(file) Ported to PEEK2

This commit is contained in:
Devine Lu Linvega 2023-04-10 10:50:16 -07:00
parent 1bda3b77f0
commit 7e1ac70dc2
4 changed files with 32 additions and 43 deletions

View File

@ -11,6 +11,15 @@
#ifdef _WIN32
#include <libiberty/libiberty.h>
#define realpath(s, dummy) lrealpath(s)
#define DIR_SEP_CHAR '\\'
#define DIR_SEP_STR "\\"
#define pathcmp(path1, path2, length) strncasecmp(path1, path2, length) /* strncasecmp provided by libiberty */
#define notdriveroot(file_name) (file_name[0] != DIR_SEP_CHAR && ((strlen(file_name) > 2 && file_name[1] != ':') || strlen(file_name) <= 2))
#else
#define DIR_SEP_CHAR '/'
#define DIR_SEP_STR "/"
#define pathcmp(path1, path2, length) strncmp(path1, path2, length)
#define notdriveroot(file_name) (file_name[0] != DIR_SEP_CHAR)
#endif
#ifndef PATH_MAX
@ -65,16 +74,16 @@ static Uint16
get_entry(char *p, Uint16 len, const char *pathname, const char *basename, int fail_nonzero)
{
struct stat st;
if(len < strlen(basename) + 7)
if(len < strlen(basename) + 8)
return 0;
if(stat(pathname, &st))
return fail_nonzero ? sprintf(p, "!!!! %s\n", basename) : 0;
return fail_nonzero ? snprintf(p, len, "!!!! %s\n", basename) : 0;
else if(S_ISDIR(st.st_mode))
return sprintf(p, "---- %s/\n", basename);
return snprintf(p, len, "---- %s/\n", basename);
else if(st.st_size < 0x10000)
return sprintf(p, "%04x %s\n", (unsigned int)st.st_size, basename);
return snprintf(p, len, "%04x %s\n", (unsigned int)st.st_size, basename);
else
return sprintf(p, "???? %s\n", basename);
return snprintf(p, len, "???? %s\n", basename);
}
static Uint16
@ -102,7 +111,7 @@ file_read_dir(UxnFile *c, char *dest, Uint16 len)
free(t);
}
if(strlen(c->current_filename) + 1 + strlen(c->de->d_name) < sizeof(pathname))
sprintf(pathname, "%s/%s", c->current_filename, c->de->d_name);
snprintf(pathname, sizeof(pathname), "%s/%s", c->current_filename, c->de->d_name);
else
pathname[0] = '\0';
n = get_entry(p, len, pathname, c->de->d_name, 1);
@ -124,17 +133,17 @@ retry_realpath(const char *file_name)
errno = ENAMETOOLONG;
return NULL;
}
if(file_name[0] != '/') {
if(notdriveroot(file_name)) {
/* TODO: use a macro instead of '/' for absolute path first character so that other systems can work */
/* if a relative path, prepend cwd */
getcwd(p, sizeof(p));
strcat(p, "/"); /* TODO: use a macro instead of '/' for the path delimiter */
strcat(p, DIR_SEP_STR); /* TODO: use a macro instead of '/' for the path delimiter */
}
strcat(p, file_name);
while((r = realpath(p, NULL)) == NULL) {
if(errno != ENOENT)
return NULL;
x = strrchr(p, '/'); /* TODO: path delimiter macro */
x = strrchr(p, DIR_SEP_CHAR); /* TODO: path delimiter macro */
if(x)
*x = '\0';
else
@ -149,7 +158,7 @@ file_check_sandbox(UxnFile *c)
char *x, *rp, cwd[PATH_MAX] = {'\0'};
x = getcwd(cwd, sizeof(cwd));
rp = retry_realpath(c->current_filename);
if(rp == NULL || (x && strncmp(cwd, rp, strlen(cwd)) != 0)) {
if(rp == NULL || (x && pathcmp(cwd, rp, strlen(cwd)) != 0)) {
c->outside_sandbox = 1;
fprintf(stderr, "file warning: blocked attempt to access %s outside of sandbox\n", c->current_filename);
}
@ -213,7 +222,7 @@ file_write(UxnFile *c, void *src, Uint16 len, Uint8 flags)
static Uint16
file_stat(UxnFile *c, void *dest, Uint16 len)
{
char *basename = strrchr(c->current_filename, '/');
char *basename = strrchr(c->current_filename, DIR_SEP_CHAR);
if(c->outside_sandbox) return 0;
if(basename != NULL)
basename++;
@ -237,52 +246,37 @@ file_deo(Uint8 id, Uint8 *ram, Uint8 *d, Uint8 port)
Uint16 addr, len, res;
switch(port) {
case 0x5:
PEKDEV(addr, 0x4);
PEKDEV(len, 0xa);
addr = PEEK2(d + 0x4);
len = PEEK2(d + 0xa);
if(len > 0x10000 - addr)
len = 0x10000 - addr;
res = file_stat(c, &ram[addr], len);
POKDEV(0x2, res);
POKE2(d + 0x2, res);
break;
case 0x6:
res = file_delete(c);
POKDEV(0x2, res);
POKE2(d + 0x2, res);
break;
case 0x9:
PEKDEV(addr, 0x8);
addr = PEEK2(d + 0x8);
res = file_init(c, (char *)&ram[addr], 0x10000 - addr, 0);
POKDEV(0x2, res);
POKE2(d + 0x2, res);
break;
case 0xd:
PEKDEV(addr, 0xc);
PEKDEV(len, 0xa);
addr = PEEK2(d + 0xc);
len = PEEK2(d + 0xa);
if(len > 0x10000 - addr)
len = 0x10000 - addr;
res = file_read(c, &ram[addr], len);
POKDEV(0x2, res);
POKE2(d + 0x2, res);
break;
case 0xf:
PEKDEV(addr, 0xe);
PEKDEV(len, 0xa);
addr = PEEK2(d + 0xe);
len = PEEK2(d + 0xa);
if(len > 0x10000 - addr)
len = 0x10000 - addr;
res = file_write(c, &ram[addr], len, d[0x7]);
POKDEV(0x2, res);
POKE2(d + 0x2, res);
break;
}
}
Uint8
file_dei(Uint8 id, Uint8 *d, Uint8 port)
{
UxnFile *c = &uxn_file[id];
Uint16 res;
switch(port) {
case 0xc:
case 0xd:
res = file_read(c, &d[port], 1);
POKDEV(0x2, res);
break;
}
return d[port];
}

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@ -13,4 +13,3 @@ WITH REGARD TO THIS SOFTWARE.
#define DEV_FILE0 0xa
void file_deo(Uint8 id, Uint8 *ram, Uint8 *d, Uint8 port);
Uint8 file_dei(Uint8 id, Uint8 *d, Uint8 port);

View File

@ -53,8 +53,6 @@ emu_dei(Uxn *u, Uint8 addr)
Uint8 p = addr & 0x0f, d = addr & 0xf0;
switch(d) {
case 0x20: return screen_dei(u, addr);
case 0xa0: return file_dei(0, &u->dev[d], p);
case 0xb0: return file_dei(1, &u->dev[d], p);
case 0xc0: return datetime_dei(&u->dev[d], p);
}
return u->dev[addr];

View File

@ -50,8 +50,6 @@ emu_dei(Uxn *u, Uint8 addr)
{
Uint8 p = addr & 0x0f, d = addr & 0xf0;
switch(d) {
case 0xa0: return file_dei(0, &u->dev[d], p);
case 0xb0: return file_dei(1, &u->dev[d], p);
case 0xc0: return datetime_dei(&u->dev[d], p);
}
return u->dev[addr];