-/* fdformat.c - Low-level formats a floppy disk - Werner Almesberger */
-
-/* 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
- * - added Native Language Support
- * 1999-03-20 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- * - more i18n/nls translatable strings marked
- *
+/* vi: set sw=4 ts=4: */
+/* fdformat.c - Low-level formats a floppy disk - Werner Almesberger
* 5 July 2003 -- modified for Busybox by Erik Andersen
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
*/
+//config:config FDFORMAT
+//config: bool "fdformat (4.5 kb)"
+//config: default y
+//config: select PLATFORM_LINUX
+//config: help
+//config: fdformat is used to low-level format a floppy disk.
+
+//applet:IF_FDFORMAT(APPLET(fdformat, BB_DIR_USR_SBIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_FDFORMAT) += fdformat.o
+
+//usage:#define fdformat_trivial_usage
+//usage: "[-n] DEVICE"
+//usage:#define fdformat_full_usage "\n\n"
+//usage: "Format floppy disk\n"
+//usage: "\n -n Don't verify after format"
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include "busybox.h"
+#include "libbb.h"
/* Stuff extracted from linux/fd.h */
unsigned int device,head,track;
};
#define FDFMTBEG _IO(2,0x47)
-#define FDFMTTRK _IOW(2,0x48, struct format_descr)
+#define FDFMTTRK _IOW(2,0x48, struct format_descr)
#define FDFMTEND _IO(2,0x49)
#define FDGETPRM _IOR(2, 0x04, struct floppy_struct)
#define FD_FILL_BYTE 0xF6 /* format fill byte. */
-static void print_and_flush(const char * __restrict format, ...)
-{
- va_list arg;
-
- va_start(arg, format);
- bb_vfprintf(stdout, format, arg);
- va_end(arg);
- bb_xfflush_stdout();
-}
-
-static void bb_xioctl(int fd, int request, void *argp, const char *string)
-{
- if (ioctl (fd, request, argp) < 0) {
- bb_perror_msg_and_die(string);
- }
-}
-
-int fdformat_main(int argc,char **argv)
+int fdformat_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int fdformat_main(int argc UNUSED_PARAM, char **argv)
{
int fd, n, cyl, read_bytes, verify;
unsigned char *data;
struct floppy_struct param;
struct format_descr descr;
- if (argc < 2) {
- bb_show_usage();
- }
- verify = !bb_getopt_ulflags(argc, argv, "n");
+ opt_complementary = "=1"; /* must have 1 param */
+ verify = !getopt32(argv, "n");
argv += optind;
- /* R_OK is needed for verifying */
- if (stat(*argv,&st) < 0 || access(*argv,W_OK | R_OK ) < 0) {
- bb_perror_msg_and_die(*argv);
- }
+ xstat(*argv, &st);
if (!S_ISBLK(st.st_mode)) {
- bb_error_msg_and_die("%s: not a block device",*argv);
+ bb_error_msg_and_die("%s: not a block device", *argv);
/* do not test major - perhaps this was an USB floppy */
}
-
/* O_RDWR for formatting and verifying */
- fd = bb_xopen(*argv,O_RDWR );
+ fd = xopen(*argv, O_RDWR);
- bb_xioctl(fd, FDGETPRM, ¶m, "FDGETPRM");/*original message was: "Could not determine current format type" */
+ /* original message was: "Could not determine current format type" */
+ xioctl(fd, FDGETPRM, ¶m);
- print_and_flush("%s-sided, %d tracks, %d sec/track. Total capacity %d kB.\n",
+ printf("%s-sided, %u tracks, %u sec/track. Total capacity %d kB\n",
(param.head == 2) ? "Double" : "Single",
param.track, param.sect, param.size >> 1);
/* FORMAT */
- print_and_flush("Formatting ... ", NULL);
- bb_xioctl(fd, FDFMTBEG,NULL,"FDFMTBEG");
+ printf("Formatting... ");
+ xioctl(fd, FDFMTBEG, NULL);
/* n == track */
- for (n = 0; n < param.track; n++)
- {
- descr.head = 0;
- descr.track = n;
- bb_xioctl(fd, FDFMTTRK,&descr,"FDFMTTRK");
- print_and_flush("%3d\b\b\b", n);
- if (param.head == 2) {
- descr.head = 1;
- bb_xioctl(fd, FDFMTTRK,&descr,"FDFMTTRK");
- }
+ for (n = 0; n < param.track; n++) {
+ descr.head = 0;
+ descr.track = n;
+ xioctl(fd, FDFMTTRK, &descr);
+ printf("%3d\b\b\b", n);
+ if (param.head == 2) {
+ descr.head = 1;
+ xioctl(fd, FDFMTTRK, &descr);
+ }
}
- bb_xioctl(fd,FDFMTEND,NULL,"FDFMTEND");
- print_and_flush("done\n", NULL);
+ xioctl(fd, FDFMTEND, NULL);
+ puts("Done");
/* VERIFY */
- if(verify) {
+ if (verify) {
/* n == cyl_size */
n = param.sect*param.head*512;
data = xmalloc(n);
- print_and_flush("Verifying ... ", NULL);
+ printf("Verifying... ");
for (cyl = 0; cyl < param.track; cyl++) {
- print_and_flush("%3d\b\b\b", cyl);
- if((read_bytes = safe_read(fd,data,n))!= n ) {
- if(read_bytes < 0) {
- bb_perror_msg("Read: ");
- }
- bb_error_msg_and_die("Problem reading cylinder %d, expected %d, read %d", cyl, n, read_bytes);
+ printf("%3d\b\b\b", cyl);
+ read_bytes = safe_read(fd, data, n);
+ if (read_bytes != n) {
+ if (read_bytes < 0) {
+ bb_perror_msg(bb_msg_read_error);
+ }
+ bb_error_msg_and_die("problem reading cylinder %d, "
+ "expected %d, read %d", cyl, n, read_bytes);
+ // FIXME: maybe better seek & continue??
}
/* Check backwards so we don't need a counter */
- while(--read_bytes>=0) {
- if( data[read_bytes] != FD_FILL_BYTE) {
- print_and_flush("bad data in cyl %d\nContinuing ... ",cyl);
+ while (--read_bytes >= 0) {
+ if (data[read_bytes] != FD_FILL_BYTE) {
+ printf("bad data in cyl %d\nContinuing... ", cyl);
}
}
}
/* There is no point in freeing blocks at the end of a program, because
all of the program's space is given back to the system when the process
terminates.*/
-
+
if (ENABLE_FEATURE_CLEAN_UP) free(data);
-
- print_and_flush("done\n", NULL);
+
+ puts("Done");
}
if (ENABLE_FEATURE_CLEAN_UP) close(fd);
-
+
/* Don't bother closing. Exit does
* that, so we can save a few bytes */
return EXIT_SUCCESS;
projects / oweals / busybox.git / blobdiff