ref: 0e516cbf488a9ec8edae3dc6efca2baa0c3d95bd
dir: /sys/src/cmd/upas/common/become.c/
#include "common.h" #include <auth.h> #include <ndb.h> /* * become powerless user */ int become(char **cmd, char *who) { int fd; USED(cmd); if(strcmp(who, "none") == 0) { fd = open("#c/user", OWRITE); if(fd < 0 || write(fd, "none", strlen("none")) < 0) { werrstr("can't become none"); return -1; } close(fd); if(newns("none", 0)) { werrstr("can't set new namespace"); return -1; } } return 0; }