X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=odr%2Fber_any.c;h=2e9a3ce264cd328b8b3958148389e882089fe53f;hb=396d0ccd2549e6f31cf1f9adc1c19a97d3a7b0de;hp=71846df233a370eb0dc510105e84abedcb3d95ff;hpb=6d0cb38e2fd32c722b0af63ce050ac5c458d849f;p=yaz-moved-to-github.git diff --git a/odr/ber_any.c b/odr/ber_any.c index 71846df..2e9a3ce 100644 --- a/odr/ber_any.c +++ b/odr/ber_any.c @@ -4,7 +4,19 @@ * Sebastian Hammer, Adam Dickmeiss * * $Log: ber_any.c,v $ - * Revision 1.3 1995-02-10 18:57:24 quinn + * 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 @@ -24,9 +36,12 @@ 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 = odr_malloc(o, res); memcpy((*p)->buf, o->bp, res); (*p)->len = (*p)->size = res; o->bp += res; @@ -34,23 +49,28 @@ int ber_any(ODR o, Odr_any **p) return 1; case ODR_ENCODE: if ((*p)->len > o->left) + { + o->error = OSPACE; 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; unsigned char *b = buf; + if (!len) + return 0; if (!buf[0] && !buf[1]) return 0; if ((res = ber_dectag(b, &class, &tag, &cons)) <= 0) @@ -66,18 +86,18 @@ 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; } + return (b - buf) + 2; }