61   PathName *path;  /* The object to be returned */  in _new_PathName()  local
65   path = (PathName *) malloc(sizeof(PathName));  in _new_PathName()
66   if(!path) {  in _new_PathName()
75   path->name = NULL;  in _new_PathName()
76   path->dim = 0;  in _new_PathName()
80   path->dim = _pu_pathname_dim();  in _new_PathName()
81   if(path->dim == 0)  in _new_PathName()
82     return _del_PathName(path);  in _new_PathName()
86   path->name = (char *)malloc(path->dim * sizeof(char));  in _new_PathName()
87   if(!path->name) {  in _new_PathName()
89     return _del_PathName(path);  in _new_PathName()
91   return path;  in _new_PathName()
102 PathName *_del_PathName(PathName *path)  in _del_PathName()  argument
104   if(path) {  in _del_PathName()
105     if(path->name)  in _del_PathName()
106       free(path->name);  in _del_PathName()
107     free(path);  in _del_PathName()
120 char *_pn_clear_path(PathName *path)  in _pn_clear_path()  argument
125   if(!path) {  in _pn_clear_path()
129   path->name[0] = '\0';  in _pn_clear_path()
130   return path->name;  in _pn_clear_path()
152 char *_pn_append_to_path(PathName *path, const char *string, int slen,  in _pn_append_to_path()  argument
160   if(!path || !string) {  in _pn_append_to_path()
167   pathlen = strlen(path->name);  in _pn_append_to_path()
176   if(!_pn_resize_path(path, pathlen + slen))  in _pn_append_to_path()
187 	path->name[pathlen++] = string[i];  in _pn_append_to_path()
192     path->name[pathlen] = '\0';  in _pn_append_to_path()
197     memcpy(path->name + pathlen, string, slen);  in _pn_append_to_path()
198     path->name[pathlen + slen] = '\0';  in _pn_append_to_path()
200   return path->name;  in _pn_append_to_path()
222 char *_pn_prepend_to_path(PathName *path, const char *string, int slen,  in _pn_prepend_to_path()  argument
231   if(!path || !string) {  in _pn_prepend_to_path()
238   pathlen = strlen(path->name);  in _pn_prepend_to_path()
263   if(!_pn_resize_path(path, pathlen + shift))  in _pn_prepend_to_path()
268   memmove(path->name + shift, path->name, pathlen+1);  in _pn_prepend_to_path()
278 	path->name[j++] = string[i];  in _pn_prepend_to_path()
281     memcpy(path->name, string, slen);  in _pn_prepend_to_path()
283   return path->name;  in _pn_prepend_to_path()
298 char *_pn_resize_path(PathName *path, size_t length)  in _pn_resize_path()  argument
303   if(!path) {  in _pn_resize_path()
314   if(length + 1 > path->dim) {  in _pn_resize_path()
316     char *name = (char *) realloc(path->name, dim);  in _pn_resize_path()
319     path->name = name;  in _pn_resize_path()
320     path->dim = dim;  in _pn_resize_path()
322   return path->name;  in _pn_resize_path()