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Patch from Robert Griebl <griebl@gmx.de> to support modprobe -r properly,

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merged in with the latest and greatest.
This commit is contained in:
Eric Andersen 2002-05-03 15:48:26 +00:00
parent 26920c6c94
commit 864b79791a
1 changed files with 57 additions and 36 deletions
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93
modutils/modprobe.c
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@ -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);