1 #include <unistd.h> 2 #include <sys/types.h> 3 #include <fcntl.h> 4 #include <stdio.h> 5 #include <stdlib.h> 6 #include <errno.h> 7 #include <string.h> 8 #include <ctype.h> 9 #include <selinux/selinux.h> 10 11 static void usage(const char *name, const char *detail, int rc) 12 { 13 fprintf(stderr, "usage: %s command [ fromcon ]\n", name); 14 if (detail) 15 fprintf(stderr, "%s: %s\n", name, detail); 16 exit(rc); 17 } 18 19 static char * get_selinux_proc_context(const char *command, char * execcon) { 20 char * fcon = NULL, *newcon = NULL; 21 22 int ret = getfilecon(command, &fcon); 23 if (ret < 0) goto err; 24 ret = security_compute_create(execcon, fcon, string_to_security_class("process"), &newcon); 25 if (ret < 0) goto err; 26 27 err: 28 freecon(fcon); 29 return newcon; 30 } 31 32 int main(int argc, char **argv) 33 { 34 int ret = -1; 35 char * proccon = NULL, *con = NULL; 36 if (argc < 2 || argc > 3) 37 usage(argv[0], "Invalid number of arguments", -1); 38 39 if (argc == 2) { 40 if (getcon(&con) < 0) { 41 perror(argv[0]); 42 return -1; 43 } 44 } else { 45 con = strdup(argv[2]); 46 } 47 48 proccon = get_selinux_proc_context(argv[1], con); 49 if (proccon) { 50 printf("%s\n", proccon); 51 ret = 0; 52 } else { 53 perror(argv[0]); 54 } 55 56 free(proccon); 57 free(con); 58 return ret; 59 } 60
