file/file-secure_getenv.patch

---
 file-5.42/configure.ac |    2 ++
 file-5.42/src/file.h   |    8 ++++++++
 file-5.42/src/magic.c  |   12 ++++++------
 3 files changed, 16 insertions(+), 6 deletions(-)

--- file-5.42/configure.ac
+++ file-5.42/configure.ac	2022-06-13 08:34:50.347521415 +0000
@@ -122,6 +122,8 @@ if test "$enable_xzlib" != "no"; then
 fi
 AC_CHECK_TYPE([sig_t],[AC_DEFINE([HAVE_SIG_T],1,[Have sig_t type])],,[#include <signal.h>])
 
+AC_CHECK_FUNCS([__secure_getenv secure_getenv])
+
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_TYPE_OFF_T
 AC_TYPE_SIZE_T
--- file-5.42/src/file.h
+++ file-5.42/src/file.h	2022-06-13 08:34:50.347521415 +0000
@@ -709,4 +709,12 @@ static const char *rcsid(const char *p)
 #define __RCSID(a)
 #endif
 
+#ifndef HAVE_SECURE_GETENV
+#  ifdef HAVE___SECURE_GETENV
+#    define secure_getenv __secure_getenv
+#  else
+#    error neither secure_getenv nor __secure_getenv is available
+#  endif
+#endif
+
 #endif /* __file_h__ */
--- file-5.42/src/magic.c
+++ file-5.42/src/magic.c	2022-06-13 08:36:49.997304349 +0000
@@ -185,7 +185,7 @@ get_default_magic(void)
 		free(default_magic);
 		default_magic = NULL;
 	}
-	if ((home = getenv("HOME")) == NULL)
+	if ((home = secure_getenv("HOME")) == NULL)
 		return MAGIC;
 
 	if (asprintf(&hmagicpath, "%s/.magic.mgc", home) < 0)
@@ -222,20 +222,20 @@ out:
 	}
 
 	/* Before anything else, try to get a magic file from user HOME */
-	if ((home = getenv("HOME")) != NULL)
+	if ((home = secure_getenv("HOME")) != NULL)
 		_w32_append_path(&hmagicpath, "%s%s", home, hmagic);
 
 	/* First, try to get a magic file from user-application data */
-	if ((home = getenv("LOCALAPPDATA")) != NULL)
+	if ((home = secure_getenv("LOCALAPPDATA")) != NULL)
 		_w32_append_path(&hmagicpath, "%s%s", home, hmagic);
 
 	/* Second, try to get a magic file from the user profile data */
-	if ((home = getenv("USERPROFILE")) != NULL)
+	if ((home = secure_getenv("USERPROFILE")) != NULL)
 		_w32_append_path(&hmagicpath,
 		    "%s/Local Settings/Application Data%s", home, hmagic);
 
 	/* Third, try to get a magic file from Common Files */
-	if ((home = getenv("COMMONPROGRAMFILES")) != NULL)
+	if ((home = secure_getenv("COMMONPROGRAMFILES")) != NULL)
 		_w32_append_path(&hmagicpath, "%s%s", home, hmagic);
 
 	/* Fourth, try to get magic file relative to exe location */
@@ -256,7 +256,7 @@ magic_getpath(const char *magicfile, int
 	if (magicfile != NULL)
 		return magicfile;
 
-	magicfile = getenv("MAGIC");
+	magicfile = secure_getenv("MAGIC");
 	if (magicfile != NULL)
 		return magicfile;