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@ -13,11 +13,12 @@
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} while (0);
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#define RANDBYTE (rand() % UINT8_MAX)
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static const char *PREAMBLE = "/* file generated by VMBoxGen, see tools/vmboxgen/src/main.c "
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"*/\n#ifndef LAIKA_VMBOX_CONFIG_H\n#define LAIKA_VMBOX_CONFIG_H\n\n";
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static const char *PREAMBLE = "/* file generated by VMBoxGen, see tools/vmboxgen/src/main.c */\n"
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"#ifndef LAIKA_VMBOX_CONFIG_H\n"
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"#define LAIKA_VMBOX_CONFIG_H\n\n";
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static const char *POSTAMBLE = "\n#endif\n";
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void writeArray(FILE *out, uint8_t *data, int sz)
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static void writeArray(FILE *out, uint8_t *data, int sz)
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{
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int i;
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@ -28,18 +29,18 @@ void writeArray(FILE *out, uint8_t *data, int sz)
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fprintf(out, "0x%02x};\n", data[sz - 1]);
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}
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void writeDefineArray(FILE *out, char *ident, uint8_t *data)
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static void writeDefineArray(FILE *out, char *ident, uint8_t *data)
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{
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fprintf(out, "#define %s ", ident);
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writeArray(out, data, LAIKA_VM_CODESIZE);
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}
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void writeDefineVal(FILE *out, char *ident, int data)
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static void writeDefineVal(FILE *out, char *ident, int data)
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{
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fprintf(out, "#define %s 0x%02x\n", ident, data);
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}
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void addPadding(uint8_t *data, int start)
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static void addPadding(uint8_t *data, int start)
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{
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int i;
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@ -49,15 +50,15 @@ void addPadding(uint8_t *data, int start)
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}
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}
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void makeSKIDdata(char *data, int sz, uint8_t *buff, int key)
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static void makeSKIDdata(char *data, int sz, uint8_t *buff, int key)
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{
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int i;
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for (i = 0; i < sz; i++)
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buff[i] = data[i] ^ key;
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buff[i++] = key; /* add the null terminator */
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addPadding(buff, i);
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buff[i++] = key; /* add the null terminator (key ^ key = 0x00) */
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addPadding(buff, i); /* fill in the remaining bytes with semi-rand padding */
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}
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#define MAKESKIDDATA(macro) \
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@ -69,14 +70,17 @@ void makeSKIDdata(char *data, int sz, uint8_t *buff, int key)
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int main(int argv, char **argc)
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{
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uint8_t tmpBuff[LAIKA_VM_CODESIZE];
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int key;
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FILE *out;
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char *fileName;
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int key;
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if (argv < 2)
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ERR("USAGE: %s [OUTFILE]\n", argv > 0 ? argc[0] : "BoxGen");
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if ((out = fopen(argc[1], "w+")) == NULL)
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ERR("Failed to open %s!\n", argc[1]);
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/* open output file */
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fileName = argc[1];
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if ((out = fopen(fileName, "w+")) == NULL)
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ERR("Failed to open %s!\n", fileName);
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srand(time(NULL)); /* really doesn't need to be cryptographically secure, the point is only to
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slow them down */
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@ -100,8 +104,8 @@ int main(int argv, char **argc)
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fprintf(out, POSTAMBLE);
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fclose(out);
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printf("Wrote %s\n", argc[1]);
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printf("Laika VMBox data header dumped to '%s'\n", fileName);
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return 0;
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}
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#undef MAKEDATA
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#undef MAKESKIDDATA
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