LinuxQuestions.org - a CGI written in C, problem with an fopen() system call

hello everyone. i have a question regaurding fopen() system call in C (this program is a CGI)..

well, for some reason, this snippet of code errors... every other fopen() seems to work 'cept for this one, and i don't think i've done anything differently from my other fopen() calls

Code:

#define HASHES "/path/to/hashes"

/* arg1-arg6 + user + pass are parsed out elsewhere from

  getenv("QUERY_STRING")

 */

/* massive part of code omitted */

c_adduser(C_PARAM)

{

if(atoi(arg3) == 1)

  {

  char hashbuff[1024];

  char hash[1024];

  FILE *HashFile;

  char* HashArrayTable[2];

  

  sprintf(hash, "%s/%s", HASHES, arg5);

/***************** this is the problem **************************************/

  if((HashFile=fopen(hash, "r")) == NULL);

    {

    fprintf(stderr, "[%s] [error] [client: %s] ", ctime(time(NULL)), getenv("REMOTE_ADDR"));

    fprintf(stderr, "%s:", hash);

    perror("Unable to open");

    printf("Invalid service<p><p>\n");

    printf("<form method=\"GET\" action=\"http://futurenet.ath.cx/cgi-bin/webmin\">\n");

    printf("<input type=\"hidden\" name=\"page\" value=\"admin\">\n");

    printf("<input type=\"hidden\" name=\"arg1\" value=\"%s\">\n", arg1);

    printf("<input type=\"hidden\" name=\"arg2\" value=\"adduser\">\n");

    printf("<input type=\"hidden\" name=\"arg3\" value=\"1\">\n");

    printf("<b>Add User</b><p>\n");

    printf("User Name:&nbsp; <input type=\"text\" name=\"user\" size=\"20\" value=\"%s\"><p>\n", user);

    printf("Password:&nbsp; <input type=\"password\" name=\"pass\" size=\"20\"><p>\n");

    printf("Level:&nbsp; <input type=\"text\" name=\"arg4\" size=\"20\" value=\"%s\"><p>\n", arg4);

    printf("<b>*</b>Service:&nbsp; <select size=\"1\" name=\"arg5\">\n");

    dp=opendir(HASHES);

    while((dirp = readdir(dp)) != NULL){

      if(strcasecmp(dirp->d_name, " ") && strcasecmp(dirp->d_name, ".") && strcasecmp(dirp->d_name, ".."))

      {

        printf("<option>%s</option>\n", dirp->d_name);

      }

    }

    printf("</select>\n");

    closedir(dp);

    printf("<p><input type=\"submit\" name=\"arg6\" value=\"Add User\"><p>\n</form>\n");

    return(0);

    }

// code ommited

}

// lots more code omitted

for some reason, i get a "Numerical result out of range" when i try to fopen().. could anyone shed some light on the subject:Pengy: