36 lines
1.6 KiB
Markdown
36 lines
1.6 KiB
Markdown
# c-multiaddr
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multiaddr for IPFS in C.
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### Multiaddr provides easy networking protocols nesting, easy encapsulation of extra protocols, easy tunneling, etc.
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# Usage:
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#### All you need to include is multiaddr.h
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## Maddr struct:
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* char string[]; // String that contains addresses such as /ip4/192.168.1.1/
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* uint8_t bytes; //String that contains the enecoded address
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* int bsize[]; //int[1] that contains the real bytes size (Use it whenever using the bytes so you don't input trash!)
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## New Multi Address From String(new_maddr_fs)
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char addrstr[] = "/ip4/192.168.1.1/"
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struct maddr a;
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a=new_maddr_fs(addrstr);
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## Obtaining the byte buffer(.bytes, .bsize[0]):
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printf("TEST BYTES: %s\n",Var_To_Hex(a.bsize[0], a.bytes));
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Var_To_Hex = Byte Buffer to Hex String
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Hex_To_Var = Hex String to Byte Buffer
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## Encapsulation & Decapsulation(m_encapsulate, m_decapsulate)
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#### Remember, Decapsulation happens from right to left, never in reverse, if you have /ip4/udp/ipfs/ if you decapsulate "udp" you will also take out ipfs!
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* Now the string is: /ip4/192.168.1.1/
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* m_encapsulate(&a,"/udp/3333/"); //Adds udp/3333/ to char addrstr
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* Now the string is: /ip4/192.168.1.1/udp/3333/
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* m_decapsulate(&a,"udp"); //Removes udp protocol and its address
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* Now the string is: /ip4/192.168.1.1/
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* m_encapsulate(&a,"/tcp/8080");
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* Now the string is: /ip4/192.168.1.1/tcp/8080/
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# Constructing a multiaddress from bytes:
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* struct maddr beta;
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* beta=new_maddr_fb(a.bytes,a.bsize[0]); //This will already construct back to the string too!
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* printf("B STRING: %s\n",beta.string); //So after encapsulation and decapsulation atm this string would
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* contain: /ip4/192.168.1.1/tcp/8080/
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