Rework setenv, getenv and friends per the latest glibc code, but cleaned

up for readability.   Merge in putenv.  Add clearenv as a side effect.
 -Erik

1 files changed, 0 insertions, 65 deletions

diff --git a/libc/stdlib/putenv.c b/libc/stdlib/putenv.c
deleted file mode 100644
index b5a202bfd..000000000
--- a/libc/stdlib/putenv.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/* Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk>
- * This file is part of the Linux-8086 C library and is distributed
- * under the GNU Library General Public License.
- */
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <malloc.h>
-
-#define ADD_NUM 4
-
-int putenv (char *var)
-{
-	static char **mall_env = 0;
-	static int extras = 0;
-	char **p, **d;
-	char *r;
-	int len;
-
-	r = strchr(var, '=');
-	if (r == 0)
-		len = strlen(var);
-	else
-		len = r - var;
-
-	if (!__environ) {
-		__environ = (char **) malloc(ADD_NUM * sizeof(char *));
-		memset(__environ, 0, sizeof(char *) * ADD_NUM);
-
-		extras = ADD_NUM;
-	}
-
-	for (p = __environ; *p; p++) {
-		if (memcmp(var, *p, len) == 0 && (*p)[len] == '=') {
-			while ((p[0] = p[1]))
-				p++;
-			extras++;
-			break;
-		}
-	}
-	if (r == 0)
-		return 0;
-	if (extras <= 0) {			/* Need more space */
-		d = malloc((p - __environ + 1 + ADD_NUM) * sizeof(char *));
-
-		if (d == 0)
-			return -1;
-
-		memcpy((void *) d, (void *) __environ,
-
-			   (p - __environ + 1) * sizeof(char *));
-		p = d + (p - __environ);
-		extras = ADD_NUM;
-
-		if (mall_env)
-			free(mall_env);
-		__environ = d;
-		mall_env = d;
-	}
-	*p++ = strdup((char *) var);
-	*p = '\0';
-	extras--;
-
-	return 0;
-}