1 #include <stdio.h> 2 #include <string.h> 3 #include <fcntl.h> 4 #include <unistd.h> 5 #include <malloc.h> 6 #include <errno.h> 7 #include <asm/unistd.h> 8 9 extern int delete_module(const char *, unsigned int); 10 rmmod_main(int argc,char ** argv)11 int rmmod_main(int argc, char **argv) 12 { 13 int ret, i; 14 char *modname, *dot; 15 16 /* make sure we've got an argument */ 17 if (argc < 2) { 18 fprintf(stderr, "usage: rmmod <module>\n"); 19 return -1; 20 } 21 22 /* if given /foo/bar/blah.ko, make a weak attempt 23 * to convert to "blah", just for convenience 24 */ 25 modname = strrchr(argv[1], '/'); 26 if (!modname) 27 modname = argv[1]; 28 else modname++; 29 30 dot = strchr(argv[1], '.'); 31 if (dot) 32 *dot = '\0'; 33 34 /* Replace "-" with "_". This would keep rmmod 35 * compatible with module-init-tools version of 36 * rmmod 37 */ 38 for (i = 0; modname[i] != '\0'; i++) { 39 if (modname[i] == '-') 40 modname[i] = '_'; 41 } 42 43 /* pass it to the kernel */ 44 ret = delete_module(modname, O_NONBLOCK | O_EXCL); 45 if (ret != 0) { 46 fprintf(stderr, "rmmod: delete_module '%s' failed (errno %d)\n", 47 modname, errno); 48 return -1; 49 } 50 51 return 0; 52 } 53 54