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⬅️ Previous capture (2023-01-29)
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makeHeader.c (2483B)
1 #include "libsheepyObject.h"
2 #include "shpPackages/short/short.h"
3
4 /*
5 packet structures:
6 0 - send file
7 u8 command = 0
8 u8 token[8]
9 u16 filenameLength
10 <filename>
11 u16 filemode
12 u16 pathLength
13 <path>
14 u64 filesize
15 <filedata>
16 1 - mkdir
17 u8 command = 0
18 u8 token[8]
19 u16 filemode
20 u16 pathLength
21 <path>
22 2 - download/receive files
23 u8 command = 0
24 u8 token[8]
25 u16 pathLength
26 <path>
27 */
28
29 void makeHeader(u8 *buf, u32 *bufip, u8 command, smallDictt *svrInfo, char *sendFile, char *destPath, u64 **filesize) {
30
31 // command
32 // token
33 // file name max 8k
34 // file mode
35 // dest path
36
37 lv(sendFile);
38 lv(destPath);
39
40 // command
41 buf[0] = command;
42 // token
43 if (svrInfo)
44 memcpy(buf + 1, $(svrInfo, "token"), 8);
45 else
46 // used for downloading files from server to client
47 pError0(zeroBuf(buf + 1, 8));
48
49 u32 bufi = 0;
50 if (command == 0) {
51 // send file
52 // file name max 8k
53 u16 *filenameLength = (u16*)(buf + 9);
54 char *filename = basename(sendFile);
55 *filenameLength = lenG(filename);
56 memcpy(buf + 11, filename, lenG(filename));
57 bufi = 11 + lenG(filename);
58 // file mode
59 u16 *filemode = (u16*)(buf + bufi);
60 struct stat st;
61 if(stat(sendFile, &st) != 0){
62 logE("Can't access %s", sendFile);
63 XFailure;
64 }
65 *filemode = st.st_mode & 0xFFF;
66 bufi += 2;
67 // dest path
68 u16 *pathLength = (u16*)(buf + bufi);
69 *pathLength = lenG(destPath);
70 bufi += 2;
71 if (destPath) {
72 memcpy(buf + bufi, destPath, *pathLength);
73 bufi += *pathLength;
74 }
75 // file size
76 *filesize = (u64*)(buf + bufi);
77 **filesize = fileSizeG(sendFile);
78 bufi += 8;
79 }
80 elif (command == 1) {
81 // mkdir
82 u16 *filemode = (u16*)(buf + 9);
83 struct stat st;
84 if(stat(sendFile, &st) != 0){
85 logE("Can't access %s", sendFile);
86 XFailure;
87 }
88 *filemode = st.st_mode & 0xFFF;
89 // dest path
90 u16 *pathLength = (u16*)(buf + 11);
91 *pathLength = lenG(destPath);
92 memcpy(buf + 13, destPath, *pathLength);
93 bufi = 13 + lenG(destPath);
94 }
95 elif (command == 2) {
96 // download/receive files
97 // path in server
98 u16 *pathLength = (u16*)(buf + 9);
99 *pathLength = lenG(destPath);
100 memcpy(buf + 11, destPath, *pathLength);
101 bufi = 11 + lenG(destPath);
102 }
103
104 *bufip = bufi;
105 }
106 // vim: set expandtab ts=2 sw=2: