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Fix buffer overflow problems in m_getfld.c

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kim 1999-03-07 19:40:01 +00:00
parent 4782f7c5e5
commit 1b5408dc6a
1 changed files with 31 additions and 0 deletions
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31
mail/nmh/patches/patch-cf Normal file
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@ -0,0 +1,31 @@
$NetBSD: patch-cf,v 1.1 1999/03/07 19:40:01 kim Exp $
--- sbr/m_getfld.c.orig Fri Jul 31 18:48:37 1998
+++ sbr/m_getfld.c Sun Mar 7 14:33:11 1999
@@ -259,7 +259,7 @@
bp = sp = (unsigned char *) iob->_ptr - 1;
j = (cnt = iob->_cnt+1) < i ? cnt : i;
#endif
- while ((c = *bp++) != ':' && c != '\n' && --j >= 0)
+ while (--j >= 0 && (c = *bp++) != ':' && c != '\n')
*cp++ = c;
j = bp - sp;
@@ -538,7 +538,7 @@
;
#else /* RPATHS */
cp = unixbuf;
- while ((c = getc (iob)) != '\n')
+ while ((c = getc (iob)) != '\n' && cp - unixbuf < BUFSIZ - 1)
*cp++ = c;
*cp = 0;
#endif /* RPATHS */
@@ -639,7 +639,7 @@
break;
#else /* RPATHS */
cp = unixbuf;
- while ((c = getc (iob)) != '\n' && c >= 0)
+ while ((c = getc (iob)) != '\n' && c >= 0 && cp - unixbuf < BUFSIZ - 1)
*cp++ = c;
*cp = 0;
#endif /* RPATHS */