Checking Directory and then Compiling

USing a linux OS, which woud be the best way to look in a directory and then once i find code to compiling it.

Mainly compiing and searching the directory for a certain file (*.c). What two packages are used for that on Linux? Thanks if you can help me.

-Sean

Usually, you'd use a Makefile per project, but

Code:

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find . -name *.c -print

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will at least find the files you're looking for in the current directory and any of its subdirectories.

Ok, I figured out how to search the local directory or any directory for that matter.
Mainly using <dirent.h>,

I can't exactly figure out how to catch a file, like one that says (8.c) at the end to compile it.

I am making a batch system so of course there is more to it than this. I just need a little help with this, thanks.

PX> to poster above: I need to write code that compiles it, not do it from the comman line, but it is still linux specific, or with the cc compiler.

If you must do it in C, you could use scandir, which may be what you've already found. just write a filter which returns 1 if the file's extension is .c, and pass the function name as the third parameter to scandir.

Code:

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int is_compilable_file(const struct direct *d)
{
    return (strstr(d->d_name, ".c") ? 1 : 0);
}

struct dirent **files;
int num_files = scandir(path_to_search, &files, is_compilable_file, 0);
if (-1 == num_files)
{
    // Handle error here
}

int i = 0;
for (; i < num_files; ++i)
{
    const char *compilable_file_name = files[i]->d_name;
    // Do whatever you need to compile it here.

    // Need to free memory allocated within scandir
    free(files[i]);
}
free(files);

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How do i compile it? I wonder if i should just output cc -c struct->dname or something.

system or popen would work.

Code:

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


int copyfile(char *fromfile, char *tofile)
{
        FILE *ifp, *ofp;
        int c;

        if((ifp = fopen(fromfile, "r")) == NULL) return -1;
        if((ofp = fopen(tofile, "w")) == NULL) { fclose(ifp); return -1; }

        while((c = getc(ifp)) != EOF)
                putc(c, ofp);

        fclose(ifp);
        fclose(ofp);

        return 0;
}

int main()
{
 static MAX = 1000;
 DIR *pdir;
 struct dirent *ent;
 char *c_file;
 char *c_file_hold[MAX];

 pdir = opendir(".");

 if (!pdir)
 {
 printf ("opendir() failure; terminating");
 exit(1);
 }

 int i = 0; //counter
 while((ent=readdir(pdir)))
 {     
        //strncpy(c_file , ent->d_name, 10);
        printf( "%s\n" , ent->d_name);
     
      if(istrstr(ent->d_name, ".c") ? 1 : 0)
        {
          sprintf(c_file, "cc %s", ent->d_name); //THIS HERE IS GIVING ME A SEGMENTATION FAULT
          system(c_file);
          system("a.out");
        }
 }

 closedir(pdir);
}

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Anyone know hwat I am doing wrong here? How can i get this to compile ?