"
typedef struct Memscreen Memscreen;
typedef void (*Refreshfn)(Memimage*, Rectangle, void*);
struct Memscreen
{
Memimage *frontmost; /* frontmost layer on screen */
Memimage *rearmost; /* rearmost layer on screen */
Memimage *image; /* upon which all layers are drawn */
Memimage *fill; /* if non-zero, picture to use when repainting */
};
struct Memlayer
{
Rectangle screenr; /* true position of layer on screen */
Point delta; /* add delta to go from image coords to screen */
Memscreen *screen; /* screen this layer belongs to */
Memimage *front; /* window in front of this one */
Memimage *rear; /* window behind this one*/
int clear; /* layer is fully visible */
Memimage *save; /* save area for obscured parts */
Refreshfn refreshfn; /* function to call to refresh obscured parts if save==nil */
void *refreshptr; /* argument to refreshfn */
};
/*
* These functions accept local coordinates
*/
int memload(Memimage*, Rectangle, uchar*, int, int);
int memunload(Memimage*, Rectangle, uchar*, int);
/*
* All these functions accept screen coordinates, not local ones.
*/
void _memlayerop(void (*fn)(Memimage*, Rectangle, Rectangle, void*, int), Memimage*, Rectangle, Rectangle, void*);
Memimage* memlalloc(Memscreen*, Rectangle, Refreshfn, void*, ulong);
void memldelete(Memimage*);
void memlfree(Memimage*);
void memltofront(Memimage*);
void memltofrontn(Memimage**, int);
void _memltofrontfill(Memimage*, int);
void memltorear(Memimage*);
void memltorearn(Memimage**, int);
int memlsetrefresh(Memimage*, Refreshfn, void*);
void memlhide(Memimage*, Rectangle);
void memlexpose(Memimage*, Rectangle);
void _memlsetclear(Memscreen*);
int memlorigin(Memimage*, Point, Point);
void memlnorefresh(Memimage*, Rectangle, void*);

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#define _MPINT 1
// the code assumes mpdigit to be at least an int
// mpdigit must be an atomic type. mpdigit is defined
// in the architecture specific u.h
typedef struct mpint mpint;
struct mpint
{
int sign; // +1 or -1
int size; // allocated digits
int top; // significant digits
mpdigit *p;
char flags;
};
enum
{
MPstatic= 0x01,
Dbytes= sizeof(mpdigit), // bytes per digit
Dbits= Dbytes*8 // bits per digit
};
// allocation
void mpsetminbits(int n); // newly created mpint's get at least n bits
mpint* mpnew(int n); // create a new mpint with at least n bits
void mpfree(mpint *b);
void mpbits(mpint *b, int n); // ensure that b has at least n bits
void mpnorm(mpint *b); // dump leading zeros
mpint* mpcopy(mpint *b);
void mpassign(mpint *old, mpint *new);
// random bits
mpint* mprand(int bits, void (*gen)(uchar*, int), mpint *b);
// conversion
mpint* strtomp(char*, char**, int, mpint*); // ascii
int mpfmt(Fmt*);
char* mptoa(mpint*, int, char*, int);
mpint* letomp(uchar*, uint, mpint*); // byte array, little-endian
int mptole(mpint*, uchar*, uint, uchar**);
mpint* betomp(uchar*, uint, mpint*); // byte array, little-endian
int mptobe(mpint*, uchar*, uint, uchar**);
uint mptoui(mpint*); // unsigned int
mpint* uitomp(uint, mpint*);
int mptoi(mpint*); // int
mpint* itomp(int, mpint*);
uvlong mptouv(mpint*); // unsigned vlong
mpint* uvtomp(uvlong, mpint*);
vlong mptov(mpint*); // vlong
mpint* vtomp(vlong, mpint*);
// divide 2 digits by one
void mpdigdiv(mpdigit *dividend, mpdigit divisor, mpdigit *quotient);
// in the following, the result mpint may be
// the same as one of the inputs.
void mpadd(mpint *b1, mpint *b2, mpint *sum); // sum = b1+b2
void mpsub(mpint *b1, mpint *b2, mpint *diff); // diff = b1-b2
void mpleft(mpint *b, int shift, mpint *res); // res = b<<shift
void mpright(mpint *b, int shift, mpint *res); // res = b>>shift
void mpmul(mpint *b1, mpint *b2, mpint *prod); // prod = b1*b2
void mpexp(mpint *b, mpint *e, mpint *m, mpint *res); // res = b**e mod m
void mpmod(mpint *b, mpint *m, mpint *remainder); // remainder = b mod m
// quotient = dividend/divisor, remainder = dividend % divisor
void mpdiv(mpint *dividend, mpint *divisor, mpint *quotient, mpint *remainder);
// return neg, 0, pos as b1-b2 is neg, 0, pos
int mpcmp(mpint *b1, mpint *b2);
// extended gcd return d, x, and y, s.t. d = gcd(a,b) and ax+by = d
void mpextendedgcd(mpint *a, mpint *b, mpint *d, mpint *x, mpint *y);
// res = b**-1 mod m
void mpinvert(mpint *b, mpint *m, mpint *res);
// bit counting
int mpsignif(mpint*); // number of sigificant bits in mantissa
int mplowbits0(mpint*); // k, where n = 2**k * q for odd q
// well known constants
extern mpint *mpzero, *mpone, *mptwo;
// sum[0:alen] = a[0:alen-1] + b[0:blen-1]
// prereq: alen >= blen, sum has room for alen+1 digits
void mpvecadd(mpdigit *a, int alen, mpdigit *b, int blen, mpdigit *sum);
// diff[0:alen-1] = a[0:alen-1] - b[0:blen-1]
// prereq: alen >= blen, diff has room for alen digits
void mpvecsub(mpdigit *a, int alen, mpdigit *b, int blen, mpdigit *diff);
// p[0:n] += m * b[0:n-1]
// prereq: p has room for n+1 digits
void mpvecdigmuladd(mpdigit *b, int n, mpdigit m, mpdigit *p);
// p[0:n] -= m * b[0:n-1]
// prereq: p has room for n+1 digits
int mpvecdigmulsub(mpdigit *b, int n, mpdigit m, mpdigit *p);
// p[0:alen*blen-1] = a[0:alen-1] * b[0:blen-1]
// prereq: alen >= blen, p has room for m*n digits
void mpvecmul(mpdigit *a, int alen, mpdigit *b, int blen, mpdigit *p);
// sign of a - b or zero if the same
int mpveccmp(mpdigit *a, int alen, mpdigit *b, int blen);
// divide the 2 digit dividend by the one digit divisor and stick in quotient
// we assume that the result is one digit - overflow is all 1's
void mpdigdiv(mpdigit *dividend, mpdigit divisor, mpdigit *quotient);
// playing with magnitudes
int mpmagcmp(mpint *b1, mpint *b2);
void mpmagadd(mpint *b1, mpint *b2, mpint *sum); // sum = b1+b2
void mpmagsub(mpint *b1, mpint *b2, mpint *sum); // sum = b1+b2
// chinese remainder theorem
typedef struct CRTpre CRTpre; // precomputed values for converting
// twixt residues and mpint
typedef struct CRTres CRTres; // residue form of an mpint
struct CRTres
{
int n; // number of residues
mpint *r[1]; // residues
};
CRTpre* crtpre(int, mpint**); // precompute conversion values
CRTres* crtin(CRTpre*, mpint*); // convert mpint to residues
void crtout(CRTpre*, CRTres*, mpint*); // convert residues to mpint
void crtprefree(CRTpre*);
void crtresfree(CRTres*);

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#include "dtos.h"
/* avoid name conflicts */
#undef accept
#undef listen
/* sys calls */
#undef bind
#undef chdir
#undef close
#undef create
#undef dup
#undef export
#undef fstat
#undef fwstat
#undef mount
#undef open
#undef start
#undef read
#undef remove
#undef seek
#undef stat
#undef write
#undef wstat
#undef unmount
#undef pipe

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <fcntl.h>
#include <setjmp.h>
#include <time.h>
#include <assert.h>
#include <unistd.h>
#include <stdarg.h>
typedef long long p9_vlong;
typedef unsigned long long p9_uvlong;

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/* sys calls */
#define bind sysbind
#define chdir syschdir
#define close sysclose
#define create syscreate
#define dup sysdup
#define export sysexport
#define fstat sysfstat
#define fwstat sysfwstat
#define mount sysmount
#define open sysopen
#define read sysread
#define remove sysremove
#define seek sysseek
#define stat sysstat
#define write syswrite
#define wstat syswstat
#define unmount sysunmount
#define pipe syspipe
#define rendezvous sysrendezvous
#define getpid sysgetpid
#define time systime
#define nsec sysnsec
#define pread syspread
#define pwrite syspwrite
extern int bind(char*, char*, int);
extern int chdir(char*);
extern int close(int);
extern int create(char*, int, ulong);
extern int dup(int, int);
extern int export(int);
extern int fstat(int, uchar*, int);
extern int fwstat(int, uchar*, int);
extern int mount(int, int, char*, int, char*);
extern int unmount(char*, char*);
extern int open(char*, int);
extern int pipe(int*);
extern long read(int, void*, long);
extern long readn(int, void*, long);
extern int remove(char*);
extern vlong seek(int, vlong, int);
extern int stat(char*, uchar*, int);
extern long write(int, void*, long);
extern int wstat(char*, uchar*, int);
extern Dir *dirstat(char*);
extern Dir *dirfstat(int);
extern int dirwstat(char*, Dir*);
extern int dirfwstat(int, Dir*);
extern long dirread(int, Dir*, long);
/*
* network dialing and authentication
*/
#define NETPATHLEN 40
extern int accept(int, char*);
extern int announce(char*, char*);
extern int dial(char*, char*, char*, int*);
extern int hangup(int);
extern int listen(char*, char*);
extern char *netmkaddr(char*, char*, char*);
extern int reject(int, char*, char*);
extern char* argv0;

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#include <stdio.h>
void
main(void)
{
}