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Fix #543

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This commit is contained in:
d0k3 2019-10-12 17:14:16 +02:00
parent 0ec73520e6
commit f24db1442e
3 changed files with 33 additions and 9 deletions
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20
arm9/source/filesys/fsperm.c
View File

@ -24,6 +24,16 @@ bool CheckWritePermissions(const char* path) {
int drvtype = DriveType(path);
u32 perm;
// create a standardized path string
char path_f[256];
char* p = (char*) path;
path_f[255] = '\0';
for (u32 i = 0; i < 255; i++) {
path_f[i] = *(p++);
while ((path_f[i] == '/') && (*p == '/')) p++;
if (!path_f[i]) break;
}
// check mounted image write permissions
if ((drvtype & DRV_IMAGE) && !CheckWritePermissions(GetMountPath()))
return false; // endless loop when mounted file inside image, but not possible
@ -43,11 +53,11 @@ bool CheckWritePermissions(const char* path) {
const char* path_lvl2[] = { PATH_SYS_LVL2 };
const char* path_lvl1[] = { PATH_SYS_LVL1 };
for (u32 i = 0; (i < sizeof(path_lvl3) / sizeof(char*)) && (lvl < 3); i++)
if (strncasecmp(path, path_lvl3[i], 256) == 0) lvl = 3;
if (strncasecmp(path_f, path_lvl3[i], 256) == 0) lvl = 3;
for (u32 i = 0; (i < sizeof(path_lvl2) / sizeof(char*)) && (lvl < 2); i++)
if (strncasecmp(path, path_lvl2[i], 256) == 0) lvl = 2;
if (strncasecmp(path_f, path_lvl2[i], 256) == 0) lvl = 2;
for (u32 i = 0; (i < sizeof(path_lvl1) / sizeof(char*)) && (lvl < 1); i++)
if (strncasecmp(path, path_lvl1[i], 256) == 0) lvl = 1;
if (strncasecmp(path_f, path_lvl1[i], 256) == 0) lvl = 1;
}
if (!IS_UNLOCKED) { // changed SysNAND permission levels on locked systems
if ((drvtype & DRV_CTRNAND) || (lvl == 2)) lvl = 3;
@ -60,7 +70,7 @@ bool CheckWritePermissions(const char* path) {
if (drvtype & DRV_VIRTUAL) { // check for paths
const char* path_lvl1[] = { PATH_EMU_LVL1 };
for (u32 i = 0; (i < sizeof(path_lvl1) / sizeof(char*)) && (lvl < 1); i++)
if (strncasecmp(path, path_lvl1[i], 256) == 0) lvl = 1;
if (strncasecmp(path_f, path_lvl1[i], 256) == 0) lvl = 1;
}
perm = perms[lvl];
snprintf(area_name, 16, "EmuNAND (lvl%lu)", lvl);
@ -82,7 +92,7 @@ bool CheckWritePermissions(const char* path) {
} else if (drvtype & DRV_MEMORY) {
perm = PERM_MEMORY;
snprintf(area_name, 16, "memory areas");
} else if (strncasecmp(path, "0:/Nintendo 3DS", 15) == 0) { // this check could be better
} else if (strncasecmp(path_f, "0:/Nintendo 3DS", 15) == 0) { // this check could be better
perm = PERM_SDDATA;
snprintf(area_name, 16, "SD system data");
} else if (drvtype & DRV_SDCARD) {

3
arm9/source/filesys/sddata.c
View File

@ -34,8 +34,9 @@ int alias_num (const TCHAR* path) {
void dealias_path (TCHAR* alias, const TCHAR* path) {
int num = alias_num(path);
u32 p_offs = (path[2] == '/' && ((path[3] == '/') || (path[3] == '\0'))) ? 3 : 2;
if (num >= 0) // set alias (alias is assumed to be 256 byte)
snprintf(alias, 256, "%s%s", alias_path[num], path + 2);
snprintf(alias, 256, "%s%s", alias_path[num], path + p_offs);
else strncpy(alias, path, 256);
}

19
arm9/source/utils/nandcmac.c
View File

@ -387,7 +387,7 @@ u32 CheckFixCmdCmac(const char* path, bool fix) {
}
}
// if fixing is enable, write back cmd file
// if fixing is enabled, write back cmd file
if (fix && fixed && CheckWritePermissions(path) &&
(fvx_qwrite(path, cmd_data, 0, cmd_size, NULL) != FR_OK)) {
free(cmd_data);
@ -432,7 +432,20 @@ u32 RecursiveFixFileCmacWorker(char* path) {
}
u32 RecursiveFixFileCmac(const char* path) {
char lpath[256] = { 0 };
strncpy(lpath, path, 255);
// create a fixed up local path
// (this is highly path sensitive)
char lpath[256];
char* p = (char*) path;
lpath[255] = '\0';
for (u32 i = 0; i < 255; i++) {
lpath[i] = *(p++);
while ((lpath[i] == '/') && (*p == '/')) p++;
if (!lpath[i]) {
if (i && (lpath[i-1] == '/'))
lpath[i-1] = '\0';
break;
}
}
return RecursiveFixFileCmacWorker(lpath);
}