Linux, qsort, segmentation fault question.

[CNewbie]

Ok this code is just like the code before, but it shows the exact problem, it will compile fine, no errors, no warnings, but when it runs it just gets a "Segmentation Fault", and outputs nothing, but if I // remark out the qsort( funtion line, it compiles fine, and outputs perfectly, albeit unsorted.
Any help, ideas, again, im using linux and gcc.

gcc -g -Wall -I../../../include test.c -o test

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

char tstring[256];
char tgot[256];
char tname[256];
char tdata[50000][256];
int tfi=0;
int i=0;
DIR *pd;
struct dirent *allp;

static int scomp(const void *p1, const void *p2)
{
char *a = * (char **) p1;
char *b = * (char **) p2;
return strcasecmp(a,b);
}

int main()
{
pd = opendir (&quot;/mnt/winc/Music&quot;
if ( pd != NULL ) {
while ( (allp = readdir(pd)) ) {
sprintf(tstring,&quot;%s&quot;,allp->d_name);
strcpy(tgot,tstring);
strcpy(tname,(&tgot[0]));
sprintf(tdata[tfi],&quot;%s&quot;,tname);
tfi++;
}
}
tfi=tfi-1;
closedir(pd);
qsort(tdata, tfi, sizeof tdata[0], scomp);
i=0;
do {
printf(&quot;%s\n&quot;,tdata);
i++;
}while (i<tfi);
printf(&quot;%d\n&quot;,i);
return 0;
}

 

[Kenrae]

I've never declared the comprison function as static, but I don't know if this is important here.
I can't see any error on your code, I'd try to put a printf inside scomp function to see if it's being executed at least once, and what the strings are inside it. I'm sorry I can't be more helpful :-(
BTW, why this

tfi=tfi-1;

line? You aren't sorting the last element. Oh, and I'd substitute sprintf calls by strcpy calls, it's safer.