1 /* insmod.c: insert a module into the kernel.
2 Copyright (C) 2001 Rusty Russell.
3 Copyright (C) 2002 Rusty Russell, IBM Corporation.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include <sys/types.h>
29 #include <asm/unistd.h>
34 extern long init_module(void *, unsigned long, const char *);
36 static void print_usage(const char *progname)
38 fprintf(stderr, "Usage: %s filename [args]\n", progname);
42 /* We use error numbers in a loose translation... */
43 static const char *moderror(int err)
47 return "Invalid module format";
49 return "Unknown symbol in module";
51 return "Module has wrong symbol version";
53 return "Invalid parameters";
59 static void *grab_file(const char *filename, unsigned long *size)
61 unsigned int max = 16384;
62 int ret, fd, err_save;
65 if (streq(filename, "-"))
66 fd = dup(STDIN_FILENO);
68 fd = open(filename, O_RDONLY, 0);
78 while ((ret = read(fd, buffer + *size, max - *size)) > 0) {
83 p = realloc(buffer, max *= 2);
103 int main(int argc, char *argv[])
109 char *filename, *options = strdup("");
110 char *p, *progname = argv[0];
114 "insmod: can't allocate memory: %s\n",
119 p = my_basename(argv[0]);
121 if (argv[1] && (streq(argv[1], "--version") || streq(argv[1], "-V"))) {
122 puts(PACKAGE " version " VERSION);
126 /* Ignore old options, for backwards compat. */
127 while (argv[1] && (streq(argv[1], "-p")
128 || streq(argv[1], "-s")
129 || streq(argv[1], "-f"))) {
136 print_usage(progname);
138 /* Rest is options */
139 for (i = 2; i < argc; i++) {
140 options = realloc(options,
141 strlen(options) + 1 + strlen(argv[i]) + 1);
144 "insmod: can't allocate memory: %s\n",
148 strcat(options, argv[i]);
149 strcat(options, " ");
152 file = grab_file(filename, &len);
154 fprintf(stderr, "insmod: can't read '%s': %s\n",
155 filename, strerror(errno));
159 ret = init_module(file, len, options);
161 fprintf(stderr, "insmod: error inserting '%s': %li %s\n",
162 filename, ret, moderror(errno));