mirror of
https://github.com/ashinn/chibi-scheme.git
synced 2025-05-19 21:59:17 +02:00
20c62ffe4a
the ABI is incompatible we can't even necessarily refer to a global from within the bad library.
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/* env.c -- SRFI-98 environment interface */
|
|
/* Copyright (c) 2009-2012 Alex Shinn. All rights reserved. */
|
|
/* BSD-style license: http://synthcode.com/license.txt */
|
|
|
|
#ifdef __APPLE__
|
|
#include <crt_externs.h>
|
|
#define environ (*_NSGetEnviron())
|
|
#else
|
|
#ifndef PLAN9
|
|
extern char **environ;
|
|
#endif
|
|
#endif
|
|
|
|
#include <chibi/eval.h>
|
|
|
|
sexp sexp_get_environment_variable (sexp ctx, sexp self, sexp_sint_t n, sexp str) {
|
|
char *cstr;
|
|
if (! sexp_stringp(str))
|
|
return sexp_type_exception(ctx, self, SEXP_STRING, str);
|
|
cstr = getenv(sexp_string_data(str));
|
|
return cstr ? sexp_c_string(ctx, cstr, -1) : SEXP_FALSE;
|
|
}
|
|
|
|
sexp sexp_get_environment_variables (sexp ctx, sexp self, sexp_sint_t n) {
|
|
int i;
|
|
char **env, *cname, *cval;
|
|
sexp_gc_var3(res, name, val);
|
|
sexp_gc_preserve3(ctx, res, name, val);
|
|
res = SEXP_NULL;
|
|
#ifndef PLAN9
|
|
env = environ;
|
|
for (i=0; env[i]; i++) {
|
|
cname = env[i];
|
|
cval = strchr(cname, '=');
|
|
if (cval) {
|
|
name = sexp_c_string(ctx, cname, cval-cname);
|
|
val = sexp_c_string(ctx, cval+1, -1);
|
|
val = sexp_cons(ctx, name, val);
|
|
res = sexp_cons(ctx, val, res);
|
|
}
|
|
}
|
|
#endif
|
|
sexp_gc_release3(ctx);
|
|
return res;
|
|
}
|
|
|
|
sexp sexp_init_library (sexp ctx, sexp self, sexp_sint_t n, sexp env, const char* version, sexp_abi_identifier_t abi) {
|
|
if (!(sexp_version_compatible(ctx, version, sexp_version)
|
|
&& sexp_abi_compatible(ctx, abi, SEXP_ABI_IDENTIFIER)))
|
|
return SEXP_ABI_ERROR;
|
|
sexp_define_foreign(ctx, env, "get-environment-variable", 1, sexp_get_environment_variable);
|
|
sexp_define_foreign(ctx, env, "get-environment-variables", 0, sexp_get_environment_variables);
|
|
return SEXP_VOID;
|
|
}
|
|
|