On Tue, Jun 02, 2015 at 10:12:02AM -0700, Sukadev Bhattiprolu wrote:

SNIP

> +
> +static char *file_name_to_table_name(char *fname)
> +{
> +     unsigned int i, j;
> +     int c;
> +     int n = 1024;           /* use max variable length? */

I think this should be at least PATH_MAX, or you might
actually use asprintf and have all below done within
one line or so

jirka

> +     char *tblname;
> +     char *p;
> +
> +     tblname = malloc(n);
> +     if (!tblname)
> +             return NULL;
> +
> +     p = basename(fname);
> +
> +     memset(tblname, 0, n);
> +
> +     /* Ensure table name starts with an alphabetic char */
> +     strcpy(tblname, "pme_");
> +
> +     n = strlen(fname) + strlen(tblname);
> +     n = min(1024, n);
> +
> +     for (i = 0, j = strlen(tblname); i < strlen(fname); i++, j++) {
> +             c = p[i];
> +             if (isalnum(c) || c == '_')
> +                     tblname[j] = c;
> +             else if (c == '-')
> +                     tblname[j] = '_';
> +             else if (c == '.') {
> +                     tblname[j] = '\0';
> +                     break;
> +             } else {
> +                     pr_err("%s: Invalid character '%c' in file name %s\n",
> +                                     prog, c, p);
> +                     free(tblname);
> +                     return NULL;
> +             }
> +     }
> +
> +     return tblname;
> +}

SNIP
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev

Reply via email to