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#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#ifndef EXIT_FAILURE
#define EXIT_FAILURE 1
#endif
#define abrt() return EXIT_FAILURE
int main(int argc, char *argv[])
{
pid_t pgid, pid=0; int arg1;
if (argc < 3) {
fprintf(stderr,"Usage: %s pgid command args\n",argv[0]);
abrt();
}
if(sscanf(argv[1],"%d",&arg1)!=1) {
fprintf(stderr,"Usage: %s pgid command args\n",argv[0]);
abrt();
}
pgid = arg1;
if (setpgid(0,pgid)) {
fprintf(stderr,"Error changing pgid\n");
abrt();
}
if(execvp(argv[2],&argv[2])) {
fprintf(stderr,"Error execvping\n");
abrt();
}
return 0; /* Impossible */
}
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