How to use libssh2 in C

[Zili]

I'm trying to make a C program to connect to an ssh server. I used an
apt-get install libssh2-1
but the linker can't find the libraries!
Can someone help me ?
Thank you.

[rpdom]

You'll probably need libssh2-1-dev for building programs. libssh2-1 (no -dev) is used just for running them.

[PeterO]

A useful command to use is "apt-cache search package-name-here" I'm not in fornt of a PI right now, but my MINT linux machine produced this output...

Code: Select all

$ apt-cache search  libssh2-1
libssh2-1 - SSH2 client-side library
libssh2-1-dbg - SSH2 client-side library (debug package)
libssh2-1-dev - SSH2 client-side library (development headers)
$

PeterO

[Zili]

Thanks to rpdom and PeterO.

The problem was trivial.
simply the library is not called libssh2.lib but ssh2 !
The compilation command is:
gcc -Wall -Wno-unused-function myProgram.c -o myProgram.exe -l ssh2

[jahboater]

The problem was trivial.
simply the library is not called libssh2.lib but ssh2 !

No, the library is called libssh2.lib
The C compiler driver fills in the full name for you.
For example, the math library is called "libm.so" but to use it in C you simply give "-lm"
The compiler added the "lib" at the front and the ".so" at the back.

[CanteoCantineo]

Can we import any C library using this method?

[jahboater]

Can we import any C library using this method?

As far as I know that's how C compilers have worked since the dawn of time.

[Heater]

jahboater,

As far as I know that's how C compilers have worked since the dawn of time.

Indeed. On Unix anyway.

On other systems the C compilers would sensibly accept whatever name the library had. No "lib" prefix required. It is kind of weird is it not?

I recall being mightily puzzled by this when discovering Linux in 1997 or so.

[PeterO]

libiberty is amusing

PeterO