diff options
Diffstat (limited to 'src/H5F.c')
| -rw-r--r-- | src/H5F.c | 32 |
1 files changed, 27 insertions, 5 deletions
@@ -69,6 +69,8 @@ static size_t H5F_get_objects(const H5F_t *f, unsigned types, size_t max_objs, h static int H5F_get_objects_cb(void *obj_ptr, hid_t obj_id, void *key); static H5F_t *H5F_new(H5F_file_t *shared, hid_t fcpl_id, hid_t fapl_id, H5FD_t *lf); +static herr_t H5F_build_actual_name(const H5F_t *f, const H5P_genplist_t *fapl, + const char *name, char ** /*out*/ actual_name); static herr_t H5F_dest(H5F_t *f, hid_t dxpl_id); static herr_t H5F_close(H5F_t *f); @@ -1142,7 +1144,8 @@ H5F_dest(H5F_t *f, hid_t dxpl_id) *------------------------------------------------------------------------- */ H5F_t * -H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, hid_t dxpl_id) +H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, + hid_t dxpl_id) { H5F_t *file = NULL; /*the success return value */ H5F_file_t *shared = NULL; /*shared part of `file' */ @@ -1312,7 +1315,7 @@ H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, hid_t d HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to build extpath") /* Formulate the actual file name, after following symlinks, etc. */ - if(H5F_build_actual_name(file, name, &file->actual_name) < 0) + if(H5F_build_actual_name(file, a_plist, name, &file->actual_name) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to build actual name") /* Success */ @@ -2147,15 +2150,18 @@ H5F_decr_nopen_objs(H5F_t *f) * *------------------------------------------------------------------------- */ -herr_t -H5F_build_actual_name(const H5F_t *f, const char *name, char **actual_name/*out*/) +static herr_t +H5F_build_actual_name(const H5F_t *f, const H5P_genplist_t *fapl, const char *name, + char **actual_name/*out*/) { + hid_t new_fapl_id = -1; /* ID for duplicated FAPL */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5F_build_actual_name) /* Sanity check */ HDassert(f); + HDassert(fapl); HDassert(name); HDassert(actual_name); @@ -2176,10 +2182,12 @@ H5F_build_actual_name(const H5F_t *f, const char *name, char **actual_name/*out* /* Check for symbolic link */ if(S_IFLNK == (lst.st_mode & S_IFMT)) { + H5P_genplist_t *new_fapl; /* Duplicated FAPL */ int *fd; /* POSIX I/O file descriptor */ h5_stat_t st; /* Stat info from stat() call */ h5_stat_t fst; /* Stat info from fstat() call */ char realname[PATH_MAX]; /* Fully resolved path name of file */ + hbool_t want_posix_fd; /* Flag for retrieving file descriptor from VFD */ /* Perform a sanity check that the file or link wasn't switched * between when we opened it and when we called lstat(). This is @@ -2187,8 +2195,19 @@ H5F_build_actual_name(const H5F_t *f, const char *name, char **actual_name/*out* * here: https://www.securecoding.cert.org/confluence/display/seccode/POS35-C.+Avoid+race+conditions+while+checking+for+the+existence+of+a+symbolic+link */ + /* Copy the FAPL object to modify */ + if((new_fapl_id = H5P_copy_plist(fapl, FALSE)) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTCOPY, FAIL, "unable to copy file access property list") + if(NULL == (new_fapl = (H5P_genplist_t *)H5I_object(new_fapl_id))) + HGOTO_ERROR(H5E_FILE, H5E_CANTCREATE, FAIL, "can't get property list") + + /* Set the character encoding on the new property list */ + want_posix_fd = TRUE; + if(H5P_set(new_fapl, H5F_ACS_WANT_POSIX_FD_NAME, &want_posix_fd) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set character encoding") + /* Retrieve the file handle */ - if(H5F_get_vfd_handle(f, H5P_DEFAULT, (void **)&fd) < 0) + if(H5F_get_vfd_handle(f, new_fapl_id, (void **)&fd) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't retrieve POSIX file descriptor") /* Stat the filename we're resolving */ @@ -2222,6 +2241,9 @@ H5F_build_actual_name(const H5F_t *f, const char *name, char **actual_name/*out* } /* end else */ done: + if(new_fapl_id > 0 && H5Pclose(new_fapl_id) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEOBJ, FAIL, "can't close duplicated FAPL") + FUNC_LEAVE_NOAPI(ret_value) } /* H5F_build_actual_name() */ |