Remove 'shadow' and merge into 'nss'

The majority of shadow routines are entry points for nss functionality.
This commit removes the 'shadow' subdirectory and moves all
functionality and tests to 'nss'.  References to shadow/ are accordingly
changed.
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

1 files changed, 94 insertions, 0 deletions

diff --git a/nss/putspent.c b/nss/putspent.c
new file mode 100644
index 0000000000..a80711d0b6
--- /dev/null
+++ b/nss/putspent.c
@@ -0,0 +1,94 @@
+/* Copyright (C) 1991-2023 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <nss.h>
+#include <stdio.h>
+#include <shadow.h>
+
+#define flockfile(s) _IO_flockfile (s)
+#define funlockfile(s) _IO_funlockfile (s)
+
+#define _S(x)	x ? x : ""
+
+
+/* Write an entry to the given stream.
+   This must know the format of the password file.  */
+int
+putspent (const struct spwd *p, FILE *stream)
+{
+  int errors = 0;
+
+  if (p->sp_namp == NULL || !__nss_valid_field (p->sp_namp)
+      || !__nss_valid_field (p->sp_pwdp))
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  flockfile (stream);
+
+  if (fprintf (stream, "%s:%s:", p->sp_namp, _S (p->sp_pwdp)) < 0)
+    ++errors;
+
+  if ((p->sp_lstchg != (long int) -1
+       && fprintf (stream, "%ld:", p->sp_lstchg) < 0)
+      || (p->sp_lstchg == (long int) -1
+	  && putc_unlocked (':', stream) == EOF))
+    ++errors;
+
+  if ((p->sp_min != (long int) -1
+       && fprintf (stream, "%ld:", p->sp_min) < 0)
+      || (p->sp_min == (long int) -1
+	  && putc_unlocked (':', stream) == EOF))
+    ++errors;
+
+  if ((p->sp_max != (long int) -1
+       && fprintf (stream, "%ld:", p->sp_max) < 0)
+      || (p->sp_max == (long int) -1
+	  && putc_unlocked (':', stream) == EOF))
+    ++errors;
+
+  if ((p->sp_warn != (long int) -1
+       && fprintf (stream, "%ld:", p->sp_warn) < 0)
+      || (p->sp_warn == (long int) -1
+	  && putc_unlocked (':', stream) == EOF))
+    ++errors;
+
+  if ((p->sp_inact != (long int) -1
+       && fprintf (stream, "%ld:", p->sp_inact) < 0)
+      || (p->sp_inact == (long int) -1
+	  && putc_unlocked (':', stream) == EOF))
+    ++errors;
+
+  if ((p->sp_expire != (long int) -1
+       && fprintf (stream, "%ld:", p->sp_expire) < 0)
+      || (p->sp_expire == (long int) -1
+	  && putc_unlocked (':', stream) == EOF))
+    ++errors;
+
+  if (p->sp_flag != ~0ul
+      && fprintf (stream, "%ld", p->sp_flag) < 0)
+    ++errors;
+
+  if (putc_unlocked ('\n', stream) == EOF)
+    ++errors;
+
+  funlockfile (stream);
+
+  return errors ? -1 : 0;
+}