File: env_posix.c

package info (click to toggle)
gcc-avr 1%3A5.4.0%2BAtmel3.6.1-2
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 589,832 kB
  • sloc: ansic: 2,775,567; ada: 756,757; cpp: 723,977; f90: 117,673; asm: 66,896; makefile: 62,755; xml: 44,466; sh: 29,549; exp: 23,315; objc: 15,216; fortran: 10,901; pascal: 4,185; python: 4,093; perl: 2,969; awk: 2,811; ml: 2,385; cs: 879; yacc: 316; lex: 198; haskell: 112; lisp: 8
file content (40 lines) | stat: -rw-r--r-- 801 bytes parent folder | download | duplicates (3) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris windows

#include "runtime.h"
#include "array.h"
#include "arch.h"
#include "malloc.h"

extern Slice envs;

const byte*
runtime_getenv(const char *s)
{
	int32 i, j;
	intgo len;
	const byte *v, *bs;
	String* envv;
	int32 envc;

	bs = (const byte*)s;
	len = runtime_findnull(bs);
	envv = (String*)envs.__values;
	envc = envs.__count;
	for(i=0; i<envc; i++){
		if(envv[i].len <= len)
			continue;
		v = (const byte*)envv[i].str;
		for(j=0; j<len; j++)
			if(bs[j] != v[j])
				goto nomatch;
		if(v[len] != '=')
			goto nomatch;
		return v+len+1;
	nomatch:;
	}
	return nil;
}