130 lines
2.7 KiB
C
Executable file
130 lines
2.7 KiB
C
Executable file
/*
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* mcat.c
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* Same thing as cat /dev/fd0 or cat file >/dev/fd0
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* Something, that isn't possible with floppyd anymore.
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*/
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#include "sysincludes.h"
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#include "msdos.h"
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#include "mtools.h"
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#include "mainloop.h"
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#include "fsP.h"
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#include "xdf_io.h"
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#include "floppyd_io.h"
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#include "plain_io.h"
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void usage(void)
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{
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fprintf(stderr, "Mtools version %s, dated %s\n",
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mversion, mdate);
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fprintf(stderr, "Usage: mcat [-w] device\n");
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fprintf(stderr, " -w write on device else read\n");
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exit(1);
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}
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#define BUF_SIZE 16000
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void mcat(int argc, char **argv, int type)
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{
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struct device *dev;
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struct device out_dev;
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char *drive, name[EXPAND_BUF];
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char errmsg[200];
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Stream_t *Stream;
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char buf[BUF_SIZE];
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mt_off_t address = 0;
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char mode = O_RDONLY;
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int optindex = 1;
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size_t len;
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noPrivileges = 1;
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if (argc < 2) {
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usage();
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}
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if (argv[1][0] == '-') {
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if (argv[1][1] != 'w') {
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usage();
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}
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mode = O_WRONLY;
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optindex++;
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}
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if (argc - optindex < 1)
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usage();
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if (skip_drive(argv[optindex]) == argv[optindex])
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usage();
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drive = get_drive(argv[optindex], NULL);
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/* check out a drive whose letter and parameters match */
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sprintf(errmsg, "Drive '%s:' not supported", drive);
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Stream = NULL;
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for (dev=devices; dev->name; dev++) {
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FREE(&Stream);
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if (strcmp(dev->drive, drive) != 0)
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continue;
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out_dev = *dev;
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expand(dev->name,name);
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#ifdef USING_NEW_VOLD
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strcpy(name, getVoldName(dev, name));
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#endif
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Stream = 0;
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#ifdef USE_XDF
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Stream = XdfOpen(&out_dev, name, mode, errmsg, 0);
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if(Stream)
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out_dev.use_2m = 0x7f;
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#endif
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#ifdef USE_FLOPPYD
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if(!Stream)
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Stream = FloppydOpen(&out_dev, dev, name,
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mode, errmsg, 0, 1);
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#endif
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if (!Stream)
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Stream = SimpleFileOpen(&out_dev, dev, name, mode,
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errmsg, 0, 1, 0);
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if( !Stream)
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continue;
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break;
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}
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/* print error msg if needed */
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if ( dev->drive == 0 ){
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FREE(&Stream);
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fprintf(stderr,"%s\n",errmsg);
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exit(1);
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}
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if (mode == O_WRONLY) {
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while ((len = fread(buf, 1, BUF_SIZE, stdin))
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== BUF_SIZE) {
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WRITES(Stream, buf, address, BUF_SIZE);
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address += BUF_SIZE;
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}
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if (len)
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WRITES(Stream, buf, address, len);
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} else {
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while ((len = READS(Stream, buf, address, BUF_SIZE))
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== BUF_SIZE) {
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fwrite(buf, 1, BUF_SIZE, stdout);
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address += BUF_SIZE;
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}
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if (len)
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fwrite(buf, 1, len, stdout);
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}
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FREE(&Stream);
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exit(0);
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}
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