packetstorm sync

1 files changed, 52 insertions, 0 deletions

diff --git a/other/adore-ng/symsed.c b/other/adore-ng/symsed.c
new file mode 100644
index 0000000..3755367
--- /dev/null
+++ b/other/adore-ng/symsed.c
@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+
+int main(int argc, char **argv)
+{
+        int fd = 0;
+        char *ptr = NULL, *orig_ptr = NULL;
+        struct stat st;
+
+        if (argc != 3) {
+                printf("Usage: %s <file> <subst>\n", *argv);
+                exit(1);
+        }
+        if (strlen(argv[2]) >= strlen("init_module")) {
+                printf("Can't only substitute symbols by strings with at most"
+                       "%u characters.\n", strlen("init_module"));
+                exit(2);
+        }
+
+        if ((fd = open(argv[1], O_RDWR)) < 0) {
+                perror("open");
+                exit(errno);
+        }
+        if (fstat(fd, &st) < 0) {
+                perror("fstat");
+                exit(errno);
+        }
+        ptr = mmap(NULL, st.st_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+        orig_ptr = ptr;
+        if (!ptr) {
+                perror("mmap");
+                exit(errno);
+        }
+        for (; ptr < orig_ptr + st.st_size; ++ptr) {
+                if (strncmp(ptr, "init_module", strlen("init_module")) == 0 ||
+                    strncmp(ptr, "cleanup_module", strlen("cleanup_module")) == 0) {
+                        memcpy(ptr, argv[2], strlen(argv[2]));
+                        ptr += strlen(argv[2]);
+                }
+        }
+        munmap(ptr, st.st_size);
+        return 0;       
+}
+