forked from Bananymous/banan-os
37 lines
618 B
C++
37 lines
618 B
C++
#include <stdio.h>
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#include <unistd.h>
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#include <pwd.h>
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int main()
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{
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uid_t uid = getuid();
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uid_t euid = geteuid();
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gid_t gid = getgid();
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gid_t egid = getegid();
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passwd* pw_uid = getpwuid(uid);
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if (pw_uid == nullptr)
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{
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fprintf(stderr, "Unknown user #%d\n", uid);
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return 1;
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}
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passwd* pw_euid = getpwuid(euid);
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if (pw_euid == nullptr)
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{
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fprintf(stderr, "Unknown user #%d\n", euid);
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return 1;
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}
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printf("uid=%u(%s)", uid, pw_uid->pw_name);
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if (uid != euid)
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printf(",euid=%u(%s)",euid, pw_euid->pw_name);
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printf(" gid=%u", gid);
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if (gid != egid)
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printf(",egid=%u", egid);
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printf("\n");
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}
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