Imanol-Mikel Barba Sabariego / mcplayerstat · Commits

Commit cf8d93723c3794db71c89936c69334b4ce61d349

Authored by Imanol-Mikel Barba Sabariego
1 parent 4f07b876

Use new version of libnbt

Inline Side-by-side
Showing 1 changed file with 46 additions and 67 deletions
mcplayerstat.c
  View file @cf8d937
1 #include <stdio.h> 1 #include <stdio.h>
2 -#include <unistd.h>  
3 -#include <sys/mman.h>  
4 -#include <sys/stat.h>  
5 -#include <fcntl.h>  
6 -#include <stdint.h>  
7 -#include <byteswap.h>  
8 2
9 #include "nbt.h" 3 #include "nbt.h"
10 4
11 -double convertDouble(uint64_t data) {  
12 - double d = 0;  
13 - uint64_t swapped = __bswap_64(data);  
14 - memcpy(&d,&swapped,sizeof(uint64_t));  
15 - return d;  
16 -}  
17 -  
18 void printInventory(TagList *inv) { 5 void printInventory(TagList *inv) {
19 for(int j = 0; j < inv->size; ++j) { 6 for(int j = 0; j < inv->size; ++j) {
20 TagCompound item = *(TagCompound*)inv->list[j].payload; 7 TagCompound item = *(TagCompound*)inv->list[j].payload;
@@ -36,63 +23,60 @@ void printInventory(TagList *inv) { @@ -36,63 +23,60 @@ void printInventory(TagList *inv) {
36 } 23 }
37 24
38 int parseMCPlayerFile(const char* filename) { 25 int parseMCPlayerFile(const char* filename) {
39 - struct stat sb;  
40 unsigned int pos = 0; 26 unsigned int pos = 0;
  27 + void* data;
41 28
42 - int fd = open(filename,O_RDONLY);  
43 - if(fd == -1) {  
44 - perror("Can't open file");  
45 - return 3;  
46 - }  
47 - fstat(fd, &sb);  
48 -  
49 - void* mappedFile = mmap(NULL,sb.st_size,PROT_READ,MAP_PRIVATE,fd,0); 29 + ssize_t dblen = loadDB(filename, &data);
  30 + if(dblen > 0) {
  31 + // int playerGameType
  32 + // int XpLevel
  33 + // list(compound) Inventory
  34 + // list(compound) EnderItems
  35 + // list(float) Pos
50 36
51 - // int playerGameType  
52 - // int XpLevel  
53 - // list(compound) Inventory  
54 - // list(compound) EnderItems  
55 - // list(float) Pos  
56 -  
57 - Tag t;  
58 - pos = parseTag((mappedFile + pos),&t);  
59 - if(pos != sb.st_size) {  
60 - fprintf(stderr,"Didn't reach end of NBT file\n");  
61 - return 4;  
62 - } 37 + Tag t;
  38 + pos = parseTag((data + pos),&t);
  39 + if(pos != dblen) {
  40 + fprintf(stderr,"Didn't reach end of NBT file\n");
  41 + return 4;
  42 + }
63 43
64 - TagCompound root = *(TagCompound*) t.payload;  
65 - for(int i = 0; i < root.numTags; ++i) {  
66 - Tag node = root.list[i];  
67 - if(node.type == TAG_INT) {  
68 - if(!strncmp(node.name,"playerGameType",node.nameLength)) {  
69 - int playerGameType = __bswap_32(*((uint32_t*)node.payload));  
70 - printf("playerGameType: %s\n",(playerGameType == 0 ? "Survival" : (playerGameType == 1 ? "Creative" : (playerGameType == 2 ? "Adventure" : (playerGameType == 3 ? "Spectator" : "UNKNOWN")))));  
71 - } else if (!strncmp(node.name,"XpLevel",node.nameLength)) {  
72 - int xpLevel = __bswap_32(*((uint32_t*)node.payload));  
73 - printf("XpLevel: %u\n",xpLevel);  
74 - }  
75 - } else if(node.type == TAG_LIST) {  
76 - TagList* l = (TagList*)node.payload;  
77 - if(!strncmp(node.name,"Inventory",node.nameLength)) {  
78 - printf("Inventory:\n");  
79 - printInventory(l);  
80 - } else if (!strncmp(node.name,"EnderItems",node.nameLength)) {  
81 - printf("Ender Inventory:\n");  
82 - printInventory(l);  
83 - } else if (!strncmp(node.name,"Pos",node.nameLength)) {  
84 - double x = convertDouble((*(uint64_t*)l->list[0].payload));  
85 - double y = convertDouble((*(uint64_t*)l->list[1].payload));  
86 - double z = convertDouble((*(uint64_t*)l->list[2].payload));  
87 - printf("Pos: (x: %f,y: %f,z: %f)\n",x,y,z); 44 + TagCompound root = *(TagCompound*) t.payload;
  45 + for(int i = 0; i < root.numTags; ++i) {
  46 + Tag node = root.list[i];
  47 + if(node.type == TAG_INT) {
  48 + if(!strncmp(node.name,"playerGameType",node.nameLength)) {
  49 + int playerGameType = *((uint32_t*)node.payload);
  50 + printf("playerGameType: %s\n",(playerGameType == 0 ? "Survival" : (playerGameType == 1 ? "Creative" : (playerGameType == 2 ? "Adventure" : (playerGameType == 3 ? "Spectator" : "UNKNOWN")))));
  51 + } else if (!strncmp(node.name,"XpLevel",node.nameLength)) {
  52 + int xpLevel = *((uint32_t*)node.payload);
  53 + printf("XpLevel: %u\n",xpLevel);
  54 + }
  55 + } else if(node.type == TAG_LIST) {
  56 + TagList* l = (TagList*)node.payload;
  57 + if(!strncmp(node.name,"Inventory",node.nameLength)) {
  58 + printf("Inventory:\n");
  59 + printInventory(l);
  60 + } else if (!strncmp(node.name,"EnderItems",node.nameLength)) {
  61 + printf("Ender Inventory:\n");
  62 + printInventory(l);
  63 + } else if (!strncmp(node.name,"Pos",node.nameLength)) {
  64 + double x = (*(double*)l->list[0].payload);
  65 + double y = (*(double*)l->list[1].payload);
  66 + double z = (*(double*)l->list[2].payload);
  67 + printf("Pos: (x: %f,y: %f,z: %f)\n",x,y,z);
  68 + }
88 } 69 }
89 } 70 }
  71 +
  72 + destroyTag(&t);
  73 + free(data);
  74 + return 0;
90 } 75 }
91 76
92 - destroyTag(&t);  
93 - munmap(mappedFile,sb.st_size);  
94 - close(fd);  
95 - return 0; 77 +
  78 +
  79 +
96 } 80 }
97 81
98 int main(int argc, char** argv) { 82 int main(int argc, char** argv) {
@@ -101,10 +85,5 @@ int main(int argc, char** argv) { @@ -101,10 +85,5 @@ int main(int argc, char** argv) {
101 return 1; 85 return 1;
102 } 86 }
103 87
104 - if(access(argv[1],R_OK) == -1) {  
105 - perror("Can't access file");  
106 - return 2;  
107 - }  
108 -  
109 return parseMCPlayerFile(argv[1]); 88 return parseMCPlayerFile(argv[1]);
110 } 89 }
111 \ No newline at end of file 90 \ No newline at end of file