cleanup

[oweals/busybox.git] / modutils / lsmod.c

diff --git a/modutils/lsmod.c b/modutils/lsmod.c
index 7b6ad14c6b6d3189f08b53a435d6c5a02ab5dc5f..d51da2d1699a4f26de7e739c38b4d740b52f8321 100644 (file)
--- a/modutils/lsmod.c
+++ b/modutils/lsmod.c
@@ -40,8 +40,37 @@
 #include "busybox.h"
 
 
+#ifndef CONFIG_FEATURE_CHECK_TAINTED_MODULE
+static inline void check_tainted(void) { printf("\n"); }
+#else
+#define TAINT_FILENAME                  "/proc/sys/kernel/tainted"
+#define TAINT_PROPRIETORY_MODULE        (1<<0)
+#define TAINT_FORCED_MODULE             (1<<1)
+#define TAINT_UNSAFE_SMP                (1<<2)
+
+static void check_tainted(void)
+{
+       int tainted;
+       FILE *f;
+
+       tainted = 0;
+       if ((f = fopen(TAINT_FILENAME, "r"))) {
+               fscanf(f, "%d", &tainted);
+               fclose(f);
+       }
+       if (f && tainted) {
+               printf("    Tainted: %c%c%c\n",
+                               tainted & TAINT_PROPRIETORY_MODULE      ? 'P' : 'G',
+                               tainted & TAINT_FORCED_MODULE           ? 'F' : ' ',
+                               tainted & TAINT_UNSAFE_SMP              ? 'S' : ' ');
+       }
+       else {
+               printf("    Not tainted\n");
+       }
+}
+#endif
 
-#ifdef CONFIG_FEATURE_NEW_MODULE_INTERFACE
+#ifdef CONFIG_FEATURE_QUERY_MODULE_INTERFACE
 
 struct module_info
 {
@@ -99,7 +128,9 @@ extern int lsmod_main(int argc, char **argv)
        }
 
        deps = xmalloc(depsize = 256);
-       printf("Module                  Size  Used by\n");
+       printf("Module                  Size  Used by");
+       check_tainted();
+
        for (i = 0, mn = module_names; i < nmod; mn += strlen(mn) + 1, i++) {
                if (query_module(mn, QM_INFO, &info, sizeof(info), &count)) {
                        if (errno == ENOENT) {
@@ -116,51 +147,45 @@ extern int lsmod_main(int argc, char **argv)
                        }
                        perror_msg_and_die("module %s: QM_REFS", mn);
                }
-               printf("%-20s%8lu%4ld ", mn, info.size, info.usecount);
+               printf("%-20s%8lu%4ld", mn, info.size, info.usecount);
                if (info.flags & NEW_MOD_DELETED)
-                       printf("(deleted)");
+                       printf(" (deleted)");
                else if (info.flags & NEW_MOD_INITIALIZING)
-                       printf("(initializing)");
+                       printf(" (initializing)");
                else if (!(info.flags & NEW_MOD_RUNNING))
-                       printf("(uninitialized)");
+                       printf(" (uninitialized)");
                else {
                        if (info.flags & NEW_MOD_AUTOCLEAN)
-                               printf("(autoclean) ");
+                               printf(" (autoclean) ");
                        if (!(info.flags & NEW_MOD_USED_ONCE))
-                               printf("(unused)");
+                               printf(" (unused)");
                }
-               if (count) printf("[");
+               if (count) printf(" [");
                for (j = 0, dn = deps; j < count; dn += strlen(dn) + 1, j++) {
                        printf("%s%s", dn, (j==count-1)? "":" ");
                }
-               if (count) printf("] ");
+               if (count) printf("]");
 
                printf("\n");
        }
 
+#ifdef CONFIG_FEATURE_CLEAN_UP
+       free(module_names);
+#endif
 
        return( 0);
 }
 
-#else /*CONFIG_FEATURE_OLD_MODULE_INTERFACE*/
+#else /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */
 
 extern int lsmod_main(int argc, char **argv)
 {
-       int fd, i;
-       char line[128];
-
-       puts("Module                  Size  Used by");
-       fflush(stdout);
+       printf("Module                  Size  Used by");
+       check_tainted();
 
-       if ((fd = open("/proc/modules", O_RDONLY)) >= 0 ) {
-               while ((i = read(fd, line, sizeof(line))) > 0) {
-                       write(fileno(stdout), line, i);
-               }
-               close(fd);
-               return 0;
-       }
-       perror_msg_and_die("/proc/modules");
+       if(print_file_by_name("/proc/modules") == FALSE)
        return 1;
+       return 0;
 }
 
-#endif /*CONFIG_FEATURE_OLD_MODULE_INTERFACE*/
+#endif /* CONFIG_FEATURE_QUERY_MODULE_INTERFACE */