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-rw-r--r--src/tools/makeinitrd/Makefile30
-rw-r--r--src/tools/makeinitrd/main.cpp95
-rwxr-xr-xsrc/tools/makeinitrd/makeinitrdbin0 -> 16457 bytes
3 files changed, 125 insertions, 0 deletions
diff --git a/src/tools/makeinitrd/Makefile b/src/tools/makeinitrd/Makefile
new file mode 100644
index 0000000..3ac993c
--- /dev/null
+++ b/src/tools/makeinitrd/Makefile
@@ -0,0 +1,30 @@
+.PHONY: clean, mrproper
+
+CC = gcc
+CXX = g++
+LD = gcc
+LDFLAGS = -lstdc++
+CFLAGS =
+CXXFLAGS =
+
+OutFile = makeinitrd
+Objects = main.o
+
+all: $(OutFile)
+
+rebuild: mrproper all
+
+$(OutFile): $(Objects)
+ $(LD) -o $(OutFile) $(LDFLAGS) $^
+
+%.o: %.c
+ $(CC) -c $< -o $@ $(CFLAGS)
+
+%.o: %.cpp
+ $(CXX) -c $< -o $@ $(CXXFLAGS)
+
+clean:
+ rm -rf *.o
+
+mrproper: clean
+ rm -rf $(OutFile)
diff --git a/src/tools/makeinitrd/main.cpp b/src/tools/makeinitrd/main.cpp
new file mode 100644
index 0000000..ea8966b
--- /dev/null
+++ b/src/tools/makeinitrd/main.cpp
@@ -0,0 +1,95 @@
+#include <iostream>
+#include <fstream>
+#include <string>
+
+using namespace std;
+
+struct ramfs_header {
+ unsigned int magic; //For error checking
+ unsigned int files;
+};
+
+struct ramfs_file_header {
+ unsigned int name_length;
+ unsigned int file_length;
+};
+
+#define INITRD_MAGIC 0x12379846
+
+int main(int argc, char *argv[]) {
+ if (argc < 2) {
+ cerr << "Error : no output file specified." << endl;
+ cerr << "Usage : MakeRamFS <output.img> [<filename>:<ramfs filename> [...] ]" << endl;
+ return 1;
+ }
+
+ ofstream output(argv[1], ios::out | ios::binary);
+
+ ramfs_header hdr;
+ hdr.magic = INITRD_MAGIC;
+ hdr.files = argc - 2;
+
+ output.write((char*)&hdr, sizeof(ramfs_header));
+
+ for (int i = 2; i < argc; i++) {
+ string name(argv[i]);
+ string file;
+ while (!name.empty()) {
+ if (name[0] == ':') {
+ name = name.substr(1, name.size() - 1);
+ break;
+ }
+ file += name[0];
+ name = name.substr(1, name.size() - 1);
+ }
+
+ ramfs_file_header fhdr;
+
+ if (file == "") { //This is a directory
+ fhdr.name_length = name.size();
+ fhdr.file_length = 0; //File length of 0 means directory
+ output.write((char*)&fhdr, sizeof(ramfs_file_header));
+ output << name;
+ output << '\0';
+ continue;
+ }
+
+ ifstream infile(file.c_str(), ios::in | ios::binary);
+
+ if (!infile) {
+ fhdr.name_length = 0; //Name and length = 0 means invalid file
+ fhdr.file_length = 0;
+ output.write((char*)&fhdr, sizeof(ramfs_file_header));
+ continue;
+ }
+
+ fhdr.name_length = name.size();
+ fhdr.file_length = 0;
+ while (!infile.eof()) {
+ char c;
+ infile.read(&c, 1);
+ fhdr.file_length++;
+ }
+
+ infile.close(); infile.open(file.c_str(), ios::in | ios::binary); //Rewind file
+
+ output.write((char*)&fhdr, sizeof(ramfs_file_header));
+
+ output << name;
+ output << '\0';
+
+ char *c = new char[fhdr.file_length];
+ for (int i = 0; i < fhdr.file_length; i++) {
+ char ch;
+ infile.read(&ch, 1);
+ output.write(&ch, 1);
+ }
+ delete [] c;
+
+ infile.close();
+ }
+
+ output.close();
+
+ return 0;
+}
diff --git a/src/tools/makeinitrd/makeinitrd b/src/tools/makeinitrd/makeinitrd
new file mode 100755
index 0000000..afb042c
--- /dev/null
+++ b/src/tools/makeinitrd/makeinitrd
Binary files differ