getting path to my prog

[Unregistered]

i'm programming a console application for windows.
it takes a file as an argument and parses this one. in the file keywords.cfg are the keywords which it should find in the text.

so far so good. i want to put my programm and my keywords.cfg in the c:\winnt directory so that it can be called from anywhere. now the problem:

fopen suggest the file to be in the directory i am currentli working on (in the console). so how can i find out the location where my programm is stored and it's config-file. (because the programm could be anywhere else an this directory included in the PATH variable.)


thanks

stormbringer (will register late :-)

[shaik786]

What compiler are you using?

[stormbringer]

i am using lcc. why does that mater? the prog shall detect it's path at runtime.

[Salem]

What does this tell you?

int main ( int argc, char *argv[] ) {
    printf( "Here I am - %s\n", argv[0] );
    return 0;
}

[stormbringer]

ou, that easy

thanks. sometimes you don't see the tree because of the forest.

[stormbringer]

well, not that easy. using rundos it gives the correct pathname, but when i'm in the command shell, argv just contains the filename, not the path.

[stormbringer]

correction

if you start the programm directly from the compiler progi, argv[0] contains the whole path because the compiler prog calls it with the full path. if you enter comandline in windows (cmd) you normaly just write the name of the programm. and thats what is in argv. just the name, not the path.

any idea?

[Salem]

The more expansive solution is based on this - you need to add a bit of detail

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

int main ( int argc, char *argv[] ) {
    char    *env, *path, *p;
    char    cwd[PATH_MAX];

    // if argv[0] doesn't begin with D:
    // then it's probably relative to either PATH or CWD
    printf( "%s\n", argv[0] );
    env = getenv("PATH");

    if ( env != NULL ) {
        // copy the string, because we're going to use strtok
        path = malloc( strlen(env) + 1 );
        strcpy( path, env );

        // append argv[0] onto each p, and see if the file exists
        for ( p = strtok(path,";");
              p != NULL;
              p = strtok(NULL,";") ) {
            printf( "Path=%s\n", p );
        }

        free( path );
    }

    // still not found, try current dir
    getcwd( cwd, sizeof(cwd) );
    printf( "CWD=%s\n", cwd );

    return 0;
}

[Hammer]

Originally posted by Unregistered
so far so good. i want to put my programm and my keywords.cfg in the c:\winnt directory so that it can be called from anywhere. now the problem:

fopen suggest the file to be in the directory i am currentli working on (in the console). so how can i find out the location where my programm is stored and it's config-file. (because the programm could be anywhere else an this directory included in the PATH variable.)

Maybe I'm reading you wrong, but the bold bits (above) answer themselves.. yes?

You said the program and the config file are in c:\winnt. Then you asked where are the program and config file? Well, they're in the c:\winnt directory! But then you said the program could be elsewhere. Come on, make up your mind

In your program, when you open keywords.cfg, use the full pathname.

[Unregistered]

they are in c:\winnt for testing purposes. they will be moved to an own folder (which the user specify themself) an included into the path.