file/file-secure_getenv.patch

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---
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;