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authorEric Andersen <andersen@codepoet.org>2002-05-03 15:48:26 +0000
committerEric Andersen <andersen@codepoet.org>2002-05-03 15:48:26 +0000
commit864b79791a8367d9f8ea2c18eba31fea65bf511a (patch)
treeb5653837256659fad4718f52f8690802396cc563
parent26920c6c94449a96bf4c0701300ff4474bc56515 (diff)
downloadbusybox-864b79791a8367d9f8ea2c18eba31fea65bf511a.tar.gz
Patch from Robert Griebl <griebl@gmx.de> to support modprobe -r properly,
merged in with the latest and greatest.
-rw-r--r--modutils/modprobe.c93
1 files changed, 57 insertions, 36 deletions
diff --git a/modutils/modprobe.c b/modutils/modprobe.c
index f9aa0aa55..2f797ec4a 100644
--- a/modutils/modprobe.c
+++ b/modutils/modprobe.c
@@ -34,7 +34,7 @@ struct dep_t {
};
-static struct dep_t *build_dep ( )
+static struct dep_t *build_dep ( void )
{
struct utsname un;
FILE *f;
@@ -55,7 +55,7 @@ static struct dep_t *build_dep ( )
return 0;
while ( fgets ( buffer, sizeof( buffer), f )) {
- int l = strlen ( buffer );
+ int l = xstrlen ( buffer );
char *p = 0;
if ( buffer [l-1] == '\n' ) {
@@ -74,6 +74,7 @@ static struct dep_t *build_dep ( )
if ( col ) {
char *mods;
char *mod;
+ int ext = 0;
*col = 0;
mods = strrchr ( buffer, '/' );
@@ -83,10 +84,11 @@ static struct dep_t *build_dep ( )
else
mods++;
- mod = (char *) malloc ( col - mods + 1 );
- strncpy ( mod, mods, col - mods );
- mod [col - mods] = 0;
-
+ if (( *(col-2) == '.' ) && ( *(col-1) == 'o' ))
+ ext = 2;
+
+ mod = xstrndup ( mods, col - mods - ext );
+
if ( !current ) {
first = current = (struct dep_t *) malloc ( sizeof ( struct dep_t ));
}
@@ -99,7 +101,7 @@ static struct dep_t *build_dep ( )
current-> m_deparr = 0;
current-> m_next = 0;
- /* printf ( "%s:\n", mod ); */
+ //printf ( "%s:\n", mod );
p = col + 1;
}
@@ -113,6 +115,7 @@ static struct dep_t *build_dep ( )
char *end = &buffer [l-1];
char *deps = strrchr ( end, '/' );
char *dep;
+ int ext = 0;
while ( isblank ( *end ) || ( *end == '\\' ))
end--;
@@ -128,15 +131,16 @@ static struct dep_t *build_dep ( )
else
deps++;
- dep = (char *) malloc ( end - deps + 2 );
- strncpy ( dep, deps, end - deps + 1 );
- dep [end - deps + 1] = 0;
+ if (( *(end-1) == '.' ) && ( *end == 'o' ))
+ ext = 2;
+
+ dep = xstrndup ( deps, end - deps - ext + 1 );
current-> m_depcnt++;
- current-> m_deparr = (char **) realloc ( current-> m_deparr, sizeof ( char *) * current-> m_depcnt );
+ current-> m_deparr = (char **) xrealloc ( current-> m_deparr, sizeof ( char *) * current-> m_depcnt );
current-> m_deparr [current-> m_depcnt - 1] = dep;
- /* printf ( " %d) %s\n", current-> m_depcnt, current-> m_deparr [current-> m_depcnt -1] ); */
+ //printf ( " %d) %s\n", current-> m_depcnt, current-> m_deparr [current-> m_depcnt -1] );
}
if ( buffer [l-1] == '\\' )
@@ -152,26 +156,33 @@ static struct dep_t *build_dep ( )
static struct dep_t *find_dep ( struct dep_t *dt, char *mod )
{
- int lm = strlen ( mod );
- int hasext = 0;
-
+ int lm = xstrlen ( mod );
+ int extpos = 0;
+
if (( mod [lm-2] == '.' ) && ( mod [lm-1] == 'o' ))
- hasext = 1;
-
+ extpos = 2;
+
+ if ( extpos > 0 )
+ mod [lm - extpos] = 0;
+
while ( dt ) {
- if ( hasext && !strcmp ( dt-> m_module, mod ))
+ if ( !strcmp ( dt-> m_module, mod ))
break;
- else if ( !hasext && !strncmp ( dt-> m_module, mod, strlen ( dt-> m_module ) - 2 ))
- break;
-
+
dt = dt-> m_next;
}
+ if ( extpos > 0 )
+ mod [lm - extpos] = '.';
+
return dt;
}
+#define MODPROBE_EXECUTE 0x1
+#define MODPROBE_INSERT 0x2
+#define MODPROBE_REMOVE 0x4
static void check_dep ( char *mod, int do_syslog,
- int show_only, int verbose, int recursing )
+ int show_only, int verbose, int flags )
{
static struct dep_t *depend = (struct dep_t *) -1;
struct dep_t *dt;
@@ -179,24 +190,29 @@ static void check_dep ( char *mod, int do_syslog,
if ( depend == (struct dep_t *) -1 )
depend = build_dep ( );
- /* printf ( "CHECK: %s (%p)\n", mod, depend ); */
-
if (( dt = find_dep ( depend, mod ))) {
int i;
for ( i = 0; i < dt-> m_depcnt; i++ )
check_dep ( dt-> m_deparr [i], do_syslog,
- show_only, verbose, 1);
+ show_only, verbose, flags|MODPROBE_EXECUTE);
}
- if ( recursing ) {
+ if ( flags & MODPROBE_EXECUTE ) {
char lcmd [256];
-
- snprintf(lcmd, sizeof(lcmd)-1, "insmod %s -q -k %s 2>/dev/null",
- do_syslog ? "-s" : "", mod );
- if (show_only || verbose)
- printf("%s\n", lcmd);
- if (!show_only)
- system ( lcmd );
+ if ( flags & MODPROBE_INSERT ) {
+ snprintf(lcmd, sizeof(lcmd)-1, "insmod %s -q -k %s 2>/dev/null",
+ do_syslog ? "-s" : "", mod );
+ }
+ if ( flags & MODPROBE_REMOVE ) {
+ snprintf(lcmd, sizeof(lcmd)-1, "insmod %s -q -k %s 2>/dev/null",
+ do_syslog ? "-s" : "", mod );
+ }
+ if ( flags & (MODPROBE_REMOVE|MODPROBE_INSERT) ) {
+ if (verbose)
+ printf("%s\n", lcmd);
+ if (!show_only)
+ system ( lcmd );
+ }
}
}
@@ -273,10 +289,15 @@ extern int modprobe_main(int argc, char** argv)
optind < argc ? argv[optind] : "");
if (do_syslog)
syslog(LOG_INFO, "%s", cmd);
- if (show_only || verbose)
+ if (verbose)
printf("%s\n", cmd);
if (!show_only)
rc = system(cmd);
+
+#ifdef CONFIG_MODPROBE_DEPEND
+ if ( optind < argc )
+ check_dep ( argv [optind], do_syslog, show_only, verbose, MODPROBE_REMOVE);
+#endif
} while (++optind < argc);
exit(EXIT_SUCCESS);
}
@@ -292,7 +313,7 @@ extern int modprobe_main(int argc, char** argv)
autoclean ? "-k" : "");
#ifdef CONFIG_MODPROBE_DEPEND
- check_dep ( argv [optind], do_syslog, show_only, verbose, 0);
+ check_dep ( argv [optind], do_syslog, show_only, verbose, MODPROBE_INSERT);
#endif
while (optind < argc) {
@@ -302,7 +323,7 @@ extern int modprobe_main(int argc, char** argv)
}
if (do_syslog)
syslog(LOG_INFO, "%s", cmd);
- if (show_only || verbose)
+ if (verbose)
printf("%s\n", cmd);
if (!show_only)
rc = system(cmd);