*: introduce and use xvfork()

[oweals/busybox.git] / include / shadow_.h

diff --git a/include/shadow_.h b/include/shadow_.h
index 177ee5f938eece29c3e8d718ca6fba3578a193af..5a8b71a471fd54cd234ba6bb9b18fa1e7e3c75e7 100644 (file)
--- a/include/shadow_.h
+++ b/include/shadow_.h
@@ -17,83 +17,99 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-/* Declaration of types and functions for shadow password suite.  */
-
-#if !defined CONFIG_USE_BB_SHADOW
-#include <shadow.h>
-#else
+/* Declaration of types and functions for shadow password suite */
 
 #ifndef _SHADOW_H
-#define _SHADOW_H      1
+#define _SHADOW_H 1
 
-#include <stdio.h>
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility push(hidden)
+#endif
 
-/* Paths to the user database files.  */
+/* Paths to the user database files */
 #ifndef _PATH_SHADOW
-#define        _PATH_SHADOW    "/etc/shadow"
+#define _PATH_SHADOW "/etc/shadow"
 #endif
-#define        SHADOW _PATH_SHADOW
-
-
-/* Structure of the password file.  */
-struct spwd
-{
-    char *sp_namp;             /* Login name.  */
-    char *sp_pwdp;             /* Encrypted password.  */
-    long int sp_lstchg;                /* Date of last change.  */
-    long int sp_min;           /* Minimum number of days between changes.  */
-    long int sp_max;           /* Maximum number of days between changes.  */
-    long int sp_warn;          /* Number of days to warn user to change
-                                  the password.  */
-    long int sp_inact;         /* Number of days the account may be
-                                  inactive.  */
-    long int sp_expire;                /* Number of days since 1970-01-01 until
-                                  account expires.  */
-    unsigned long int sp_flag; /* Reserved.  */
+
+/* Structure of the password file */
+struct spwd {
+       char *sp_namp;          /* Login name */
+       char *sp_pwdp;          /* Encrypted password */
+       long sp_lstchg;         /* Date of last change */
+       long sp_min;            /* Minimum number of days between changes */
+       long sp_max;            /* Maximum number of days between changes */
+       long sp_warn;           /* Number of days to warn user to change the password */
+       long sp_inact;          /* Number of days the account may be inactive */
+       long sp_expire;         /* Number of days since 1970-01-01 until account expires */
+       unsigned long sp_flag;  /* Reserved */
 };
 
 
-/* Open database for reading.  */
-extern void setspent (void);
+#define setspent    bb_internal_setspent
+#define endspent    bb_internal_endspent
+#define getspent    bb_internal_getspent
+#define getspnam    bb_internal_getspnam
+#define sgetspent   bb_internal_sgetspent
+#define fgetspent   bb_internal_fgetspent
+#define putspent    bb_internal_putspent
+#define getspent_r  bb_internal_getspent_r
+#define getspnam_r  bb_internal_getspnam_r
+#define sgetspent_r bb_internal_sgetspent_r
+#define fgetspent_r bb_internal_fgetspent_r
+#define lckpwdf     bb_internal_lckpwdf
+#define ulckpwdf    bb_internal_ulckpwdf
+
+
+/* All function names below should be remapped by #defines above
+ * in order to not collide with libc names.
+ * In theory it isn't necessary, but I saw weird interactions at link time.
+ * Let's play safe */
 
-/* Close database.  */
-extern void endspent (void);
 
-/* Get next entry from database, perhaps after opening the file.  */
-extern struct spwd *getspent (void);
+/* Open database for reading */
+extern void setspent(void);
 
-/* Get shadow entry matching NAME.  */
-extern struct spwd *getspnam (__const char *__name);
+/* Close database */
+extern void endspent(void);
 
-/* Read shadow entry from STRING.  */
-extern struct spwd *sgetspent (__const char *__string);
+/* Get next entry from database, perhaps after opening the file */
+extern struct spwd *getspent(void);
 
-/* Read next shadow entry from STREAM.  */
-extern struct spwd *fgetspent (FILE *__stream);
+/* Get shadow entry matching NAME */
+extern struct spwd *getspnam(__const char *__name);
 
-/* Write line containing shadow password entry to stream.  */
-extern int putspent (__const struct spwd *__p, FILE *__stream);
+/* Read shadow entry from STRING */
+extern struct spwd *sgetspent(__const char *__string);
 
-/* Reentrant versions of some of the functions above.  */
-extern int getspent_r (struct spwd *__result_buf, char *__buffer,
+/* 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,
+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,
+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,
+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);
+/* Protect password file against multi writers */
+extern int lckpwdf(void);
 
-/* Unlock password file.  */
-extern int ulckpwdf (void);
+/* Unlock password file */
+extern int ulckpwdf(void);
 
-#endif /* shadow.h */
+#if __GNUC_PREREQ(4,1)
+# pragma GCC visibility pop
 #endif
+
+#endif /* shadow.h */