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add a readlink equivalent for Windows 

SVN revision: 31663
This commit is contained in:
doursse 2007-09-09 11:05:02 +00:00 committed by doursse
parent a22ebcafac
commit 21339321e9
1 changed files with 58 additions and 11 deletions
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69
legacy/ecore/src/lib/ecore_file/ecore_file.c
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@ -26,7 +26,7 @@ static int init = 0;
/* Nevertheless, it can creates .lnk files */
#ifdef _WIN32
static int
symlink (const char *oldpath, const char *newpath)
symlink(const char *oldpath, const char *newpath)
{
IShellLink *pISL;
IShellLink **shell_link;
@ -35,10 +35,10 @@ symlink (const char *oldpath, const char *newpath)
wchar_t new_path[MB_CUR_MAX];
/* Hack to cleanly remove a warning */
shell_link = &pISL;
if (FAILED(CoInitialize(NULL)))
return -1;
shell_link = &pISL;
if (FAILED(CoCreateInstance(&CLSID_ShellLink,
NULL,
CLSCTX_INPROC_SERVER,
@ -73,6 +73,62 @@ symlink (const char *oldpath, const char *newpath)
CoUninitialize();
return -1;
}
static int
readlink(const char *path, char *buf, size_t bufsiz)
{
IShellLink *pISL;
IShellLink **shell_link;
IPersistFile *pIPF;
IPersistFile **persit_file;
wchar_t old_path[MB_CUR_MAX];
char new_path[MB_CUR_MAX];
int length;
/* Hack to cleanly remove a warning */
if (FAILED(CoInitialize(NULL)))
return -1;
persit_file = &pIPF;
if (FAILED(CoCreateInstance(&CLSID_ShellLink,
NULL,
CLSCTX_INPROC_SERVER,
&IID_IPersistFile,
(void **)persit_file)))
goto no_instance;
mbstowcs(old_path, path, MB_CUR_MAX);
if (FAILED(pIPF->lpVtbl->Load(pIPF, old_path, STGM_READWRITE)))
goto no_load;
shell_link = &pISL;
if (FAILED(pIPF->lpVtbl->QueryInterface(pIPF, &IID_IShellLink, (void **)shell_link)))
goto no_queryinterface;
if (FAILED(pISL->lpVtbl->GetPath(pISL, new_path, MB_CUR_MAX, NULL, 0)))
goto no_getpath;
length = strlen(new_path);
if (length > bufsiz)
length = bufsiz;
memcpy(buf, new_path, length);
pISL->lpVtbl->Release(pISL);
pIPF->lpVtbl->Release(pIPF);
CoUninitialize();
return length;
no_getpath:
pISL->lpVtbl->Release(pISL);
no_queryinterface:
no_load:
pIPF->lpVtbl->Release(pIPF);
no_instance:
CoUninitialize();
return -1;
}
#endif /* _WIN32 */
/* externally accessible functions */
@ -237,19 +293,14 @@ ecore_file_recursive_rm(const char *dir)
DIR *dirp;
struct dirent *dp;
char path[PATH_MAX];
#ifndef _WIN32
char buf[PATH_MAX];
#endif /* _WIN32 */
struct stat st;
int ret;
/* On Windows, no link */
#ifndef _WIN32
if (readlink(dir, buf, sizeof(buf)) > 0)
{
return ecore_file_unlink(dir);
}
#endif /* _WIN32 */
ret = stat(dir, &st);
if ((ret == 0) && (S_ISDIR(st.st_mode)))
@ -506,16 +557,12 @@ ecore_file_can_exec(const char *file)
EAPI char *
ecore_file_readlink(const char *link)
{
#ifndef _WIN32
char buf[PATH_MAX];
int count;
if ((count = readlink(link, buf, sizeof(buf))) < 0) return NULL;
buf[count] = 0;
return strdup(buf);
#else
return NULL;
#endif /* _WIN32 */
}
/**