31 lines
638 B
C
31 lines
638 B
C
main(argc,argv) char **argv ; {
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int child, waitchild ;
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int status ;
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child=fork() ;
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if ( child== -1 ) {
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printf("fork returned -1\n") ;
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return 1 ;
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}
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if ( child ) {
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/* The parent */
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printf("childno %d\n",child ) ;
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do {
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waitchild= wait(&status ) ;
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printf("Child %d, status 0x%x\n",waitchild,status) ;
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if ( waitchild== -1 ) {
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printf("No children\n") ;
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return 1 ;
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}
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} while ( waitchild!=child ) ;
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if ( argc<=1 && status != (8<<8) ) {
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printf("incorrect status return\n") ;
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return 2 ;
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}
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} else {
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/* The child */
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if ( argc>1 ) pause() ;
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return 8 ;
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}
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printf("fork/wait ok\n") ;
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return 0 ;
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}
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