Reading in filenames

This is a discussion on Reading in filenames within the C Programming forums, part of the General Programming Boards category; hey, i was just wondering how i would go about reading in the files in a certain directory (the same ...

  1. #1
    Shibby willc0de4food's Avatar
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    Reading in filenames

    hey, i was just wondering how i would go about reading in the files in a certain directory (the same dir that the prog is running in) of a certain type. while ripping my (legal) cd's to my computer, the program i use (CDex) adds like: 01-bandname _ songname.mp3
    i think. but yea.. windows xp, dev-c++ 4.9.2. thanks
    Last edited by willc0de4food; 08-22-2005 at 04:00 AM.
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  2. #2
    Shibby willc0de4food's Avatar
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    hmm...i wrote a program which suites my needs. you can find the source here: http://www.angelfire.com/droid/willc...ource/rename.c

    but it would be really nice to know how to make a list of the filenames in a dir in C rather than using the system() & DOS commands, lol
    Last edited by willc0de4food; 08-22-2005 at 05:32 AM.
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  3. #3
    and the hat of int overfl Salem's Avatar
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    > but it would be really nice to know how to make a list of the filenames in a dir in C
    http://faq.cprogramming.com/cgi-bin/...&id=1044780608
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
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  4. #4
    Shibby willc0de4food's Avatar
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    thanks
    mm..on the first example, which is claimed to be provided by you, i get errors on my compiler :-[
    Compiler: Default compiler
    Executing gcc.exe...
    gcc.exe "C:\Dev-Cpp\projects\finder.c" -o "C:\Dev-Cpp\projects\finder.exe" -I"C:\Dev-Cpp\include" -L"C:\Dev-Cpp\lib"
    C:\Dev-Cpp\projects\finder.c: In function `walker':
    C:\Dev-Cpp\projects\finder.c:10: error: storage size of 'finder' isn't known
    C:\Dev-Cpp\projects\finder.c:15: error: `FA_DIREC' undeclared (first use in this function)
    C:\Dev-Cpp\projects\finder.c:15: error: (Each undeclared identifier is reported only once
    C:\Dev-Cpp\projects\finder.c:15: error: for each function it appears in.)
    C:\Dev-Cpp\projects\finder.c:15: error: `FA_ARCH' undeclared (first use in this function)

    C:\Dev-Cpp\projects\finder.c:26: error: `MAXPATH' undeclared (first use in this function)

    Execution terminated
    any ideas why? mm..the next example works, but i'll have to see if i can modify it for my needs.

    thanks
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  5. #5
    Frequently Quite Prolix dwks's Avatar
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    Well, it can't find the structure
    Code:
    struct ffblk  finder;
    and some other things. Try this (it works in Dev-C++)
    Code:
    #include <unistd.h>
    
    void list(void) {
        DIR *dir;
        struct dirent *d;
    
        dir = opendir(".");  /* path to open */
    
        while(d = readdir(dir)) {
            puts(d->d_name);
        }
    
        closedir(dir);
    }
    All from memory. You should check the return value of opendir(), too.

    [edit]
    Or try the *NIX example in the FAQ. It's better than mine.
    [/edit]
    Last edited by dwks; 08-22-2005 at 02:35 PM.
    dwk

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  6. #6
    Shibby willc0de4food's Avatar
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    lol i am using the *nix example from the faq.
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  7. #7
    Frequently Quite Prolix dwks's Avatar
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    So does it work?
    dwk

    Seek and ye shall find. quaere et invenies.

    "Simplicity does not precede complexity, but follows it." -- Alan Perlis
    "Testing can only prove the presence of bugs, not their absence." -- Edsger Dijkstra
    "The only real mistake is the one from which we learn nothing." -- John Powell


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  8. #8
    Shibby willc0de4food's Avatar
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    yes, it makes a list of the filenames in the dir. but i can't filter out just the filenames w/the .mp3 extension. idk why, but its not working lol
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  9. #9
    and the hat of int overfl Salem's Avatar
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    h = FindFirstFile("*.*", &info);
    becomes
    h = FindFirstFile("*.mp3", &info);
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
    I support http://www.ukip.org/ as the first necessary step to a free Europe.

  10. #10
    ATH0 quzah's Avatar
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    Quote Originally Posted by willc0de4food
    yes, it makes a list of the filenames in the dir. but i can't filter out just the filenames w/the .mp3 extension. idk why, but its not working lol
    I suspect you're going to starve.
    Quote Originally Posted by Salem
    h = FindFirstFile("*.*", &info);
    becomes
    h = FindFirstFile("*.mp3", &info);
    Apparently, you can give a man some source code, but you can't make'm think.


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    Hope is the first step on the road to disappointment.

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