wok annotate syslinux/stuff/iso2exe/win32.c @ rev 14266

syslinux/iso2exe: add partition table
author Pascal Bellard <pascal.bellard@slitaz.org>
date Mon Apr 01 17:47:04 2013 +0200 (2013-04-01)
parents bf8be127c60b
children 19258b949c1b
rev   line source
pascal@13974 1 #include <windows.h>
pascal@14261 2 #include <winnt.h>
pascal@14261 3 #include <sys/types.h>
pascal@14261 4 #include <sys/stat.h>
pascal@14261 5 #include <fcntl.h>
pascal@13972 6
pascal@14261 7 #define BOOTSTRAP_SECTOR_COUNT_OFFSET 28
pascal@14261 8
pascal@14261 9 static int fullread(int fd, char *p, int n)
pascal@13972 10 {
pascal@14261 11 int i, j;
pascal@14261 12 for (i = 0; n > 0; i += j, n -= j) {
pascal@14261 13 j = read(fd, p + i, n);
pascal@14261 14 if (j <= 0) break;
pascal@14261 15 }
pascal@14261 16 return i;
pascal@14264 17 #define read fullread
pascal@13972 18 }
pascal@14261 19
pascal@14261 20 static int fullwrite(int fd, char *p, int n)
pascal@14261 21 {
pascal@14261 22 int i, j;
pascal@14261 23 for (i = 0; n > 0; i += j, n -= j) {
pascal@14261 24 j = write(fd, p + i, n);
pascal@14261 25 if (j <= 0) break;
pascal@14261 26 }
pascal@14261 27 return i;
pascal@14264 28 #define write fullwrite
pascal@14261 29 }
pascal@14261 30
pascal@14261 31 static void exec16bits(char *isoFileName)
pascal@14261 32 {
pascal@14261 33 int fdiso, fdtmp, i;
pascal@14261 34 long buffer[512/4];
pascal@14261 35 char tmpFileName[MAX_PATH], *p;
pascal@14261 36
pascal@14261 37 strcpy(tmpFileName, isoFileName);
pascal@14261 38 p = strrchr(tmpFileName, '\\');
pascal@14261 39 if (!p++) p = tmpFileName;
pascal@14261 40 strcpy(p, "tazboot.exe");
pascal@14261 41 fdiso = open(isoFileName, O_RDONLY|O_BINARY);
pascal@14261 42 fdtmp = open(tmpFileName, O_WRONLY|O_BINARY|O_CREAT,0555);
pascal@14261 43 for (i = 0; i < 0x8000; i += sizeof(buffer)) {
pascal@14264 44 read(fdiso, (char *) buffer, sizeof(buffer));
pascal@14261 45 if (i == 0) buffer[15] = 0; // kill PE header
pascal@14264 46 write(fdtmp, (char *) buffer, sizeof(buffer));
pascal@14261 47 }
pascal@14261 48 close(fdiso);
pascal@14261 49 close(fdtmp);
pascal@14261 50 execl(tmpFileName, isoFileName);
pascal@14261 51 }
pascal@14261 52
pascal@14261 53 static int iswinnt(void)
pascal@14261 54 {
pascal@14261 55 OSVERSIONINFOA Version;
pascal@14261 56 Version.dwOSVersionInfoSize = sizeof(Version);
pascal@14261 57 return (GetVersionEx(&Version) &&
pascal@14261 58 Version.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS); // not Win9x
pascal@14261 59 }
pascal@14261 60
pascal@14261 61 static int ishybrid(char *isoFileName)
pascal@14261 62 {
pascal@14261 63 int fdiso;
pascal@14261 64 char buffer[2048];
pascal@14261 65 unsigned long magic = 0;
pascal@14261 66
pascal@14261 67 fdiso = open(isoFileName, O_RDONLY|O_BINARY);
pascal@14261 68 if (lseek(fdiso, 17 * 2048L, SEEK_SET) != -1 &&
pascal@14264 69 read(fdiso, buffer, 2048) == 2048 &&
pascal@14266 70 strncmp(buffer+7,"EL TORITO SPECIFICATION",23) == 0) {
pascal@14261 71 unsigned long lba = * (unsigned long *) (buffer + 71);
pascal@14261 72
pascal@14261 73 if (lseek(fdiso, lba * 2048L, SEEK_SET) != -1 &&
pascal@14264 74 read(fdiso, buffer, 2048) == 2048 &&
pascal@14261 75 * (unsigned long *) (buffer + 0) == 1 &&
pascal@14261 76 * (unsigned long *) (buffer + 30) == 0x88AA55) {
pascal@14261 77 lba = * (unsigned long *) (buffer + 40);
pascal@14261 78 if (lseek(fdiso, lba * 2048L, SEEK_SET) != -1 &&
pascal@14264 79 read(fdiso, buffer, 2048) == 2048)
pascal@14261 80 magic = * (unsigned long *) (buffer + 64);
pascal@14261 81 }
pascal@14261 82 }
pascal@14261 83 close(fdiso);
pascal@14261 84 return (magic == 1886961915);
pascal@14261 85 }
pascal@14261 86
pascal@14261 87 #define MODE_READ 0
pascal@14261 88 #define MODE_WRITE 1
pascal@14261 89 static int rdwrsector(int mode, int drive, unsigned long startingsector,
pascal@14261 90 unsigned long count, char *buffer)
pascal@14261 91 {
pascal@14261 92 HANDLE hDevice;
pascal@14261 93 DWORD result;
pascal@14261 94 char devname[sizeof("\\\\.\\PhysicalDrive0")];
pascal@14261 95
pascal@14261 96 if (drive >= 128) {
pascal@14261 97 strcpy(devname, "\\\\.\\PhysicalDrive0");
pascal@14261 98 devname[17] += drive - 128;
pascal@14261 99 }
pascal@14261 100 else {
pascal@14261 101 strcpy(devname, "\\\\.\\A:");
pascal@14261 102 devname[4] += drive;
pascal@14261 103 }
pascal@14261 104 hDevice = CreateFile (devname, GENERIC_READ,
pascal@14261 105 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
pascal@14261 106 if (hDevice == INVALID_HANDLE_VALUE)
pascal@14261 107 return -1;
pascal@14261 108 SetFilePointer(hDevice, (startingsector*512), NULL, FILE_BEGIN);
pascal@14261 109 if (mode == MODE_READ) {
pascal@14261 110 if (!ReadFile(hDevice, buffer, 512*count, &result, NULL))
pascal@14261 111 result = -1;
pascal@14261 112 }
pascal@14261 113 else {
pascal@14261 114 if (!WriteFile(hDevice, buffer, 512*count, &result, NULL))
pascal@14261 115 result = -1;
pascal@14261 116 }
pascal@14261 117 CloseHandle(hDevice);
pascal@14261 118 return result;
pascal@14261 119 }
pascal@14261 120
pascal@14266 121 static int rawrite(unsigned long drive, char *isoFileName)
pascal@14261 122 {
pascal@14266 123 int fdiso, s, dev;
pascal@14261 124 char buffer[2048];
pascal@14261 125
pascal@14261 126 if (drive == 0) return;
pascal@14261 127 for (dev = 128; (drive & 1) == 0; dev++)
pascal@14261 128 drive >>= 1;
pascal@14261 129 fdiso = open(isoFileName, O_RDONLY|O_BINARY);
pascal@14261 130 for (s = 0;;) {
pascal@14264 131 int s, n = read(fdiso, buffer, sizeof(buffer));
pascal@14261 132 if (n <= 0) break;
pascal@14261 133 n = (n+511)/512;
pascal@14261 134 rdwrsector(MODE_WRITE, dev, s, n, buffer);
pascal@14261 135 s += n;
pascal@14261 136 }
pascal@14261 137 close(fdiso);
pascal@14266 138 return dev;
pascal@14261 139 }
pascal@14261 140
pascal@14261 141 static unsigned long drives(void)
pascal@14261 142 {
pascal@14261 143 int i, mask, result;
pascal@14261 144 char buffer[512];
pascal@14261 145 for (i = result = 0, mask = 1; i < 8; i++, mask <<= 1) {
pascal@14261 146 if (rdwrsector(MODE_READ, i+128, 0, 1, buffer) != -1)
pascal@14261 147 result |= mask;
pascal@14261 148 }
pascal@14261 149 return result;
pascal@14261 150 }
pascal@14261 151
pascal@14261 152 static void writefloppy(char *isoFileName)
pascal@14261 153 {
pascal@14261 154 char buffer[512];
pascal@14261 155 int i, n, fd;
pascal@14261 156
pascal@14261 157 buffer[BOOTSTRAP_SECTOR_COUNT_OFFSET] = 0;
pascal@14261 158 fd = open(isoFileName, O_RDONLY|O_BINARY);
pascal@14261 159 if (fd != -1) {
pascal@14261 160 read(fd, buffer, sizeof(buffer));
pascal@14261 161 n = buffer[BOOTSTRAP_SECTOR_COUNT_OFFSET];
pascal@14261 162 if (n != 0 &&
pascal@14264 163 lseek(fd, * (unsigned short *) (buffer + 66) - (512 * n),
pascal@14261 164 SEEK_SET) != -1) {
pascal@14261 165 for (i = 0; i < n; i++) {
pascal@14264 166 read(fd, buffer, 512);
pascal@14261 167 if (i == 1) strncpy(buffer, isoFileName, 512);
pascal@14261 168 rdwrsector(MODE_WRITE, 0, i, 1, buffer);
pascal@14261 169 }
pascal@14261 170 }
pascal@14261 171 close(fd);
pascal@14261 172 }
pascal@14261 173 }
pascal@14261 174
pascal@14261 175 //TODO #define VCPI_LINUX_LOADER The DOS/EXE loader can boot in VM86 using VCPI API
pascal@14261 176 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
pascal@14261 177 LPSTR lpCmdLine, int nCmdShow)
pascal@14261 178 {
pascal@14261 179 char isoFileName[MAX_PATH];
pascal@14261 180 char header[32];
pascal@14261 181 int fd;
pascal@14261 182 int usbkeyicon = MB_ICONASTERISK;
pascal@14261 183 char *usbkeymsg = "You can either:\n\n"
pascal@14261 184 "- create a SliTaz USB boot key or a boot memory card.\n"
pascal@14261 185 " (note that this will be read only like a CDROM.\n"
pascal@14261 186 " The Slitaz utility 'tazusb' can be used later to create\n"
pascal@14261 187 " a true read/write USB key).\n\n"
pascal@14261 188 "- create a SliTaz bootstrap floppy for the ISO image\n"
pascal@14261 189 " on the hard disk.\n"
pascal@14261 190 "\nDo you want to create a boot key now ?";
pascal@14261 191
pascal@14261 192 GetModuleFileName(hInstance, isoFileName, MAX_PATH);
pascal@14261 193 if (!iswinnt()) {
pascal@14261 194 #ifdef VCPI_LINUX_LOADER
pascal@14261 195 exec16bits(isoFileName);
pascal@14261 196 #else
pascal@14261 197 MessageBox(NULL,"No support for Win9x yet.\n"
pascal@14261 198 "Retry in DOS mode without emm386.\n",
pascal@14261 199 "Sorry", MB_OK|MB_ICONERROR);
pascal@14261 200 exit(1);
pascal@14261 201 #endif
pascal@14261 202 }
pascal@14261 203 if (!ishybrid(isoFileName)) {
pascal@14261 204 if (MessageBox(NULL,"Not an isolinux hybrid ISO.\n"
pascal@14261 205 "This ISO image will not boot\n"
paul@14263 206 "from the media that you create !",
pascal@14261 207 "Will not boot !",
pascal@14261 208 MB_OKCANCEL|MB_ICONWARNING) == IDCANCEL)
pascal@14261 209 exit(0);
pascal@14261 210 }
pascal@14261 211 header[BOOTSTRAP_SECTOR_COUNT_OFFSET] = 0;
pascal@14261 212 fd = open(isoFileName, O_RDONLY|O_BINARY);
pascal@14261 213 if (fd != -1) {
pascal@14261 214 read(fd, header, sizeof(header));
pascal@14261 215 close(fd);
pascal@14261 216 }
pascal@14261 217 if (header[BOOTSTRAP_SECTOR_COUNT_OFFSET] == 0) { // No floppy bootstrap available
pascal@14261 218 usbkeyicon = MB_ICONQUESTION;
pascal@14261 219 usbkeymsg = "Do you want to create a boot key ?";
pascal@14261 220 }
pascal@14261 221 if (MessageBox(NULL,usbkeymsg, "Create a boot stick ?",
pascal@14261 222 MB_YESNO|usbkeyicon) == IDYES) {
pascal@14261 223 unsigned long base, new;
pascal@14261 224 int retry;
pascal@14261 225
pascal@14261 226 if (MessageBox(NULL,"Step 1: unplug the USB stick.",
pascal@14261 227 "Drive detection 1/2",
pascal@14261 228 MB_OKCANCEL|MB_ICONEXCLAMATION) == IDCANCEL)
pascal@14261 229 exit(0);
pascal@14261 230 base = drives();
pascal@14261 231 if (MessageBox(NULL,"Step 2: plug the USB stick in.",
pascal@14261 232 "Drive detection 2/2",
pascal@14261 233 MB_OKCANCEL|MB_ICONEXCLAMATION) == IDCANCEL)
pascal@14261 234 exit(0);
pascal@14261 235 retry = 0;
pascal@14261 236 do {
pascal@14261 237 Sleep(1000); // ms
pascal@14261 238 new = drives();
pascal@14261 239 } while (new == base && retry++ < 10);
pascal@14261 240 if (new == base) {
pascal@14261 241 MessageBox(NULL,"No USB stick found.","Sorry",
pascal@14261 242 MB_OK|MB_ICONERROR);
pascal@14261 243 }
pascal@14266 244 else {
pascal@14266 245 char *msg = "(hd0) is up to date.";
pascal@14266 246 msg[3] += rawrite(base ^ new, isoFileName) - 128;
pascal@14266 247 MessageBox(NULL,msg,"Finished",MB_OK);
pascal@14266 248 }
pascal@14261 249 }
pascal@14266 250 else if (header[BOOTSTRAP_SECTOR_COUNT_OFFSET] != 0 &&
pascal@14261 251 MessageBox(NULL,"Do you want to create a bootstrap floppy ?",
pascal@14261 252 "Create a bootstrap floppy ?",
pascal@14261 253 MB_YESNO|MB_ICONQUESTION) == IDYES &&
pascal@14261 254 MessageBox(NULL,"Insert a floppy disk in drive now",
pascal@14261 255 "Insert floppy",
pascal@14261 256 MB_OKCANCEL|MB_ICONEXCLAMATION) != IDCANCEL) {
pascal@14261 257
pascal@14261 258 // Create a 9k bootstrap with vfat, ext2 & ntfs drivers
pascal@14261 259 // to boot the ISO image on hard disk
pascal@14261 260 writefloppy(isoFileName);
pascal@14266 261 MessageBox(NULL,"The bootstrap floppy is up to date.",
pascal@14266 262 "Finished",MB_OK);
pascal@14261 263 }
pascal@14261 264 }