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-rw-r--r--kdm/backend/util.c637
1 files changed, 0 insertions, 637 deletions
diff --git a/kdm/backend/util.c b/kdm/backend/util.c
deleted file mode 100644
index 7dd58f031..000000000
--- a/kdm/backend/util.c
+++ /dev/null
@@ -1,637 +0,0 @@
-/*
-
-Copyright 1989, 1998 The Open Group
-Copyright 2000-2005 Oswald Buddenhagen <[email protected]>
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of a copyright holder shall
-not be used in advertising or otherwise to promote the sale, use or
-other dealings in this Software without prior written authorization
-from the copyright holder.
-
-*/
-
-/*
- * xdm - display manager daemon
- * Author: Keith Packard, MIT X Consortium
- *
- * various utility routines
- */
-
-#include "dm.h"
-#include "dm_auth.h"
-#include "dm_error.h"
-
-#include <string.h>
-#include <unistd.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#if 0 /*def USG; this was hpux once upon a time */
-# define NEED_UTSNAME
-#endif
-
-#ifdef NEED_UTSNAME
-# include <sys/utsname.h>
-#endif
-
-void *
-Calloc( size_t nmemb, size_t size )
-{
- void *ret;
-
- if (!(ret = calloc( nmemb, size )))
- LogOutOfMem();
- return ret;
-}
-
-void *
-Malloc( size_t size )
-{
- void *ret;
-
- if (!(ret = malloc( size )))
- LogOutOfMem();
- return ret;
-}
-
-void *
-Realloc( void *ptr, size_t size )
-{
- void *ret;
-
- if (!(ret = realloc( ptr, size )) && size)
- LogOutOfMem();
- return ret;
-}
-
-int
-StrCmp( const char *s1, const char *s2 )
-{
- if (s1 == s2)
- return 0;
- if (!s1)
- return -1;
- if (!s2)
- return 1;
- return strcmp( s1, s2 );
-}
-
-void
-WipeStr( char *str )
-{
- if (str) {
- bzero( str, strlen( str ) );
- free( str );
- }
-}
-
-#ifndef HAVE_STRNLEN
-int
-StrNLen( const char *s, int max )
-{
- unsigned l;
-
- for (l = 0; l < (unsigned)max && s[l]; l++);
- return l;
-}
-#endif
-
-/* duplicate src; wipe & free old dst string */
-int
-ReStrN( char **dst, const char *src, int len )
-{
- char *ndst = 0;
-
- if (src) {
- if (len < 0)
- len = strlen( src );
- if (*dst && !memcmp( *dst, src, len ) && !(*dst)[len])
- return 1;
- if (!(ndst = Malloc( len + 1 ))) {
- WipeStr( *dst );
- *dst = 0;
- return 0;
- }
- memcpy( ndst, src, len );
- ndst[len] = 0;
- }
- WipeStr( *dst ); /* make an option, if we should become heavily used */
- *dst = ndst;
- return 2;
-}
-
-int
-ReStr( char **dst, const char *src )
-{
- return ReStrN( dst, src, -1 );
-}
-
-/* duplicate src */
-int
-StrNDup( char **dst, const char *src, int len )
-{
- if (src) {
- if (len < 0)
- len = strlen( src );
- if (!(*dst = Malloc( len + 1 )))
- return 0;
- memcpy( *dst, src, len );
- (*dst)[len] = 0;
- } else
- *dst = 0;
- return 1;
-}
-
-int
-StrDup( char **dst, const char *src )
-{
- return StrNDup( dst, src, -1 );
-}
-
-/* append any number of strings to dst */
-int
-StrApp( char **dst, ... )
-{
- int len;
- char *bk, *pt, *dp;
- va_list va;
-
- len = 1;
- if (*dst)
- len += strlen( *dst );
- va_start( va, dst );
- for (;;) {
- pt = va_arg( va, char * );
- if (!pt)
- break;
- len += strlen( pt );
- }
- va_end( va );
- if (!(bk = Malloc( len ))) {
- if (*dst) {
- free( *dst );
- *dst = 0;
- }
- return 0;
- }
- dp = bk;
- if (*dst) {
- len = strlen( *dst );
- memcpy( dp, *dst, len );
- dp += len;
- free( *dst );
- }
- va_start( va, dst );
- for (;;) {
- pt = va_arg( va, char * );
- if (!pt)
- break;
- len = strlen( pt );
- memcpy( dp, pt, len );
- dp += len;
- }
- va_end( va );
- *dp = '\0';
- *dst = bk;
- return 1;
-}
-
-
-char **
-initStrArr( char **arr )
-{
- if (!arr && (arr = Malloc( sizeof(char *) )))
- arr[0] = 0;
- return arr;
-}
-
-int
-arrLen( char **arr )
-{
- int nu = 0;
- if (arr)
- for (; arr[nu]; nu++);
- return nu;
-}
-
-static char **
-extStrArr( char **arr, char ***strp )
-{
- char **rarr;
- int nu;
-
- nu = arrLen( arr );
- if ((rarr = Realloc( arr, sizeof(char *) * (nu + 2) ))) {
- rarr[nu + 1] = 0;
- *strp = rarr + nu;
- return rarr;
- }
- freeStrArr( arr );
- return 0;
-}
-
-char **
-addStrArr( char **arr, const char *str, int len )
-{
- char **strp;
-
- if ((arr = extStrArr( arr, &strp ))) {
- if (StrNDup( strp, str, len ))
- return arr;
- freeStrArr( arr );
- }
- return 0;
-}
-
-char **
-xCopyStrArr( int rn, char **arr )
-{
- char **rarr;
- int nu;
-
- nu = arrLen( arr );
- if ((rarr = Calloc( sizeof(char *), nu + rn + 1 )))
- memcpy( rarr + rn, arr, sizeof(char *) * nu );
- return rarr;
-}
-
-void
-freeStrArr( char **arr )
-{
- char **a;
-
- if (arr) {
- for (a = arr; *a; a++)
- free( *a );
- free( arr );
- }
-}
-
-
-char **
-parseArgs( char **argv, const char *string )
-{
- const char *word;
- char **strp, *str;
- int wlen;
-
- if (!(argv = initStrArr( argv )))
- return 0;
- while (*string) {
- if (isspace( *string )) {
- string++;
- continue;
- }
- word = string;
- wlen = 0;
- do {
- if (*string == '\\') {
- if (!*++string)
- string--;
- wlen++;
- } else if (*string == '\'') {
- while (*++string != '\'' && *string)
- wlen++;
- } else if (*string == '"') {
- while (*++string != '"' && *string) {
- if (*string == '\\') {
- if (!*++string)
- string--;
- }
- wlen++;
- }
- } else
- wlen++;
- } while (*++string && !isspace( *string ));
- if (!(argv = extStrArr( argv, &strp )))
- return 0;
- if (!(*strp = str = Malloc( wlen + 1 ))) {
- freeStrArr( argv );
- return 0;
- }
- do {
- if (*word == '\\') {
- if (!*++word)
- word--;
- *str++ = *word;
- } else if (*word == '\'') {
- while (*++word != '\'' && *word)
- *str++ = *word;
- } else if (*word == '"') {
- while (*++word != '"' && *word) {
- if (*word == '\\') {
- if (!*++word)
- word--;
- }
- *str++ = *word;
- }
- } else
- *str++ = *word;
- } while (*++word && !isspace( *word ));
- *str = 0;
- }
- return argv;
-}
-
-
-const char *
-getEnv( char **e, const char *name )
-{
- if (e) {
- int l = strlen( name );
- for (; *e; e++)
- if (!memcmp( *e, name, l ) && (*e)[l] == '=')
- return (*e) + l + 1;
- }
- return 0;
-}
-
-char **
-setEnv( char **e, const char *name, const char *value )
-{
- char **new, **old;
- char *newe;
- int envsize;
- int l;
-
-#ifdef _AIX
- /* setpenv() depends on "SYSENVIRON:", not "SYSENVIRON:=" */
- if (!value) {
- if (!StrDup( &newe, name ))
- return e;
- } else
-#endif
- {
- newe = 0;
- if (!StrApp( &newe, name, "=", value, (char *)0 ))
- return e;
- }
- envsize = 0;
- if (e) {
- l = strlen( name );
- for (old = e; *old; old++)
- if (!memcmp( *old, name, l ) && ((*old)[l] == '=' || !(*old)[l]))
- {
- free( *old );
- *old = newe;
- return e;
- }
- envsize = old - e;
- }
- if (!(new = (char **)
- Realloc( (char *)e, (unsigned)((envsize + 2) * sizeof(char *)) )))
- {
- free( newe );
- return e;
- }
- new[envsize] = newe;
- new[envsize + 1] = 0;
- return new;
-}
-
-char **
-putEnv( const char *string, char **env )
-{
- char *n;
- char *b;
-
- if (!(b = strchr( string, '=' )))
- return NULL;
- if (!StrNDup( &n, string, b - string ))
- return NULL;
- env = setEnv( env, n, b + 1 );
- free( n );
- return env;
-}
-
-static int
-GetHostname( char *buf, int maxlen )
-{
- int len;
-
-#ifdef NEED_UTSNAME
- /*
- * same host name crock as in server and xinit.
- */
- struct utsname name;
-
- uname( &name );
- len = strlen( name.nodename );
- if (len >= maxlen) len = maxlen - 1;
- memcpy( buf, name.nodename, len );
- buf[len] = '\0';
-#else
- buf[0] = '\0';
- (void)gethostname( buf, maxlen );
- buf[maxlen - 1] = '\0';
- len = strlen( buf );
-#endif /* NEED_UTSNAME */
- return len;
-}
-
-static char localHostbuf[256];
-static int gotLocalHostname;
-
-const char *
-localHostname( void )
-{
- if (!gotLocalHostname)
- {
- GetHostname( localHostbuf, sizeof(localHostbuf) - 1 );
- gotLocalHostname = 1;
- }
- return localHostbuf;
-}
-
-static int
-AtomicIO( ssize_t (*f)( int, void *, size_t ), int fd, void *buf, int count )
-{
- int ret, rlen;
-
- for (rlen = 0; rlen < count; ) {
- dord:
- ret = f( fd, (void *)((char *)buf + rlen), count - rlen );
- if (ret < 0) {
- if (errno == EINTR)
- goto dord;
- if (errno == EAGAIN)
- break;
- return -1;
- }
- if (!ret)
- break;
- rlen += ret;
- }
- return rlen;
-}
-
-int
-Reader( int fd, void *buf, int count )
-{
- return AtomicIO( read, fd, buf, count );
-}
-
-int
-Writer( int fd, const void *buf, int count )
-{
- return AtomicIO( (ssize_t(*)( int, void *, size_t ))write,
- fd, (void *)buf, count );
-}
-
-int
-fGets( char *buf, int max, FILE *f )
-{
- int len;
-
- if (!fgets( buf, max, f ))
- return -1;
- len = strlen( buf );
- if (len && buf[len - 1] == '\n')
- buf[--len] = 0;
- return len;
-}
-
-time_t
-mTime( const char *fn )
-{
- struct stat st;
-
- if (stat( fn, &st ))
- return -1;
- else
- return st.st_mtime;
-}
-
-void
-randomStr( char *s )
-{
- static const char letters[] =
- "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
- unsigned i, rn = secureRandom();
-
- for (i = 0; i < 6; i++) {
- *s++ = letters[rn % 62];
- rn /= 62;
- }
- *s = 0;
-}
-
-static int
-StrNChrCnt( const char *s, int slen, char c )
-{
- int i, cnt;
-
- for (i = cnt = 0; i < slen && s[i]; i++)
- if (s[i] == c)
- cnt++;
- return cnt;
-}
-
-/* X -from ip6-addr does not work here, so i don't know whether this is needed.
-#define IP6_MAGIC
-*/
-
-void
-ListSessions( int flags, struct display *d, void *ctx,
- void (*emitXSess)( struct display *, struct display *, void * ),
- void (*emitTTYSess)( STRUCTUTMP *, struct display *, void * ) )
-{
- struct display *di;
-#ifdef IP6_MAGIC
- int le, dot;
-#endif
-#ifdef BSD_UTMP
- int fd;
- struct utmp ut[1];
-#else
- STRUCTUTMP *ut;
-#endif
-
- for (di = displays; di; di = di->next)
- if (((flags & lstRemote) || (di->displayType & d_location) == dLocal) &&
- (di->status == remoteLogin ||
- ((flags & lstPassive) ? di->status == running : di->userSess >= 0)))
- emitXSess( di, d, ctx );
-
- if (!(flags & lstTTY))
- return;
-
-#ifdef BSD_UTMP
- if ((fd = open( UTMP_FILE, O_RDONLY )) < 0)
- return;
- while (Reader( fd, ut, sizeof(ut[0]) ) == sizeof(ut[0])) {
- if (*ut->ut_user) { /* no idea how to list passive TTYs on BSD */
-#else
- SETUTENT();
- while ((ut = GETUTENT())) {
- if (ut->ut_type == USER_PROCESS
-# if 0 /* list passive TTYs at all? not too sensible, i think. */
- || ((flags & lstPassive) && ut->ut_type == LOGIN_PROCESS)
-# endif
- )
- {
-#endif
- if (*ut->ut_host) { /* from remote or x */
- if (!(flags & lstRemote))
- continue;
- } else {
- /* hack around broken konsole which does not set ut_host. */
- /* this check is probably linux-specific. */
- /* alternatively we could open the device and try VT_OPENQRY. */
- if (memcmp( ut->ut_line, "tty", 3 ) ||
- !isdigit( ut->ut_line[3] ))
- continue;
- }
- if (StrNChrCnt( ut->ut_line, sizeof(ut->ut_line), ':' ))
- continue; /* x login */
- switch (StrNChrCnt( ut->ut_host, sizeof(ut->ut_host), ':' )) {
- case 1: /* x terminal */
- continue;
- default:
-#ifdef IP6_MAGIC
- /* unknown - IPv6 makes things complicated */
- le = StrNLen( ut->ut_host, sizeof(ut->ut_host) );
- /* cut off screen number */
- for (dot = le; ut->ut_host[--dot] != ':'; )
- if (ut->ut_host[dot] == '.') {
- le = dot;
- break;
- }
- for (di = displays; di; di = di->next)
- if (!memcmp( di->name, ut->ut_host, le ) && !di->name[le])
- goto cont; /* x terminal */
- break;
- cont:
- continue;
- case 0: /* no x terminal */
-#endif
- break;
- }
- emitTTYSess( ut, d, ctx );
- }
- }
-#ifdef BSD_UTMP
- close( fd );
-#else
- ENDUTENT();
-#endif
-}
-
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