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avoiding buffer overflow in silly iax lib

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@14910 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale 2009-09-17 21:49:55 +00:00
parent d2b797fe54
commit a6f605d0e7
1 changed files with 21 additions and 10 deletions
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31
src/mod/endpoints/mod_iax/iax2-parser.c
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@ -363,6 +363,8 @@ void iax_showframe(struct iax_frame *f, struct ast_iax2_full_hdr *fhi, int rx, s
"FWDOWNLD", "FWDOWNLD",
"FWDATA" "FWDATA"
}; };
const char *cmds[] = { const char *cmds[] = {
"(0?)", "(0?)",
"HANGUP ", "HANGUP ",
@ -370,9 +372,26 @@ void iax_showframe(struct iax_frame *f, struct ast_iax2_full_hdr *fhi, int rx, s
"RINGING", "RINGING",
"ANSWER ", "ANSWER ",
"BUSY ", "BUSY ",
"TKOFFHK ", "TKOFFHK",
"OFFHOOK" "OFFHOOK",
"CONGSTN",
"FLASH ",
"WINK ",
"OPTION ",
"RDKEY ",
"RDUNKEY",
"PROGRES",
"PROCDNG",
"HOLD ",
"UNHOLD ",
"VIDUPDT",
"T38 ",
"SRCUPDT",
"TXFER ",
"CNLINE ",
"REDIR ",
}; };
struct ast_iax2_full_hdr *fh; struct ast_iax2_full_hdr *fh;
char retries[20]; char retries[20];
char class2[20]; char class2[20];
@ -423,14 +442,6 @@ void iax_showframe(struct iax_frame *f, struct ast_iax2_full_hdr *fhi, int rx, s
subclass = subclass2; subclass = subclass2;
} }
if (!subclass) {
subclass = "";
}
if (!class) {
class = "";
}
snprintf(tmp, (int) sizeof(tmp), snprintf(tmp, (int) sizeof(tmp),
"%s-Frame Retry[%s] -- OSeqno: %3.3d ISeqno: %3.3d Type: %s Subclass: %s\n", "%s-Frame Retry[%s] -- OSeqno: %3.3d ISeqno: %3.3d Type: %s Subclass: %s\n",
(rx ? "Rx" : "Tx"), retries, fh->oseqno, fh->iseqno, class, subclass); (rx ? "Rx" : "Tx"), retries, fh->oseqno, fh->iseqno, class, subclass);