* [Unix] BugFix: Correct a fatal error that may be thrown from functions like isFile is passed a bad path.

This commit is contained in:
Robert MacGregor 2021-10-14 20:36:00 -04:00
parent 98657bde7a
commit 42b862a54b
2 changed files with 14 additions and 8 deletions

View file

@ -42,7 +42,7 @@
//#define DEBUG_SPEW
extern void ResolvePathCaseInsensitive(char* pathName, S32 pathNameSize);
extern bool ResolvePathCaseInsensitive(char* pathName, S32 pathNameSize, bool requiredAbsolute);
namespace Torque
{
@ -160,8 +160,7 @@ FileNodeRef PosixFileSystem::resolve(const Path& path)
UTF8* caseSensitivePath = new UTF8[fileLength + 1];
dMemcpy(caseSensitivePath, file.c_str(), fileLength);
caseSensitivePath[fileLength] = 0x00;
ResolvePathCaseInsensitive(caseSensitivePath, fileLength);
ResolvePathCaseInsensitive(caseSensitivePath, fileLength, false);
String caseSensitiveFile(caseSensitivePath);
#else
String caseSensitiveFile = file;
@ -181,6 +180,7 @@ FileNodeRef PosixFileSystem::resolve(const Path& path)
#ifdef TORQUE_POSIX_PATH_CASE_INSENSITIVE
delete[] caseSensitivePath;
#endif
return result;
}

View file

@ -183,12 +183,17 @@ bool dPathCopy(const char *fromName, const char *toName, bool nooverwrite)
// munge the case of the specified pathName. This means try to find the actual
// filename in with case-insensitive matching on the specified pathName, and
// store the actual found name.
void ResolvePathCaseInsensitive(char* pathName, S32 pathNameSize)
bool ResolvePathCaseInsensitive(char* pathName, S32 pathNameSize, bool requiredAbsolute)
{
char tempBuf[MaxPath];
dStrncpy(tempBuf, pathName, pathNameSize);
AssertFatal(pathName[0] == '/', "PATH must be absolute");
// Check if we're an absolute path
if (pathName[0] != '/')
{
AssertFatal(!requiredAbsolute, "PATH must be absolute");
return false;
}
struct stat filestat;
const int MaxPathEl = 200;
@ -196,6 +201,7 @@ bool dPathCopy(const char *fromName, const char *toName, bool nooverwrite)
char testPath[MaxPath];
char pathEl[MaxPathEl];
bool done = false;
bool foundMatch = false;
dStrncpy(tempBuf, "/", MaxPath);
currChar++;
@ -220,7 +226,6 @@ bool dPathCopy(const char *fromName, const char *toName, bool nooverwrite)
{
DIR *dir = opendir(tempBuf);
struct dirent* ent;
bool foundMatch = false;
while (dir != NULL && (ent = readdir(dir)) != NULL)
{
if (dStricmp(pathEl, ent->d_name) == 0)
@ -247,6 +252,7 @@ bool dPathCopy(const char *fromName, const char *toName, bool nooverwrite)
}
dStrncpy(pathName, tempBuf, pathNameSize);
return foundMatch;
}
//-----------------------------------------------------------------------------
@ -296,7 +302,7 @@ bool dPathCopy(const char *fromName, const char *toName, bool nooverwrite)
return;
// otherwise munge the case of the path
ResolvePathCaseInsensitive(dest, destSize);
ResolvePathCaseInsensitive(dest, destSize, true);
}
//-----------------------------------------------------------------------------
@ -1291,7 +1297,7 @@ bool dPathCopy(const char *fromName, const char *toName, bool nooverwrite)
// Load path into temporary buffer
dMemcpy(caseSensitivePath, path, pathLength);
caseSensitivePath[pathLength] = 0x00;
ResolvePathCaseInsensitive(caseSensitivePath, pathLength);
ResolvePathCaseInsensitive(caseSensitivePath, pathLength, false);
#else
const char* caseSensitivePath = path;
#endif