Question

Code:

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

int main (int argc, char *argv[]) {
    char folderPath[1024];
    int i = 0;
    for (i; i < (strlen(argv[0]) - 7); i++) {
        folderPath[i] = argv[0][i];
    }
    printf("Command: afplay %ssong.mp3\n", folderPath);
    system("afplay %ssong.mp3", folderPath);
    return 0;
}

All Output:

Command: afplay /Users/carloabelli/Desktop/FUNNY/song.mp3
Error: AudioFileOpen failed (-43)

When I run the command from terminal it works perfectly. I was wondering what is going wrong.

Answer 1

system() does not use a format string. It takes the whole command as a literal string. Use sprintf() to format your command into a buffer and then send that buffer to system.

char buf[1024];
snprintf(buf, 1024, "afplay %ssong.mp3", folderPath);
system(buf);

or something along these lines.