+/* Get next entry from database, perhaps after opening the file */
+extern struct spwd *getspent(void);
+
+/* Get shadow entry matching NAME */
+extern struct spwd *getspnam(__const char *__name);
+
+/* Read shadow entry from STRING */
+extern struct spwd *sgetspent(__const char *__string);
+
+/* Read next shadow entry from STREAM */
+extern struct spwd *fgetspent(FILE *__stream);
+
+/* Write line containing shadow password entry to stream */
+extern int putspent(__const struct spwd *__p, FILE *__stream);
+
+/* Reentrant versions of some of the functions above */
+extern int getspent_r(struct spwd *__result_buf, char *__buffer,
+ size_t __buflen, struct spwd **__result);
+
+extern int getspnam_r(__const char *__name, struct spwd *__result_buf,
+ char *__buffer, size_t __buflen,
+ struct spwd **__result);
+
+extern int sgetspent_r(__const char *__string, struct spwd *__result_buf,
+ char *__buffer, size_t __buflen,
+ struct spwd **__result);
+
+extern int fgetspent_r(FILE *__stream, struct spwd *__result_buf,
+ char *__buffer, size_t __buflen,
+ struct spwd **__result);
+/* Protect password file against multi writers */
+extern int lckpwdf(void);
+
+/* Unlock password file */
+extern int ulckpwdf(void);