Added nacptool.

Makefile.am

@@ -1,9 +1,10 @@
 # Makefile.am -- Process this file with automake to produce Makefile.in
-bin_PROGRAMS = elf2nso elf2nro build_pfs0
+bin_PROGRAMS = elf2nso elf2nro build_pfs0 nacptool
 
 build_pfs0_SOURCES	=	src/build_pfs0.c src/types.h
 elf2nro_SOURCES	=	src/elf2nro.c src/elf64.h src/elf_common.h
 elf2nso_SOURCES	=	src/elf2nso.c src/sha256.c src/sha256.h src/elf64.h src/elf_common.h
+nacptool_SOURCES	=	src/nacptool.c
 
 elf2nso_LDADD = @LZ4_LIBS@
 

src/nacptool.c

@@ -0,0 +1,123 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+typedef uint64_t u64;
+typedef uint32_t u32;
+typedef uint8_t u8;
+
+typedef struct {
+    char name[0x200];
+    char author[0x100];
+} NacpLanguageEntry;
+
+typedef struct {
+    NacpLanguageEntry lang[12];
+    NacpLanguageEntry lang_unk[4];//?
+
+    u8  x3000_unk[0x24];////Normally all-zero?
+    u32 x3024_unk;
+    u32 x3028_unk;
+    u32 x302C_unk;
+    u32 x3030_unk;
+    u32 x3034_unk;
+    u64 titleid0;
+
+    u8 x3040_unk[0x20];
+    char version[0x10];
+
+    u64 titleid_dlcbase;
+    u64 titleid1;
+
+    u32 x3080_unk;
+    u32 x3084_unk;
+    u32 x3088_unk;
+    u8 x308C_unk[0x24];//zeros?
+
+    u64 titleid2;
+    u64 titleids[7];//"Array of application titleIDs, normally the same as the above app-titleIDs. Only set for game-updates?"
+
+    u32 x30F0_unk;
+    u32 x30F4_unk;
+
+    u64 titleid3;//"Application titleID. Only set for game-updates?"
+
+    char bcat_passphrase[0x40];
+    u8 x3140_unk[0xEC0];//Normally all-zero?
+} NacpStruct;
+
+int main(int argc, char* argv[]) {
+    if (argc < 6 || strncmp(argv[1], "--create", 8)!=0) {
+        fprintf(stderr, "%s --create <name> <author> <version> <outfile> [options]\n\n", argv[0]);
+        fprintf(stderr, "FLAGS:\n");
+        fprintf(stderr, "--create : Create control.nacp for use with Switch homebrew applications.\n");
+        fprintf(stderr, "Options:\n");
+        fprintf(stderr, "--titleid=<titleID> Set the application titleID.\n");
+        return EXIT_FAILURE;
+    }
+
+    NacpStruct nacp;
+    memset(&nacp, 0, sizeof(nacp));
+
+    if (sizeof(NacpStruct) != 0x4000) {
+        fprintf(stderr, "Bad compile environment!\n");
+        return EXIT_FAILURE;
+    }
+
+    char *name = argv[2];
+    char *author = argv[3];
+    char *names[12];
+    char *authors[12];
+
+    int i;
+    for (i=0; i<12; i++) {
+        names[i] = name;
+        authors[i] = author;
+    }
+
+    int argi;
+    u64 titleid=0;
+    for (argi=6; argi<argc; argi++) {
+        if (strncmp(argv[argi], "--titleid=", 10)==0) sscanf(&argv[argi][10], "%016lX", &titleid);
+    }
+
+    for (i=0; i<12; i++) {//These are UTF-8.
+        strncpy(nacp.lang[i].name, names[i], sizeof(nacp.lang[i].name)-1);
+        strncpy(nacp.lang[i].author, authors[i], sizeof(nacp.lang[i].author)-1);
+    }
+
+    strncpy(nacp.version, argv[4], sizeof(nacp.version)-1);
+
+    if (titleid) {
+        nacp.titleid0 = titleid;
+        nacp.titleid_dlcbase = titleid+0x1000;
+        nacp.titleid1 = titleid;
+        nacp.titleid2 = titleid;
+    }
+
+    u8 unk_data[0x20] = {0x0C, 0xFF, 0xFF, 0x0A, 0xFF, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0D, 0x0D, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
+
+    nacp.x3024_unk = 0x100;
+    nacp.x302C_unk = 0xbff;
+    nacp.x3034_unk = 0x10000;
+
+    memcpy(nacp.x3040_unk, unk_data, sizeof(unk_data));
+
+    nacp.x3080_unk = 0x3e00000;
+    nacp.x3088_unk = 0x180000;
+    nacp.x30F0_unk = 0x102;
+
+    FILE* out = fopen(argv[5], "wb");
+
+    if (out == NULL) {
+        fprintf(stderr, "Failed to open output file!\n");
+        return EXIT_FAILURE;
+    }
+
+    fwrite(&nacp, sizeof(nacp), 1, out);
+
+    fclose(out);
+
+    return EXIT_SUCCESS;
+}