emo/shadow
1
0
Fork 0
Code Issues Pull Requests Packages Releases Activity

[svn-upgrade] Integrating new upstream version, shadow (4.0.8)

Browse Source
This commit is contained in:
nekral-guest
2007-10-07 11:46:07 +00:00
parent 0ee095abd8
commit 8e167d28af
414 changed files with 21641 additions and 27358 deletions
Download Patch File Download Diff File Expand all files Collapse all files

214
lib/shadow.c
View File

@@ -30,41 +30,32 @@
#include <config.h>
/* Newer versions of Linux libc already have shadow support. */
#if defined(SHADOWPWD) && !defined(HAVE_GETSPNAM) /*{*/
#if defined(SHADOWPWD) && !defined(HAVE_GETSPNAM) /*{ */
#include "rcsid.h"
RCSID("$Id: shadow.c,v 1.7 2003/05/03 16:14:24 kloczek Exp $")
RCSID ("$Id: shadow.c,v 1.9 2005/04/06 04:26:05 kloczek Exp $")
#include <sys/types.h>
#include "prototypes.h"
#include "defines.h"
#include <stdio.h>
#ifdef NDBM
#include <ndbm.h>
#include <fcntl.h>
DBM *sp_dbm;
int sp_dbm_mode = -1;
static int dbmopened;
static int dbmerror;
#endif
#ifdef USE_NIS
static int nis_used;
static int nis_ignore;
static enum { native, start, middle, native2 } nis_state;
static int nis_bound;
static char *nis_domain;
static char *nis_key;
static int nis_keylen;
static char *nis_val;
static int nis_vallen;
static int nis_used;
static int nis_ignore;
static enum { native, start, middle, native2 } nis_state;
static int nis_bound;
static char *nis_domain;
static char *nis_key;
static int nis_keylen;
static char *nis_val;
static int nis_vallen;
#define IS_NISCHAR(c) ((c)=='+')
#endif
static FILE *shadow;
static char spwbuf[BUFSIZ];
static struct spwd spwd;
static FILE *shadow;
static char spwbuf[BUFSIZ];
static struct spwd spwd;
#define FIELDS 9
#define OFIELDS 5
@@ -75,10 +66,9 @@ static struct spwd spwd;
* __setspNIS - turn on or off NIS searches
*/
void
__setspNIS(int flag)
void __setspNIS (int flag)
{
nis_ignore = ! flag;
nis_ignore = !flag;
if (nis_ignore)
nis_used = 0;
@@ -88,8 +78,7 @@ __setspNIS(int flag)
* bind_nis - bind to NIS server
*/
static int
bind_nis(void)
static int bind_nis (void)
{
if (yp_get_default_domain (&nis_domain))
return -1;
@@ -103,84 +92,49 @@ bind_nis(void)
* setspent - initialize access to shadow text and DBM files
*/
void
setspent(void)
void setspent (void)
{
if (shadow)
rewind(shadow);
rewind (shadow);
else
shadow = fopen(SHADOW_FILE, "r");
shadow = fopen (SHADOW_FILE, "r");
#ifdef USE_NIS
nis_state = native;
#endif
/*
* Attempt to open the DBM files if they have never been opened
* and an error has never been returned.
*/
#ifdef NDBM
if (! dbmerror && ! dbmopened) {
int mode;
char dbmfiles[BUFSIZ];
strcpy (dbmfiles, SHADOW_PAG_FILE);
if (sp_dbm_mode == -1)
mode = O_RDWR;
else
mode = (sp_dbm_mode == O_RDWR) ? O_RDWR:O_RDONLY;
if (! (sp_dbm = dbm_open (SHADOW_FILE, mode, 0)))
dbmerror = 1;
else
dbmopened = 1;
}
#endif
}
/*
* endspent - terminate access to shadow text and DBM files
*/
void
endspent(void)
void endspent (void)
{
if (shadow)
(void) fclose (shadow);
shadow = (FILE *) 0;
#ifdef NDBM
if (dbmopened && sp_dbm) {
dbm_close (sp_dbm);
sp_dbm = 0;
}
dbmopened = 0;
dbmerror = 0;
#endif
}
/*
* my_sgetspent - convert string in shadow file format to (struct spwd *)
*/
static struct spwd *
my_sgetspent(const char *string)
static struct spwd *my_sgetspent (const char *string)
{
char *fields[FIELDS];
char *cp;
char *cpp;
int i;
char *fields[FIELDS];
char *cp;
char *cpp;
int i;
/*
* Copy string to local buffer. It has to be tokenized and we
* have to do that to our private copy.
*/
if (strlen(string) >= sizeof spwbuf)
if (strlen (string) >= sizeof spwbuf)
return 0;
strcpy(spwbuf, string);
strcpy (spwbuf, string);
if ((cp = strrchr (spwbuf, '\n')))
*cp = '\0';
@@ -190,7 +144,7 @@ my_sgetspent(const char *string)
* FIELDS different fields.
*/
for (cp = spwbuf, i = 0;*cp && i < FIELDS;i++) {
for (cp = spwbuf, i = 0; *cp && i < FIELDS; i++) {
fields[i] = cp;
while (*cp && *cp != ':')
cp++;
@@ -199,7 +153,7 @@ my_sgetspent(const char *string)
*cp++ = '\0';
}
if (i == (FIELDS-1))
if (i == (FIELDS - 1))
fields[i++] = cp;
if ((cp && *cp) || (i != FIELDS && i != OFIELDS))
@@ -227,7 +181,7 @@ my_sgetspent(const char *string)
if ((spwd.sp_lstchg = strtol (fields[2], &cpp, 10)) == 0 && *cpp) {
#ifdef USE_NIS
if (! nis_used)
if (!nis_used)
return 0;
else
spwd.sp_lstchg = -1;
@@ -243,7 +197,7 @@ my_sgetspent(const char *string)
if ((spwd.sp_min = strtol (fields[3], &cpp, 10)) == 0 && *cpp) {
#ifdef USE_NIS
if (! nis_used)
if (!nis_used)
return 0;
else
spwd.sp_min = -1;
@@ -259,7 +213,7 @@ my_sgetspent(const char *string)
if ((spwd.sp_max = strtol (fields[4], &cpp, 10)) == 0 && *cpp) {
#ifdef USE_NIS
if (! nis_used)
if (!nis_used)
return 0;
else
spwd.sp_max = -1;
@@ -276,7 +230,7 @@ my_sgetspent(const char *string)
if (i == OFIELDS) {
spwd.sp_warn = spwd.sp_inact = spwd.sp_expire =
spwd.sp_flag = -1;
spwd.sp_flag = -1;
return &spwd;
}
@@ -287,7 +241,7 @@ my_sgetspent(const char *string)
if ((spwd.sp_warn = strtol (fields[5], &cpp, 10)) == 0 && *cpp) {
#ifdef USE_NIS
if (! nis_used)
if (!nis_used)
return 0;
else
spwd.sp_warn = -1;
@@ -304,7 +258,7 @@ my_sgetspent(const char *string)
if ((spwd.sp_inact = strtol (fields[6], &cpp, 10)) == 0 && *cpp) {
#ifdef USE_NIS
if (! nis_used)
if (!nis_used)
return 0;
else
spwd.sp_inact = -1;
@@ -321,7 +275,7 @@ my_sgetspent(const char *string)
if ((spwd.sp_expire = strtol (fields[7], &cpp, 10)) == 0 && *cpp) {
#ifdef USE_NIS
if (! nis_used)
if (!nis_used)
return 0;
else
spwd.sp_expire = -1;
@@ -338,7 +292,7 @@ my_sgetspent(const char *string)
if ((spwd.sp_flag = strtol (fields[8], &cpp, 10)) == 0 && *cpp) {
#ifdef USE_NIS
if (! nis_used)
if (!nis_used)
return 0;
else
spwd.sp_flag = -1;
@@ -355,13 +309,12 @@ my_sgetspent(const char *string)
* fgetspent - get an entry from a /etc/shadow formatted stream
*/
struct spwd *
fgetspent(FILE *fp)
struct spwd *fgetspent (FILE * fp)
{
char buf[BUFSIZ];
char *cp;
char buf[BUFSIZ];
char *cp;
if (! fp)
if (!fp)
return (0);
#ifdef USE_NIS
@@ -376,7 +329,7 @@ fgetspent(FILE *fp)
if (nis_ignore && IS_NISCHAR (buf[0]))
continue;
#endif
return my_sgetspent(buf);
return my_sgetspent (buf);
}
return 0;
}
@@ -385,19 +338,18 @@ fgetspent(FILE *fp)
* getspent - get a (struct spwd *) from the current shadow file
*/
struct spwd *
getspent(void)
struct spwd *getspent (void)
{
#ifdef USE_NIS
int nis_1_user = 0;
struct spwd *val;
char buf[BUFSIZ];
int nis_1_user = 0;
struct spwd *val;
char buf[BUFSIZ];
#endif
if (! shadow)
if (!shadow)
setspent ();
#ifdef USE_NIS
again:
again:
/*
* See if we are reading from the local file.
*/
@@ -409,7 +361,7 @@ again:
* right away if there is none.
*/
if (! (val = fgetspent (shadow)))
if (!(val = fgetspent (shadow)))
return 0;
/*
@@ -455,20 +407,20 @@ again:
}
if (nis_state == start) {
if (yp_first (nis_domain, "shadow.bynam", &nis_key,
&nis_keylen, &nis_val, &nis_vallen)) {
&nis_keylen, &nis_val, &nis_vallen)) {
nis_state = native2;
goto again;
}
nis_state = middle;
} else if (nis_state == middle) {
if (yp_next (nis_domain, "shadow.bynam", nis_key,
nis_keylen, &nis_key, &nis_keylen,
&nis_val, &nis_vallen)) {
nis_keylen, &nis_key, &nis_keylen,
&nis_val, &nis_vallen)) {
nis_state = native2;
goto again;
}
}
return my_sgetspent(nis_val);
return my_sgetspent (nis_val);
}
#else
return (fgetspent (shadow));
@@ -479,68 +431,42 @@ again:
* getspnam - get a shadow entry by name
*/
struct spwd *
getspnam(const char *name)
struct spwd *getspnam (const char *name)
{
struct spwd *sp;
#ifdef NDBM
datum key;
datum content;
#endif
struct spwd *sp;
#ifdef USE_NIS
char buf[BUFSIZ];
static char save_name[16];
int nis_disabled = 0;
char buf[BUFSIZ];
static char save_name[16];
int nis_disabled = 0;
#endif
setspent ();
#ifdef NDBM
/*
* If the DBM file are now open, create a key for this UID and
* try to fetch the entry from the database. A matching record
* will be unpacked into a static structure and returned to
* the user.
*/
if (dbmopened) {
key.dsize = strlen (name);
key.dptr = (char *) name;
content = dbm_fetch (sp_dbm, key);
if (content.dptr != 0) {
memcpy (spwbuf, content.dptr, content.dsize);
spw_unpack (spwbuf, content.dsize, &spwd);
endspent();
return &spwd;
}
}
#endif
#ifdef USE_NIS
/*
* Search the shadow.byname map for this user.
*/
if (! nis_ignore && ! nis_bound)
if (!nis_ignore && !nis_bound)
bind_nis ();
if (! nis_ignore && nis_bound) {
char *cp;
if (!nis_ignore && nis_bound) {
char *cp;
if (yp_match (nis_domain, "shadow.byname", name,
strlen (name), &nis_val, &nis_vallen) == 0) {
strlen (name), &nis_val, &nis_vallen) == 0) {
if (cp = strchr (nis_val, '\n'))
*cp = '\0';
nis_state = middle;
if ((sp = my_sgetspent(nis_val))) {
if ((sp = my_sgetspent (nis_val))) {
strcpy (save_name, sp->sp_namp);
nis_key = save_name;
nis_keylen = strlen (save_name);
}
endspent();
endspent ();
return sp;
} else
nis_state = native2;
@@ -567,9 +493,9 @@ getspnam(const char *name)
if (nis_disabled)
nis_ignore--;
#endif
endspent();
endspent ();
return (sp);
}
#else
extern int errno; /* warning: ANSI C forbids an empty source file */
#endif /*}*/
extern int errno; /* warning: ANSI C forbids an empty source file */
#endif /*} */