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#include "dos.h" /* AN000 */
#include "fdisk.h" /* AN000 */
#include "subtype.h" /* AN000 */
#include "extern.h" /* AN000 */
/* */
char find_free_partition()
BEGIN
char i;
/* Look at all four partition entries for empty partition */
for (i = c(0); i < c(4);i++) /* AC000 */
BEGIN
/* if we find an empty one, return which one */
if (part_table[cur_disk][i].num_sec == ul(0)) /* AC000 */
BEGIN
return(i);
break;
END
END
/* Did not find one, return NOT_FOUND */
return(c(NOT_FOUND)); /* AC000 */
END
/* */
char find_partition_type(type)
unsigned char type;
BEGIN
char i;
/* Look at all four partition entries for system id byte that matches */
for (i = c(0); i < c(4);i++) /* AC000 */
BEGIN
/* if we find a match, do a TRUE return */
if (part_table[cur_disk][i].sys_id == type)
BEGIN
return(TRUE);
break;
END
END
/* Did not find one, return FALSE */
return(FALSE);
END
/* */
XFLOAT get_partition_size(type) /* AC000 */
unsigned char type; /* AC000 */
BEGIN
char i;
/* Look at all four partition entries for system id byte that matches */
for (i = c(0); i < c(4);i++) /* AC000 */
BEGIN
/* if we find a match, get the size */
if (part_table[cur_disk][i].sys_id == type)
BEGIN
/* Get the size of the partition from the array */
return(part_table[cur_disk][i].mbytes_used); /* AC000 */
END
END
/* Did not find one, something bad wrong happened */
internal_program_error();
END
/* */
char find_active_partition()
BEGIN
unsigned char i;
/* See if there is an active partition */
for (i = uc(0); i < uc(4);i++) /* AC000 */
BEGIN
/* if we find an active one, TRUE return */
if (part_table[cur_disk][i].boot_ind == uc(ACTIVE)) /* AC000 */
BEGIN
return(TRUE);
break;
END
END
/* Did not find one, return FALSE */
return(FALSE);
END
/* */
char find_partition_location(type)
unsigned char type;
BEGIN
char i;
/* Look at all four partition entries for system id byte that matches */
for (i = c(0); i < c(4);i++) /* AC000 */
BEGIN
/* if we find a match, do a TRUE return */
if (part_table[cur_disk][i].sys_id == type)
BEGIN
return(i);
break;
END
END
/* Did not find one, return */
return(c(NOT_FOUND)); /* AC000 */
END
/* */
char find_free_ext()
BEGIN
char i;
/* Look at all 23 extended entries for empty partition */
for (i = c(0); i < c(23);i++) /* AC000 */
BEGIN
/* if we find an empty one, return which one */
if (ext_table[cur_disk][i].sys_id == uc(0)) /* AC000 */
BEGIN
return(i);
break;
END
END
return(c(NOT_FOUND)); /* AC000 */
END
/* */
char find_logical_drive()
BEGIN
unsigned char i;
/* See if there is a logical drive defined in Extended Partition */
for (i = uc(0); i < uc(23);i++) /* AC000 */
BEGIN
/* See if we find a sys id that is not 0 */
if (ext_table[cur_disk][i].sys_id != uc(0)) /* AC000 */
BEGIN
return(TRUE);
break;
END
END
return(FALSE);
END
/* */
char get_num_logical_dos_drives()
BEGIN
char i;
char number;
number = c(0); /* AC000 */
/* See if there is a logical drive defined in Extended Partition */
for (i = c(0); i < c(23);i++) /* AC000 */
BEGIN
/* See if we find a sys id that is DOS */
if ((ext_table[cur_disk][i].sys_id == uc(DOS12)) || (ext_table[cur_disk][i].sys_id == uc(DOS16)) ||
(ext_table[cur_disk][i].sys_id == uc(DOSNEW))) /* AC000 */
BEGIN
number++;
END
END
return(number);
END
/* */
char find_ext_drive(offset)
char offset;
BEGIN
char number_found;
char i;
number_found = c(0); /* AC000 */
/* Go look for the nth extended drive */
for (i=c(0); i < c(23); i++) /* AC000 */
BEGIN
/* See if there is a drive we know about */
if ((ext_table[cur_disk][i].sys_id == uc(DOS12)) || (ext_table[cur_disk][i].sys_id == uc(DOS16)) ||
(ext_table[cur_disk][i].sys_id == uc(DOSNEW))) /* AC000 */
BEGIN
/* Is this the one we were looking for ? */
if (number_found == offset)
BEGIN
/* Yes it is, return where we found it */
return(i);
break;
END
/* Show we found one and go look for the next */
number_found++;
END
END
/* We should never get here */
internal_program_error();
return(c(INVALID)); /* AC000 */
END
/* */
char find_previous_drive(offset)
char offset;
BEGIN
char number_found;
char last_found;
char i;
number_found = c(0); /* AC000 */
last_found = c(0); /* AC000 */
/* Go look for the nth extended drive */
for (i=c(0); i < c(23); i++) /* AC000 */
BEGIN
/* See if there is a drive */
if (ext_table[cur_disk][i].sys_id != uc(0)) /* AC000 */
BEGIN
/* Is this the one we were looking for ? */
if (number_found == offset)
BEGIN
/* Yes it is, return where we found the previous one */
return(last_found);
END
/* This is the latest one we found, but not the limit, so save it */
last_found = i;
/* Show we found one and go look for the next */
number_found++;
END
END
/* We should never get here */
internal_program_error();
return(c(INVALID)); /* AC000 */
END
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