From b79a4cffea77b03b159aca183b596ba1cbf7b85b Mon Sep 17 00:00:00 2001 From: Laurent Vivier Date: Fri, 21 May 2004 12:42:40 +0000 Subject: [PATCH] Add command to tune first level --- tools/Makefile | 8 +- tools/emile-first-tune.c | 208 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 214 insertions(+), 2 deletions(-) create mode 100644 tools/emile-first-tune.c diff --git a/tools/Makefile b/tools/Makefile index 26ee08f..cfe96fe 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -4,13 +4,17 @@ # # +PROGRAMS = emile-set-cmdline emile-first-info emile-first-tune + CFLAGS = -Wall -all: emile-set-cmdline emile-first-info +all: $(PROGRAMS) emile-set-cmdline.o: emile-set-cmdline.c emile-first.h emile-first-info.o: emile-first-info.c emile-first.h +emile-first-tune.o: emile-first-tune.c emile-first.h + clean: - rm -f *.o emile-set-cmdline + rm -f *.o $(PROGRAMS) diff --git a/tools/emile-first-tune.c b/tools/emile-first-tune.c new file mode 100644 index 0000000..4178ea2 --- /dev/null +++ b/tools/emile-first-tune.c @@ -0,0 +1,208 @@ +/* + * + * (c) 2004 Laurent Vivier + * + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "emile-first.h" + +#define TUNE_DRIVE 0x0001 +#define TUNE_OFFSET 0x0002 +#define TUNE_SIZE 0x0004 + +static void usage(int argc, char** argv) +{ + fprintf(stderr, "Usage: %s [-d ][-o ][-s ] \n", argv[0]); + fprintf(stderr, "\n set first level boot block info\n"); + fprintf(stderr, " -d : set the drive number (default 1)\n"); + fprintf(stderr, " -o : set offset of second level in bytes\n"); + fprintf(stderr, " -s : set size of second level in bytes\n"); + fprintf(stderr, "Display current values if no flags provided\n"); +} + +int first_tune( char* image, unsigned short tune_mask, int drive_num, + int file_ref, int second_offset, int second_size) +{ + int fd; + eBootBlock_t firstBlock; + int ret; + + fd = open(image, O_RDWR); + if (fd == -1) + { + perror("Cannot open image file"); + return 2; + } + + ret = read(fd, &firstBlock, sizeof(firstBlock)); + if (ret != sizeof(firstBlock)) + { + perror("Cannot read first level boot block"); + close(fd); + return 3; + } + + if ( strncmp( firstBlock.boot_block_header.SysName+1, + "Mac Bootloader", 14) == 0 ) + { + printf("EMILE boot block identified\n\n"); + + if (tune_mask & TUNE_DRIVE) + { + printf("Set drive number to %d\n", drive_num); + firstBlock.second_param_block.ioVRefNum = drive_num; + } + + if (tune_mask & TUNE_OFFSET) + { + printf("Set second level offset to %d\n", second_offset); + firstBlock.second_param_block.ioPosOffset = second_offset; + } + + if (tune_mask & TUNE_SIZE) + { + printf("Set second level size to %d\n", second_size); + firstBlock.second_param_block.ioReqCount = second_size; + } + + if (tune_mask == 0) + { + printf("Drive number: %d\n", + firstBlock.second_param_block.ioVRefNum); + printf("File reference number: %d\n", + firstBlock.second_param_block.ioRefNum); + printf("Second level size: %ld\n", + firstBlock.second_param_block.ioReqCount); + printf("Second level offset: %ld\n", + firstBlock.second_param_block.ioPosOffset); + } + else + { + ret = lseek(fd, 0, SEEK_SET); + if (ret != 0) + { + perror("Cannot rewind !"); + close(fd); + return 5; + } + ret = write(fd, &firstBlock, sizeof(firstBlock)); + if (ret != sizeof(firstBlock)) + { + perror("Cannot write first level boot block"); + close(fd); + return 6; + } + } + } + else + { + fprintf(stderr, "\nThis is not an EMILE boot block !\n"); + } + + close(fd); + return 0; +} + +int main(int argc, char** argv) +{ + int ret; + int cargc; + char** cargv; + char* image; + unsigned short tune_mask; + int drive_num, file_ref, second_offset, second_size; + + ASSERT_BBH( + {fprintf(stderr,"Internal Error: Bad BootBlkHdr size\n"); exit(1);}); + ASSERT_PBR( + {fprintf(stderr,"Internal Error: Bad ParamBlockRec size\n"); exit(1);}); + ASSERT_BB( + {fprintf(stderr,"Internal Error: Bad boot block size\n"); exit(1);}); + + tune_mask = 0; + image = NULL; + cargc = argc - 1; + cargv = argv + 1; + while (cargc > 0) + { + if (strcmp(*cargv, "-d") == 0) + { + tune_mask |= TUNE_DRIVE; + cargv++; + cargc--; + if (cargv == 0) + { + fprintf(stderr, "-d needs drive number\n"); + usage(argc, argv); + return 1; + } + drive_num = atoi(*cargv); + cargv++; + cargc--; + } + else if (strcmp(*cargv, "-o") == 0) + { + tune_mask |= TUNE_OFFSET; + cargv++; + cargc--; + if (cargv == 0) + { + fprintf(stderr, "-o needs offset\n"); + usage(argc, argv); + return 1; + } + second_offset = atoi(*cargv); + cargv++; + cargc--; + } + else if (strcmp(*cargv, "-s") == 0) + { + tune_mask |= TUNE_SIZE; + cargv++; + cargc--; + if (cargv == 0) + { + fprintf(stderr, "-s needs size\n"); + usage(argc, argv); + return 1; + } + second_size = atoi(*cargv); + cargv++; + cargc--; + } + else + { + if (image != NULL) + { + fprintf(stderr, "Duplicate filename %s %s\n", + image, *cargv); + usage(argc, argv); + return 1; + } + + image = *cargv; + cargv++; + cargc--; + } + } + + if (image == NULL) + { + fprintf(stderr, "Missing filename to apply tuning\n"); + usage(argc, argv); + return 1; + } + + ret = first_tune( image, tune_mask, drive_num, file_ref, + second_offset, second_size); + + return ret; +}