Oops. Since dirent.h depends on BB_FEATURE_SH_TAB_COMPLETION, put it

[oweals/busybox.git] / lsmod.c

diff --git a/lsmod.c b/lsmod.c
index 2a238cd23bf6609e4742258b68eb408f289361f2..c97d199a69e40d262cd86011ac05cc9b52998dc8 100644 (file)
--- a/lsmod.c
+++ b/lsmod.c
@@ -2,9 +2,13 @@
 /*
  * Mini lsmod implementation for busybox
  *
- * Copyright (C) 1999,2000 by Lineo, inc.
+ * Copyright (C) 1999,2000,2001 by Lineo, inc.
  * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
  *
+ * Modified by Alcove, Julien Gaulmin <julien.gaulmin@alcove.fr> and
+ * Nicolas Ferre <nicolas.ferre@alcove.fr> to support pre 2.1 kernels
+ * (which lack the query_module() interface).
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
@@ -21,7 +25,6 @@
  *
  */
 
-#include "internal.h"
 #include <stdlib.h>
 #include <stdio.h>
 #include <stddef.h>
@@ -32,8 +35,12 @@
 #include <assert.h>
 #include <getopt.h>
 #include <sys/utsname.h>
+#include <sys/file.h>
+#include "busybox.h"
+
 
 
+#ifdef BB_FEATURE_NEW_MODULE_INTERFACE
 
 struct module_info
 {
@@ -48,12 +55,19 @@ int query_module(const char *name, int which, void *buf, size_t bufsize,
                 size_t *ret);
 
 /* Values for query_module's which.  */
-#define QM_MODULES     1
-#define QM_DEPS                2
-#define QM_REFS                3
-#define QM_SYMBOLS     4
-#define QM_INFO                5
+static const int QM_MODULES = 1;
+static const int QM_DEPS = 2;
+static const int QM_REFS = 3;
+static const int QM_SYMBOLS = 4;
+static const int QM_INFO = 5;
 
+/* Bits of module.flags.  */
+static const int NEW_MOD_RUNNING = 1;
+static const int NEW_MOD_DELETED = 2;
+static const int NEW_MOD_AUTOCLEAN = 4;
+static const int NEW_MOD_VISITED = 8;
+static const int NEW_MOD_USED_ONCE = 16;
+static const int NEW_MOD_INITIALIZING = 64;
 
 
 extern int lsmod_main(int argc, char **argv)
@@ -65,7 +79,7 @@ extern int lsmod_main(int argc, char **argv)
        module_names = xmalloc(bufsize = 256);
        deps = xmalloc(bufsize);
        if (query_module(NULL, QM_MODULES, module_names, bufsize, &nmod)) {
-               fatalError("QM_MODULES: %s\n", strerror(errno));
+               perror_msg_and_die("QM_MODULES");
        }
 
        printf("Module                  Size  Used by\n");
@@ -76,7 +90,7 @@ extern int lsmod_main(int argc, char **argv)
                                continue;
                        }
                        /* else choke */
-                       fatalError("module %s: QM_INFO: %s\n", mn, strerror(errno));
+                       perror_msg_and_die("module %s: QM_INFO", mn);
                }
                while (query_module(mn, QM_REFS, deps, bufsize, &count)) {
                        if (errno == ENOENT) {
@@ -84,7 +98,7 @@ extern int lsmod_main(int argc, char **argv)
                                continue;
                        }
                        if (errno != ENOSPC) {
-                               fatalError("module %s: QM_REFS: %s", mn, strerror(errno));
+                               error_msg_and_die("module %s: QM_REFS", mn);
                        }
                        deps = xrealloc(deps, bufsize = count);
                }
@@ -93,10 +107,46 @@ extern int lsmod_main(int argc, char **argv)
                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("] ");
+
+               if (info.flags & NEW_MOD_DELETED)
+                       printf("(deleted)");
+               else if (info.flags & NEW_MOD_INITIALIZING)
+                       printf("(initializing)");
+               else if (!(info.flags & NEW_MOD_RUNNING))
+                       printf("(uninitialized)");
+               else {
+                       if (info.flags & NEW_MOD_AUTOCLEAN)
+                               printf("(autoclean) ");
+                       if (!(info.flags & NEW_MOD_USED_ONCE))
+                               printf("(unused)");
+               }
                printf("\n");
        }
 
 
        return( 0);
 }
+
+#else /*BB_FEATURE_OLD_MODULE_INTERFACE*/
+
+extern int lsmod_main(int argc, char **argv)
+{
+       int fd, i;
+       char line[128];
+
+       puts("Module                  Size  Used by");
+       fflush(stdout);
+
+       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");
+       return 1;
+}
+
+#endif /*BB_FEATURE_OLD_MODULE_INTERFACE*/