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| author | Paul Eggert <eggert@cs.ucla.edu> | 2013-02-04 18:33:23 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2013-02-04 20:35:19 -0800 |
| commit | 7517e2fd5e24f47eed66f8390d49f807555f8770 (patch) | |
| tree | a9d2b824f7be01ea30324698cf1d79b775def295 /m4/secure_getenv.m4 | |
| parent | 4a82904680e6974db7b9eed6a3ed4c6eb24ecbe4 (diff) | |
| download | gnulib-7517e2fd5e24f47eed66f8390d49f807555f8770.tar.gz | |
secure_getenv: new module
* MODULES.html.sh (Extra functions based on ANSI C 89):
Add secure_getenv.
* doc/glibc-functions/secure_getenv.texi: New file.
* doc/gnulib.texi: Include it.
* lib/secure_getenv.c, m4/secure_getenv.m4, modules/secure_getenv:
New files.
* lib/stdlib.in.h (secure_getenv): New decl.
* m4/stdlib_h.m4 (gl_STDLIB_H, gl_STDLIB_H_DEFAULTS):
* modules/stdlib (stdlib.h):
Add secure_getenv checks.
Diffstat (limited to 'm4/secure_getenv.m4')
| -rw-r--r-- | m4/secure_getenv.m4 | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/m4/secure_getenv.m4 b/m4/secure_getenv.m4 new file mode 100644 index 0000000000..1ab5b2d848 --- /dev/null +++ b/m4/secure_getenv.m4 @@ -0,0 +1,22 @@ +# Look up an environment variable more securely. +dnl Copyright 2013 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_SECURE_GETENV], +[ + dnl Persuade glibc <stdlib.h> to declare secure_getenv(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_CHECK_FUNCS_ONCE([secure_getenv]) + if test $ac_cv_func_secure_getenv = no; then + HAVE_SECURE_GETENV=0 + fi +]) + +# Prerequisites of lib/secure_getenv.c. +AC_DEFUN([gl_PREREQ_SECURE_GETENV], [ + AC_CHECK_FUNCS([__secure_getenv]) +]) |