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[CORE] Bug and formating fixes for GetApplicatonDir (#2285)

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* Fix formating problems with GetApplicationDir.
Don't ever return an empty string

* always return a valid path even if it's ./

* remove the need for the dll and just use the normal GetModuleFileName function
This commit is contained in:
Jeffery Myers 2022-01-14 11:16:25 -08:00 • committed by GitHub
parent f57727995a
commit f4dea6919a
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 61 additions and 88 deletions
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149
src/rcore.c
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@ -166,29 +166,13 @@
#ifndef MAX_PATH #ifndef MAX_PATH
#define MAX_PATH 1025 #define MAX_PATH 1025
#endif #endif
void *LoadLibraryA(void *lpLibFileName); unsigned int GetModuleFileNameA( void* hModule, const char* lpFilename, unsigned int nSize);
void *LoadLibraryW(void *lpLibFileName); unsigned int GetModuleFileNameW( void* hModule, const unsigned short* lpFilename, unsigned int nSize);
#ifdef UNICODE
#define LoadLibrary LoadLibraryW
#else
#define LoadLibrary LoadLibraryA
#endif // !UNICODE
void *GetProcAddress(void *hModule, void *lpProcName);
void *GetCurrentProcess(void);
bool FreeLibrary(void *hLibModule);
int WideCharToMultiByte(unsigned int cp, unsigned long flags, const unsigned short *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default); int WideCharToMultiByte(unsigned int cp, unsigned long flags, const unsigned short *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default);
const char pathDelim = '\\';
#elif defined(__linux__) #elif defined(__linux__)
#include <unistd.h> #include <unistd.h>
const char pathDelim = '/';
#elif defined(__APPLE__) #elif defined(__APPLE__)
#include <sys/syslimits.h> #include <sys/syslimits.h>
const char pathDelim = '/';
#endif // OSs #endif // OSs
#endif // PLATFORM_DESKTOP #endif // PLATFORM_DESKTOP
@ -3003,86 +2987,75 @@ const char *GetWorkingDirectory(void)
const char *GetApplicationDirectory(void) const char *GetApplicationDirectory(void)
{ {
static char appDir[MAX_FILEPATH_LENGTH] = { 0 }; static char appDir[MAX_FILEPATH_LENGTH] = { 0 };
memset(appDir, 0, MAX_FILEPATH_LENGTH); memset(appDir, 0, MAX_FILEPATH_LENGTH);
#if defined(_WIN32) #if defined(_WIN32)
typedef unsigned long(*GetModuleFileNameFunc)(void*, void*, void*, unsigned long); int len = 0;
GetModuleFileNameFunc getModuleFileNameExWPtr = NULL;
void *lib = LoadLibrary(L"psapi.dll");
if (lib == NULL)
{
appDir[0] = '\\';
}
else
{
#if defined (UNICODE) #if defined (UNICODE)
getModuleFileNameExWPtr = (GetModuleFileNameFunc)GetProcAddress(lib, "GetModuleFileNameExW"); unsigned short widePath[MAX_PATH];
len = GetModuleFileNameW(NULL, widePath, MAX_PATH);
len = WideCharToMultiByte(0, 0, widePath, len, appDir, MAX_PATH, NULL, NULL);
#else #else
getModuleFileNameExWPtr = (GetModuleFileNameFunc)GetProcAddress(lib, "GetModuleFileNameExA"); len = GetModuleFileNameA(NULL, appDir, MAX_PATH);
#endif #endif
if (len > 0)
{
for (int i = len; i >= 0; --i)
{
if (appDir[i] == '\\')
{
appDir[i + 1] = '\0';
i = -1;
}
}
}
else
{
appDir[0] = '.';
appDir[1] = '\\';
}
if (getModuleFileNameExWPtr == NULL)
{
appDir[0] = '\\';
}
else
{
int len = 0;
#if defined (UNICODE)
unsigned short widePath[MAX_PATH];
len = getModuleFileNameExWPtr(GetCurrentProcess(), NULL, widePath, MAX_PATH);
len = WideCharToMultiByte(0, 0, widePath, len, appDir, MAX_PATH, NULL, NULL);
#else
len = getModuleFileNameExWPtr(GetCurrentProcess(), NULL, appDir, MAX_PATH);
#endif
if (len > 0)
{
for (int i = len; i >= 0; --i)
{
if (appDir[i] == '\\')
{
appDir[i + 1] = '\0';
i = -1;
}
}
}
}
FreeLibrary(lib);
}
#elif defined(__linux__) #elif defined(__linux__)
unsigned int size = sizeof(appDir); unsigned int size = sizeof(appDir);
ssize_t len = readlink("/proc/self/exe", appDir, size); ssize_t len = readlink("/proc/self/exe", appDir, size);
if (len > 0) if (len > 0)
{ {
for (int i = len; i >= 0; --i) for (int i = len; i >= 0; --i)
{ {
if (appDir[i] == '/') if (appDir[i] == '/')
{ {
appDir[i + 1] = '\0'; appDir[i + 1] = '\0';
i = -1; i = -1;
} }
} }
} }
else
{
appDir[0] = '.';
appDir[1] = '/';
}
#elif defined(__APPLE__) #elif defined(__APPLE__)
uint32_t size = sizeof(appDir); uint32_t size = sizeof(appDir);
if (_NSGetExecutablePath(appDir, &size) == 0) if (_NSGetExecutablePath(appDir, &size) == 0)
{ {
int len = strlen(appDir); int len = strlen(appDir);
for (int i = len; i >= 0; --i) for (int i = len; i >= 0; --i)
{ {
if (appDir[i] == '/') if (appDir[i] == '/')
{ {
appDir[i + 1] = '\0'; appDir[i + 1] = '\0';
i = -1; i = -1;
} }
} }
} }
else
{
appDir[0] = '.';
appDir[1] = '/';
}
#endif #endif
return appDir; return appDir;