17 lines
442 B
C
17 lines
442 B
C
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#include <lib.h>
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#define geteuid _geteuid
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#include <unistd.h>
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PUBLIC uid_t geteuid()
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{
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message m;
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/* POSIX says that this function is always successful and that no
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* return value is reserved to indicate an error. Minix syscalls
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* are not always successful and Minix returns the unreserved value
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* (uid_t) -1 when there is an error.
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*/
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if (_syscall(MM, GETUID, &m) < 0) return ( (uid_t) -1);
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return( (uid_t) m.m2_i1);
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}
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