Desktop/xinu_mips-1.0.2.tar/xinu_mips-1.0.2/lib/libxc/fgets.c

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/* Embedded XINU, Copyright (C) 2007.  All rights reserved. */

#define NULL    0
extern int getc(int);

char *fgets(int dev, char *s, int n)
{
        int c = 0;
        char *cs;
        cs = s;

        /* Read characters until maximum read length, */
        /*  end of line, or end of file               */
    while ((--n>0) && ((c = getc(dev))>=0)) 
        {
                *cs++ = c;
                if (('\n' == c) || ('\r' == c))
                { break; }
        }
        
        /* Check for EOF or empty string */
        if ((c<0) && (cs==s))
        { return NULL; }

        /* Terminate string and return */
        *cs++ = '\0';
        return s;
}

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