44 lines
693 B
C
44 lines
693 B
C
#include <assert.h>
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#include <pwd.h>
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#include <string.h>
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#include <sysdep.h>
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#include <unistd.h>
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uid_t getuid()
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{
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return (uid_t)DO_SYSCALL_0(SYS_GETUID);
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}
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uid_t geteuid()
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{
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return 0;
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}
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int setuid(uid_t uid)
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{
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return DO_SYSCALL_1(SYS_SETUID, uid);
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}
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int setgid(gid_t gid)
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{
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return DO_SYSCALL_1(SYS_SETGID, gid);
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}
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int setreuid(uid_t ruid, uid_t euid)
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{
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return DO_SYSCALL_2(SYS_SETREUID, ruid, euid);
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}
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int setregid(gid_t rgid, gid_t egid)
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{
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return DO_SYSCALL_2(SYS_SETREGID, rgid, egid);
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}
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static char loginbuf[128];
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char* getlogin()
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{
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passwd_t* passwd = getpwuid(getuid());
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strncpy(loginbuf, passwd->pw_name, 128);
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endpwent();
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return loginbuf;
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} |