OS_Develop/FreeDOS
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apply changes made to stable in preparation for merge to stable (OW 1.8 compile fix and improved file copy routine)

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git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/branches/UNSTABLE@1481 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Kenneth J Davis 2009-07-10 22:22:43 +00:00
parent de81e8170c
commit cabdbf0fa9
1 changed files with 101 additions and 9 deletions
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110
sys/sys.c
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@ -32,7 +32,7 @@
#define FDCONFIG /* include support to configure FD kernel */
/* #define DRSYS */ /* SYS for Enhanced DR-DOS (OpenDOS enhancement Project) */
#define SYS_VERSION "v3.6a"
#define SYS_VERSION "v3.6c"
#define SYS_NAME "FreeDOS System Installer "
@ -204,7 +204,7 @@ char *getenv(const char *name)
BYTE pgm[] = "SYS";
#define SEC_SIZE 512
#define COPY_SIZE 0x4000
#define COPY_SIZE 0x4000
struct bootsectortype {
UBYTE bsJump[3];
@ -604,7 +604,7 @@ void initOptions(int argc, char *argv[], SYSOptions *opts)
sprintf(opts->srcDrive, "%c:", 'A' + getcurdrive());
if (srcarg)
{
int slen;
int slen;
/* set source path, reserving room to append filename */
if ( (argv[srcarg][1] == ':') /* || ((argv[srcarg][0]=='\\') && (argv[srcarg][1] == '\\'))*/ )
strncpy(opts->srcDrive, argv[srcarg], SYS_MAXPATH-13);
@ -900,7 +900,7 @@ void reset_drive(int DosDrive);
void truename(char far *dest, const char *src);
#pragma aux truename = \
"mov ah,0x60" \
"mov ah,0x60" \
"int 0x21" \
parm [es di] [si];
@ -1019,7 +1019,7 @@ int MyAbsReadWrite(int DosDrive, int count, ULONG sector, void *buffer,
unsigned getextdrivespace(void far *drivename, void *buf, unsigned buf_size);
#pragma aux getextdrivespace = \
"mov ax, 0x7303" \
"stc" \
"stc" \
"int 0x21" \
"sbb ax, ax" \
parm [es dx] [di] [cx] \
@ -1064,7 +1064,7 @@ BOOL haveLBA(void); /* return TRUE if we have LBA BIOS, FALSE otherwise */
"and cx, 1" \
"xchg cx, ax" \
"quit:" \
modify [bx cx] \
modify [bx cx dx] \
value [ax];
#else
@ -1504,7 +1504,7 @@ void put_boot(SYSOptions *opts)
if (opts->writeBS)
{
#ifdef DEBUG
printf("writing new bootsector to drive %c:\n", opts->dstDrive + 'A');
printf("Writing new bootsector to drive %c:\n", opts->dstDrive + 'A');
#endif
/* write newboot to a drive */
@ -1584,6 +1584,25 @@ BOOL check_space(COUNT drive, ULONG bytes)
BYTE copybuffer[COPY_SIZE];
/* allocate memory from DOS, return 0 on success, nonzero otherwise */
int alloc_dos_mem(ULONG memsize, UWORD *theseg)
{
#ifdef __TURBOC__
if (allocmem((unsigned)((memsize+15)>>4), theseg)==-1)
#else
unsigned dseg;
if (_dos_allocmem((unsigned)((memsize+15)>>4), &dseg)==0)
*theseg = (UWORD)dseg;
#endif
return 0; /* success */
return -1; /* failed to allocate memory */
}
#ifdef __TURBOC__
#define dos_freemem freemem
#else
#define dos_freemem _dos_freemem
#endif
/* copies file (path+filename specified by srcFile) to drive:\filename */
BOOL copy(const BYTE *source, COUNT drive, const BYTE * filename)
{
@ -1626,6 +1645,7 @@ BOOL copy(const BYTE *source, COUNT drive, const BYTE * filename)
return FALSE;
}
#if 0 /* simple copy loop, read chunk then write chunk, repeat until all data copied */
while ((ret = read(fdin, copybuffer, COPY_SIZE)) > 0)
{
if (write(fdout, copybuffer, ret) != ret)
@ -1633,14 +1653,86 @@ BOOL copy(const BYTE *source, COUNT drive, const BYTE * filename)
printf("Can't write %u bytes to %s\n", ret, dest);
close(fdout);
unlink(dest);
break;
return FALSE;
}
copied += ret;
}
#else /* read in whole file, then write out whole file */
{
ULONG filesize;
UWORD theseg;
BYTE far *buffer, far *bufptr;
UWORD offs;
unsigned chunk_size;
/* get length of file to copy, then allocate enough memory for whole file */
filesize = filelength(fdin);
if (alloc_dos_mem(filesize, &theseg)!=0)
{
printf("Not enough memory to buffer %lu bytes for %s\n", filesize, source);
return NULL;
}
bufptr = buffer = MK_FP(theseg, 0);
/* read in whole file, a chunk at a time; adjust size of last chunk to match remaining bytes */
chunk_size = (COPY_SIZE < filesize)?COPY_SIZE:(unsigned)filesize;
while ((ret = read(fdin, copybuffer, chunk_size)) > 0)
{
for (offs = 0; offs < ret; offs++)
{
*bufptr = copybuffer[offs];
bufptr++;
if (FP_OFF(bufptr) > 0x7777) /* watcom needs this in tiny model */
{
bufptr = MK_FP(FP_SEG(bufptr)+0x700, FP_OFF(bufptr)-0x7000);
}
}
/* keep track of how much read in, and only read in filesize bytes */
copied += ret;
chunk_size = (COPY_SIZE < (filesize-copied))?COPY_SIZE:(unsigned)(filesize-copied);
}
/* write out file, a chunk at a time; adjust size of last chunk to match remaining bytes */
bufptr = buffer;
copied = 0;
do
{
/* keep track of how much read in, and only read in filesize bytes */
chunk_size = (COPY_SIZE < (filesize-copied))?COPY_SIZE:(unsigned)(filesize-copied);
copied += chunk_size;
/* setup chunk of data to be written out */
for (offs = 0; offs < chunk_size; offs++)
{
copybuffer[offs] = *bufptr;
bufptr++;
if (FP_OFF(bufptr) > 0x7777) /* watcom needs this in tiny model */
{
bufptr = MK_FP(FP_SEG(bufptr)+0x700, FP_OFF(bufptr)-0x7000);
}
}
/* write the data to disk, abort on any error */
if (write(fdout, copybuffer, chunk_size) != chunk_size)
{
printf("Can't write %u bytes to %s\n", ret, dest);
close(fdout);
unlink(dest);
return FALSE;
}
} while (copied < filesize);
dos_freemem(theseg);
}
#endif
{
#if defined __WATCOMC__ || defined _MSC_VER /* || defined __BORLANDC__ */
unsigned short date, time;
#if defined(__WATCOMC__) && __WATCOMC__ < 1280
unsigned short date, time;
#else
unsigned date, time;
#endif
_dos_getftime(fdin, &date, &time);
_dos_setftime(fdout, date, time);
#elif defined __TURBOC__