/**
* Creates a UUID mapping for the file.
*
* @returns IPRT status code.
* @param pszCacheFile The path to the file in the cache.
* @param pFileUuid The UUID of the file.
* @param pszUuidMapDir The UUID map subdirectory in the cache, if this is
* wanted, otherwise NULL.
* @param pCfg The configuration.
*/
static int rtDbgSymCacheAddCreateUuidMapping(const char *pszCacheFile, PRTUUID pFileUuid,
const char *pszUuidMapDir, PCRTDBGSYMCACHEADDCFG pCfg)
{
/*
* Create the UUID map entry first, deep.
*/
char szMapPath[RTPATH_MAX];
int rc = RTPathJoin(szMapPath, sizeof(szMapPath) - sizeof("/xxxx/yyyy/xxxx/yyyy/xxxx/zzzzzzzzzzzz") + 1,
pCfg->pszCache, pszUuidMapDir);
if (RT_FAILURE(rc))
return RTMsgErrorRc(rc, "Error constructing UUID map path (RTPathJoin): %Rrc", rc);
size_t cch = strlen(szMapPath);
szMapPath[cch] = '-';
rc = RTUuidToStr(pFileUuid, &szMapPath[cch + 2], sizeof(szMapPath) - cch);
if (RT_FAILURE(rc))
return RTMsgErrorRc(rc, "Error constructing UUID map path (RTUuidToStr): %Rrc", rc);
/* Uppercase the whole lot. */
RTStrToUpper(&szMapPath[cch + 2]);
/* Split the first dword in two. */
szMapPath[cch + 1] = szMapPath[cch + 2];
szMapPath[cch + 2] = szMapPath[cch + 3];
szMapPath[cch + 3] = szMapPath[cch + 4];
szMapPath[cch + 4] = szMapPath[cch + 5];
szMapPath[cch + 5] = '-';
/*
* Create the directories in the path.
*/
char chSaved = RTPATH_SLASH;
for (unsigned i = 0; i < 6; i++, cch += 5)
{
Assert(szMapPath[cch] == '-');
szMapPath[cch] = '\0';
if (!RTDirExists(szMapPath))
{
rc = RTDirCreate(szMapPath, 0755, RTDIRCREATE_FLAGS_NOT_CONTENT_INDEXED_NOT_CRITICAL);
if (RT_FAILURE(rc))
return RTMsgErrorRc(rc, "RTDirCreate failed on '%s' (UUID map path): %Rrc", szMapPath, rc);
}
szMapPath[cch] = RTPATH_SLASH;
}
cch -= 5;
/*
* Calculate a relative path from there to the actual file.
*/
char szLinkTarget[RTPATH_MAX];
//szMapPath[cch] = '\0';
rc = RTPathCalcRelative(szLinkTarget, sizeof(szLinkTarget), szMapPath, pszCacheFile);
//szMapPath[cch] = RTPATH_SLASH;
if (RT_FAILURE(rc))
return RTMsgErrorRc(rc, "Failed to calculate relative path from '%s' to '%s': %Rrc", szMapPath, pszCacheFile, rc);
/*
* If there is already a link there, check if it matches or whether
* perhaps it's target doesn't exist.
*/
RTFSOBJINFO ObjInfo;
rc = RTPathQueryInfoEx(szMapPath, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK);
if (RT_SUCCESS(rc))
{
if (RTFS_IS_SYMLINK(ObjInfo.Attr.fMode))
{
rc = RTPathQueryInfoEx(szMapPath, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_FOLLOW_LINK);
if (RT_SUCCESS(rc))
{
char *pszCurTarget = NULL;
rc = RTSymlinkReadA(szMapPath, &pszCurTarget);
if (RT_FAILURE(rc))
return RTMsgErrorRc(rc, "UUID map: failed to read existing symlink '%s': %Rrc", szMapPath, rc);
if (RTPathCompare(pszCurTarget, szLinkTarget) == 0)
RTMsgInfo("UUID map: existing link '%s' has the same target ('%s').", szMapPath, pszCurTarget);
else
{
RTMsgError("UUID map: Existing mapping '%s' pointing to '%s' insted of '%s'",
szMapPath, pszCurTarget, szLinkTarget);
rc = VERR_ALREADY_EXISTS;
}
RTStrFree(pszCurTarget);
return rc;
}
else
RTMsgInfo("UUID map: replacing dangling link '%s'", szMapPath);
RTSymlinkDelete(szMapPath, 0 /*fFlags*/);
}
else if (RTFS_IS_FILE(ObjInfo.Attr.fMode))
return RTMsgErrorRc(VERR_IS_A_FILE,
"UUID map: found file at '%s', expect symbolic link or nothing.", szMapPath);
else if (RTFS_IS_DIRECTORY(ObjInfo.Attr.fMode))
return RTMsgErrorRc(VERR_IS_A_DIRECTORY,
"UUID map: found directory at '%s', expect symbolic link or nothing.", szMapPath);
else
return RTMsgErrorRc(VERR_NOT_SYMLINK,
"UUID map: Expected symbolic link or nothing at '%s', found: fMode=%#x",
szMapPath, ObjInfo.Attr.fMode);
}
/*
* Create the symbolic link.
*/
rc = RTSymlinkCreate(szMapPath, szLinkTarget, RTSYMLINKTYPE_FILE, 0);
if (RT_FAILURE(rc))
return RTMsgErrorRc(rc, "Failed to create UUID map symlink '%s' to '%s': %Rrc", szMapPath, szLinkTarget, rc);
RTMsgInfo("UUID map: %s => %s", szMapPath, szLinkTarget);
return VINF_SUCCESS;
}
static void test1Worker(RTTEST hTest, const char *pszBaseDir,
const char *pszTarget, RTSYMLINKTYPE enmType, bool fDangling)
{
char szPath1[RTPATH_MAX];
char szPath2[RTPATH_MAX];
size_t cchTarget = strlen(pszTarget);
char szPath3[RTPATH_MAX];
RTStrCopy(szPath3, sizeof(szPath3), pszTarget);
#ifdef RT_OS_WINDOWS
/* see RTSymlinkCreate in symlink-win.cpp */
char c;
char *psz = szPath3;
while ((c = *psz) != '\0')
{
if (c == '/')
*psz = '\\';
psz++;
}
#endif
/* Create it.*/
RTTESTI_CHECK_RC_OK_RETV(RTPathJoin(szPath1, sizeof(szPath1), pszBaseDir, "tstRTSymlink-link-1"));
RTSymlinkDelete(szPath1, 0); /* clean up previous run */
RTTESTI_CHECK_RC_RETV(RTSymlinkCreate(szPath1, pszTarget, RTSYMLINKTYPE_FILE, 0), VINF_SUCCESS);
/* Check the predicate functions. */
RTTESTI_CHECK(RTSymlinkExists(szPath1));
RTTESTI_CHECK(RTSymlinkIsDangling(szPath1) == fDangling);
/* Read it. */
memset(szPath2, 0xff, sizeof(szPath2));
szPath2[sizeof(szPath2) - 1] = '\0';
RTTESTI_CHECK_RC(RTSymlinkRead(szPath1, szPath2, sizeof(szPath2), 0), VINF_SUCCESS);
RTTESTI_CHECK_MSG(strcmp(szPath2, szPath3) == 0, ("got=\"%s\" expected=\"%s\"", szPath2, szPath3));
memset(szPath2, 0xff, sizeof(szPath2));
szPath2[sizeof(szPath2) - 1] = '\0';
RTTESTI_CHECK_RC(RTSymlinkRead(szPath1, szPath2, cchTarget + 1, 0), VINF_SUCCESS);
RTTESTI_CHECK_MSG(strcmp(szPath2, szPath3) == 0, ("got=\"%s\" expected=\"%s\"", szPath2, szPath3));
memset(szPath2, 0xff, sizeof(szPath2));
szPath2[sizeof(szPath2) - 1] = '\0';
RTTESTI_CHECK_RC(RTSymlinkRead(szPath1, szPath2, cchTarget, 0), VERR_BUFFER_OVERFLOW);
RTTESTI_CHECK_MSG( strncmp(szPath2, szPath3, cchTarget - 1) == 0
&& szPath2[cchTarget - 1] == '\0',
("got=\"%s\" expected=\"%.*s\"", szPath2, cchTarget - 1, szPath3));
/* Other APIs that have to handle symlinks carefully. */
int rc;
RTFSOBJINFO ObjInfo;
RTTESTI_CHECK_RC(rc = RTPathQueryInfo(szPath1, &ObjInfo, RTFSOBJATTRADD_NOTHING), VINF_SUCCESS);
if (RT_SUCCESS(rc))
RTTESTI_CHECK(RTFS_IS_SYMLINK(ObjInfo.Attr.fMode));
RTTESTI_CHECK_RC(rc = RTPathQueryInfoEx(szPath1, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_ON_LINK), VINF_SUCCESS);
if (RT_SUCCESS(rc))
RTTESTI_CHECK(RTFS_IS_SYMLINK(ObjInfo.Attr.fMode));
if (!fDangling)
{
RTTESTI_CHECK_RC(rc = RTPathQueryInfoEx(szPath1, &ObjInfo, RTFSOBJATTRADD_NOTHING, RTPATH_F_FOLLOW_LINK), VINF_SUCCESS);
if (RT_SUCCESS(rc))
RTTESTI_CHECK(!RTFS_IS_SYMLINK(ObjInfo.Attr.fMode));
else
RT_ZERO(ObjInfo);
if (enmType == RTSYMLINKTYPE_DIR)
{
RTTESTI_CHECK(RTDirExists(szPath1));
RTTESTI_CHECK(RTFS_IS_DIRECTORY(ObjInfo.Attr.fMode));
}
else if (enmType == RTSYMLINKTYPE_FILE)
{
RTTESTI_CHECK(RTFileExists(szPath1));
RTTESTI_CHECK(RTFS_IS_FILE(ObjInfo.Attr.fMode));
}
/** @todo Check more APIs */
}
/* Finally, the removal of the symlink. */
RTTESTI_CHECK_RC(RTSymlinkDelete(szPath1, 0), VINF_SUCCESS);
RTTESTI_CHECK_RC(RTSymlinkDelete(szPath1, 0), VERR_FILE_NOT_FOUND);
}