1 #define _GNU_SOURCE 2 #include <pwd.h> 3 #include <stdio.h> 4 putpwent(const struct passwd * pw,FILE * f)5int putpwent(const struct passwd *pw, FILE *f) 6 { 7 return fprintf(f, "%s:%s:%u:%u:%s:%s:%s\n", 8 pw->pw_name, pw->pw_passwd, pw->pw_uid, pw->pw_gid, 9 pw->pw_gecos, pw->pw_dir, pw->pw_shell)<0 ? -1 : 0; 10 } 11