Creating files in a specific directory

[hinesro]

Hello again, I am trying to generate 7 files in an already created directory. My code compiles and runs, but when I check inside the directory, nothing is there. Can anyone offer any suggestions? Edit: I should also mention that if I create these without trying to specify a directory, they are all created in the program directory exactly how I would expect.

void generateRooms(char *roomsDirectory) {
    int bufSize = 20;
    char *currentFile = malloc(bufSize);
    char *prefix = "room_";

    int i;
    for(i = 0; i < 7; i++) {
        snprintf(currentFile, bufSize, "%s/%s%d", roomsDirectory, prefix, i+1);
        FILE *f = fopen(currentFile, "w");
    }
}

[Yarin]

You don't check if the openings were successful, and you don't close the files after you open them.

[hinesro]

Simply opening them should create the files if they don't yet exist, no? Anyway, checking for success shows that it is indeed failing to open.

void generateRooms(char *roomsDirectory) {
    int bufSize = 20;
    char *currentFile = malloc(bufSize);
    char *prefix = "room_";

    int i;
    for(i = 0; i < 7; i++) {
        snprintf(currentFile, bufSize, "%s/%s%d", roomsDirectory, prefix, i+1);
        FILE *f = fopen(currentFile, "w");
        if (f == NULL) {
            printf("Error: Failed to open %s.\n", currentFile);
            exit(1);
        }
        fclose(f);
    } 
}

It seems like it really shouldn't be that hard to just create a directory (which has been done), and then create some files in that directory. Any helpful guidance would really be appreciated.

[hinesro]

Solved, buffer wasn't big enough for the entire path.

[Salem]

So why are you ignoring the advice in your previous thread, regarding buffer lengths?
You persist in using malloc to allocate small buffers which are way too easy to overflow by accident, and then you leak the memory as well.

fopen() will not create a directory for you.

roomsDirectory MUST already exist, and the current directory MUST be the parent directory of roomsDirectory.
If either of these isn't true, the program will fail.

[hinesro]

Thanks.