I'm having some issues with my C program. I need the program to find all MP3 files and print how far in distance the songs are. AS of right now my prgram gives an error (ATTACHED) , I had the function commented out earlier and it does also compile fine but gives a segmentation fault. So, I'm thinking there is also an error with the malloc() call I used earlier. Ideally, after running the output needs to say (Ex: Green Day - Waiting.mp3, 2, Green Day - Warning.mp3). I have not made the print statement for that yet. Partial output is attached also. Any and all help is appreciated.

My CODE: **********************************************************

Using glob to read multiple mp3 files and finding

those with similar names using Wagner-Fischer alogorithm*/

#include

#include

#include

#include

static int editDist(char str1, char str2, int m, int n);

int main (int argc, char* argv[])

{

glob_t paths;

int csource;

char **p;

char *ext;

int dist;

ext = malloc(sizeof(char)* 100);/*SEGMENTATION FAULT HERE*/

ext = strcat("*.", argv[2]);

dist = atoi( argv[1]);

/* check and it works! printf("%d ", dist);*/

/*Finds all "mp3" in my directory*/

csource = glob(ext,dist,NULL,&paths);

if(csource == 0){

for(p=paths.gl_pathv; *p != NULL; ++p)

printf("%s ", *p); /* *p is the address of a string*/

globfree(&paths); /*frees memory*/

free(ext);

}

}

/*This is Wagner-Fischer algorithm*/

static int editDist(char str1, char str2, int m, int n){

int dp[m+1][n+1];

int i, j;

/*fill d[][] in bottom up manner*/

for(i=0; i

for(j=0; j

/*if fist string is empty, only option is to

remove all characters of second string*/

if(i==0)

dp[i][j] = j;

/*if second string is empty, only option is to

remove all characters of second string*/

else if(j==0)

dp[i][j] = i;

/*if last characters are the same, ignore last char

and recur for remaining string*/

else if(str1[i-1] == str2[j-1])

dp[i][j] = dp[i-1][j-1];

/*if the last character is different, consider all

possibilities and find the minimun*/

else

dp[i][j] = 1 + min(dp[i][j-1], /*insert*/

dp[i-1][j], /*remove*/

dp[i-1][j-1]); /*replace*/

}

}

return dp[m][n];

}

c In function 'editDist: c:34: warning: ISO C90 forbids variable-size array 'dp' c: 34: warning: ISO C90 forbids variable-size array 'dp' c:49: error: subscripted value is neither array nor pointer c:49: error: subscripted value is neither array nor pointer