wok annotate syslinux/stuff/iso2exe/win32.c @ rev 18063

syslinux: fix iso2exe -u
author Pascal Bellard <pascal.bellard@slitaz.org>
date Mon May 18 10:09:16 2015 +0200 (2015-05-18)
parents ff85ea851c53
children dfbb5425d6ac
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@14268 87 static char buffer[512];
pascal@14268 88
pascal@14261 89 #define MODE_READ 0
pascal@14261 90 #define MODE_WRITE 1
pascal@14268 91 static int rdwrsector(int mode, int drive, unsigned long startingsector)
pascal@14261 92 {
pascal@14261 93 HANDLE hDevice;
pascal@14261 94 DWORD result;
pascal@14261 95 char devname[sizeof("\\\\.\\PhysicalDrive0")];
pascal@14261 96
pascal@14261 97 if (drive >= 128) {
pascal@14261 98 strcpy(devname, "\\\\.\\PhysicalDrive0");
pascal@14261 99 devname[17] += drive - 128;
pascal@14261 100 }
pascal@14261 101 else {
pascal@14261 102 strcpy(devname, "\\\\.\\A:");
pascal@14261 103 devname[4] += drive;
pascal@14261 104 }
pascal@14261 105 hDevice = CreateFile (devname, GENERIC_READ,
pascal@14261 106 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
pascal@14261 107 if (hDevice == INVALID_HANDLE_VALUE)
pascal@14261 108 return -1;
pascal@14261 109 SetFilePointer(hDevice, (startingsector*512), NULL, FILE_BEGIN);
pascal@14261 110 if (mode == MODE_READ) {
pascal@14268 111 if (!ReadFile(hDevice, buffer, 512, &result, NULL))
pascal@14261 112 result = -1;
pascal@14261 113 }
pascal@14261 114 else {
pascal@14268 115 if (!WriteFile(hDevice, buffer, 512, &result, NULL))
pascal@14261 116 result = -1;
pascal@14261 117 }
pascal@14261 118 CloseHandle(hDevice);
pascal@14261 119 return result;
pascal@14261 120 }
pascal@14261 121
pascal@14266 122 static int rawrite(unsigned long drive, char *isoFileName)
pascal@14261 123 {
pascal@14266 124 int fdiso, s, dev;
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@14268 130 for (s = 0;; s++) {
pascal@14264 131 int s, n = read(fdiso, buffer, sizeof(buffer));
pascal@14261 132 if (n <= 0) break;
pascal@14268 133 rdwrsector(MODE_WRITE, dev, s);
pascal@14261 134 }
pascal@14261 135 close(fdiso);
pascal@14266 136 return dev;
pascal@14261 137 }
pascal@14261 138
pascal@14261 139 static unsigned long drives(void)
pascal@14261 140 {
pascal@14261 141 int i, mask, result;
pascal@14268 142
pascal@14261 143 for (i = result = 0, mask = 1; i < 8; i++, mask <<= 1) {
pascal@14268 144 if (rdwrsector(MODE_READ, i+128, 0) != -1)
pascal@14261 145 result |= mask;
pascal@14261 146 }
pascal@14261 147 return result;
pascal@14261 148 }
pascal@14261 149
pascal@14261 150 static void writefloppy(char *isoFileName)
pascal@14261 151 {
pascal@14261 152 int i, n, fd;
pascal@14261 153
pascal@14261 154 buffer[BOOTSTRAP_SECTOR_COUNT_OFFSET] = 0;
pascal@14261 155 fd = open(isoFileName, O_RDONLY|O_BINARY);
pascal@14261 156 if (fd != -1) {
pascal@14261 157 read(fd, buffer, sizeof(buffer));
pascal@14261 158 n = buffer[BOOTSTRAP_SECTOR_COUNT_OFFSET];
pascal@14261 159 if (n != 0 &&
pascal@14264 160 lseek(fd, * (unsigned short *) (buffer + 66) - (512 * n),
pascal@14261 161 SEEK_SET) != -1) {
pascal@14268 162 for (i = 0; i <= n; i++) {
pascal@14261 163 if (i == 1) strncpy(buffer, isoFileName, 512);
pascal@14268 164 else read(fd, buffer, 512);
pascal@14268 165 rdwrsector(MODE_WRITE, 0, i);
pascal@14261 166 }
pascal@14261 167 }
pascal@14261 168 close(fd);
pascal@14261 169 }
pascal@14261 170 }
pascal@14261 171
pascal@14261 172 //TODO #define VCPI_LINUX_LOADER The DOS/EXE loader can boot in VM86 using VCPI API
pascal@14261 173 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
pascal@14261 174 LPSTR lpCmdLine, int nCmdShow)
pascal@14261 175 {
pascal@14261 176 char isoFileName[MAX_PATH];
pascal@14261 177 char header[32];
pascal@14261 178 int fd;
pascal@14261 179 int usbkeyicon = MB_ICONASTERISK;
pascal@14261 180 char *usbkeymsg = "You can either:\n\n"
pascal@14261 181 "- create a SliTaz USB boot key or a boot memory card.\n"
pascal@14261 182 " (note that this will be read only like a CDROM.\n"
pascal@14261 183 " The Slitaz utility 'tazusb' can be used later to create\n"
pascal@14261 184 " a true read/write USB key).\n\n"
pascal@14261 185 "- create a SliTaz bootstrap floppy for the ISO image\n"
pascal@14261 186 " on the hard disk.\n"
pascal@14261 187 "\nDo you want to create a boot key now ?";
pascal@14261 188
pascal@14261 189 GetModuleFileName(hInstance, isoFileName, MAX_PATH);
pascal@14261 190 if (!iswinnt()) {
pascal@14261 191 #ifdef VCPI_LINUX_LOADER
pascal@14261 192 exec16bits(isoFileName);
pascal@14261 193 #else
pascal@14261 194 MessageBox(NULL,"No support for Win9x yet.\n"
pascal@14261 195 "Retry in DOS mode without emm386.\n",
pascal@14261 196 "Sorry", MB_OK|MB_ICONERROR);
pascal@14261 197 exit(1);
pascal@14261 198 #endif
pascal@14261 199 }
pascal@14261 200 if (!ishybrid(isoFileName)) {
pascal@14261 201 if (MessageBox(NULL,"Not an isolinux hybrid ISO.\n"
pascal@14261 202 "This ISO image will not boot\n"
paul@14263 203 "from the media that you create !",
pascal@14261 204 "Will not boot !",
pascal@14261 205 MB_OKCANCEL|MB_ICONWARNING) == IDCANCEL)
pascal@14261 206 exit(0);
pascal@14261 207 }
pascal@14261 208 header[BOOTSTRAP_SECTOR_COUNT_OFFSET] = 0;
pascal@14261 209 fd = open(isoFileName, O_RDONLY|O_BINARY);
pascal@14261 210 if (fd != -1) {
pascal@14261 211 read(fd, header, sizeof(header));
pascal@14261 212 close(fd);
pascal@14261 213 }
pascal@14261 214 if (header[BOOTSTRAP_SECTOR_COUNT_OFFSET] == 0) { // No floppy bootstrap available
pascal@14261 215 usbkeyicon = MB_ICONQUESTION;
pascal@14261 216 usbkeymsg = "Do you want to create a boot key ?";
pascal@14261 217 }
pascal@14261 218 if (MessageBox(NULL,usbkeymsg, "Create a boot stick ?",
pascal@14261 219 MB_YESNO|usbkeyicon) == IDYES) {
pascal@14261 220 unsigned long base, new;
pascal@14261 221 int retry;
pascal@14261 222
pascal@14261 223 if (MessageBox(NULL,"Step 1: unplug the USB stick.",
pascal@14261 224 "Drive detection 1/2",
pascal@14261 225 MB_OKCANCEL|MB_ICONEXCLAMATION) == IDCANCEL)
pascal@14261 226 exit(0);
pascal@14261 227 base = drives();
pascal@14261 228 if (MessageBox(NULL,"Step 2: plug the USB stick in.",
pascal@14261 229 "Drive detection 2/2",
pascal@14261 230 MB_OKCANCEL|MB_ICONEXCLAMATION) == IDCANCEL)
pascal@14261 231 exit(0);
pascal@14261 232 retry = 0;
pascal@14261 233 do {
pascal@14261 234 Sleep(1000); // ms
pascal@14261 235 new = drives();
pascal@14261 236 } while (new == base && retry++ < 10);
pascal@14261 237 if (new == base) {
pascal@14261 238 MessageBox(NULL,"No USB stick found.","Sorry",
pascal@14261 239 MB_OK|MB_ICONERROR);
pascal@14261 240 }
pascal@14266 241 else {
pascal@14266 242 char *msg = "(hd0) is up to date.";
pascal@14266 243 msg[3] += rawrite(base ^ new, isoFileName) - 128;
pascal@14266 244 MessageBox(NULL,msg,"Finished",MB_OK);
pascal@14266 245 }
pascal@14261 246 }
pascal@14266 247 else if (header[BOOTSTRAP_SECTOR_COUNT_OFFSET] != 0 &&
pascal@14261 248 MessageBox(NULL,"Do you want to create a bootstrap floppy ?",
pascal@14261 249 "Create a bootstrap floppy ?",
pascal@14261 250 MB_YESNO|MB_ICONQUESTION) == IDYES &&
pascal@14261 251 MessageBox(NULL,"Insert a floppy disk in drive now",
pascal@14261 252 "Insert floppy",
pascal@14261 253 MB_OKCANCEL|MB_ICONEXCLAMATION) != IDCANCEL) {
pascal@14261 254
pascal@14261 255 // Create a 9k bootstrap with vfat, ext2 & ntfs drivers
pascal@14261 256 // to boot the ISO image on hard disk
pascal@14261 257 writefloppy(isoFileName);
pascal@14266 258 MessageBox(NULL,"The bootstrap floppy is up to date.",
pascal@14266 259 "Finished",MB_OK);
pascal@14261 260 }
pascal@14261 261 }