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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:46:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:46:30 +0000
commitb5896ba9f6047e7031e2bdee0622d543e11a6734 (patch)
treefd7b460593a2fee1be579bec5697e6d887ea3421 /src/util/safe_getenv.c
parentInitial commit. (diff)
downloadpostfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.tar.xz
postfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.zip
Adding upstream version 3.4.23.upstream/3.4.23upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/util/safe_getenv.c')
-rw-r--r--src/util/safe_getenv.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/util/safe_getenv.c b/src/util/safe_getenv.c
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+/*++
+/* NAME
+/* safe_getenv 3
+/* SUMMARY
+/* guarded getenv()
+/* SYNOPSIS
+/* #include <safe.h>
+/*
+/* char *safe_getenv(const name)
+/* char *name;
+/* DESCRIPTION
+/* The \fBsafe_getenv\fR() routine reads the named variable from the
+/* environment, provided that the unsafe() routine agrees.
+/* SEE ALSO
+/* unsafe(3), detect non-user privileges
+/* LICENSE
+/* .ad
+/* .fi
+/* The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/* Wietse Venema
+/* IBM T.J. Watson Research
+/* P.O. Box 704
+/* Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <stdlib.h>
+
+/* Utility library. */
+
+#include "safe.h"
+
+/* safe_getenv - read environment variable with guard */
+
+char *safe_getenv(const char *name)
+{
+ return (unsafe() == 0 ? getenv(name) : 0);
+}