work in progress for windows/cygwin host fst

This commit is contained in:
Kelvin Sherlock 2016-11-24 13:04:37 -05:00
parent 92f78df754
commit e6f9adc1de

View File

@ -2,6 +2,13 @@
* host_fst.c
*/
#if defined(_WIN32)
#define _WIN32_WINNT 0x0600 // vista+
#include <Windows.h>
#include <io.h>
#endif
#define _BSD_SOURCE
#include <unistd.h>
#include <fcntl.h>
@ -10,6 +17,7 @@
#include <unistd.h>
#include <ctype.h>
#include <string.h>
#include <time.h>
#include "defc.h"
#include "gsos.h"
@ -22,14 +30,11 @@
#endif
#if defined(_WIN32) || defined(WIN_SDL)
#include <io.h>
#include <sys/xattr.h>
//#define ftruncate(a,b) _chsize(a,b)
#endif
#if defined(__linux__)
#include <time.h>
#include <sys/xattr.h>
#include <sys/time.h>
#endif
@ -60,19 +65,63 @@ extern Engine_reg engine;
#define global_buffer 0x009a00
enum {
regular_file,
resource_file,
directory_file,
};
struct directory {
int displacement;
int num_entries;
char *entries[1];
};
struct fd_entry {
struct fd_entry *next;
char *path;
int fd;
int st_mode;
int type;
int access;
int resource;
DIR *dirp;
int displacement;
struct directory *dir;
};
#define PSEUDO_FD_BASE 0x8000
static word32 pseudo_fds[32] = {};
static int pseudo_fd_alloc() {
for (int i = 0; i < 32; ++i) {
word32 x = pseudo_fds[i];
for (int j = 0; j < 32; ++j, x >>= 1) {
if (x & 0x01) continue;
pseudo_fds[i] |= (1 << j);
return PSEUDO_FD_BASE + (i * 32 + j);
}
}
return -1;
}
static int pseudo_fd_free(int fd) {
if (fd < PSEUDO_FD_BASE) return -1;
fd -= PSEUDO_FD_BASE;
if (fd >= 32 *32) return -1;
int chunk = fd / 32;
int offset = 1 << (fd % 32);
word32 x = pseudo_fds[chunk];
if ((x & offset) == 0) return -1;
x &= ~offset;
pseudo_fds[chunk] = x;
return 0;
}
static struct fd_entry *fd_head = NULL;
static ino_t root_ino = 0;
@ -157,6 +206,8 @@ static word32 map_errno() {
return pathNotFound;
case ENOMEM:
return outOfMem;
case EEXIST:
return dupPathname;
default:
return drvrIOError;
}
@ -173,6 +224,11 @@ static struct fd_entry *find_fd(int fd) {
return NULL;
}
static void dir_free(struct directory *dd);
static struct directory *dir_alloc(DIR *dirp);
static word32 remove_fd(int fd) {
word32 rv = invalidRefNum;
@ -185,9 +241,17 @@ static word32 remove_fd(int fd) {
rv = 0;
int ok;
if (head->dirp) ok = closedir(head->dirp);
else ok = close(head->fd);
int ok = 0;
switch (head->type) {
case regular_file:
case resource_file:
ok = close(head->fd);
break;
case directory_file:
dir_free(head->dir);
pseudo_fd_free(head->fd);
break;
}
if (ok < 0) rv = map_errno();
free(head->path);
free(head);
@ -358,7 +422,7 @@ static int file_type_to_finder_info(byte *buffer, word16 file_type, word32 aux_t
}
#if defined(__APPLE__) || defined(__linux__)
#if defined(__APPLE__)
static void get_file_xinfo(const char *path, struct file_info *fi) {
ssize_t tmp;
@ -374,12 +438,12 @@ static void get_file_xinfo(const char *path, struct file_info *fi) {
finder_info_to_filetype(fi->finder_info, &fi->file_type, &fi->aux_type);
}
}
#elif defined _WIN32_old
#elif defined _WIN32
static void get_file_xinfo(const char *path, struct file_info *fi) {
struct stat st;
char *p = append_string(path, ":" XATTR_RESOURCEFORK_NAME);
char *p = append_string(path, ":AFP_Resource");
if (stat(p, &st) == 0) {
fi->resource_eof = st.st_size;
fi->resource_blocks = st.st_blocks;
@ -423,7 +487,7 @@ static void get_file_xinfo(const char *path, struct file_info *fi) {
close(fd);
}
}
#elif defined(__linux__) || defined(_WIN32) || defined(WIN_SDL)
#elif defined(__linux__)
static void get_file_xinfo(const char *path, struct file_info *fi) {
ssize_t tmp;
@ -539,18 +603,15 @@ static word32 set_file_info(const char *path, struct file_info *fi) {
if (i) ok = setattrlist(path, &list, dates, i * sizeof(struct timespec), 0);
return 0;
}
#elif defined _WIN32_old
#elif defined _WIN32
static void UnixTimeToFileTime(time_t t, LPFILETIME pft)
static void UnixTimeToFileTime(time_t t, LARGE_INTEGER *out)
{
if (t) {
LONGLONG ll = Int32x32To64(t, 10000000) + 116444736000000000;
pft->dwLowDateTime = (DWORD)ll;
pft->dwHighDateTime = ll >> 32;
out->QuadPart = Int32x32To64(t, 10000000) + 116444736000000000;
} else {
pft->dwLowDateTime = 0;
pft->dwHighDateTime = 0;
out->QuadPart = 0;
}
}
@ -559,8 +620,8 @@ static void UnixTimeToFileTime(time_t t, LPFILETIME pft)
static word32 set_file_info(const char *path, struct file_info *fi) {
if (fi->has_fi && fi->storage_type != 0x0d) {
char *path = append_string(path, ":" XATTR_FINDERINFO_NAME);
int fd = open(path, O_WRONLY | O_CREAT, 0666);
char *rpath = append_string(path, ":" XATTR_FINDERINFO_NAME);
int fd = open(rpath, O_WRONLY | O_CREAT, 0666);
if (fd < 0) return map_errno();
write(fd, fi->finder_info, 32);
close(fd);
@ -573,16 +634,14 @@ static word32 set_file_info(const char *path, struct file_info *fi) {
// just use FILETIME in the file_info if WIN32?
struct FILE_BASIC_INFO fbi;
FILE_BASIC_INFO fbi;
memset(&fbi, 0, sizeof(fbi));
LONGLONG ll;
if (fi->create_date) {
UnixTimeToFileTime(fi->create_date, &fbi.CreationTime);
}
if (fi->modified_date) {
FILETIME ft;
LARGE_INTEGER ft;
UnixTimeToFileTime(fi->modified_date, &ft);
fbi.ChangeTime = ft;
fbi.LastAccessTime = ft;
@ -590,7 +649,7 @@ static word32 set_file_info(const char *path, struct file_info *fi) {
}
Handle h = get_osfhandle(fd);
HANDLE h = (HANDLE)get_osfhandle(fd);
BOOL ok = SetFileInformationByHandle(h, FileBasicInfo, &fbi, sizeof(fbi));
close(fd);
}
@ -608,21 +667,18 @@ static word32 set_file_info(const char *path, struct file_info *fi) {
}
if (fi->modified_date) {
/*
struct timeval times[2];
memset(times, 0, sizeof(times));
times[0] = 0; // access
//times[0] = 0; // access
times[1].tv_sec = fi.modified_date; // modified
*/
int ok = utimes(path);
int ok = utimes(path, times);
if (ok < 0) return map_errno();
}
return 0;
}
#elif defined(__linux__) || defined(_WIN32) || defined(WIN_SDL)
#elif defined(__linux__)
static word32 set_file_info(const char *path, struct file_info *fi) {
if (fi->has_fi && fi->storage_type != 0x0d) {
@ -631,17 +687,14 @@ static word32 set_file_info(const char *path, struct file_info *fi) {
}
if (fi->modified_date) {
/*
struct timeval times[2];
memset(times, 0, sizeof(times));
times[0] = 0; // access
times[1].tv_sec = fi.modified_date; // modified
int ok = utimes(path);
//times[0] = 0; // access
times[1].tv_sec = fi->modified_date; // modified
int ok = utimes(path, times);
if (ok < 0) return map_errno();
*/
}
return 0;
}
@ -656,11 +709,10 @@ static word32 set_file_info(const char *path, struct file_info *fi) {
memset(times, 0, sizeof(times));
times[0] = 0; // access
times[1].tv_sec = fi.modified_date; // modified
int ok = utimes(path);
int ok = utimes(path, times);
if (ok < 0) return map_errno();
}
return 0;
@ -960,8 +1012,16 @@ static word32 fst_shutdown(void) {
struct fd_entry *head = fd_head;
while (head) {
struct fd_entry *tmp = head->next;
if (head->dirp) closedir(head->dirp);
else close(head->fd);
switch(head->type) {
case regular_file:
case resource_file:
close(head->fd);
break;
case directory_file:
dir_free(head->dir);
pseudo_fd_free(head->fd);
break;
}
free(head->path);
free(head);
head = tmp;
@ -983,6 +1043,7 @@ static word32 fst_startup(void) {
fst_shutdown();
memset(&pseudo_fds, 0, sizeof(pseudo_fds));
if (stat(root, &st) < 0) {
fprintf(stderr, "%s does not exist\n", root);
return invalidFSTop;
@ -1289,6 +1350,27 @@ static word32 fst_clear_backup(int class, const char *path) {
return invalidFSTop;
}
static int open_directory(const char *path, struct directory **out, word16 *error) {
DIR *dirp = opendir(path);
if (!dirp) {
*error = map_errno();
return -1;
}
struct directory *dd = dir_alloc(dirp);
closedir(dirp);
if (!dd) { *error = outOfMem; return -1; }
int fd = pseudo_fd_alloc();
if (fd < 0) {
*error = tooManyFilesOpen;
dir_free(dd);
dd = NULL;
}
*out = dd;
return fd;
}
static int open_data_fork(const char *path, word16 *access, word16 *error) {
int fd = -1;
@ -1319,6 +1401,11 @@ static int open_data_fork(const char *path, word16 *access, word16 *error) {
if (fd < 0) {
*error = map_errno();
}
if (fd >= PSEUDO_FD_BASE) {
close(fd);
*error = tooManyFilesOpen;
fd = -1;
}
return fd;
}
#if defined(__APPLE__)
@ -1356,14 +1443,96 @@ static int open_resource_fork(const char *path, word16 *access, word16 *error) {
if (fd < 0) {
*error = map_errno();
}
if (fd >= PSEUDO_FD_BASE) {
close(fd);
*error = tooManyFilesOpen;
fd = -1;
}
return fd;
}
#elif defined(_WIN32) || defined(WIN_SDL) || defined(__linux__)
#elif defined(_WIN32)
#ifdef __CYGWIN__
#include <sys/cygwin.h>
int cygwin_open_attr(const char *path, const char *attr, word16 *access, word16 *error) {
char buffer[PATH_MAX];
ssize_t ok = cygwin_conv_path(CCP_POSIX_TO_WIN_A, path, buffer, sizeof(buffer));
if (ok < 0) {
*error = fstError;
return -1;
}
int uAccess = 0;
DWORD wAccess = 0;
char *rpath = append_string(path, attr);
HANDLE h = INVALID_HANDLE_VALUE;
for (;;) {
DWORD wCreate = 0;
switch(*access) {
case readEnableAllowWrite:
case readWriteEnable:
wAccess = GENERIC_READ | GENERIC_WRITE;
wCreate = OPEN_ALWAYS;
uAccess = O_RDWR;
break;
case readEnable:
wAccess = GENERIC_READ;
wCreate = OPEN_EXISTING;
uAccess = O_RDONLY;
break;
case writeEnable:
wAccess = GENERIC_WRITE;
wCreate = OPEN_ALWAYS;
uAccess = O_WRONLY;
break;
}
h = CreateFile(path, wAccess, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, wCreate, FILE_ATTRIBUTE_NORMAL, NULL);
if (*access ==readEnableAllowWrite) {
if (h == INVALID_HANDLE_VALUE) {
*access = readEnable;
continue;
}
*access = readEnable;
}
break;
}
if (h == INVALID_HANDLE_VALUE) {
// remap GetLastError()...
*error = fstError;
return -1;
}
printf("%s\n", rpath);
int fd = cygwin_attach_handle_to_fd(rpath, -1, h, 1, GENERIC_READ | GENERIC_WRITE);
if (fd < 0) {
*error = map_errno();
}
if (fd >= PSEUDO_FD_BASE) {
close(fd);
*error = tooManyFilesOpen;
fd = -1;
}
return fd;
}
#endif
static int open_resource_fork(const char *path, word16 *access, word16 *error) {
char *rpath = append_string(path, ":" XATTR_RESOURCEFORK_NAME);
#ifdef __CYGWIN__
return cygwin_open_attr(path, ":AFP_Resource", access, error);
#endif
char *rpath = append_string(path, ":AFP_Resource");
int fd = -1;
for (;;) {
@ -1393,6 +1562,11 @@ static int open_resource_fork(const char *path, word16 *access, word16 *error) {
if (fd < 0) {
*error = map_errno();
}
if (fd >= PSEUDO_FD_BASE) {
close(fd);
*error = tooManyFilesOpen;
fd = -1;
}
return fd;
}
#elif defined __sun
@ -1435,7 +1609,11 @@ static int open_resource_fork(const char *path, word16 *access, word16 *error) {
return -1;
}
close(tmp);
if (fd >= PSEUDO_FD_BASE) {
close(fd);
*error = tooManyFilesOpen;
fd = -1;
}
return fd;
}
#elif defined __linux__
@ -1464,6 +1642,8 @@ static word32 fst_open(int class, const char *path) {
int fd;
int type = regular_file;
struct directory *dd = NULL;
word16 pcount = 0;
word16 request_access = readEnableAllowWrite;
@ -1475,7 +1655,11 @@ static word32 fst_open(int class, const char *path) {
if (pcount >= 4) resource_number = get_memory16_c(pb + OpenRecGS_resourceNumber, 0);
}
if (resource_number) {
if (resource_number > 1) return paramRangeErr;
type = resource_file;
}
if (access > 3) return paramRangeErr;
// special access checks for directories.
@ -1489,8 +1673,10 @@ static word32 fst_open(int class, const char *path) {
case readWriteEnable:
return invalidAccess;
}
type = directory_file;
}
if (read_only) {
switch (request_access) {
case readEnableAllowWrite:
@ -1504,24 +1690,26 @@ static word32 fst_open(int class, const char *path) {
}
access = request_access;
if (resource_number) fd = open_resource_fork(path, &access, &rv);
else fd = open_data_fork(path, &access, &rv);
if (fd < 0) return rv;
// todo -- use id separate from fd?
if (fd > 65535) {
close(fd);
return tooManyFilesOpen;
switch(type) {
case regular_file:
fd = open_data_fork(path, &access, &rv);
break;
case resource_file:
fd = open_resource_fork(path, &access, &rv);
break;
case directory_file:
fd = open_directory(path, &dd, &rv);
break;
}
if (fd < 0) return rv;
if (class) {
if (pcount >= 5) set_memory16_c(pb + OpenRecGS_access, access, 0);
if (pcount >= 6) set_memory16_c(pb + OpenRecGS_fileType, fi.file_type, 0);
if (pcount >= 7) set_memory32_c(pb + OpenRecGS_auxType, fi.aux_type, 0);
if (pcount >= 8) set_memory16_c(pb + OpenRecGS_storageType, fi.storage_type, 0);
if (pcount >= 8) set_memory16_c(pb + OpenRecGS_storageType, fi. storage_type, 0);
if (pcount >= 9) set_date_time_rec(pb + OpenRecGS_createDateTime, fi.create_date);
if (pcount >= 10) set_date_time_rec(pb + OpenRecGS_modDateTime, fi.modified_date);
@ -1551,12 +1739,11 @@ static word32 fst_open(int class, const char *path) {
}
e->fd = fd;
e->st_mode = fi.st_mode;
e->resource = resource_number;
e->type = type;
if (type == directory_file) e->dir = dd;
if (resource_number) e->type = resource_file;
e->access = access;
if (S_ISDIR(fi.st_mode)) {
e->dirp = fdopendir(fd);
}
e->path = strdup(path);
e->next = fd_head;
fd_head = e;
@ -1574,7 +1761,10 @@ static word32 fst_read(int class) {
if (!e) return invalidRefNum;
if (!S_ISREG(e->st_mode)) return badStoreType;
switch (e->type) {
case directory_file:
return badStoreType;
}
word32 pb = get_memory24_c(engine.direct + dp_param_blk_ptr, 0);
@ -1652,7 +1842,11 @@ static word32 fst_write(int class) {
if (!(e->access & writeEnable))
return invalidAccess;
if (!S_ISREG(e->st_mode)) return badStoreType;
switch (e->type) {
case directory_file:
return badStoreType;
}
word32 pb = get_memory24_c(engine.direct + dp_param_blk_ptr, 0);
@ -1744,7 +1938,10 @@ static word32 fst_set_mark(int class) {
struct fd_entry *e = find_fd(fd);
if (!e) return invalidRefNum;
if (!S_ISREG(e->st_mode)) return badStoreType;
switch (e->type) {
case directory_file:
return badStoreType;
}
word32 pb = get_memory24_c(engine.direct + dp_param_blk_ptr, 0);
@ -1773,7 +1970,11 @@ static word32 fst_set_eof(int class) {
struct fd_entry *e = find_fd(fd);
if (!e) return invalidRefNum;
if (!S_ISREG(e->st_mode)) return badStoreType;
switch (e->type) {
case directory_file:
return badStoreType;
}
word32 pb = get_memory24_c(engine.direct + dp_param_blk_ptr, 0);
@ -1808,11 +2009,13 @@ static word32 fst_get_mark(int class) {
off_t pos = 0;
if (S_ISREG(e->st_mode)) {
switch (e->type) {
case directory_file:
return badStoreType;
}
pos = lseek(fd, 0, SEEK_CUR);
if (pos < 0) return map_errno();
} else return badStoreType;
if (class) {
set_memory32_c(pb + PositionRecGS_position, pos, 0);
@ -1832,22 +2035,21 @@ static word32 fst_get_eof(int class) {
word32 pb = get_memory24_c(engine.direct + dp_param_blk_ptr, 0);
switch (e->type) {
case directory_file:
return badStoreType;
}
off_t eof = 0;
off_t pos = 0;
if (S_ISREG(e->st_mode)) {
#if _WIN32_old
eof = filelength(fd);
if (eof == -1) return map_errno();
#else
pos = lseek(fd, 0, SEEK_CUR);
eof = lseek(fd, 0, SEEK_END);
if (eof < 0) return map_errno();
lseek(fd, pos, SEEK_SET);
#endif
} else return badStoreType;
if (class) {
set_memory32_c(pb + PositionRecGS_position, eof, 0);
@ -1876,6 +2078,48 @@ static int exclude_dir_entry(const char *name) {
return 0;
}
static void dir_free(struct directory *dd) {
if (!dd) return;
for (int i = 0; i < dd->num_entries; ++i) {
free(dd->entries[i]);
}
free(dd);
}
static int qsort_callback(const void *a, const void *b) {
return strcmp((const char *)a, (const char *)b);
}
static struct directory *dir_alloc(DIR *dirp) {
int capacity = 100;
size_t size = sizeof(struct directory) + sizeof(char *) * capacity;
struct directory *dd = (struct directory *)malloc(size);
if (!dd) return NULL;
memset(dd, 0, size);
for (;;) {
struct dirent *d = readdir(dirp);
if (!d) break;
if (exclude_dir_entry(d->d_name)) continue;
if (dd->num_entries == capacity) {
size += capacity;
capacity += capacity;;
struct directory *tmp = realloc(dd, size);
if (!tmp) {
dir_free(dd);
return NULL;
}
dd = tmp;
}
dd->entries[dd->num_entries++] = strdup(d->d_name);
}
// sort them to make life more consistent.
qsort(dd->entries, dd->num_entries, sizeof(char *), qsort_callback);
return dd;
}
static word32 fst_get_dir_entry(int class) {
int fd = engine.yreg;
@ -1883,7 +2127,8 @@ static word32 fst_get_dir_entry(int class) {
struct fd_entry *e = find_fd(fd);
if (!e) return invalidRefNum;
if (!e->dirp) return badFileFormat;
if (e->type != directory_file) return badFileFormat;
word32 pb = get_memory24_c(engine.direct + dp_param_blk_ptr, 0);
@ -1903,20 +2148,10 @@ static word32 fst_get_dir_entry(int class) {
name = get_memory24_c(pb + DirEntryRec_nameBuffer, 0);
}
if (base > 2) return paramRangeErr;
if (base == 0 && displacement == 0) {
// count them up.
int count = 0;
rewinddir(e->dirp);
for (;;) {
struct dirent *d = readdir(e->dirp);
if (!d) break;
if (exclude_dir_entry(d->d_name)) continue;
count++;
}
rewinddir(e->dirp);
e->displacement = 0;
int count = e->dir->num_entries;
e->dir->displacement = 0;
if (class) {
if (pcount >= 6) set_memory16_c(pb + DirEntryRecGS_entryNum, count, 0);
@ -1927,52 +2162,41 @@ static word32 fst_get_dir_entry(int class) {
return 0;
}
if (base == 2) {
// displacement is subtracted from current displacement
if (displacement > e->displacement) return endOfDir; //?
base = 0;
displacement = e->displacement - displacement;
}
if (base == 1 && displacement == 0) {
if (e->displacement) {
base = 0;
displacement = e->displacement;
}
else displacement = 1;
int dir_displacement = e->dir->displacement;
switch (base) {
case 0: // displacement is absolute entry number.
break;
case 1: // displacement is added to the current displacement.
displacement = dir_displacement + displacement;
break;
case 2: // displacement is substracted from current displacement.
displacement = dir_displacement - displacement;
break;
default:
return paramRangeErr;
}
if (displacement) --displacement;
if (displacement < 0) return endOfDir;
if (displacement >= e->dir->num_entries) return endOfDir;
if (base == 0) {
rewinddir(e->dirp);
e->displacement = 0;
}
struct dirent *d;
for(;;) {
d = readdir(e->dirp);
if (d == NULL) return endOfDir;
if (exclude_dir_entry(d->d_name)) continue;
e->displacement++;
if (--displacement == 0) break;
}
word32 rv = 0;
char *fullpath = append_path(e->path, d->d_name);
const char *dname = e->dir->entries[displacement++];
e->dir->displacement = displacement;
char *fullpath = append_path(e->path, dname);
struct file_info fi;
rv = get_file_info(fullpath, &fi);
// p16 and gs/os both use truncating c1 output string.
rv = set_gsstr_truncate(name, d->d_name);
rv = set_gsstr_truncate(name, dname);
if (class) {
if (pcount > 2) set_memory16_c(pb + DirEntryRecGS_flags, fi.storage_type == 0x05 ? 0x8000 : 0, 0);
if (pcount >= 6) set_memory16_c(pb + DirEntryRecGS_entryNum, e->displacement, 0);
if (pcount >= 6) set_memory16_c(pb + DirEntryRecGS_entryNum, displacement, 0);
if (pcount >= 7) set_memory16_c(pb + DirEntryRecGS_fileType, fi.file_type, 0);
if (pcount >= 8) set_memory32_c(pb + DirEntryRecGS_eof, fi.eof, 0);
if (pcount >= 9) set_memory32_c(pb + DirEntryRecGS_blockCount, fi.blocks, 0);
@ -1996,10 +2220,9 @@ static word32 fst_get_dir_entry(int class) {
if (pcount >= 17) set_memory32_c(pb + DirEntryRecGS_resourceBlocks, fi.resource_blocks, 0);
}
else {
set_memory16_c(pb + DirEntryRec_entryNum, e->displacement, 0);
if (pcount > 2) set_memory16_c(pb + DirEntryRec_flags, fi.storage_type == 0x05 ? 0x8000 : 0, 0);
set_memory16_c(pb + DirEntryRec_flags, fi.storage_type == 0x05 ? 0x8000 : 0, 0);
set_memory16_c(pb + DirEntryRec_entryNum, e->displacement, 0);
set_memory16_c(pb + DirEntryRec_entryNum, displacement, 0);
set_memory16_c(pb + DirEntryRec_fileType, fi.file_type, 0);
set_memory32_c(pb + DirEntryRec_endOfFile, fi.eof, 0);
set_memory32_c(pb + DirEntryRec_blockCount, fi.blocks, 0);