add __pwd.c for <pwd.h> internal state

2 files changed, 47 insertions, 0 deletions

diff --git a/src/pwd/__pwd.c b/src/pwd/__pwd.c
new file mode 100644
index 00000000..c6fb7787
--- /dev/null
+++ b/src/pwd/__pwd.c
@@ -0,0 +1,18 @@
+#include "_pwd.h"
+
+#ifndef _XOPEN_SOURCE
+#undef getpwent
+#define getpwent __getpwent
+#include "getpwent.c"
+#endif
+
+struct __pwd __pwd =
+{
+	NULL,
+	{ 0 },
+	getpwent,
+};
+
+/*
+POSIX(1)
+*/
diff --git a/src/pwd/_pwd.h b/src/pwd/_pwd.h
new file mode 100644
index 00000000..b5d666bf
--- /dev/null
+++ b/src/pwd/_pwd.h
@@ -0,0 +1,29 @@
+#ifndef ___PWD_H__
+#define ___PWD_H__
+
+#include <sys/types.h>
+#include <pwd.h>
+#include <stdio.h>
+
+struct __pwd {
+	FILE *db;
+	struct passwd pwd;
+	struct passwd * (*getpwent)(void);
+};
+
+extern struct __pwd __pwd;
+
+#ifndef _XOPEN_SOURCE
+#define setpwent() (__pwd.db == NULL ? (void)0 : (void)rewind(__pwd.db))
+
+#define endpwent() do { \
+	if (__pwd.db) { \
+		fclose(__pwd.db); \
+		__pwd.db = NULL; \
+	} \
+} while (0)
+
+#define getpwent __pwd.getpwent
+#endif
+
+#endif