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/* ========================================================================
* Copyright 1988-2006 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
*
* ========================================================================
*/
/*
* Program: Mac newline routines
*
* Author: Mark Crispin
* Networks and Distributed Computing
* Computing & Communications
* University of Washington
* Administration Building, AG-44
* Seattle, WA 98195
* Internet: MRC@CAC.Washington.EDU
*
* Date: 26 January 1992
* Last Edited: 30 August 2006
*/
/* Copy string with CRLF newlines
* Accepts: destination string
* pointer to size of destination string buffer
* source string
* length of source string
* Returns: length of copied string
*/
unsigned long strcrlfcpy (unsigned char **dst,unsigned long *dstl,
unsigned char *src,unsigned long srcl)
{
long i,j;
unsigned char c,*d = src;
if (*dst) { /* destination provided? */
if ((i = srcl * 2) > *dstl) /* calculate worst-case situation */
for (i = j = srcl; j; --j) if (*d++ == '\015') i++;
/* flush destination buffer if too small */
if (i > *dstl) fs_give ((void **) dst);
}
/* make a new buffer if needed */
if (!*dst) *dst = (char *) fs_get ((*dstl = i) + 1);
d = *dst; /* destination string */
if (srcl) do { /* copy string */
c = *d++ = *src++; /* copy character */
/* append line feed to bare CR */
if ((c == '\015') && (*src != '\012')) *d++ = '\012';
} while (--srcl);
*d = '\0'; /* tie off destination */
return d - *dst; /* return length */
}
/* Length of string after strcrlfcpy applied
* Accepts: source string
* Returns: length of string
*/
unsigned long strcrlflen (STRING *s)
{
unsigned long pos = GETPOS (s);
unsigned long i = SIZE (s);
unsigned long j = i;
while (j--) if ((SNX (s) == '\015') && ((CHR (s) != '\012') || !j)) i++;
SETPOS (s,pos); /* restore old position */
return i;
}
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