diff options
Diffstat (limited to 'libmpio')
| -rw-r--r-- | libmpio/directory.c | 243 | ||||
| -rw-r--r-- | libmpio/directory.h | 6 | ||||
| -rw-r--r-- | libmpio/mpio.c | 27 |
3 files changed, 205 insertions, 71 deletions
diff --git a/libmpio/directory.c b/libmpio/directory.c index e532376..81447a0 100644 --- a/libmpio/directory.c +++ b/libmpio/directory.c @@ -1,6 +1,6 @@ /* * - * $Id: directory.c,v 1.4 2002/09/08 23:22:48 germeier Exp $ + * $Id: directory.c,v 1.5 2002/09/11 21:34:19 germeier Exp $ * * Library for USB MPIO-* * @@ -30,6 +30,41 @@ #include "io.h" #include "mpio.h" #include "directory.h" +#include <sys/time.h> + +/* the following function is copied from the linux kernel v2.4.18 + * file:/usr/src/linux/fs/fat/misc.c + * it was written by Werner Almesberger and Igor Zhbanov + * and is believed to be GPL + */ + +/* Linear day numbers of the respective 1sts in non-leap years. */ + +static int day_n[] = { 0,31,59,90,120,151,181,212,243,273,304,334,0,0,0,0 }; + /* JanFebMarApr May Jun Jul Aug Sep Oct Nov Dec */ + +/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */ + +int date_dos2unix(unsigned short time,unsigned short date) +{ + int month,year,secs; + struct timezone sys_tz; + struct timeval tv; + + gettimeofday(&tv, &sys_tz); + + /* first subtract and mask after that... Otherwise, if + date == 0, bad things happen */ + month = ((date >> 5) - 1) & 15; + year = date >> 9; + secs = (time & 31)*2+60*((time >> 5) & 63)+(time >> 11)*3600+86400* + ((date & 31)-1+day_n[month]+(year/4)+year*365-((year & 3) == 0 && + month < 2 ? 1 : 0)+3653); + /* days since 1.1.70 plus 80's leap day */ + secs += sys_tz.tz_minuteswest*60; + return secs; +} + /* directory operations */ BYTE * @@ -174,50 +209,58 @@ mpio_dentry_get_real(mpio_t *m, BYTE *buffer, if ((dentry->name[0] & 0x40) && (dentry->attr == 0x0f) && (dentry->start[0] == 0x00) && - (dentry->start[1] == 0x00)) { - num_slots = (mpio_dentry_get_size(m, buffer) / 0x20) - 1; - slots = num_slots - 1; - dentry++; - vfat++; - unicode = malloc(256); - uc = unicode; - fname = filename; - slot = (mpio_dir_slot_t *)buffer; - mpio_dentry_copy_from_slot(unicode + (26 * slots), slot); - slots--; - - while ((dentry->attr == 0x0f) && - (dentry->start[0] == 0x00) && - (dentry->start[1] == 0x00)) { - /* this/these are vfat slots */ - slot = (mpio_dir_slot_t *)dentry; - mpio_dentry_copy_from_slot((unicode + (26 * slots)), slot); + (dentry->start[1] == 0x00)) + { + num_slots = (mpio_dentry_get_size(m, buffer) / 0x20) - 1; + slots = num_slots - 1; dentry++; + vfat++; + unicode = malloc(256); + uc = unicode; + fname = filename; + slot = (mpio_dir_slot_t *)buffer; + mpio_dentry_copy_from_slot(unicode + (26 * slots), slot); slots--; - } - } - - if (vfat) { - ic = iconv_open("ASCII", "UNICODE"); - in = num_slots * 26; - out = num_slots * 13; - memset(fname, 0, filename_size); - iconv(ic, (char **)&uc, &in, (char **)&fname, &out); - iconv_close(ic); - free(unicode); - } else { - memcpy(filename_8_3, dentry->name, 8); - filename_8_3[0x08] = '.'; - memcpy(filename_8_3 + 0x09, dentry->ext, 3); - filename_8_3[0x0c] = 0; - - if (filename_size >= 12) { - snprintf(filename, 13, "%s", filename_8_3); - } else { - snprintf(filename, 12, "%s", "ERROR"); + + while ((dentry->attr == 0x0f) && + (dentry->start[0] == 0x00) && + (dentry->start[1] == 0x00)) + { + /* this/these are vfat slots */ + slot = (mpio_dir_slot_t *)dentry; + mpio_dentry_copy_from_slot((unicode + (26 * slots)), slot); + dentry++; + slots--; + } + } + + if (vfat) + { + ic = iconv_open("ASCII", "UNICODE"); + in = num_slots * 26; + out = num_slots * 13; + memset(fname, 0, filename_size); + iconv(ic, (char **)&uc, &in, (char **)&fname, &out); + iconv_close(ic); + free(unicode); + } + + memcpy(filename_8_3, dentry->name, 8); + filename_8_3[0x08] = '.'; + memcpy(filename_8_3 + 0x09, dentry->ext, 3); + filename_8_3[0x0c] = 0; + + if (!vfat) + { + if (filename_size >= 12) + { + snprintf(filename, 13, "%s", filename_8_3); + } else { + snprintf(filename, 12, "%s", "ERROR"); + } } - } +/* hexdumpn(0, filename_8_3, 13); */ date = (dentry->date[1] * 0x100) + dentry->date[0]; *year = date / 512 + 1980; @@ -235,7 +278,7 @@ mpio_dentry_get_real(mpio_t *m, BYTE *buffer, *fsize += dentry->size[1]; *fsize *= 0x100; *fsize += dentry->size[0]; - + return(((BYTE *)dentry) - buffer); } @@ -301,6 +344,28 @@ mpio_dentry_get_filesize(mpio_t *m, mpio_mem_t mem, BYTE *p) return fsize; } +long +mpio_dentry_get_time(mpio_t *m, mpio_mem_t mem, BYTE *p) +{ + int s; + mpio_dir_entry_t *dentry; + + s = mpio_dentry_get_size(m, p); + s -= DIR_ENTRY_SIZE ; + + dentry = (mpio_dir_entry_t *)p; + + while (s != 0) { + dentry++; + s -= DIR_ENTRY_SIZE ; + } + + + return date_dos2unix((dentry->time[0]+dentry->time[1]*0x100), + (dentry->date[0]+dentry->date[1]*0x100)); +} + + mpio_fatentry_t * mpio_dentry_get_startcluster(mpio_t *m, mpio_mem_t mem, BYTE *p) @@ -341,8 +406,7 @@ mpio_dentry_get_startcluster(mpio_t *m, mpio_mem_t mem, BYTE *p) int mpio_dentry_put(mpio_t *m, BYTE mem, BYTE *filename, int filename_size, - WORD year, BYTE month, BYTE day, - BYTE hour, BYTE minute, DWORD fsize, WORD ssector) + time_t date, DWORD fsize, WORD ssector) { BYTE *unicode = 0; BYTE *back, *fback; @@ -352,11 +416,21 @@ mpio_dentry_put(mpio_t *m, BYTE mem, int fin = 0, fout = 0; int count = 0; BYTE index; - + BYTE f_8_3[13]; + int i, j; BYTE *p; mpio_dir_entry_t *dentry; mpio_dir_slot_t *slot; + /* read and copied code from mtools-3.9.8/directory.c + * to make this one right + */ + struct tm *now; + time_t date2 = date; + unsigned char hour, min_hi, min_low, sec; + unsigned char year, month_hi, month_low, day; + + p = mpio_directory_open(m, mem); if (p) { while (*p != 0x00) @@ -416,23 +490,69 @@ mpio_dentry_put(mpio_t *m, BYTE mem, /* p+=0x20; */ dentry = (mpio_dir_entry_t *)slot; - memcpy(dentry->name,"AAAAAAAA",8); - memcpy(dentry->ext,"MP3",3); + + /* find uniq 8.3 filename */ + memset(f_8_3, 0x20, 12); + f_8_3[6]='~'; + f_8_3[7]='1'; + f_8_3[8]='.'; + f_8_3[12]=0x00; + + i=0; + while ((i<6) && (filename[i] != '.') && (i<(strlen(filename)))) + { + f_8_3[i] = toupper(filename[i]); + i++; + } + + j=i; + while((filename[j] != '.') && (j<(strlen(filename)))) + j++; + + j++; + i=9; + while ((i<12) && (j<(strlen(filename)))) + { + f_8_3[i] = toupper(filename[j]); + i++; + j++; + } + + while(mpio_dentry_find_name_8_3(m, mem, f_8_3)) + f_8_3[7]++; + + +/* memcpy(dentry->name,"AAAAAAAA",8); */ +/* memcpy(dentry->ext,"MP3",3); */ + +/* hexdumpn(0, f_8_3, 13); */ + + memcpy(dentry->name, f_8_3, 8); + memcpy(dentry->ext, f_8_3+9, 3); + dentry->attr = 0x20; dentry->lcase = 0x00; - dentry->ctime_ms = 0x00; - dentry->ctime[0] = 0x37; - dentry->ctime[1] = 0x7b; - dentry->cdate[0] = 0xfb; - dentry->cdate[1] = 0x2c; - dentry->adate[0] = 0xfd; - dentry->adate[1] = 0x2c; - dentry->reserved[0] = 0x00; - dentry->reserved[1] = 0x00; - dentry->time[0] = 0x38; - dentry->time[1] = 0x7b; - dentry->date[0] = 0xfb; - dentry->date[1] = 0x2c; + + + + /* read and copied code from mtools-3.9.8/directory.c + * to make this one right + */ + now = localtime(&date2); + dentry->ctime_ms = 0; + hour = now->tm_hour << 3; + min_hi = now->tm_min >> 3; + min_low = now->tm_min << 5; + sec = now->tm_sec / 2; + dentry->ctime[1] = dentry->time[1] = hour + min_hi; + dentry->ctime[0] = dentry->time[0] = min_low + sec; + year = (now->tm_year - 80) << 1; + month_hi = (now->tm_mon + 1) >> 3; + month_low = (now->tm_mon + 1) << 5; + day = now->tm_mday; + dentry -> adate[1] = dentry->cdate[1] = dentry->date[1] = year + month_hi; + dentry -> adate[0] = dentry->cdate[0] = dentry->date[0] = month_low + day; + dentry->size[0] = fsize & 0xff; dentry->size[1] = (fsize / 0x100) & 0xff; dentry->size[2] = (fsize / 0x10000) & 0xff; @@ -465,6 +585,7 @@ mpio_dentry_find_name_8_3(mpio_t *m, BYTE mem, BYTE *filename) fname_8_3, &wdummy, &bdummy, &bdummy, &bdummy, &bdummy, &ddummy); +/* debug ("s: %s\n", fname_8_3); */ if ((strcmp(fname_8_3, filename) == 0) && (strcmp(filename,fname_8_3) == 0)) { found = p; @@ -523,7 +644,7 @@ mpio_dentry_delete(mpio_t *m, BYTE mem, BYTE *filename) start = mpio_dentry_find_name_8_3(m, mem, filename); if (!start) { - debug("could not find file: %s\n", filename); + debugn(2, "could not find file: %s\n", filename); return 0; } diff --git a/libmpio/directory.h b/libmpio/directory.h index f1303ae..6982e8b 100644 --- a/libmpio/directory.h +++ b/libmpio/directory.h @@ -1,6 +1,6 @@ /* * - * $Id: directory.h,v 1.2 2002/09/03 21:20:53 germeier Exp $ + * $Id: directory.h,v 1.3 2002/09/11 21:34:19 germeier Exp $ * * Library for USB MPIO-* * @@ -27,6 +27,7 @@ #define _MPIO_DIRECTORY_H_ #include "fat.h" +#include "time.h" /* root directory operations */ int mpio_rootdir_read (mpio_t *, mpio_mem_t); @@ -37,11 +38,12 @@ int mpio_rootdir_format(mpio_t *, mpio_mem_t); int mpio_dentry_get_size(mpio_t *, BYTE *); int mpio_dentry_get_raw(mpio_t *, BYTE *, BYTE *, int); int mpio_dentry_put(mpio_t *, BYTE, BYTE *, int, - WORD, BYTE, BYTE, BYTE, BYTE, DWORD, WORD); + time_t, DWORD, WORD); BYTE * mpio_dentry_find_name_8_3(mpio_t *, BYTE, BYTE *); BYTE * mpio_dentry_find_name(mpio_t *, BYTE, BYTE *); int mpio_dentry_delete(mpio_t *, BYTE, BYTE *); int mpio_dentry_get_filesize(mpio_t *, mpio_mem_t, BYTE *); +long mpio_dentry_get_time(mpio_t *, mpio_mem_t, BYTE *); mpio_fatentry_t *mpio_dentry_get_startcluster(mpio_t *, mpio_mem_t, BYTE *); /* helper functions */ diff --git a/libmpio/mpio.c b/libmpio/mpio.c index 9354e64..765ae84 100644 --- a/libmpio/mpio.c +++ b/libmpio/mpio.c @@ -1,6 +1,6 @@ /* * - * $Id: mpio.c,v 1.11 2002/09/11 13:44:30 germeier Exp $ + * $Id: mpio.c,v 1.12 2002/09/11 21:34:19 germeier Exp $ * * Library for USB MPIO-* * @@ -30,6 +30,8 @@ #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> +#include <sys/types.h> +#include <utime.h> #include "defs.h" #include "debug.h" @@ -256,7 +258,8 @@ mpio_file_get(mpio_t *m, mpio_mem_t mem, BYTE *filename, int fd, towrite; BYTE *p; mpio_fatentry_t *f=0; - + struct utimbuf utbuf; + long mtime; DWORD filesize, fsize; BYTE abort = 0; @@ -272,10 +275,10 @@ mpio_file_get(mpio_t *m, mpio_mem_t mem, BYTE *filename, /* find file */ p = mpio_dentry_find_name(m, mem, filename); if (!p) - p = mpio_dentry_find_name_8_3(m, mem, filename); + p = mpio_dentry_find_name_8_3(m, mem, filename); - if (p) - f = mpio_dentry_get_startcluster(m, mem, p); + if (p) + f = mpio_dentry_get_startcluster(m, mem, p); if (f && p) { filesize=fsize=mpio_dentry_get_filesize(m, mem, p); @@ -308,10 +311,19 @@ mpio_file_get(mpio_t *m, mpio_mem_t mem, BYTE *filename, } while ((mpio_fatentry_next_entry(m, mem, f) && (filesize>0))); close (fd); + + /* read and copied code from mtools-3.9.8/mcopy.c + * to make this one right + */ + mtime=mpio_dentry_get_time(m, mem, p); + utbuf.actime = mtime; + utbuf.modtime = mtime; + utime(filename, &utbuf); + } else { debug("unable to locate the file: %s\n", filename); } - + return (fsize-filesize); } @@ -453,8 +465,7 @@ mpio_file_put(mpio_t *m, mpio_mem_t mem, BYTE *filename, /* FIXEME: add real values here!!! */ mpio_dentry_put(m, mem, filename, strlen(filename), - 2002, 8, 13, - 2, 12, fsize, start); + file_stat.st_ctime, fsize, start); /* this writes the FAT *and* the root directory */ mpio_fat_write(m, mem); |