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#include <sys/types.h>
#include <pwd.h>
#include "prot.h"
#include "strerr.h"
#include "pathexec.h"
#define USAGE " account child"
#define FATAL "setuidgid: fatal: "
const char *progname;
void fatal(char *m) { strerr_die3sys(111, FATAL, m, ": "); }
void usage() { strerr_die4x(100, "usage: ", progname, USAGE, "\n"); }
int main(int argc, const char *const *argv, const char *const *envp) {
const char *account;
struct passwd *pw;
progname =argv[0];
if (! (account =*++argv)) usage();
if (! *++argv) usage();
if (! (pw =getpwnam(account)))
strerr_die3x(111, FATAL, "unknown account ", account);
if (prot_gid(pw->pw_gid) == -1) fatal("unable to setgid");
if (prot_uid(pw->pw_uid) == -1) fatal("unable to setuid");
pathexec_run(*argv, argv, envp);
strerr_die4sys(111, FATAL, "unable to run ", *argv, ": ");
return(1);
}
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