char *com_getenv(char *keyword)
{
struct PSP *psp = COM_PSP_ADDR;
char *env = SEG2LINEAR(psp->envir_frame);
char key[128];
int len;
len = strlen(keyword);
memcpy(key, keyword, len+1);
strupperDOS(key);
while (*env) {
if (!strncmp(key, env, len) && (env[len] == '=')) {
return env + len + 1;
}
env += strlen(env) + 1;
}
return 0;
}
static int GetDirectoryEntry(int drive, int copyFlag, char *pathname,
Bit32u buffer)
{
char searchName[256];
int error, dirSize;
unsigned char defBuffer[CD_FRAMESIZE];
unsigned dirEntrySector, entryLength, index;
char *searchPos = searchName;
size_t searchlen;
/* skip initial \ */
MEMCPY_2UNIX(searchName, pathname + 1, 255);
searchName[255] = '\0';
strupperDOS(searchName);
//strip of tailing . (XCOM APOCALIPSE)
searchlen = strlen(searchName);
if (searchlen > 1 && strcmp(searchName, ".."))
if (searchName[searchlen - 1] == '.')
searchName[searchlen - 1] = 0;
C_printf("MSCDEX: Get DirEntry : Find : %s\n", searchName);
// read vtoc
error = ReadSectors(drive, 16, 1, defBuffer);
if (error)
return error;
// TODO: has to be iso 9660
if (memcmp("CD001", defBuffer + 1, 5) != 0)
return MSCDEX_ERROR_BAD_FORMAT;
// get directory position
dirEntrySector = *(unsigned *)(defBuffer + 156 + 2);
dirSize = *(int *)(defBuffer + 156 + 10);
do {
// Get string part
char *useName = searchPos;
size_t useNameLength;
searchPos = strchr(searchPos, '\\');
if (searchPos) {
useNameLength = searchPos - useName;
searchPos++;
} else
useNameLength = strlen(useName);
while (1) {
error =
ReadSectors(drive, dirEntrySector, 1, defBuffer);
if (error)
return error;
index = 0;
do {
char *entryName, *longername;
unsigned nameLength;
entryLength = defBuffer[index];
C_printf("MSCDEX: entryLength=%u, index=%d\n",
entryLength, index);
if (entryLength == 0)
break;
nameLength = defBuffer[index + 32];
entryName = defBuffer + index + 33;
if (namecomp
(entryName, nameLength, useName,
useNameLength))
break;
/* Xcom Apocalipse searches for MUSIC.
* and expects to find MUSIC;1
* All Files on the CDROM are of the kind
* blah;1
*/
longername = memchr(entryName, ';', nameLength);
if (longername &&
namecomp(entryName, longername - entryName,
useName, useNameLength))
break;
index += entryLength;
} while (index + 33 <= CD_FRAMESIZE);
if (index + 33 <= CD_FRAMESIZE)
break;
// continue search in next sector
dirSize -= 2048;
if (dirSize <= 0)
return 2; // file not found
dirEntrySector++;
}
// directory wechseln
dirEntrySector = *(unsigned *)(defBuffer + index + 2);
dirSize = *(unsigned *)(defBuffer + index + 10);
} while (searchPos);
return fill_buffer(copyFlag, buffer, defBuffer + index, entryLength);
};
int commands_plugin_inte6(void)
{
#define MAX_ARGS 63
char *args[MAX_ARGS + 1];
struct PSP *psp;
struct MCB *mcb;
struct com_program_entry *com;
int argc;
if (pool_used >= MAX_NESTING) {
com_error("Cannot invoke more than %i builtins\n", MAX_NESTING);
return 0;
}
if (!pool_used) {
if (!(lowmem_pool = lowmem_heap_alloc(LOWMEM_POOL_SIZE))) {
error("Unable to allocate memory pool\n");
return 0;
}
sminit(&mp, lowmem_pool, LOWMEM_POOL_SIZE);
}
pool_used++;
BMEM(allocated) = 0;
BMEM(retcode) = 0;
if (HI(ax) != BUILTINS_PLUGIN_VERSION) {
com_error("builtins plugin version mismatch: found %i, required %i\n",
HI(ax), BUILTINS_PLUGIN_VERSION);
com_error("You should update your generic.com, ems.sys, isemu.com and other utilities\n"
"from the latest dosemu package!\n");
commands_plugin_inte6_done();
return 0;
}
psp = COM_PSP_ADDR;
mcb = LOWMEM(SEGOFF2LINEAR(COM_PSP_SEG - 1,0));
/* first parse commandline */
args[0] = strdup(com_getarg0());
strupperDOS(args[0]);
argc = com_argparse((char *)&psp->cmdline_len, &args[1], MAX_ARGS - 1) + 1;
/* DOS 4 and up */
strncpy(builtin_name, mcb->name, sizeof(builtin_name) - 1);
builtin_name[sizeof(builtin_name) - 1] = 0;
strupperDOS(builtin_name);
com = find_com_program(builtin_name);
/* DOS 3.0->3.31 construct the program name from the environment */
if(!com) {
char *p = strrchr(args[0],'\\');
strncpy(builtin_name, p+1, sizeof(builtin_name) - 1);
builtin_name[sizeof(builtin_name) - 1] = 0;
p = strchr(builtin_name, '.');
if(p)
*p = '\0';
com = find_com_program(builtin_name);
}
if (com) {
int err = com->program(argc, args);
if (!err) {
NOCARRY;
} else {
CARRY;
_AL = err;
}
} else {
com_error("inte6: unknown builtin: %s\n",builtin_name);
CARRY;
_AL = 1;
}
free(args[0]);
return 1;
}
