X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=odr%2Fber_int.c;h=c22f7d5ea0af9cb5c71ebc929349035d5596e27f;hb=7d3aff023a795b533064879e58946993a01ef729;hp=e8e50cf3eaa81aafc0950c2367e9851895dc5c36;hpb=41f4b2c49b60cf5f9ae896b537211ae830c39a55;p=yaz-moved-to-github.git diff --git a/odr/ber_int.c b/odr/ber_int.c index e8e50cf..c22f7d5 100644 --- a/odr/ber_int.c +++ b/odr/ber_int.c @@ -1,10 +1,20 @@ /* - * 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_int.c,v $ - * Revision 1.4 1995-03-08 12:12:07 quinn + * Revision 1.7 1995-05-16 08:50:44 quinn + * License, documentation, and memory fixes + * + * Revision 1.6 1995/04/18 08:15:14 quinn + * Added dynamic memory allocation on encoding (whew). Code is now somewhat + * neater. We'll make the same change for decoding one day. + * + * Revision 1.5 1995/03/27 15:01:44 quinn + * Added include of sys/types to further portability + * + * Revision 1.4 1995/03/08 12:12:07 quinn * Added better error checking. * * Revision 1.3 1995/02/09 15:51:46 quinn @@ -19,10 +29,11 @@ */ #include -#include +#include +#include /* for htons... */ #include -static int ber_encinteger(unsigned char *buf, int val, int maxlen); +static int ber_encinteger(ODR o, int val); static int ber_decinteger(unsigned char *buf, int *val); int ber_integer(ODR o, int *val) @@ -41,13 +52,8 @@ int ber_integer(ODR o, int *val) o->left -= res; return 1; case ODR_ENCODE: - if ((res = ber_encinteger(o->bp, *val, o->left)) <= 0) - { - o->error = OSPACE; + if ((res = ber_encinteger(o, *val)) < 0) return 0; - } - o->bp += res; - o->left -= res; return 1; case ODR_PRINT: return 1; default: o->error = OOTHER; return 0; @@ -57,31 +63,32 @@ int ber_integer(ODR o, int *val) /* * Returns: number of bytes written or -1 for error (out of bounds). */ -int ber_encinteger(unsigned char *buf, int val, int maxlen) +int ber_encinteger(ODR o, int val) { - unsigned char *b = buf, *lenpos; + int lenpos; int a, len; union { int i; unsigned char c[sizeof(int)]; } tmp; - lenpos = b; - maxlen--; - b++; + lenpos = odr_tell(o); + if (odr_putc(o, 0) < 0) /* dummy */ + return -1; tmp.i = htonl(val); /* ensure that that we're big-endian */ for (a = 0; a < sizeof(int) - 1; a++) /* skip superfluous octets */ if (!((tmp.c[a] == 0 && !(tmp.c[a+1] & 0X80)) || (tmp.c[a] == 0XFF && (tmp.c[a+1] & 0X80)))) break; - if ((len = sizeof(int) - a) > maxlen) + len = sizeof(int) - a; + if (odr_write(o, (unsigned char*) tmp.c + a, len) < 0) return -1; - memcpy(b, tmp.c + a, len); - b += len; - if (ber_enclen(lenpos, len, 1, 1) != 1) + odr_seek(o, ODR_S_SET, lenpos); + if (ber_enclen(o, len, 1, 1) != 1) return -1; + odr_seek(o, ODR_S_END, 0); #ifdef ODR_DEBUG fprintf(stderr, "[val=%d]", val); #endif - return b - buf; + return 0; } /*