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/*
* mlabel.c
* Make an MSDOS volume label
*/
#include "sysincludes.h"
#include "msdos.h"
#include "mainloop.h"
#include "vfat.h"
#include "mtools.h"
#include "nameclash.h"
char *label_name(char *filename, int verbose,
int *mangled, char *ans)
{
int len;
int i;
int have_lower, have_upper;
strcpy(ans," ");
len = strlen(filename);
if(len > 11){
*mangled = 1;
len = 11;
} else
*mangled = 0;
strncpy(ans, filename, len);
have_lower = have_upper = 0;
for(i=0; i<11; i++){
if(islower(ans[i]))
have_lower = 1;
if(isupper(ans[i]))
have_upper = 1;
ans[i] = toupper(ans[i]);
if(strchr("^+=/[]:,?*\\<>|\".", ans[i])){
*mangled = 1;
ans[i] = '~';
}
}
if (have_lower && have_upper)
*mangled = 1;
return ans;
}
struct directory *labelit(char *dosname,
char *longname,
void *arg0,
struct directory *dir)
{
time_t now;
/* find out current time */
time(&now);
mk_entry(dosname, 0x8, 0, 0, now, dir);
return dir;
}
static void usage(void)
{
fprintf(stderr, "Mtools version %s, dated %s\n",
mversion, mdate);
fprintf(stderr, "Usage: %s [-vscV] drive:\n", progname);
exit(1);
}
void mlabel(int argc, char **argv, int type)
{
int entry, verbose, clear, interactive, show, open_mode;
struct directory dir;
int result=0;
char longname[VBUFSIZE],filename[VBUFSIZE];
char shortname[13];
ClashHandling_t ch;
struct MainParam_t mp;
Stream_t *RootDir;
int c;
int mangled;
init_clash_handling(&ch);
ch.name_converter = label_name;
ch.ignore_entry = -2;
verbose = 0;
clear = 0;
show = 0;
while ((c = getopt(argc, argv, "vcs")) != EOF) {
switch (c) {
case 'v':
verbose = 1;
break;
case 'c':
clear = 1;
break;
case 's':
show = 1;
break;
default:
usage();
}
}
if (argc - optind != 1 ||
!argv[optind][0] || argv[optind][1] != ':')
usage();
init_mp(&mp);
get_name(argv[optind], filename, mp.mcwd);
interactive = !filename[0] && !show && !clear;
if (filename[0] || clear || interactive)
open_mode = O_RDWR;
else
open_mode = O_RDONLY;
RootDir = open_subdir(&mp, argv[optind], open_mode, 0, 0);
if(!RootDir && open_mode == O_RDWR && !clear && !filename[0] &&
( errno == EACCES || errno == EPERM) ) {
show = 1;
interactive = 0;
RootDir = open_subdir(&mp, argv[optind], O_RDONLY, 0, 0);
}
if(!RootDir) {
fprintf(stderr, "%s: Cannot initialize drive\n", argv[0]);
exit(1);
}
entry = 0;
vfat_lookup(RootDir, &dir, &entry, 0, 0, ACCEPT_LABEL | MATCH_ANY,
NULL, shortname, longname);
if(show || interactive){
if(entry == -1)
printf(" Volume has no label\n");
else if (*longname)
printf(" Volume label is %s (abbr=%s)\n",
longname, shortname);
else
printf(" Volume label is %s\n", shortname);
}
/* ask for new label */
if(interactive){
fprintf(stderr,"Enter the new volume label : ");
fgets(filename, VBUFSIZE, stdin);
if(filename[0])
filename[strlen(filename)-1] = '\0';
}
if(!show && entry != -1){
/* if we have a label, wipe it out before putting new one */
if(interactive && filename[0] == '\0')
if(ask_confirmation("Delete volume label (y/n): ",0,0)){
FREE(&RootDir);
exit(0);
}
dir.name[0] = DELMARK;
dir.attr = 0; /* for old mlabel */
dir_write(RootDir, entry-1, &dir);
}
if (!show && filename[0] != '\0') {
ch.ignore_entry = 1;
result = mwrite_one(RootDir,filename,0,labelit,NULL,&ch) ?
0 : 1;
}
if(!show){
struct bootsector boot;
Stream_t *Fs = GetFs(RootDir);
if(!filename[0])
strncpy(shortname, "NO NAME ",11);
else
label_name(filename, verbose, &mangled, shortname);
if(force_read(Fs,(char *)&boot,0,sizeof(boot)) ==
sizeof(boot) &&
boot.descr >= 0xf0 &&
boot.ext.old.dos4 == 0x29 &&
_WORD(boot.fatlen)){
strncpy(boot.ext.old.label, shortname, 11);
force_write(Fs, (char *)&boot, 0, sizeof(boot));
}
}
FREE(&RootDir);
exit(result);
}
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