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fix 362512 issues with rfc2047 encoding, sr=mscott

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git-svn-id: svn://10.0.0.236/branches/MOZILLA_1_8_BRANCH@216275 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
bienvenu%nventure.com
2006-12-01 19:26:30 +00:00
parent cb9aabf121
commit b99b56515e
1 changed files with 8 additions and 2 deletions
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10
mozilla/mailnews/mime/src/comi18n.cpp
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@@ -594,13 +594,19 @@ char * apply_rfc2047_encoding(const char *_src, PRBool structured, const char *c
if (!_src)
return nsnull;
if ((src = src_head = nsCRT::strdup(_src)) == nsnull)
//<TAB>=?<charset>?<B/Q>?...?=<CRLF>
PRInt32 perLineOverhead = strlen(charset) + 10;
if (perLineOverhead > foldlen || (src = src_head = nsCRT::strdup(_src)) == nsnull)
return nsnull;
/* allocate enough buffer for conversion, this way it can avoid
do another memory allocation which is expensive
*/
outputlen = strlen(src) * 4 + kMAX_CSNAME + 8;
PRInt32 charsPerLine = (foldlen - perLineOverhead) / 4;
PRInt32 maxNumLines = (strlen(src) / charsPerLine) + 1;
outputlen = strlen(src) * 4 + (maxNumLines * perLineOverhead) + 20 /* fudge */;
if ((outputtail = output = (char *)PR_Malloc(outputlen)) == nsnull) {
PR_Free(src_head);
return nsnull;