33 lines
559 B
C
33 lines
559 B
C
#include <errno.h>
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#include <lib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/ucred.h>
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int
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getnucred(endpoint_t proc_ep, struct uucred *ucred)
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{
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message m;
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pid_t pid;
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if (ucred == NULL) {
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errno = EFAULT;
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return -1;
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}
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m.m1_i1 = proc_ep; /* search for this process */
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pid = _syscall(PM_PROC_NR, GETEPINFO, &m);
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if (pid < 0) {
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return -1;
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}
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/* Only two fields are used for now, so ensure the rest is zeroed out. */
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memset(ucred, 0, sizeof(struct uucred));
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ucred->cr_uid = m.PM_NUID;
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ucred->cr_gid = m.PM_NGID;
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return 0;
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}
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