passfile support

libraries/liblutil/Makefile.in

@@ -13,11 +13,11 @@ NT_OBJS = ntservice.o slapdmsg.res
 UNIX_SRCS = detach.c
 UNIX_OBJS = detach.o
 
-SRCS	= base64.c csn.c entropy.c sasl.c signal.c hash.c \
+SRCS	= base64.c csn.c entropy.c sasl.c signal.c hash.c passfile.c \
 	md5.c passwd.c sha1.c getpass.c lockf.c utils.c uuid.c sockpair.c \
 	@LIBSRCS@ $(@PLAT@_SRCS)
 
-OBJS	= base64.o csn.o entropy.o sasl.o signal.o hash.o \
+OBJS	= base64.o csn.o entropy.o sasl.o signal.o hash.o passfile.o \
 	md5.o passwd.o sha1.o getpass.o lockf.o utils.o uuid.o sockpair.o \
 	@LIBOBJS@ $(@PLAT@_OBJS)
 

libraries/liblutil/passfile.c

+/* $OpenLDAP$ */
+/*
+ * Copyright 2002 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/ctype.h>
+#include <ac/string.h>
+
+#ifdef HAVE_FSTAT
+#include <sys/types.h>
+#include <sys/stat.h>
+#endif /* HAVE_FSTAT */
+
+#include <lber.h>
+#include <lutil.h>
+
+/* Get a password from a file. */
+int
+lutil_get_filed_password(
+	const char *filename,
+	struct berval *passwd )
+{
+	int rc;
+	size_t nread, nleft, nr;
+	FILE *f = fopen( filename, "r" );
+
+	if( f == NULL ) {
+		perror( filename );
+		return -1;
+	}
+
+	passwd->bv_val = NULL;
+	passwd->bv_len = 4196;
+
+#ifdef HAVE_FSTAT
+	{
+		struct stat sb;
+		if ( fstat( fileno( f ), &sb ) == 0 ) {
+			if( sb.st_mode & 006 ) {
+				fprintf( stderr,
+					"Warning: Password file %s is publicly readable/writeable\n",
+					filename );
+			}
+
+			passwd->bv_len = sb.st_size;
+		}
+	}
+#endif /* HAVE_FSTAT */
+
+	passwd->bv_val = (char *) malloc( passwd->bv_len + 1 );
+	if( passwd->bv_val == NULL ) {
+		perror( filename );
+		return -1;
+	}
+
+	nread = 0;
+	nleft = passwd->bv_len;
+	do {
+		if( nleft == 0 ) {
+			/* double the buffer size */
+			char *p = (char *) realloc( passwd->bv_val,
+				2 * passwd->bv_len + 1 );
+			if( p == NULL ) {
+				free( passwd->bv_val );
+				passwd->bv_val = NULL;
+				passwd->bv_len = 0;
+				return -1;
+			}
+			nleft = passwd->bv_len;
+			passwd->bv_len *= 2;
+			passwd->bv_val = p;
+		}
+
+		nr = fread( &passwd->bv_val[nread], 1, nleft, f );
+
+		if( nr < nleft && ferror( f ) ) {
+			free( passwd->bv_val );
+			passwd->bv_val = NULL;
+			passwd->bv_len = 0;
+			return -1;
+		}
+
+		nread += nr;
+		nleft -= nr;
+	} while ( !feof(f) );
+
+	passwd->bv_len = nread;
+	passwd->bv_val[nread] = '\0';
+
+	fclose( f );
+	return 0;
+}