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| [9] | 1 | #include <lib.h>
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| 2 | #define getppid _getppid
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| 3 | #include <unistd.h>
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| 4 |
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| 5 | PUBLIC pid_t getppid()
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| 6 | {
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| 7 | message m;
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| 8 |
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| 9 | /* POSIX says that this function is always successful and that no
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| 10 | * return value is reserved to indicate an error. Minix syscalls
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| 11 | * are not always successful and Minix returns the reserved value
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| 12 | * (pid_t) -1 when there is an error.
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| 13 | */
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| 14 | if (_syscall(MM, GETPID, &m) < 0) return ( (pid_t) -1);
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| 15 | return( (pid_t) m.m2_i1);
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| 16 | }
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