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Per suggestion from Vladimir, eliminate check_wildcard_match(), which

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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
This commit is contained in:
Eric Andersen
2001-05-14 17:07:32 +00:00
parent cb378a5267
commit 14d354312a
6 changed files with 97 additions and 234 deletions
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93
insmod.c
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@ -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");