“C in Java konvertieren” Code-Antworten

C -Code zum Java -Konverter

#include <stdio.h>
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C -Code zum Java -Konverter

#include<stdio.h>
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C in Java konvertieren

decode_rfc3397(char *out, ssize_t len, int pl, const uint8_t *p)
{
	const uint8_t *r, *q = p;
	int count = 0, l, hops;
	uint8_t ltype;
	while (q - p < pl) {
		r = NULL;
		hops = 0;
		/* We check we are inside our length again incase
		 * the data is NOT terminated correctly. */
		while ((l = *q++) && q - p < pl) {
			ltype = l & 0xc0;
			if (ltype == 0x80 || ltype == 0x40)
				return 0;
			else if (ltype == 0xc0) { /* pointer */
				l = (l & 0x3f) << 8;
				l |= *q++;
				/* save source of first jump. */
				if (!r)
					r = q;
				hops++;
				if (hops > 255)
					return 0;
				q = p + l;
				if (q - p >= pl)
					return 0;
			} else {
				/* straightforward name segment, add with '.' */
				count += l + 1;
				if (out) {
					if ((ssize_t)l + 1 > len) {
						errno = ENOBUFS;
						return -1;
					}
					memcpy(out, q, l);
					out += l;
					*out++ = '.';
					len -= l;
					len--;
				}
				q += l;
			}
		}
		/* change last dot to space */
		if (out)
			*(out - 1) = ' ';
		if (r)
			q = r;
	}
	/* change last space to zero terminator */
	if (out)
		*(out - 1) = 0;
	return count;  
}
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