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Diffstat (limited to 'src/VBox/Devices/PC/ipxe/src/util/zbin.c')
-rw-r--r--src/VBox/Devices/PC/ipxe/src/util/zbin.c442
1 files changed, 442 insertions, 0 deletions
diff --git a/src/VBox/Devices/PC/ipxe/src/util/zbin.c b/src/VBox/Devices/PC/ipxe/src/util/zbin.c
new file mode 100644
index 00000000..ad7e5f61
--- /dev/null
+++ b/src/VBox/Devices/PC/ipxe/src/util/zbin.c
@@ -0,0 +1,442 @@
+#include <stdio.h>
+#include <sys/stat.h>
+
+#define ENCODE
+#define VERBOSE
+#include "nrv2b.c"
+FILE *infile, *outfile;
+
+#undef DEBUG
+#define DEBUG 0
+
+struct input_file {
+ void *buf;
+ size_t len;
+};
+
+struct output_file {
+ void *buf;
+ size_t len;
+ size_t hdr_len;
+ size_t max_len;
+};
+
+struct zinfo_common {
+ char type[4];
+ char pad[12];
+};
+
+struct zinfo_copy {
+ char type[4];
+ uint32_t offset;
+ uint32_t len;
+ uint32_t align;
+};
+
+struct zinfo_pack {
+ char type[4];
+ uint32_t offset;
+ uint32_t len;
+ uint32_t align;
+};
+
+struct zinfo_payload {
+ char type[4];
+ uint32_t pad1;
+ uint32_t pad2;
+ uint32_t align;
+};
+
+struct zinfo_add {
+ char type[4];
+ uint32_t offset;
+ uint32_t divisor;
+ uint32_t pad;
+};
+
+union zinfo_record {
+ struct zinfo_common common;
+ struct zinfo_copy copy;
+ struct zinfo_pack pack;
+ struct zinfo_payload payload;
+ struct zinfo_add add;
+};
+
+struct zinfo_file {
+ union zinfo_record *zinfo;
+ unsigned int num_entries;
+};
+
+static unsigned long align ( unsigned long value, unsigned long algn ) {
+ return ( ( value + algn - 1 ) & ~( algn - 1 ) );
+}
+
+static int read_file ( const char *filename, void **buf, size_t *len ) {
+ FILE *file;
+ struct stat sstat;
+
+ file = fopen ( filename, "r" );
+ if ( ! file ) {
+ fprintf ( stderr, "Could not open %s: %s\n", filename,
+ strerror ( errno ) );
+ goto err;
+ }
+
+ if ( fstat ( fileno ( file ), &sstat ) < 0 ) {
+ fprintf ( stderr, "Could not stat %s: %s\n", filename,
+ strerror ( errno ) );
+ goto err;
+ }
+
+ *len = sstat.st_size;
+ *buf = malloc ( *len );
+ if ( ! *buf ) {
+ fprintf ( stderr, "Could not malloc() %zd bytes for %s: %s\n",
+ *len, filename, strerror ( errno ) );
+ goto err;
+ }
+
+ if ( fread ( *buf, 1, *len, file ) != *len ) {
+ fprintf ( stderr, "Could not read %zd bytes from %s: %s\n",
+ *len, filename, strerror ( errno ) );
+ goto err;
+ }
+
+ fclose ( file );
+ return 0;
+
+ err:
+ if ( file )
+ fclose ( file );
+ return -1;
+}
+
+static int read_input_file ( const char *filename,
+ struct input_file *input ) {
+ return read_file ( filename, &input->buf, &input->len );
+}
+
+static int read_zinfo_file ( const char *filename,
+ struct zinfo_file *zinfo ) {
+ void *buf;
+ size_t len;
+
+ if ( read_file ( filename, &buf, &len ) < 0 )
+ return -1;
+
+ if ( ( len % sizeof ( *(zinfo->zinfo) ) ) != 0 ) {
+ fprintf ( stderr, ".zinfo file %s has invalid length %zd\n",
+ filename, len );
+ return -1;
+ }
+
+ zinfo->zinfo = buf;
+ zinfo->num_entries = ( len / sizeof ( *(zinfo->zinfo) ) );
+ return 0;
+}
+
+static int alloc_output_file ( size_t max_len, struct output_file *output ) {
+ output->len = 0;
+ output->max_len = ( max_len );
+ output->buf = malloc ( max_len );
+ if ( ! output->buf ) {
+ fprintf ( stderr, "Could not allocate %zd bytes for output\n",
+ max_len );
+ return -1;
+ }
+#ifndef VBOX
+ memset ( output->buf, 0xff, sizeof ( output->buf ) );
+#else
+ memset ( output->buf, 0xff, max_len );
+#endif
+ return 0;
+}
+
+static int process_zinfo_copy ( struct input_file *input,
+ struct output_file *output,
+ union zinfo_record *zinfo ) {
+ struct zinfo_copy *copy = &zinfo->copy;
+ size_t offset = copy->offset;
+ size_t len = copy->len;
+
+ if ( ( offset + len ) > input->len ) {
+ fprintf ( stderr, "Input buffer overrun on copy\n" );
+ return -1;
+ }
+
+ output->len = align ( output->len, copy->align );
+ if ( ( output->len + len ) > output->max_len ) {
+ fprintf ( stderr, "Output buffer overrun on copy\n" );
+ return -1;
+ }
+
+ if ( DEBUG ) {
+ fprintf ( stderr, "COPY [%#zx,%#zx) to [%#zx,%#zx)\n",
+ offset, ( offset + len ), output->len,
+ ( output->len + len ) );
+ }
+
+ memcpy ( (void*)((char*) output->buf + output->len ),
+ (void*)((char*) input->buf + offset ), len );
+ output->len += len;
+ return 0;
+}
+
+static int process_zinfo_pack ( struct input_file *input,
+ struct output_file *output,
+ union zinfo_record *zinfo ) {
+ struct zinfo_pack *pack = &zinfo->pack;
+ size_t offset = pack->offset;
+ size_t len = pack->len;
+ unsigned long packed_len;
+
+ if ( ( offset + len ) > input->len ) {
+ fprintf ( stderr, "Input buffer overrun on pack\n" );
+ return -1;
+ }
+
+ output->len = align ( output->len, pack->align );
+ if ( output->len > output->max_len ) {
+ fprintf ( stderr, "Output buffer overrun on pack\n" );
+ return -1;
+ }
+
+ if ( ucl_nrv2b_99_compress ( (void*)((char*) input->buf + offset ), len,
+ (void*)((char*) output->buf + output->len ),
+ &packed_len, 0 ) != UCL_E_OK ) {
+ fprintf ( stderr, "Compression failure\n" );
+ return -1;
+ }
+
+ if ( DEBUG ) {
+ fprintf ( stderr, "PACK [%#zx,%#zx) to [%#zx,%#zx)\n",
+ offset, ( offset + len ), output->len,
+ ( size_t )( output->len + packed_len ) );
+ }
+
+ output->len += packed_len;
+ if ( output->len > output->max_len ) {
+ fprintf ( stderr, "Output buffer overrun on pack\n" );
+ return -1;
+ }
+
+ return 0;
+}
+
+static int process_zinfo_payl ( struct input_file *input
+ __attribute__ (( unused )),
+ struct output_file *output,
+ union zinfo_record *zinfo ) {
+ struct zinfo_payload *payload = &zinfo->payload;
+
+ output->len = align ( output->len, payload->align );
+ output->hdr_len = output->len;
+
+ if ( DEBUG ) {
+ fprintf ( stderr, "PAYL at %#zx\n", output->hdr_len );
+ }
+ return 0;
+}
+
+static int process_zinfo_add ( struct input_file *input
+ __attribute__ (( unused )),
+ struct output_file *output,
+ size_t len,
+ struct zinfo_add *add,
+ size_t datasize ) {
+ size_t offset = add->offset;
+ void *target;
+ signed long addend;
+ unsigned long size;
+ signed long val;
+ unsigned long mask;
+
+ if ( ( offset + datasize ) > output->len ) {
+ fprintf ( stderr, "Add at %#zx outside output buffer\n",
+ offset );
+ return -1;
+ }
+
+ target = (void*)((char*) output->buf + offset );
+ size = ( align ( len, add->divisor ) / add->divisor );
+
+ switch ( datasize ) {
+ case 1:
+ addend = *( ( int8_t * ) target );
+ break;
+ case 2:
+ addend = *( ( int16_t * ) target );
+ break;
+ case 4:
+ addend = *( ( int32_t * ) target );
+ break;
+ default:
+ fprintf ( stderr, "Unsupported add datasize %zd\n",
+ datasize );
+ return -1;
+ }
+
+ val = size + addend;
+
+ /* The result of 1UL << ( 8 * sizeof(unsigned long) ) is undefined */
+ mask = ( ( datasize < sizeof ( mask ) ) ?
+ ( ( 1UL << ( 8 * datasize ) ) - 1 ) : ~0UL );
+
+ if ( val < 0 ) {
+ fprintf ( stderr, "Add %s%#x+%#lx at %#zx %sflows field\n",
+ ( ( addend < 0 ) ? "-" : "" ), abs ( addend ), size,
+ offset, ( ( addend < 0 ) ? "under" : "over" ) );
+ return -1;
+ }
+
+ if ( val & ~mask ) {
+ fprintf ( stderr, "Add %s%#x+%#lx at %#zx overflows %zd-byte "
+ "field (%d bytes too big)\n",
+ ( ( addend < 0 ) ? "-" : "" ), abs ( addend ), size,
+ offset, datasize,
+ ( int )( ( val - mask - 1 ) * add->divisor ) );
+ return -1;
+ }
+
+ switch ( datasize ) {
+ case 1:
+ *( ( uint8_t * ) target ) = val;
+ break;
+ case 2:
+ *( ( uint16_t * ) target ) = val;
+ break;
+ case 4:
+ *( ( uint32_t * ) target ) = val;
+ break;
+ }
+
+ if ( DEBUG ) {
+ fprintf ( stderr, "ADDx [%#zx,%#zx) (%s%#x+(%#zx/%#x)) = "
+ "%#lx\n", offset, ( offset + datasize ),
+ ( ( addend < 0 ) ? "-" : "" ), abs ( addend ),
+ len, add->divisor, val );
+ }
+
+ return 0;
+}
+
+static int process_zinfo_addb ( struct input_file *input,
+ struct output_file *output,
+ union zinfo_record *zinfo ) {
+ return process_zinfo_add ( input, output, output->len,
+ &zinfo->add, 1 );
+}
+
+static int process_zinfo_addw ( struct input_file *input,
+ struct output_file *output,
+ union zinfo_record *zinfo ) {
+ return process_zinfo_add ( input, output, output->len,
+ &zinfo->add, 2 );
+}
+
+static int process_zinfo_addl ( struct input_file *input,
+ struct output_file *output,
+ union zinfo_record *zinfo ) {
+ return process_zinfo_add ( input, output, output->len,
+ &zinfo->add, 4 );
+}
+
+static int process_zinfo_adhb ( struct input_file *input,
+ struct output_file *output,
+ union zinfo_record *zinfo ) {
+ return process_zinfo_add ( input, output, output->hdr_len,
+ &zinfo->add, 1 );
+}
+
+static int process_zinfo_adhw ( struct input_file *input,
+ struct output_file *output,
+ union zinfo_record *zinfo ) {
+ return process_zinfo_add ( input, output, output->hdr_len,
+ &zinfo->add, 2 );
+}
+
+static int process_zinfo_adhl ( struct input_file *input,
+ struct output_file *output,
+ union zinfo_record *zinfo ) {
+ return process_zinfo_add ( input, output, output->hdr_len,
+ &zinfo->add, 4 );
+}
+
+struct zinfo_processor {
+ char *type;
+ int ( * process ) ( struct input_file *input,
+ struct output_file *output,
+ union zinfo_record *zinfo );
+};
+
+static struct zinfo_processor zinfo_processors[] = {
+ { "COPY", process_zinfo_copy },
+ { "PACK", process_zinfo_pack },
+ { "PAYL", process_zinfo_payl },
+ { "ADDB", process_zinfo_addb },
+ { "ADDW", process_zinfo_addw },
+ { "ADDL", process_zinfo_addl },
+ { "ADHB", process_zinfo_adhb },
+ { "ADHW", process_zinfo_adhw },
+ { "ADHL", process_zinfo_adhl },
+};
+
+static int process_zinfo ( struct input_file *input,
+ struct output_file *output,
+ union zinfo_record *zinfo ) {
+ struct zinfo_common *common = &zinfo->common;
+ struct zinfo_processor *processor;
+ char type[ sizeof ( common->type ) + 1 ] = "";
+ unsigned int i;
+
+ strncat ( type, common->type, sizeof ( type ) - 1 );
+ for ( i = 0 ; i < ( sizeof ( zinfo_processors ) /
+ sizeof ( zinfo_processors[0] ) ) ; i++ ) {
+ processor = &zinfo_processors[i];
+ if ( strcmp ( processor->type, type ) == 0 )
+ return processor->process ( input, output, zinfo );
+ }
+
+ fprintf ( stderr, "Unknown zinfo record type \"%s\"\n", &type[0] );
+ return -1;
+}
+
+static int write_output_file ( struct output_file *output ) {
+ if ( fwrite ( output->buf, 1, output->len, stdout ) != output->len ) {
+ fprintf ( stderr, "Could not write %zd bytes of output: %s\n",
+ output->len, strerror ( errno ) );
+ return -1;
+ }
+ return 0;
+}
+
+int main ( int argc, char **argv ) {
+ struct input_file input;
+ struct output_file output;
+ struct zinfo_file zinfo;
+ unsigned int i;
+
+ if ( argc != 3 ) {
+ fprintf ( stderr, "Syntax: %s file.bin file.zinfo "
+ "> file.zbin\n", argv[0] );
+ exit ( 1 );
+ }
+
+ if ( read_input_file ( argv[1], &input ) < 0 )
+ exit ( 1 );
+ if ( read_zinfo_file ( argv[2], &zinfo ) < 0 )
+ exit ( 1 );
+ if ( alloc_output_file ( ( input.len * 4 ), &output ) < 0 )
+ exit ( 1 );
+
+ for ( i = 0 ; i < zinfo.num_entries ; i++ ) {
+ if ( process_zinfo ( &input, &output,
+ &zinfo.zinfo[i] ) < 0 )
+ exit ( 1 );
+ }
+
+ if ( write_output_file ( &output ) < 0 )
+ exit ( 1 );
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 08:14:32 +0000