minix/lib/libc/other/_getngid.c

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#include <lib.h>
#define getngid _getngid
#include <unistd.h>
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PUBLIC gid_t getngid(endpoint_t proc_ep)
{
message m;
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m.m1_i1 = proc_ep; /* search gid for this process */
if (_syscall(MM, GETEPINFO, &m) < 0) return ( (gid_t) -1);
return( (gid_t) m.m2_i2); /* return search result */
}