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[/] [or1k/] [branches/] [newlib/] [newlib/] [newlib/] [libc/] [sys/] [go32/] [crlf2nl.c] - Rev 39
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/* This is file CRLF2NL.C */ /* ** Copyright (C) 1991 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954 ** ** This file is distributed under the terms listed in the document ** "copying.dj", available from DJ Delorie at the address above. ** A copy of "copying.dj" should accompany this file; if not, a copy ** should be available from where this file was obtained. This file ** may not be distributed without a verbatim copy of "copying.dj". ** ** This file is distributed WITHOUT ANY WARRANTY; without even the implied ** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. */ unsigned crlf2nl(char *buf, unsigned len) { char *bp = buf; int i=0; while (len--) { if (*bp != 13) { *buf++ = *bp; i++; } bp++; } return i; } unsigned readcr(int fd, char *buf, unsigned len) { unsigned i; i = read(fd, buf, len); if (i <= 0) return i; return crlf2nl(buf, i); } static char *sbuf = 0; #define BUFSIZE 4096 unsigned writecr(int fd, char *buf, unsigned len) { unsigned bufp=0, sbufp=0, crcnt=0, rlen=0; int rv; if (sbuf == 0) sbuf = (char *)malloc(BUFSIZE+1); while (len--) { if (buf[bufp] == 10) { crcnt++; sbuf[sbufp++] = 13; } sbuf[sbufp++] = buf[bufp++]; if ((sbufp >= BUFSIZE) || (len == 0)) { rv = write(fd, sbuf, sbufp); if (rv < 0) return rv; rlen += rv - crcnt; crcnt = 0; sbufp = 0; } } return rlen; }
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