X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=odr%2Fber_any.c;h=3c00d4750840dec5540a08bc890fba0c49afb3e6;hp=71846df233a370eb0dc510105e84abedcb3d95ff;hb=e1af980ed4466d784db2395ad5bdddadb8a24504;hpb=6d0cb38e2fd32c722b0af63ce050ac5c458d849f diff --git a/odr/ber_any.c b/odr/ber_any.c index 71846df..3c00d47 100644 --- a/odr/ber_any.c +++ b/odr/ber_any.c @@ -1,10 +1,44 @@ /* - * Copyright (C) 1994, Index Data I/S - * All rights reserved. + * Copyright (c) 1995, Index Data + * See the file LICENSE for details. * Sebastian Hammer, Adam Dickmeiss * * $Log: ber_any.c,v $ - * Revision 1.3 1995-02-10 18:57:24 quinn + * Revision 1.14 1998-02-11 11:53:34 adam + * Changed code so that it compiles as C++. + * + * Revision 1.13 1997/05/14 06:53:56 adam + * C++ support. + * + * Revision 1.12 1995/09/29 17:12:15 quinn + * Smallish + * + * Revision 1.11 1995/09/27 15:02:54 quinn + * Modified function heads & prototypes. + * + * Revision 1.10 1995/05/16 08:50:42 quinn + * License, documentation, and memory fixes + * + * Revision 1.9 1995/04/18 08:15:12 quinn + * Added dynamic memory allocation on encoding (whew). Code is now somewhat + * neater. We'll make the same change for decoding one day. + * + * Revision 1.8 1995/04/17 09:37:42 quinn + * *** empty log message *** + * + * Revision 1.7 1995/03/17 10:17:39 quinn + * Added memory management. + * + * Revision 1.6 1995/03/08 12:12:02 quinn + * Added better error checking. + * + * Revision 1.5 1995/02/14 20:39:54 quinn + * Fixed bugs in completeBER and (serious one in) ber_oid. + * + * Revision 1.4 1995/02/14 11:54:33 quinn + * Adjustments. + * + * Revision 1.3 1995/02/10 18:57:24 quinn * More in the way of error-checking. * * Revision 1.2 1995/02/10 15:55:28 quinn @@ -24,36 +58,38 @@ int ber_any(ODR o, Odr_any **p) switch (o->direction) { case ODR_DECODE: - if ((res = completeBER(o->bp, 1000)) <= 0) /* FIX THIS */ + if ((res = completeBER(o->bp, o->left)) <= 0) /* FIX THIS */ + { + o->error = OPROTO; return 0; - (*p)->buf = nalloc(o, res); + } + (*p)->buf = (unsigned char *)odr_malloc(o, res); memcpy((*p)->buf, o->bp, res); (*p)->len = (*p)->size = res; o->bp += res; o->left -= res; return 1; case ODR_ENCODE: - if ((*p)->len > o->left) + if (odr_write(o, (*p)->buf, (*p)->len) < 0) return 0; - memcpy(o->bp , (*p)->buf, (*p)->len); - o->bp += (*p)->len; - o->left -= (*p)->len; return 1; - default: return 0; + default: o->error = OOTHER; return 0; } } /* - * Return length of BER-package or -1. + * Return length of BER-package or 0. */ int completeBER(unsigned char *buf, int len) { - int res, ll, class, tag, cons; + int res, ll, zclass, tag, cons; unsigned char *b = buf; + if (!len) + return 0; if (!buf[0] && !buf[1]) return 0; - if ((res = ber_dectag(b, &class, &tag, &cons)) <= 0) + if ((res = ber_dectag(b, &zclass, &tag, &cons)) <= 0) return 0; if (res > len) return 0; @@ -66,18 +102,20 @@ int completeBER(unsigned char *buf, int len) b += res; len -= res; if (ll >= 0) - return (len >= ll ? ll + (b-buf) : -1); + return (len >= ll ? ll + (b-buf) : 0); if (!cons) return 0; - while (1) + /* constructed - cycle through children */ + while (len >= 2) { - if ((res = completeBER(b, len)) < 0) + if (*b == 0 && *(b + 1) == 0) + break; + if (!(res = completeBER(b, len))) return 0; b += res; len -= res; - if (len < 2) - return 0; - if (*b == 0 && *(b + 1) == 0) - return (b - buf) + 2; } + if (len < 2) + return 0; + return (b - buf) + 2; }