BSD 4_2 development

[unix-history] / usr / src / sys / conf / touch.c

#include <sys/types.h>
#include <sys/stat.h>
main(argc, argv)
       int argc;
       char **argv;
{

       argc--, argv++;
       while (argc > 0) {
               struct stat stb; int c, f;
               if (stat(*argv, &stb) < 0)
                       goto bad;
               if (chmod(*argv, stb.st_mode | 0200) < 0)
                       goto bad;
               f = open(*argv, 2);
               if (f < 0)
                       goto bad;
               lseek(f, 0, 0);
               read(f, &c, 1);
               lseek(f, 0, 0);
               write(f, &c, 1);
               close(f);
               chmod(*argv, stb.st_mode);
               argc--, argv++;
               continue;
bad:
               perror(*argv);
               argc--, argv++;
               continue;
       }
}