68 строки
1.8 KiB
C
68 строки
1.8 KiB
C
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/* test for a trapdoor uid system */
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#if defined(HAVE_UNISTD_H)
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#include <unistd.h>
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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main()
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{
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if (getuid() != 0) {
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fprintf(stderr,"ERROR: This test must be run as root - assuming \
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non-trapdoor system\n");
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exit(0);
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}
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#if defined(HAVE_SETRESUID)
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if (setresuid(1,1,-1) != 0) exit(1);
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if (getuid() != 1) exit(1);
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if (geteuid() != 1) exit(1);
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if (setresuid(0,0,0) != 0) exit(1);
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if (getuid() != 0) exit(1);
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if (geteuid() != 0) exit(1);
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#elif defined(HAVE_SETREUID)
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/* Set real uid to 1. */
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if (setreuid(1,-1) != 0) exit(1);
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if (getuid() != 1) exit(1);
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/* Go back to root. */
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if (setreuid(0,-1) != 0) exit(1);
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if (getuid() != 0) exit(1);
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/* Now set euid to 1. */
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if (setreuid(-1,1) != 0) exit(1);
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if (geteuid() != 1) exit(1);
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/* Go back to root. */
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if (setreuid(0,0) != 0) exit(1);
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if (getuid() != 0) exit(1);
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if (geteuid() != 0) exit(1);
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#else
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if (seteuid(1) != 0) exit(1);
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if (geteuid() != 1) exit(1);
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if (seteuid(0) != 0) exit(1);
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if (geteuid() != 0) exit(1);
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#endif
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#if defined(HAVE_SETRESGID)
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if (setresgid(1,1,1) != 0) exit(1);
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if (getgid() != 1) exit(1);
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if (getegid() != 1) exit(1);
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if (setresgid(0,0,0) != 0) exit(1);
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if (getgid() != 0) exit(1);
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if (getegid() != 0) exit(1);
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#elif defined(HAVE_SETREGID)
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if (setregid(1,1) != 0) exit(1);
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if (getgid() != 1) exit(1);
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if (getegid() != 1) exit(1);
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if (setregid(0,0) != 0) exit(1);
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if (getgid() != 0) exit(1);
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if (getegid() != 0) exit(1);
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#else
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if (setegid(1) != 0) exit(1);
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if (getegid() != 1) exit(1);
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if (setegid(0) != 0) exit(1);
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if (getegid() != 0) exit(1);
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#endif
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exit(0);
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}
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