Importing C libs that aren't in stdlib

Hello all. I have a function that I want to call that belongs to a C program, net-tools/rarp.c at master * ecki/net-tools * GitHub ... Since the net-tools package isn't standard on Ubuntu, it requires an apt-get install.

Now if I want to import a function from rarp, how would I go about doing that? Should I copy and paste the code into my project's directory? I can see the executable in /sbin/rarp. But how can I use some of the functions from that in my own C code? Thanks for helping me learn :biggrin:

Well for small one-off functions, the simplest is to just copy the code - providing the licence terms are something you can agree to.

If you only have /sbin/rarp, then you're stuck with just running the program with whatever command line parameters give you access to that function.

Thanks Salem that helps

You could create an executable that imports the data and prints out a new file. using some sort of tag for when it gets injected.

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You could create an executable that imports the data and prints out a new file.

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create.c:

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#include <stdio.h>
#include <string.h>

#define OPEN '~'
#define CLOSE '~'
#define MAX_DEPTH 10
#define MAX_SIZE 128

int lock[MAX_DEPTH];
char results[MAX_DEPTH][MAX_SIZE];

char *data = "~./import.c~\n~./a.c~\n";

void readFile(char *filename) {
    FILE *fp = fopen(filename, "r");
    int readChar = 0, bp = 0;
    char buffer[30], ch;
    while ((ch = fgetc(fp)) != EOF) printf("%c",ch);
    fclose(fp);
}

int main(int args,char *argv[]) {

    int spot = -1, read = 0, nest = 0;
    int sLen = strlen(data);

    while (++spot < sLen) {
        if (data[spot] == OPEN) {
            nest++;
        } else if (data[spot] == CLOSE) {
            nest--;
        } else {
            results[nest][lock[nest]++] = data[spot];
        }
    }

    for (int i=0; i<MAX_DEPTH; i++) {
        if (results[i][0] == '.' || results[i][1] == '/' ) {
            readFile(results[i]);
        } else  {
            printf("%s",results[i]);
        }
    }

    return 0;
}

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gcc create.c -o create.exe

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create > output.c

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