mirror of https://github.com/marqs85/ossc.git
54 lines
1.0 KiB
C
54 lines
1.0 KiB
C
#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#define MEMBLK 1024
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int main(int argc, char **argv)
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{
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unsigned char block[4];
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unsigned int csum;
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int fd_i;
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FILE *fd_o;
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struct stat fileinfo;
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unsigned int i;
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if (argc != 3) {
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printf("usage: %s binfile hexfile\n", argv[0]);
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return -1;
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}
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if ((fd_i = open(argv[1], O_RDONLY)) == -1 || fstat(fd_i, &fileinfo) == -1) {
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printf("Couldn't open file\n");
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return -1;
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}
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printf("size: %u bytes\n", fileinfo.st_size);
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if ((fd_o = fopen(argv[2], "w")) == NULL) {
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printf("invalid outfile\n");
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return -1;
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}
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for (i=0; i<fileinfo.st_size; i+=4) {
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read(fd_i, (void*)block, 4);
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csum = 0x04+((i/4)>>8)+((i/4)&0xff)+block[3]+block[2]+block[1]+block[0];
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csum &= 0xff;
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csum = (~csum+1)&0xff;
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fprintf(fd_o, ":04%.4X00%.2X%.2X%.2X%.2X%.2X\n", i/4, block[3],block[2],block[1],block[0],csum);
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}
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fprintf(fd_o, ":00000001FF\n");
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fclose(fd_o);
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close(fd_i);
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return 0;
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}
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