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authorGravatar Eric Andersen <andersen@codepoet.org>2001-05-14 17:07:32 +0000
committerGravatar Eric Andersen <andersen@codepoet.org>2001-05-14 17:07:32 +0000
commit14d354312a9d49a8b410516c20be57159af217a5 (patch)
tree9dabe9c71ebbdb67f1c56fb97b780a5a823d132f /modutils
parentcb378a52672d65885c96d6d4b7ed73deac0b967a (diff)
downloadbusybox-14d354312a9d49a8b410516c20be57159af217a5.tar.gz
busybox-14d354312a9d49a8b410516c20be57159af217a5.tar.bz2
Per suggestion from Vladimir, eliminate check_wildcard_match(), which
was only being used by insmod these days. Also, I spent a minute adjusting insmod so that it first searches /lib/modules/`uname -r` and then (if that fails) searches /lib/modules, which makes bb insmod behave much more like the real insmod, and should avoid nasty surprises (such as the recent "Modutils vs. Busybox..." thread). -Erik
Diffstat (limited to 'modutils')
-rw-r--r--modutils/insmod.c93
1 files changed, 48 insertions, 45 deletions
diff --git a/modutils/insmod.c b/modutils/insmod.c
index 27f4a50e2..bc7f6589a 100644
--- a/modutils/insmod.c
+++ b/modutils/insmod.c
@@ -124,7 +124,7 @@
#ifndef MODUTILS_MODULE_H
static const int MODUTILS_MODULE_H = 1;
-#ident "$Id: insmod.c,v 1.60 2001/04/26 19:29:58 andersen Exp $"
+#ident "$Id: insmod.c,v 1.61 2001/05/14 17:07:32 andersen Exp $"
/* This file contains the structures used by the 2.0 and 2.1 kernels.
We do not use the kernel headers directly because we do not wish
@@ -330,7 +330,7 @@ int delete_module(const char *);
#ifndef MODUTILS_OBJ_H
static const int MODUTILS_OBJ_H = 1;
-#ident "$Id: insmod.c,v 1.60 2001/04/26 19:29:58 andersen Exp $"
+#ident "$Id: insmod.c,v 1.61 2001/05/14 17:07:32 andersen Exp $"
/* The relocatable object is manipulated using elfin types. */
@@ -677,50 +677,35 @@ size_t nksyms;
struct external_module *ext_modules;
int n_ext_modules;
int n_ext_modules_used;
-
-
extern int delete_module(const char *);
+static char m_filename[FILENAME_MAX + 1];
+static char m_fullName[FILENAME_MAX + 1];
-/* This is kind of troublesome. See, we don't actually support
- the m68k or the arm the same way we support i386 and (now)
- sh. In doing my SH patch, I just assumed that whatever works
- for i386 also works for m68k and arm since currently insmod.c
- does nothing special for them. If this isn't true, the below
- line is rather misleading IMHO, and someone should either
- change it or add more proper architecture-dependent support
- for these boys.
- -- Bryan Rittmeyer <bryan@ixiacom.com> */
-
-static char m_filename[BUFSIZ + 1];
-static char m_fullName[BUFSIZ + 1];
/*======================================================================*/
-static int findNamedModule(const char *fileName, struct stat *statbuf,
- void *userDate)
+static int check_module_name_match(const char *filename, struct stat *statbuf,
+ void *userdata)
{
- char *fullName = (char *) userDate;
-
+ char *fullname = (char *) userdata;
- if (fullName[0] == '\0')
+ if (fullname[0] == '\0')
return (FALSE);
else {
- char *tmp = strrchr((char *) fileName, '/');
-
- if (tmp == NULL)
- tmp = (char *) fileName;
- else
- tmp++;
- if (check_wildcard_match(tmp, fullName) == TRUE) {
+ char *tmp, *tmp1 = strdup(filename);
+ tmp = get_last_path_component(tmp1);
+ if (strcmp(tmp, fullname) == 0) {
+ free(tmp1);
/* Stop searching if we find a match */
- safe_strncpy(m_filename, fileName, sizeof(m_filename));
- return (FALSE);
+ safe_strncpy(m_filename, filename, sizeof(m_filename));
+ return (TRUE);
}
+ free(tmp1);
}
- return (TRUE);
+ return (FALSE);
}
@@ -3125,7 +3110,7 @@ extern int insmod_main( int argc, char **argv)
FILE *fp;
struct obj_file *f;
struct stat st;
- char m_name[BUFSIZ + 1] = "\0";
+ char m_name[FILENAME_MAX + 1] = "\0";
int exit_status = EXIT_FAILURE;
int m_has_modinfo;
#ifdef BB_FEATURE_INSMOD_VERSION_CHECKING
@@ -3152,7 +3137,7 @@ extern int insmod_main( int argc, char **argv)
flag_export = 0;
break;
case 'o': /* name the output module */
- strncpy(m_name, optarg, BUFSIZ);
+ strncpy(m_name, optarg, FILENAME_MAX);
break;
case 'L': /* Stub warning */
/* This is needed for compatibility with modprobe.
@@ -3186,24 +3171,42 @@ extern int insmod_main( int argc, char **argv)
}
strcat(m_fullName, ".o");
- /* Get a filedesc for the module */
+ /* Get a filedesc for the module. Check we we have a complete path */
if (stat(argv[optind], &st) < 0 || !S_ISREG(st.st_mode) ||
(fp = fopen(argv[optind], "r")) == NULL) {
- /* Hmpf. Could not open it. Search through _PATH_MODULES to find a module named m_name */
- if (recursive_action(_PATH_MODULES, TRUE, FALSE, FALSE,
- findNamedModule, 0, m_fullName) == FALSE)
+ struct utsname myuname;
+
+ /* Hmm. Could not open it. First search under /lib/modules/`uname -r`,
+ * but do not error out yet if we fail to find it... */
+ if (uname(&myuname) == 0) {
+ char module_dir[FILENAME_MAX];
+ snprintf (module_dir, sizeof(module_dir), "%s/%s",
+ _PATH_MODULES, myuname.release);
+ recursive_action(module_dir, TRUE, FALSE, FALSE,
+ check_module_name_match, 0, m_fullName);
+ }
+
+ /* Check if we have found anything yet */
+ if (m_filename[0] == '\0' || ((fp = fopen(m_filename, "r")) == NULL))
{
- if (m_filename[0] == '\0'
- || ((fp = fopen(m_filename, "r")) == NULL))
+ /* No module found under /lib/modules/`uname -r`, this
+ * time cast the net a bit wider. Search /lib/modules/ */
+ if (recursive_action(_PATH_MODULES, TRUE, FALSE, FALSE,
+ check_module_name_match, 0, m_fullName) == FALSE)
{
- error_msg("No module named '%s' found in '%s'", m_fullName, _PATH_MODULES);
- return EXIT_FAILURE;
- }
- } else
- error_msg_and_die("No module named '%s' found in '%s'", m_fullName, _PATH_MODULES);
- } else
+ if (m_filename[0] == '\0'
+ || ((fp = fopen(m_filename, "r")) == NULL))
+ {
+ error_msg("%s: no module by that name found", m_fullName);
+ return EXIT_FAILURE;
+ }
+ } else
+ error_msg_and_die("%s: no module by that name found", m_fullName);
+ }
+ } else
safe_strncpy(m_filename, argv[optind], sizeof(m_filename));
+ printf("Using %s\n", m_filename);
if ((f = obj_load(fp)) == NULL)
perror_msg_and_die("Could not load the module");