1 files changed, 0 insertions, 253 deletions
diff --git a/libmisc/env.c b/libmisc/env.c
deleted file mode 100644
index fc6dbce..0000000
--- a/libmisc/env.c
+++ /dev/null
@@ -1,253 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 1989 - 1992, Julianne Frances Haugh
- * SPDX-FileCopyrightText: 1996 - 1999, Marek Michałkiewicz
- * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
- * SPDX-FileCopyrightText: 2008 - 2009, Nicolas François
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <config.h>
-
-#ident "$Id$"
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "prototypes.h"
-#include "defines.h"
-#include "shadowlog.h"
-/*
- * NEWENVP_STEP must be a power of two.  This is the number
- * of (char *) pointers to allocate at a time, to avoid using
- * realloc() too often.
- */
-#define NEWENVP_STEP 16
-size_t newenvc = 0;
-/*@null@*/char **newenvp = NULL;
-extern char **environ;
-
-static const char *const forbid[] = {
-	"_RLD_=",
-	"BASH_ENV=",		/* GNU creeping featurism strikes again... */
-	"ENV=",
-	"HOME=",
-	"IFS=",
-	"KRB_CONF=",
-	"LD_",			/* anything with the LD_ prefix */
-	"LIBPATH=",
-	"MAIL=",
-	"NLSPATH=",
-	"PATH=",
-	"SHELL=",
-	"SHLIB_PATH=",
-	(char *) 0
-};
-
-/* these are allowed, but with no slashes inside
-   (to work around security problems in GNU gettext) */
-static const char *const noslash[] = {
-	"LANG=",
-	"LANGUAGE=",
-	"LC_",			/* anything with the LC_ prefix */
-	(char *) 0
-};
-
-/*
- * initenv() must be called once before using addenv().
- */
-void initenv (void)
-{
-	newenvp = (char **) xmalloc (NEWENVP_STEP * sizeof (char *));
-	*newenvp = NULL;
-}
-
-
-void addenv (const char *string, /*@null@*/const char *value)
-{
-	char *cp, *newstring;
-	size_t i;
-	size_t n;
-
-	if (NULL != value) {
-		size_t len = strlen (string) + strlen (value) + 2;
-		int wlen;
-		newstring = xmalloc (len);
-		wlen = snprintf (newstring, len, "%s=%s", string, value);
-		assert (wlen == (int) len -1);
-	} else {
-		newstring = xstrdup (string);
-	}
-
-	/*
-	 * Search for a '=' character within the string and if none is found
-	 * just ignore the whole string.
-	 */
-
-	cp = strchr (newstring, '=');
-	if (NULL == cp) {
-		free (newstring);
-		return;
-	}
-
-	n = (size_t) (cp - newstring);
-
-	/*
-	 * If this environment variable is already set, change its value.
-	 */
-	for (i = 0; i < newenvc; i++) {
-		if (   (strncmp (newstring, newenvp[i], n) == 0)
-		    && (('=' == newenvp[i][n]) || ('\0' == newenvp[i][n]))) {
-			break;
-		}
-	}
-
-	if (i < newenvc) {
-		free (newenvp[i]);
-		newenvp[i] = newstring;
-		return;
-	}
-
-	/*
-	 * Otherwise, save the new environment variable
-	 */
-	newenvp[newenvc++] = newstring;
-
-	/*
-	 * And extend the environment if needed.
-	 */
-
-	/*
-	 * Check whether newenvc is a multiple of NEWENVP_STEP.
-	 * If so we have to resize the vector.
-	 * the expression (newenvc & (NEWENVP_STEP - 1)) == 0
-	 * is equal to    (newenvc %  NEWENVP_STEP) == 0
-	 * as long as NEWENVP_STEP is a power of 2.
-	 */
-
-	if ((newenvc & (NEWENVP_STEP - 1)) == 0) {
-		char **__newenvp;
-		size_t newsize;
-
-		/*
-		 * If the resize operation succeeds we can
-		 * happily go on, else print a message.
-		 */
-
-		newsize = (newenvc + NEWENVP_STEP) * sizeof (char *);
-		__newenvp = (char **) realloc (newenvp, newsize);
-
-		if (NULL != __newenvp) {
-			/*
-			 * If this is our current environment, update
-			 * environ so that it doesn't point to some
-			 * free memory area (realloc() could move it).
-			 */
-			if (environ == newenvp) {
-				environ = __newenvp;
-			}
-			newenvp = __newenvp;
-		} else {
-			(void) fputs (_("Environment overflow\n"), log_get_logfd());
-			newenvc--;
-			free (newenvp[newenvc]);
-		}
-	}
-
-	/*
-	 * The last entry of newenvp must be NULL
-	 */
-
-	newenvp[newenvc] = NULL;
-}
-
-
-/*
- * set_env - copy command line arguments into the environment
- */
-void set_env (int argc, char *const *argv)
-{
-	int noname = 1;
-	char variable[1024];
-	char *cp;
-
-	for (; argc > 0; argc--, argv++) {
-		if (strlen (*argv) >= sizeof variable) {
-			continue;	/* ignore long entries */
-		}
-
-		cp = strchr (*argv, '=');
-		if (NULL == cp) {
-			int wlen;
-			wlen = snprintf (variable, sizeof variable, "L%d", noname);
-			assert (wlen < (int) sizeof(variable));
-			noname++;
-			addenv (variable, *argv);
-		} else {
-			const char *const *p;
-
-			for (p = forbid; NULL != *p; p++) {
-				if (strncmp (*argv, *p, strlen (*p)) == 0) {
-					break;
-				}
-			}
-
-			if (NULL != *p) {
-				strncpy (variable, *argv, (size_t)(cp - *argv));
-				variable[cp - *argv] = '\0';
-				printf (_("You may not change $%s\n"),
-					variable);
-				continue;
-			}
-
-			addenv (*argv, NULL);
-		}
-	}
-}
-
-/*
- * sanitize_env - remove some nasty environment variables
- * If you fall into a total paranoia, you should call this
- * function for any root-setuid program or anything the user
- * might change the environment with. 99% useless as almost
- * all modern Unixes will handle setuid executables properly,
- * but... I feel better with that silly precaution. -j.
- */
-
-void sanitize_env (void)
-{
-	char **envp = environ;
-	const char *const *bad;
-	char **cur;
-	char **move;
-
-	for (cur = envp; NULL != *cur; cur++) {
-		for (bad = forbid; NULL != *bad; bad++) {
-			if (strncmp (*cur, *bad, strlen (*bad)) == 0) {
-				for (move = cur; NULL != *move; move++) {
-					*move = *(move + 1);
-				}
-				cur--;
-				break;
-			}
-		}
-	}
-
-	for (cur = envp; NULL != *cur; cur++) {
-		for (bad = noslash; NULL != *bad; bad++) {
-			if (strncmp (*cur, *bad, strlen (*bad)) != 0) {
-				continue;
-			}
-			if (strchr (*cur, '/') == NULL) {
-				continue;	/* OK */
-			}
-			for (move = cur; NULL != *move; move++) {
-				*move = *(move + 1);
-			}
-			cur--;
-			break;
-		}
-	}
-}
-