SliTaz Repositories

     1.1 --- a/syslinux/stuff/iso2exe/iso2exe.c	Tue Mar 11 15:44:47 2014 +0000
     1.2 +++ b/syslinux/stuff/iso2exe/iso2exe.c	Wed Dec 17 12:25:20 2014 +0100
     1.3 @@ -1,6 +1,11 @@
     1.4 +#ifdef __TURBOC__
     1.5 +#include <io.h>
     1.6 +#endif
     1.7  #include <sys/types.h>
     1.8  #include <fcntl.h>
     1.9  #include <stdio.h>
    1.10 +#include <stdlib.h>
    1.11 +#include <string.h>
    1.12  #ifdef WIN32
    1.13  #include <windows.h>
    1.14  #endif
    1.15 @@ -10,109 +15,111 @@
    1.16  static char tazlitoinfo[10*1024];
    1.17  #define buffer tazlitoinfo
    1.18  #define BUFFERSZ 2048
    1.19 +#define WORD(n)	* (unsigned short *) (n)
    1.20 +#define LONG(n)	* (unsigned long *)  (n)
    1.21  
    1.22  static void readsector(unsigned long sector)
    1.23  {
    1.24  	if (lseek(fd, sector * BUFFERSZ, SEEK_SET) == -1 ||
    1.25  	    read(fd, buffer, BUFFERSZ) != BUFFERSZ) {
    1.26 -		puts("Read sector failure.\n");
    1.27 +		puts(bootiso+READSECTORERR);
    1.28  		exit(1);
    1.29  	}
    1.30  }
    1.31  
    1.32 -static char *install(char *filename)
    1.33 +static unsigned install(char *filename)
    1.34  {
    1.35  #define heads 64
    1.36  #define sectors 32
    1.37  #define partition 446
    1.38 -#define trksz (512 * heads * sectors)
    1.39 +#define trksz (512UL * heads * sectors)
    1.40  	unsigned long size, catalog, lba;
    1.41  	int cylinders, i, j, isohybrid;
    1.42  	unsigned n;
    1.43  #ifndef WIN32
    1.44 -	char *bootiso;
    1.45  	for (bootiso = (char *) install;
    1.46 -	     bootiso[0] != 'M' || bootiso[1] != 'Z' || bootiso[2] != 0xEB;
    1.47 -	     bootiso++) if (bootiso < (char *) install) return "No bootiso data.\n";
    1.48 +	     bootiso[0] != 'M' || bootiso[1] != 'Z' || bootiso[2] != '\xEB';
    1.49 +	     bootiso++) if (bootiso < (char *) install) {
    1.50 +		bootiso = "No bootiso data";
    1.51 +		return 0;
    1.52 +	}
    1.53  #endif
    1.54  	if (!filename)
    1.55 -		return "Usage: isohybrid.exe file.iso [--forced]\n";
    1.56 +		return USAGE;
    1.57  	fd = open(filename,O_RDWR|O_BINARY);
    1.58  	if (fd == -1)
    1.59 -		return "Can't open rw the iso file.\n";
    1.60 +		return OPENERR;
    1.61  
    1.62  	if (forced == 0) {
    1.63  		status = 2;
    1.64 -		// Install hybridiso boot sector
    1.65 +		/* Install hybridiso boot sector */
    1.66  		readsector(17UL);
    1.67 -		if (strncmp(buffer+7, "EL TORITO SPECIFICATION", 23))
    1.68 -			return "No EL TORITO signature.\n";
    1.69 -		catalog = * (unsigned long *) (buffer + 71);
    1.70 +		if (strncmp(buffer+7, bootiso+ELTORITOERR+ELTORITOOFS, 23))
    1.71 +			return ELTORITOERR;
    1.72 +		catalog = LONG(buffer + 71);
    1.73  		readsector(catalog);
    1.74 -		if (* (unsigned long *) buffer != 1 || 
    1.75 -		    * (unsigned long *) (buffer + 30) != 0x88AA55)
    1.76 -		    	return "Invalid boot catalog.\n";
    1.77 -		lba = * (unsigned long *) (buffer + 40);
    1.78 +		if (LONG(buffer) != 1 || LONG(buffer + 30) != 0x88AA55UL)
    1.79 +		    	return CATALOGERR;
    1.80 +		lba = LONG(buffer + 40);
    1.81  		readsector(lba);
    1.82 -		if (* (unsigned long *) (buffer + 64) != 1886961915)
    1.83 -			return "No isolinux.bin hybrid signature.\n";
    1.84 +		if (LONG(buffer + 64) != 1886961915UL)
    1.85 +			return HYBRIDERR;
    1.86  		isohybrid = bootiso[69] * 512;
    1.87 -		* (unsigned long *)  &bootiso[isohybrid + 432] = lba * 4;
    1.88 -		* (unsigned long *)  &bootiso[isohybrid + 440] = rand();
    1.89 -		* (unsigned long *)  &bootiso[isohybrid + partition] = 0x10080;
    1.90 -		* (unsigned short *) &bootiso[isohybrid + 510] = 0xAA55;
    1.91 +		LONG(bootiso + isohybrid + 432) = lba * 4;
    1.92 +		LONG(bootiso + isohybrid + 440) = rand();
    1.93 +		LONG(bootiso + isohybrid + partition) = 0x10080UL;
    1.94 +		WORD(bootiso + isohybrid + 510) = 0xAA55U;
    1.95  		size = lseek(fd, 0UL, SEEK_END);
    1.96  		cylinders = (size + trksz - 1) / trksz;
    1.97 -		bootiso[isohybrid + partition + 4] = 23; // "Windows hidden IFS"
    1.98 +		bootiso[isohybrid + partition + 4] = 23; /* "Windows hidden IFS" */
    1.99  		bootiso[isohybrid + partition + 5] = heads - 1;
   1.100  		bootiso[isohybrid + partition + 6] = (((cylinders - 1) & 0x300) >> 2) + sectors;
   1.101  		bootiso[isohybrid + partition + 7] = (cylinders - 1) & 0xFF;
   1.102 -		* (unsigned long *) &bootiso[isohybrid + partition + 8] = 0;
   1.103 -		* (unsigned long *) &bootiso[isohybrid + partition + 12] = cylinders * sectors * heads;
   1.104 +		LONG(bootiso + isohybrid + partition + 8) = 0;
   1.105 +		LONG(bootiso + isohybrid + partition + 12) = cylinders * sectors * heads;
   1.106  
   1.107 -		// Copy the partition table
   1.108 +		/* Copy the partition table */
   1.109  		memcpy(bootiso + 0x1BE, bootiso + isohybrid + 0x1BE, 66);
   1.110  	}
   1.111  
   1.112 -	// Install iso2exe boot sector
   1.113 -	* (unsigned short *) (bootiso + 26) = rand();
   1.114 +	/* Install iso2exe boot sector */
   1.115 +	WORD(bootiso + 26) = rand();
   1.116  
   1.117 -	// read tazlito flavor data
   1.118 +	/* read tazlito flavor data */
   1.119  	lseek(fd, 1024UL, SEEK_SET);
   1.120  	read(fd, tazlitoinfo, sizeof(tazlitoinfo));
   1.121  
   1.122 -	// Update iso image
   1.123 +	/* Update iso image */
   1.124  	n = (bootiso[69] + 1) * 512;
   1.125  	lseek(fd, 0UL, SEEK_SET);
   1.126 -	write(fd, bootiso, n); // EXE/PE + isohybrid mbr
   1.127 +	write(fd, bootiso, n); /* EXE/PE + isohybrid mbr */
   1.128  	write(fd, tazlitoinfo, ((0x8000U - BOOTISOSZ) > sizeof(tazlitoinfo)) 
   1.129  		? sizeof(tazlitoinfo) : (0x8000U - BOOTISOSZ));
   1.130 -	write(fd, bootiso + n, BOOTISOSZ - n); // COM + rootfs + EXE/DOS 
   1.131 +	write(fd, bootiso + n, BOOTISOSZ - n); /* COM + rootfs + EXE/DOS */
   1.132  
   1.133 -	// Compute the checksum
   1.134 +	/* Compute the checksum */
   1.135  	lseek(fd, 0UL, SEEK_SET);
   1.136  	for (i = 66, n = 0, j = 0; j < 16; j++, i = 0) {
   1.137  		if (read(fd, buffer, BUFFERSZ) != BUFFERSZ)
   1.138  			goto nochksum;
   1.139  		for (; i < BUFFERSZ; i += 2)
   1.140 -			n += * (unsigned short *) (buffer + i);
   1.141 +			n += WORD(buffer + i);
   1.142  	}
   1.143 -	* (unsigned short *) (bootiso + 64) = -n;
   1.144 +	WORD(bootiso + 64) = -n;
   1.145  	lseek(fd, 0UL, SEEK_SET);
   1.146  	write(fd, bootiso, 512);
   1.147  nochksum:
   1.148  	close(fd);
   1.149  	status = 0;
   1.150 -	return "Now you can create a USB key with your .iso file.\n"
   1.151 -	       "Simply rename it to a .exe file and run it.\n";
   1.152 +	return SUCCESSMSG;
   1.153  }
   1.154  
   1.155  int main(int argc, char *argv[])
   1.156  {
   1.157  	forced = (argc > 2);
   1.158 -	puts(install(argv[1]));
   1.159 +	puts(bootiso + install(argv[1]));
   1.160  	if (status > 1)
   1.161 -		puts("You can add --forced to proceed anayway");
   1.162 +		puts(bootiso + FORCEMSG);
   1.163  #ifdef WIN32
   1.164  	Sleep(2000);
   1.165  #endif