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authorElie De Brauwer <eliedebrauwer@gmail.com>2012-02-18 13:25:36 +0100
committerElie De Brauwer <eliedebrauwer@gmail.com>2012-02-18 13:25:36 +0100
commited505e8b16eecc984759415efad56dc6e47afb70 (patch)
treec166477128d5b9cae477623402fc5a5138bf8b35 /toys/insmod.c
parent2a566c2bbfd996c7390ee6ff12aad342d045c8ed (diff)
downloadtoybox-ed505e8b16eecc984759415efad56dc6e47afb70.tar.gz
Adding insmod and rmmod
Diffstat (limited to 'toys/insmod.c')
-rw-r--r--toys/insmod.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/toys/insmod.c b/toys/insmod.c
new file mode 100644
index 00000000..e794828c
--- /dev/null
+++ b/toys/insmod.c
@@ -0,0 +1,47 @@
+/* vi: set sw=4 ts=4:
+ *
+ * insmod.c - Load a module into the Linux kernel.
+ *
+ * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
+ *
+ * Not in SUSv4.
+
+USE_INSMOD(NEWTOY(insmod, "<1", TOYFLAG_BIN|TOYFLAG_NEEDROOT))
+
+config INSMOD
+ bool "insmod"
+ default y
+ help
+ usage: insmod MODULE [MODULE_OPTIONS]
+
+ Load the module named MODULE passing options if given.
+*/
+
+#include "toys.h"
+
+#include <sys/syscall.h>
+#define init_module(mod, len, opts) syscall(__NR_init_module, mod, len, opts)
+
+void insmod_main(void)
+{
+ char * buf = NULL;
+ int len, res, i;
+ int fd = xopen(toys.optargs[0], O_RDONLY);
+
+ len = fdlength(fd);
+ buf = xmalloc(len);
+ xreadall(fd, buf, len);
+
+ i = 1;
+ while(toys.optargs[i] &&
+ strlen(toybuf) + strlen(toys.optargs[i]) + 2 < sizeof(toybuf)) {
+ strcat(toybuf, toys.optargs[i++]);
+ strcat(toybuf, " ");
+ }
+
+ res = init_module(buf, len, toybuf);
+ if (CFG_TOYBOX_FREE && buf != toybuf) free(buf);
+
+ if (res)
+ perror_exit("failed to load %s", toys.optargs[0]);
+}