35 lines
		
	
	
		
			601 B
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			35 lines
		
	
	
		
			601 B
		
	
	
	
		
			C
		
	
	
	
| #include "tests.h"
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| #include <asm/unistd.h>
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| 
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| #ifdef __NR_vhangup
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| 
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| # include <stdio.h>
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| # include <unistd.h>
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| 
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| int
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| main(void)
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| {
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| 	if (setsid() == -1)
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| 		perror_msg_and_skip("setsid");
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| 
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| 	long rc = syscall(__NR_vhangup);
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| 
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| 	/*
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| 	 * On setsid() success, the new session has no controlling terminal,
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| 	 * therefore a subsequent vhangup() has nothing to hangup.
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| 	 *
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| 	 * The system call, however, returns 0 iff the calling process
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| 	 * has CAP_SYS_TTY_CONFIG capability.
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| 	 */
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| 	printf("vhangup() = %s\n", sprintrc(rc));
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| 
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| 	puts("+++ exited with 0 +++");
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| 	return 0;
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| }
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| 
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| #else
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| 
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| SKIP_MAIN_UNDEFINED("__NR_vhangup")
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| 
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| #endif
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