149 lines
2.9 KiB
C
149 lines
2.9 KiB
C
/*++
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NONNULL.C
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Code for finding unused OPT_NONNULLs
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Copyright (C) 1997 Microsoft Corporation
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Created, 6/10/1997 by DavidCHR
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--*/
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#include "private.h"
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BOOL
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FindUnusedOptions( optionStruct *options,
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ULONG flags,
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/* OPTIONAL */ PCHAR prefix,
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PSAVEQUEUE pQueue ) {
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PCHAR newprefix;
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BOOL freeprefix;
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BOOL ret = TRUE;
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ULONG i;
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for ( i = 0 ; !ARRAY_TERMINATED( options+i ); i++ ) {
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if ( ( options[i].flags & OPT_MUTEX_MASK ) == OPT_SUBOPTION ) {
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OPTIONS_DEBUG( "%s: OPT_SUBSTRUCT. ", options[i].cmd );
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if (options[i].flags & OPT_RECURSE ) {
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/* suboptions must be reparsed. we recurse on this structure,
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copying the prefix into a newly allocated buffer. */
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OPTIONS_DEBUG( "descending into substructure.\n" );
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/* allocate the new prefix */
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if ( prefix ) {
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/* oldprefix:optionname = newprefix */
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newprefix = (PCHAR) malloc( ( strlen( prefix ) +
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strlen( options[i].cmd ) +
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2 /* : and \0 */ ) *
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sizeof( CHAR ) );
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if ( !newprefix ) {
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fprintf( stderr, "Failed to allocate new prefix-- cannot "
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"parse suboption %s:%s.\n", prefix, options[i].cmd );
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return FALSE;
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}
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sprintf( newprefix, "%s:%s", prefix, options[i].cmd );
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freeprefix = TRUE;
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} else {
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/* optionname = prefix */
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newprefix = options[i].cmd;
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freeprefix = FALSE;
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}
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ASSERT( newprefix != NULL );
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if ( !FindUnusedOptions( POPTU_CAST( options[i] )->optStruct,
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flags,
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newprefix,
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pQueue ) ) {
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ret = FALSE;
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}
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if ( freeprefix ) {
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free( newprefix );
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}
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} else {
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OPTIONS_DEBUG( "!OPT_RECURSE, so not descending.\n" );
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}
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continue;
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}
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if ( ( options[i].flags & OPT_NONNULL ) ||
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( options [i].flags & OPT_ENVIRONMENT ) ) {
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OPTIONS_DEBUG( "%s: OPT_NONNULL or OPT_ENV. pointer is 0x%x, ",
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options[i].cmd,
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POPTU_CAST( options[i] )->raw_data );
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if ( *(POPTU_CAST( options[i] )->raw_data) == NULL ) {
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OPTIONS_DEBUG( " *= NULL.\n" );
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if ( ( options[i].flags & OPT_ENVIRONMENT ) &&
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StoreEnvironmentOption( options+i, flags, pQueue ) ) {
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OPTIONS_DEBUG( "found environment variable for %s...",
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options[i].cmd );
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} else if ( options[i].flags & OPT_NONNULL ) {
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if ( prefix ) {
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fprintf( stderr,
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"option %s:%s must be specified and is missing.\n",
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prefix, options[i].cmd );
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} else {
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fprintf( stderr,
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"option %s must be specified and is missing.\n",
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options[i].cmd );
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}
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ret = FALSE;
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}
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} else {
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OPTIONS_DEBUG( "data is not null.\n" );
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}
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}
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#if 0 // not really necessary debug info.
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else if ( options[i].cmd ) {
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OPTIONS_DEBUG( "%s is ok.\n", options[i].cmd );
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}
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#endif
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}
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return ret;
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}
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