1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <string.h> 4 #include <sys/types.h> 5 #include <dirent.h> 6 #include <errno.h> 7 8 #include <unistd.h> 9 #include <time.h> 10 chmod_main(int argc,char ** argv)11int chmod_main(int argc, char **argv) 12 { 13 int i; 14 15 if (argc < 3) { 16 fprintf(stderr, "Usage: chmod <MODE> <FILE>\n"); 17 return 10; 18 } 19 20 int mode = 0; 21 const char* s = argv[1]; 22 while (*s) { 23 if (*s >= '0' && *s <= '7') { 24 mode = (mode<<3) | (*s-'0'); 25 } 26 else { 27 fprintf(stderr, "Bad mode\n"); 28 return 10; 29 } 30 s++; 31 } 32 for (i = 2; i < argc; i++) { 33 if (chmod(argv[i], mode) < 0) { 34 fprintf(stderr, "Unable to chmod %s: %s\n", argv[i], strerror(errno)); 35 return 10; 36 } 37 } 38 return 0; 39 } 40 41