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Safely use the strncat() function.

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(closes issue #11958)
 Reported by: norman
 Patches: 
       20080209__bug11958.diff.txt uploaded by Corydon76 (license 14)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@106552 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2008-03-07 06:36:33 +00:00
parent 24ca0899c2
commit 56e908b787
10 changed files with 23 additions and 27 deletions
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6
main/frame.c
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@@ -1091,16 +1091,16 @@ int ast_codec_pref_string(struct ast_codec_pref *pref, char *buf, size_t size)
slen = strlen(formatname);
if(slen > total_len)
break;
strncat(buf,formatname,total_len);
strncat(buf, formatname, total_len - 1); /* safe */
total_len -= slen;
}
if(total_len && x < 31 && ast_codec_pref_index(pref , x + 1)) {
strncat(buf,"|",total_len);
strncat(buf, "|", total_len - 1); /* safe */
total_len--;
}
}
if(total_len) {
strncat(buf,")",total_len);
strncat(buf, ")", total_len - 1); /* safe */
total_len--;
}