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b51b82 |
diff -up Linux-PAM-1.3.1/libpam/include/pam_cc_compat.h.inline Linux-PAM-1.3.1/libpam/include/pam_cc_compat.h
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b51b82 |
--- Linux-PAM-1.3.1/libpam/include/pam_cc_compat.h.inline 2022-05-26 10:44:31.702623614 +0200
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b51b82 |
+++ Linux-PAM-1.3.1/libpam/include/pam_cc_compat.h 2022-05-26 10:44:31.703623621 +0200
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b51b82 |
@@ -44,4 +44,17 @@
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# define DIAG_POP_IGNORE_CAST_ALIGN /* empty */
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#endif
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b51b82 |
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+/*
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+ * Evaluates to
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+ * 1, if the given two types are known to be the same
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+ * 0, otherwise.
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+ */
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b51b82 |
+#if PAM_GNUC_PREREQ(3, 0)
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+# define PAM_IS_SAME_TYPE(x_, y_) \
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+ __builtin_types_compatible_p(__typeof__(x_), __typeof__(y_))
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+#else
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+/* Cannot tell whether these types are the same. */
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b51b82 |
+# define PAM_IS_SAME_TYPE(x_, y_) 0
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+#endif
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+
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b51b82 |
#endif /* PAM_CC_COMPAT_H */
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b51b82 |
diff -up Linux-PAM-1.3.1/libpam/include/pam_inline.h.inline Linux-PAM-1.3.1/libpam/include/pam_inline.h
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b51b82 |
--- Linux-PAM-1.3.1/libpam/include/pam_inline.h.inline 2022-05-26 10:44:31.703623621 +0200
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b51b82 |
+++ Linux-PAM-1.3.1/libpam/include/pam_inline.h 2022-05-26 10:44:31.703623621 +0200
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b51b82 |
@@ -0,0 +1,67 @@
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+/*
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+ * Copyright (c) 2020 Dmitry V. Levin <ldv@altlinux.org>
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+ *
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+ * Handy inline functions and macros providing some convenient functionality
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+ * to libpam and its modules.
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+ */
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+
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+#ifndef PAM_INLINE_H
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+#define PAM_INLINE_H
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+
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+#include "pam_cc_compat.h"
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+#include <string.h>
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+
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+/*
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+ * Evaluates to
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+ * - a syntax error if the argument is 0,
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+ * 0, otherwise.
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+ */
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+#define PAM_FAIL_BUILD_ON_ZERO(e_) (sizeof(int[-1 + 2 * !!(e_)]) * 0)
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+
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+/*
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+ * Evaluates to
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+ * 1, if the given type is known to be a non-array type
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+ * 0, otherwise.
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+ */
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+#define PAM_IS_NOT_ARRAY(a_) PAM_IS_SAME_TYPE((a_), &(a_)[0])
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+
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b51b82 |
+/*
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+ * Evaluates to
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+ * - a syntax error if the argument is not an array,
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+ * 0, otherwise.
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+ */
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b51b82 |
+#define PAM_MUST_BE_ARRAY(a_) PAM_FAIL_BUILD_ON_ZERO(!PAM_IS_NOT_ARRAY(a_))
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+
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b51b82 |
+/* Evaluates to the number of elements in the specified array. */
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b51b82 |
+#define PAM_ARRAY_SIZE(a_) (sizeof(a_) / sizeof((a_)[0]) + PAM_MUST_BE_ARRAY(a_))
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+
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b51b82 |
+/*
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+ * Returns NULL if STR does not start with PREFIX,
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+ * or a pointer to the first char in STR after PREFIX.
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+ * The length of PREFIX is specified by PREFIX_LEN.
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b51b82 |
+ */
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+static inline const char *
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+pam_str_skip_prefix_len(const char *str, const char *prefix, size_t prefix_len)
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+{
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+ return strncmp(str, prefix, prefix_len) ? NULL : str + prefix_len;
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+}
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+
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+#define pam_str_skip_prefix(str_, prefix_) \
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+ pam_str_skip_prefix_len((str_), (prefix_), sizeof(prefix_) - 1 + PAM_MUST_BE_ARRAY(prefix_))
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+
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+/*
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+ * Returns NULL if STR does not start with PREFIX
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+ * (ignoring the case of the characters),
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+ * or a pointer to the first char in STR after PREFIX.
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+ * The length of PREFIX is specified by PREFIX_LEN.
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+ */
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b51b82 |
+static inline const char *
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+pam_str_skip_icase_prefix_len(const char *str, const char *prefix, size_t prefix_len)
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b51b82 |
+{
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+ return strncasecmp(str, prefix, prefix_len) ? NULL : str + prefix_len;
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b51b82 |
+}
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b51b82 |
+
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b51b82 |
+#define pam_str_skip_icase_prefix(str_, prefix_) \
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+ pam_str_skip_icase_prefix_len((str_), (prefix_), sizeof(prefix_) - 1 + PAM_MUST_BE_ARRAY(prefix_))
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b51b82 |
+
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b51b82 |
+#endif /* PAM_INLINE_H */
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b51b82 |
diff -up Linux-PAM-1.3.1/libpam/Makefile.am.inline Linux-PAM-1.3.1/libpam/Makefile.am
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b51b82 |
--- Linux-PAM-1.3.1/libpam/Makefile.am.inline 2022-05-26 10:44:31.702623614 +0200
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b51b82 |
+++ Linux-PAM-1.3.1/libpam/Makefile.am 2022-05-26 10:45:21.146977780 +0200
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b51b82 |
@@ -18,7 +18,8 @@ include_HEADERS = include/security/_pam_
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b51b82 |
include/security/pam_ext.h include/security/pam_modutil.h
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b51b82 |
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b51b82 |
noinst_HEADERS = pam_prelude.h pam_private.h pam_tokens.h \
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b51b82 |
- pam_modutil_private.h include/pam_cc_compat.h
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b51b82 |
+ pam_modutil_private.h include/pam_cc_compat.h \
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b51b82 |
+ include/pam_inline.h
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b51b82 |
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b51b82 |
libpam_la_LDFLAGS = -no-undefined -version-info 84:2:84
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b51b82 |
libpam_la_LIBADD = @LIBAUDIT@ $(LIBPRELUDE_LIBS) @LIBDL@
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