mkfiles.c

mips架构的bootloader,99左右的版本 但源代码现在没人更新了

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#ifdef MSDOS
#include <process.h>
#endif

/*
 * This program is designed to permit read-only files to be downloaded
 * to a target system, and be opened by filename. It generates a file
 * that contains an array of structures, each structure contains, the
 * filename, start point, and size. It also generates a .cof file that
 * contains the actual file data. See the example examples/pmon/filetst.c
 * for description on how to use this feature.
 */

char cmd[1000];
char tempfile[] = "/tmp/mkXXXXXX";
char *leflag = "";
int vflag;

/*************************************************************
*  main(argc,argv)
*/
main(argc,argv)
int argc;
char *argv[];
{
int i,c,ifiles;
long offset;
struct stat st;
char *ofile;
off_t size;
FILE *ifp,*tfp;

ofile = 0;
ifiles = 0;
for (i=1;i<argc;i++) {
	if (argv[i][0] == '-') {
		if (argv[i][1] == 'l') leflag = "-l";
		else if (argv[i][1] == 'v') vflag = 1;
		else {
			fprintf(stderr,"%s: unknown switch\n",argv[i]);
			exit(1);
			}
		}
	else {
		if (! ofile) ofile = argv[i];
		else {
			ifiles = i;
			break;
			}
		}
	}

if (! ofile || ! ifiles )  {
	fprintf(stderr,"usage: mkfiles [-lv] ofile ifiles..\n");
	exit(1);
	}

mktemp(tempfile);
if (! *tempfile) {
	fprintf(stderr,"can't creat tempfile name\n");
	exit(1);
	}
tfp = fopen(tempfile,"w");
if (! tfp) {
	fprintf(stderr,"can't open tempfile %s\n",tempfile);
	exit(1);
	}
printf("#include <termio.h>\n");
printf("Ramfile _mfile[] = {\n");
offset = 0;
for (i=ifiles;i<argc;i++) {
	if (stat(argv[i],&st)) {
		fprintf(stderr,"can't stat %s\n",argv[i]);
		exit(1);
		}
	size = st.st_size;
	printf("\t{\"%s\",0,%d,%d,0},\n",argv[i],offset,size);
	offset += size;
	ifp = fopen(argv[i],"r");
	if (! ifp) {
		fprintf(stderr,"can't open %s\n",argv[i]);
		exit(1);
		}
	while ((c=getc(ifp)) != EOF) putc(c,tfp);
	fclose(ifp);
	}
fclose(tfp);
printf("\t{0}};\n");
sprintf(cmd,"gencoff %s -T%lx -o %s.cof %s",leflag,offset,ofile,tempfile);
if (vflag) fprintf(stderr,"%s\n",cmd);
if (system(cmd)) exit(1);
unlink(tempfile);
exit(0);
}

#ifdef MSDOS
/*************************************************************
*  system(cmd)
*/
system(cmd)
char *cmd;
{
int i;
char *p,*av[20];

for (i=0,p=strtok(cmd," ");p;p=strtok(0," ")) {
	if (i > 20) {
		fprintf(stderr,"system: too many args\n");
		exit(1);
		}
	av[i++] = p;
	}
av[i] = 0;
return _spawnvp(_P_WAIT,av[0],av);
}
#endif