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fileops: Fix 'GetFinalPathNameByHandleA' in old platforms

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This commit is contained in:
Vicent Marti 2011-06-17 19:08:06 +02:00
parent cb75ffea80
commit 9c11bd0a06
1 changed files with 17 additions and 1 deletions
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18
src/fileops.c
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@ -689,9 +689,25 @@ int gitfo_lstat__w32(const char *file_name, struct stat *buf)
int gitfo_readlink__w32(const char *link, char *target, size_t target_len) int gitfo_readlink__w32(const char *link, char *target, size_t target_len)
{ {
static DWORD (*pGetFinalPath)(HANDLE, LPTSTR, DWORD, DWORD) = NULL;
HANDLE hFile; HANDLE hFile;
DWORD dwRet; DWORD dwRet;
/*
* Try to load the pointer to pGetFinalPath dynamically, because
* it is not available in platforms older than Vista
*/
if (pGetFinalPath == NULL) {
HANDLE library = LoadLibrary("kernel32");
if (library != NULL)
pGetFinalPath = GetProcAddress(library, "GetFinalPathNameByHandleA");
if (pGetFinalPath == NULL)
return git__throw(GIT_EOSERR,
"'GetFinalPathNameByHandleA' is not available in this platform");
}
hFile = CreateFile(link, // file to open hFile = CreateFile(link, // file to open
GENERIC_READ, // open for reading GENERIC_READ, // open for reading
FILE_SHARE_READ, // share for reading FILE_SHARE_READ, // share for reading
@ -703,7 +719,7 @@ int gitfo_readlink__w32(const char *link, char *target, size_t target_len)
if (hFile == INVALID_HANDLE_VALUE) if (hFile == INVALID_HANDLE_VALUE)
return GIT_EOSERR; return GIT_EOSERR;
dwRet = GetFinalPathNameByHandleA(hFile, target, target_len, VOLUME_NAME_DOS); dwRet = pGetFinalPath(hFile, target, target_len, VOLUME_NAME_DOS);
if (dwRet >= target_len) if (dwRet >= target_len)
return GIT_ENOMEM; return GIT_ENOMEM;