/*
*/
+#include <errno.h>
+
#include "hbytes.h"
#include "tables.h"
-int staticerr(Tcl_Interp *ip, const char *m) {
+int staticerr(Tcl_Interp *ip, const char *m, const char *ec) {
Tcl_SetResult(ip, (char*)m, TCL_STATIC);
+ if (ec) Tcl_SetObjErrorCode(ip, Tcl_NewStringObj(ec,-1));
+ return TCL_ERROR;
+}
+
+int posixerr(Tcl_Interp *ip, int errnoval, const char *m) {
+ const char *em;
+
+ Tcl_ResetResult(ip);
+ errno= errnoval;
+ em= Tcl_PosixError(ip);
+ Tcl_AppendResult(ip, m, ": ", em, (char*)0);
return TCL_ERROR;
}
}
int do_hbytes_rep_info(ClientData cd, Tcl_Interp *ip,
- HBytes_Value v, Tcl_Obj **result) {
+ Tcl_Obj *obj, Tcl_Obj **result) {
const char *tn;
- int nums[3], i;
+ int nums[3], i, lnl;
Tcl_Obj *objl[4];
- memset(nums,0,sizeof(nums));
- nums[1]= hbytes_len(&v);
+ if (obj->typePtr == &hbytes_type) {
+ HBytes_Value *v= OBJ_HBYTES(obj);
+ memset(nums,0,sizeof(nums));
+ nums[1]= hbytes_len(v);
- if (HBYTES_ISEMPTY(&v)) tn= "empty";
- else if (HBYTES_ISSENTINEL(&v)) tn= "sentinel!";
- else if (HBYTES_ISSIMPLE(&v)) tn= "simple";
- else {
- HBytes_ComplexValue *cx= v.begin_complex;
- tn= "complex";
- nums[0]= cx->prespace;
- nums[2]= cx->avail - cx->len;
+ if (HBYTES_ISEMPTY(v)) tn= "empty";
+ else if (HBYTES_ISSENTINEL(v)) tn= "sentinel!";
+ else if (HBYTES_ISSIMPLE(v)) tn= "simple";
+ else {
+ HBytes_ComplexValue *cx= v->begin_complex;
+ tn= "complex";
+ nums[0]= cx->prespace;
+ nums[2]= cx->avail - cx->len;
+ }
+ lnl= 3;
+ } else {
+ tn= "other";
+ lnl= 0;
}
objl[0]= Tcl_NewStringObj((char*)tn,-1);
- for (i=0; i<3; i++) objl[i+1]= Tcl_NewIntObj(nums[i]);
- *result= Tcl_NewListObj(4,objl);
+ for (i=0; i<lnl; i++) objl[i+1]= Tcl_NewIntObj(nums[i]);
+ *result= Tcl_NewListObj(lnl+1,objl);
+
return TCL_OK;
}
static void hbytes_t_dup(Tcl_Obj *src, Tcl_Obj *dup) {
- objfreeir(dup);
hbytes_array(OBJ_HBYTES(dup),
hbytes_data(OBJ_HBYTES(src)),
hbytes_len(OBJ_HBYTES(src)));
+ dup->typePtr= &hbytes_type;
}
static void hbytes_t_free(Tcl_Obj *o) {
hbytes_free(OBJ_HBYTES(o));
}
-static void hbytes_t_ustr(Tcl_Obj *o) {
- int l;
+void obj_updatestr_array_prefix(Tcl_Obj *o, const Byte *byte,
+ int l, const char *prefix) {
char *str;
- const Byte *byte;
+ int pl;
+
+ pl= strlen(prefix);
+ o->length= l*2+pl;
+ str= o->bytes= TALLOC(o->length+1);
+
+ memcpy(str,prefix,pl);
+ str += pl;
- byte= hbytes_data(OBJ_HBYTES(o));
- l= hbytes_len(OBJ_HBYTES(o));
- str= o->bytes= TALLOC(l*2+1);
- o->length= l*2;
while (l>0) {
sprintf(str,"%02x",*byte);
str+=2; byte++; l--;
*str= 0;
}
+void obj_updatestr_array(Tcl_Obj *o, const Byte *byte, int l) {
+ obj_updatestr_array_prefix(o,byte,l,"");
+}
+
+void obj_updatestr_vstringls(Tcl_Obj *o, ...) {
+ va_list al;
+ char *p;
+ const char *part;
+ int l, pl;
+
+ va_start(al,o);
+ for (l=0; (part= va_arg(al, const char*)); )
+ l+= va_arg(al, int);
+ va_end(al);
+
+ o->length= l;
+ o->bytes= TALLOC(l+1);
+
+ va_start(al,o);
+ for (p= o->bytes; (part= va_arg(al, const char*)); p += pl) {
+ pl= va_arg(al, int);
+ memcpy(p, part, pl);
+ }
+ va_end(al);
+
+ *p= 0;
+}
+
+void obj_updatestr_string(Tcl_Obj *o, const char *str) {
+ obj_updatestr_vstringls(o, str, strlen(str), (char*)0);
+}
+
+static void hbytes_t_ustr(Tcl_Obj *o) {
+ obj_updatestr_array(o,
+ hbytes_data(OBJ_HBYTES(o)),
+ hbytes_len(OBJ_HBYTES(o)));
+}
+
static int hbytes_t_sfa(Tcl_Interp *ip, Tcl_Obj *o) {
char *str, *ep, *os;
Byte *startbytes, *bytes;
int l;
char cbuf[3];
- os= str= Tcl_GetStringFromObj(o,&l); assert(str);
- objfreeir(o);
+ if (o->typePtr == &ulong_type) {
+ uint32_t ul;
- if (l & 1) return staticerr(ip, "hbytes: conversion from hex:"
- " odd length in hex");
+ ul= htonl(*(const uint32_t*)&o->internalRep.longValue);
+ hbytes_array(OBJ_HBYTES(o), (const Byte*)&ul, 4);
- startbytes= bytes= hbytes_arrayspace(OBJ_HBYTES(o), l/2);
+ } else {
+
+ os= str= Tcl_GetStringFromObj(o,&l); assert(str);
+ objfreeir(o);
- cbuf[2]= 0;
- while (l>0) {
- cbuf[0]= *str++;
- cbuf[1]= *str++;
- *bytes++= strtoul(cbuf,&ep,16);
- if (ep != cbuf+2) {
- hbytes_free(OBJ_HBYTES(o));
- return staticerr(ip, "hbytes: conversion from hex:"
- " bad hex digit");
+ if (l & 1) return staticerr(ip, "hbytes: conversion from hex:"
+ " odd length in hex", "HBYTES SYNTAX");
+
+ startbytes= bytes= hbytes_arrayspace(OBJ_HBYTES(o), l/2);
+
+ cbuf[2]= 0;
+ while (l>0) {
+ cbuf[0]= *str++;
+ cbuf[1]= *str++;
+ *bytes++= strtoul(cbuf,&ep,16);
+ if (ep != cbuf+2) {
+ hbytes_free(OBJ_HBYTES(o));
+ return staticerr(ip, "hbytes: conversion from hex:"
+ " bad hex digit", "HBYTES SYNTAX");
+ }
+ l -= 2;
}
- l -= 2;
+
}
o->typePtr = &hbytes_type;
int do_hbytes_raw2h(ClientData cd, Tcl_Interp *ip,
Tcl_Obj *binary, HBytes_Value *result) {
- const char *str;
+ const unsigned char *str;
int l;
- str= Tcl_GetStringFromObj(binary,&l);
+ str= Tcl_GetByteArrayFromObj(binary,&l);
hbytes_array(result, str, l);
return TCL_OK;
}
int do_hbytes_h2raw(ClientData cd, Tcl_Interp *ip,
HBytes_Value hex, Tcl_Obj **result) {
- *result= Tcl_NewStringObj(hbytes_data(&hex), hbytes_len(&hex));
+ *result= Tcl_NewByteArrayObj(hbytes_data(&hex), hbytes_len(&hex));
return TCL_OK;
}
-#if 0
-HC_DEFINE(pkcs5) {
- static const PadKindInfo padkindinfos[0]= {
- { "pa", 1, 1 },
- { "pn", 1, 0 },
- { "ua", 0, 1 },
- { "un", 0, 0 },
- { 0 }
- };
+int do_hbytes_length(ClientData cd, Tcl_Interp *ip,
+ HBytes_Value v, int *result) {
+ *result= hbytes_len(&v);
+ return TCL_OK;
+}
- HC_DECLS_HBV;
- Tcl_Obj *v;
- int blocksize;
- const PadKindInfo *pk;
- const BlockCipherInfo *bc;
+int do_hbytes_random(ClientData cd, Tcl_Interp *ip,
+ int length, HBytes_Value *result) {
+ Byte *space;
+ int rc;
+
+ space= hbytes_arrayspace(result, length);
+ rc= get_urandom(ip, space, length);
+ if (rc) { hbytes_free(result); return rc; }
+ return TCL_OK;
+}
+
+int do_hbytes_overwrite(ClientData cd, Tcl_Interp *ip,
+ HBytes_Var v, int start, HBytes_Value sub) {
+ int sub_l;
- HC_ARG_ENUM(pk, padkindinfos);
- HC_ARG_HBV;
- if (!pk->algname) HC_ARG_INTRANGE(blocksize, 1,255);
- else { HC_ARG_ENUM(bc, blockciphers); blocksize= bc->blocksize; }
- HC_ARGS_E;
+ sub_l= hbytes_len(&sub);
+ if (start < 0)
+ return staticerr(ip, "hbytes overwrite start -ve",
+ "HBYTES LENGTH RANGE");
+ if (start + sub_l > hbytes_len(v.hb))
+ return staticerr(ip, "hbytes overwrite out of range",
+ "HBYTES LENGTH UNDERRUN");
+ memcpy(hbytes_data(v.hb) + start, hbytes_data(&sub), sub_l);
+ return TCL_OK;
+}
- /* do nothing :-) */
+int do_hbytes_trimleft(ClientData cd, Tcl_Interp *ip, HBytes_Var v) {
+ const Byte *o, *p, *e;
+ o= p= hbytes_data(v.hb);
+ e= p + hbytes_len(v.hb);
- HC_FINI_HBV;
+ while (p<e && !*p) p++;
+ if (p != o)
+ hbytes_unprepend(v.hb, p-o);
+
+ return TCL_OK;
}
-#endif
-int do__hbytes(ClientData cd, Tcl_Interp *ip,
- const HBytes_SubCommand *subcmd,
- int objc, Tcl_Obj *const *objv) {
+int do_hbytes_repeat(ClientData cd, Tcl_Interp *ip,
+ HBytes_Value sub, int count, HBytes_Value *result) {
+ int sub_l;
+ Byte *data;
+ const Byte *sub_d;
+
+ sub_l= hbytes_len(&sub);
+ if (count < 0) return staticerr(ip, "hbytes repeat count -ve",
+ "HBYTES LENGTH RANGE");
+ if (count > INT_MAX/sub_l) return staticerr(ip, "hbytes repeat too long", 0);
+
+ data= hbytes_arrayspace(result, sub_l*count);
+ sub_d= hbytes_data(&sub);
+ while (count) {
+ memcpy(data, sub_d, sub_l);
+ count--; data += sub_l;
+ }
+ return TCL_OK;
+}
+
+int do_hbytes_xor(ClientData cd, Tcl_Interp *ip,
+ HBytes_Var v, HBytes_Value d) {
+ int l;
+ Byte *dest;
+ const Byte *source;
+
+ l= hbytes_len(v.hb);
+ if (hbytes_len(&d) != l) return
+ staticerr(ip, "hbytes xor lengths do not match", "HBYTES LENGTH MISMATCH");
+
+ dest= hbytes_data(v.hb);
+ source= hbytes_data(&d);
+ memxor(dest,source,l);
+ return TCL_OK;
+}
+
+int do_hbytes_zeroes(ClientData cd, Tcl_Interp *ip,
+ int length, HBytes_Value *result) {
+ Byte *space;
+ space= hbytes_arrayspace(result, length);
+ memset(space,0,length);
+ return TCL_OK;
+}
+
+int do_hbytes_compare(ClientData cd, Tcl_Interp *ip,
+ HBytes_Value a, HBytes_Value b, int *result) {
+ int al, bl, minl, r;
+
+ al= hbytes_len(&a);
+ bl= hbytes_len(&b);
+ minl= al<bl ? al : bl;
+
+ r= memcmp(hbytes_data(&a), hbytes_data(&b), minl);
+
+ if (r<0) *result= -2;
+ else if (r>0) *result= +2;
+ else {
+ if (al<bl) *result= -1;
+ else if (al>bl) *result= +1;
+ else *result= 0;
+ }
+ return TCL_OK;
+}
+
+int do_hbytes_range(ClientData cd, Tcl_Interp *ip,
+ HBytes_Value v, int start, int size,
+ HBytes_Value *result) {
+ const Byte *data;
+ int l;
+
+ l= hbytes_len(&v);
+ if (start<0 || size<0)
+ return staticerr(ip,"hbytes range subscript(s) -ve","HBYTES LENGTH RANGE");
+ if (l<start+size)
+ return staticerr(ip, "hbytes range subscripts too big",
+ "HBYTES LENGTH UNDERRUN");
+
+ data= hbytes_data(&v);
+ hbytes_array(result, data+start, size);
+ return TCL_OK;
+}
+
+/* hbytes representing uint16_t's */
+
+int do_hbytes_h2ushort(ClientData cd, Tcl_Interp *ip,
+ HBytes_Value hex, long *result) {
+ const Byte *data;
+ int l;
+
+ l= hbytes_len(&hex);
+ if (l>2)
+ return staticerr(ip, "hbytes h2ushort input more than 4 hex digits",
+ "HBYTES VALUE OVERFLOW");
+
+ data= hbytes_data(&hex);
+ *result= data[l-1] | (l>1 ? data[0]<<8 : 0);
+ return TCL_OK;
+}
+
+int do_hbytes_ushort2h(ClientData cd, Tcl_Interp *ip,
+ long input, HBytes_Value *result) {
+ uint16_t us;
+
+ if (input > 0x0ffff)
+ return staticerr(ip, "hbytes ushort2h input >2^16",
+ "HBYTES VALUE OVERFLOW");
+
+ us= htons(input);
+ hbytes_array(result,(const Byte*)&us,2);
+ return TCL_OK;
+}
+
+/* toplevel functions */
+
+int do_toplevel_hbytes(ClientData cd, Tcl_Interp *ip,
+ const HBytes_SubCommand *subcmd,
+ int objc, Tcl_Obj *const *objv) {
+ return subcmd->func(0,ip,objc,objv);
+}
+
+int do_toplevel_dgram_socket(ClientData cd, Tcl_Interp *ip,
+ const DgramSocket_SubCommand *subcmd,
+ int objc, Tcl_Obj *const *objv) {
+ return subcmd->func(0,ip,objc,objv);
+}
+
+int do_toplevel_ulong(ClientData cd, Tcl_Interp *ip,
+ const ULong_SubCommand *subcmd,
+ int objc, Tcl_Obj *const *objv) {
return subcmd->func(0,ip,objc,objv);
}
+#define URANDOM "/dev/urandom"
+
+int get_urandom(Tcl_Interp *ip, Byte *buffer, int l) {
+ static FILE *urandom;
+
+ int r, esave;
+
+ if (!urandom) {
+ urandom= fopen(URANDOM,"rb");
+ if (!urandom) return posixerr(ip,errno,"open " URANDOM);
+ }
+ r= fread(buffer,1,l,urandom);
+ if (r==l) return 0;
+
+ esave= errno;
+ fclose(urandom); urandom=0;
+
+ if (ferror(urandom)) {
+ return posixerr(ip,errno,"read " URANDOM);
+ } else {
+ assert(feof(urandom));
+ return staticerr(ip, URANDOM " gave eof!", 0);
+ }
+}
+
int Hbytes_Init(Tcl_Interp *ip) {
+ const TopLevel_Command *cmd;
+
Tcl_RegisterObjType(&hbytes_type);
+ Tcl_RegisterObjType(&blockcipherkey_type);
Tcl_RegisterObjType(&enum_nearlytype);
Tcl_RegisterObjType(&enum1_nearlytype);
- Tcl_CreateObjCommand(ip,"hbytes", pa__hbytes,0,0);
+ Tcl_RegisterObjType(&sockaddr_type);
+ Tcl_RegisterObjType(&dgramsockid_type);
+ Tcl_RegisterObjType(&ulong_type);
+
+ for (cmd=toplevel_commands;
+ cmd->name;
+ cmd++)
+ Tcl_CreateObjCommand(ip, cmd->name, cmd->func, 0,0);
+
return TCL_OK;
}
~ian / chiark-tcl.git / blobdiff