X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=Source%2Funpack.c;h=429a2cdf5039f5ea202bdd0a45b06efbc3fe4fe2;hb=5310d6ffd89fd8b981b273b332a232b70b4ce7ad;hp=7715cc0f8f81ca279b68a5e4a67a9dee9cfdea34;hpb=44146d06c780d3aaa283672fedb08b8870ebe1b9;p=lugaru.git diff --git a/Source/unpack.c b/Source/unpack.c index 7715cc0..429a2cd 100644 --- a/Source/unpack.c +++ b/Source/unpack.c @@ -10,7 +10,7 @@ of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. @@ -23,7 +23,49 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. #include "binio.h" #include "private.h" -#include "unpack_private.h" + +struct BinIOUnpackContext { + const uint8_t *data; + va_list args; +}; + +static void BinIOUnpack(void *context, int type, int byte_order, int count) +{ + struct BinIOUnpackContext *ctx = (struct BinIOUnpackContext*)context; + if (count == -1) { + count = 1; + } + + switch (type) { + case BinIO_TYPE_IGNORE_BYTE: + ctx->data += 1 * count; + break; + case BinIO_TYPE_BYTE: + BinIOConvert1(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); + ctx->data += 1 * count; + break; + case BinIO_TYPE_INT16: + BinIOConvert2(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); + ctx->data += 2 * count; + break; + case BinIO_TYPE_INT32: + BinIOConvert4(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); + ctx->data += 4 * count; + break; + case BinIO_TYPE_INT64: + BinIOConvert8(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); + ctx->data += 8 * count; + break; + case BinIO_TYPE_FLOAT32: + BinIOConvert4(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); + ctx->data += 4 * count; + break; + case BinIO_TYPE_FLOAT64: + BinIOConvert8(byte_order, BinIO_HOST_BYTE_ORDER, ctx->data, va_arg(ctx->args, uint8_t *), count); + ctx->data += 8 * count; + break; + } +} void unpackf(const char *format, ...) { @@ -55,10 +97,10 @@ void vsunpackf(const void *buffer, const char *format, va_list args) struct BinIOUnpackContext context; BinIOInitFormatCursor(&cursor, format); - + context.data = (const unsigned char*)buffer; va_copy(context.args, args); - + while (BinIONextChar(&context, &cursor, BinIOUnpack)) {} va_end(context.args); @@ -69,8 +111,8 @@ void vfunpackf(FILE *file, const char *format, va_list args) size_t n_bytes = BinIOFormatByteCount(format); void* buffer = malloc(n_bytes); fread(buffer, n_bytes, 1, file); - + vsunpackf(buffer, format, args); - + free(buffer); }