74 lines
1.5 KiB
C
74 lines
1.5 KiB
C
//
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// signGP.c
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// Read the x-load.bin file and write out the x-load.bin.ift file.
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// The signed image is the original pre-pended with the size of the image
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// and the load address. If not entered on command line, file name is
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// assumed to be x-load.bin in current directory and load address is
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// 0x40200800.
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <string.h>
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#include <malloc.h>
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main(int argc, char *argv[])
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{
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int i;
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char ifname[FILENAME_MAX], ofname[FILENAME_MAX], ch;
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FILE *ifile, *ofile;
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unsigned long loadaddr, len;
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struct stat sinfo;
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// Default to x-load.bin and 0x40200800.
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strcpy(ifname, "x-load.bin");
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loadaddr = 0x40200800;
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if ((argc == 2) || (argc == 3))
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strcpy(ifname, argv[1]);
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if (argc == 3)
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loadaddr = strtol(argv[2], NULL, 16);
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// Form the output file name.
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strcpy(ofname, ifname);
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strcat(ofname, ".ift");
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// Open the input file.
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ifile = fopen(ifname, "rb");
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if (ifile == NULL) {
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printf("Cannot open %s\n", ifname);
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exit(0);
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}
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// Get file length.
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stat(ifname, &sinfo);
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len = sinfo.st_size;
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// Open the output file and write it.
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ofile = fopen(ofname, "wb");
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if (ofile == NULL) {
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printf("Cannot open %s\n", ofname);
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fclose(ifile);
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exit(0);
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}
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// Pad 1 sector of zeroes.
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//ch = 0x00;
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//for (i=0; i<0x200; i++)
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// fwrite(&ch, 1, 1, ofile);
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fwrite(&len, 1, 4, ofile);
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fwrite(&loadaddr, 1, 4, ofile);
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for (i=0; i<len; i++) {
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fread(&ch, 1, 1, ifile);
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fwrite(&ch, 1, 1, ofile);
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}
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fclose(ifile);
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fclose(ofile);
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}
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