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- (dtucker) [openbsd-compat/setenv.c] Sync changes from OpenBSD setenv.c 

revs 1.7 - 1.9.
This commit is contained in:
Darren Tucker 2005-11-10 10:38:45 +11:00
parent 32b531067d
commit 063ba7455f
2 changed files with 28 additions and 42 deletions
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8
ChangeLog
View File

@ -1,9 +1,11 @@
20051110
- (dtucker) [openbsd-compat/getenv.c] Merge changes for __findenv from
- (dtucker) [openbsd-compat/setenv.c] Merge changes for __findenv from
OpenBSD getenv.c revs 1.4 - 1.8 (ANSIfication of arguments, removal of
"register").
- (dtucker) [openbsd-compat/getenv.c] Make __findenv static, remove
- (dtucker) [openbsd-compat/setenv.c] Make __findenv static, remove
unnecessary prototype.
- (dtucker) [openbsd-compat/setenv.c] Sync changes from OpenBSD setenv.c
revs 1.7 - 1.9.
20051105
- (djm) OpenBSD CVS Sync
@ -3246,4 +3248,4 @@
- (djm) Trim deprecated options from INSTALL. Mention UsePAM
- (djm) Fix quote handling in sftp; Patch from admorten AT umich.edu
$Id: ChangeLog,v 1.3956 2005/11/09 23:13:06 dtucker Exp $
$Id: ChangeLog,v 1.3957 2005/11/09 23:38:45 dtucker Exp $

62
openbsd-compat/setenv.c
View File

@ -1,5 +1,6 @@
/* OPENBSD ORIGINAL: lib/libc/stdlib/setenv.c */
/* $OpenBSD: setenv.c,v 1.9 2005/08/08 08:05:37 espie Exp $ */
/*
* Copyright (c) 1987 Regents of the University of California.
* All rights reserved.
@ -32,15 +33,12 @@
#include "includes.h"
#if !defined(HAVE_SETENV) || !defined(HAVE_UNSETENV)
#if defined(LIBC_SCCS) && !defined(lint)
static char *rcsid = "$OpenBSD: setenv.c,v 1.6 2003/06/02 20:18:38 millert Exp $";
#endif /* LIBC_SCCS and not lint */
#include <stdlib.h>
#include <string.h>
/* OpenSSH Portable: __findenv is from getenv.c rev 1.8, made static */
extern char **environ;
/* OpenSSH Portable: __findenv is from getenv.c rev 1.8, made static */
/*
* __findenv --
* Returns pointer to value associated with name, if any, else NULL.
@ -80,14 +78,10 @@ __findenv(const char *name, int *offset)
* "value". If rewrite is set, replace any current value.
*/
int
setenv(name, value, rewrite)
register const char *name;
register const char *value;
int rewrite;
setenv(const char *name, const char *value, int rewrite)
{
extern char **environ;
static int alloced; /* if allocated space before */
register char *C;
static char **lastenv; /* last value of environ */
char *C;
int l_value, offset;
if (*value == '=') /* no `=' in value */
@ -102,30 +96,23 @@ setenv(name, value, rewrite)
return (0);
}
} else { /* create new slot */
register int cnt;
register char **P;
size_t cnt;
char **P;
for (P = environ, cnt = 0; *P; ++P, ++cnt);
if (alloced) { /* just increase size */
P = (char **)realloc((void *)environ,
(size_t)(sizeof(char *) * (cnt + 2)));
if (!P)
return (-1);
environ = P;
}
else { /* get new space */
alloced = 1; /* copy old entries into it */
P = (char **)malloc((size_t)(sizeof(char *) *
(cnt + 2)));
if (!P)
return (-1);
memmove(P, environ, cnt * sizeof(char *));
environ = P;
}
environ[cnt + 1] = NULL;
for (P = environ; *P != NULL; P++)
;
cnt = P - environ;
P = (char **)realloc(lastenv, sizeof(char *) * (cnt + 2));
if (!P)
return (-1);
if (lastenv != environ)
memcpy(P, environ, cnt * sizeof(char *));
lastenv = environ = P;
offset = cnt;
environ[cnt + 1] = NULL;
}
for (C = (char *)name; *C && *C != '='; ++C); /* no `=' in name */
for (C = (char *)name; *C && *C != '='; ++C)
; /* no `=' in name */
if (!(environ[offset] = /* name + `=' + value */
malloc((size_t)((int)(C - name) + l_value + 2))))
return (-1);
@ -143,15 +130,12 @@ setenv(name, value, rewrite)
* Delete environmental variable "name".
*/
void
unsetenv(name)
const char *name;
unsetenv(const char *name)
{
extern char **environ;
register char **P;
char **P;
int offset;
char *__findenv();
while (__findenv(name, &offset)) /* if set multiple times */
while (__findenv(name, &offset)) /* if set multiple times */
for (P = &environ[offset];; ++P)
if (!(*P = *(P + 1)))
break;