misc.c

基于周立功FAT32文件系统建立的项目

/* Basic functions */
char *strupr(char *str)
{
    char *cp;
    
    cp = str;
    while (*cp != 0)
    {
        if (*cp >= 'a' && *cp <= 'z' )
        {
            *cp -=  'a' - 'A';
        }
        cp++;
    }
    return str;
}

void *memset(void *s, char ch, unsigned int len)
{
    char *t;
    unsigned int i;

    t = (char *)s;

    for(i = 0; i < len; i++, t++)
        *t = ch;

    return s;
}