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routed(8): Misc. cleanups to squelch Coverity.

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table.c:
Copy into fixed size buffer.

trace.c:
Argument got dup2() cannot be negative.
Copy into fixed size buffer.

CID:		1006785, 1006786, 271301
Obtained from:	NetBSD
MFC after:	2 weeks.
This commit is contained in:
Pedro F. Giffuni 2016-05-15 03:04:21 +00:00
parent 415f6c24dd
commit e09d48f656
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=299825
2 changed files with 10 additions and 4 deletions
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2
sbin/routed/table.c
View File

@ -1228,7 +1228,7 @@ read_rt(void)
continue; /* ignore compat message */
#endif
strcpy(str, rtm_type_name(m.r.rtm.rtm_type));
strlcpy(str, rtm_type_name(m.r.rtm.rtm_type), sizeof(str));
strp = &str[strlen(str)];
if (m.r.rtm.rtm_type <= RTM_CHANGE)
strp += sprintf(strp," from pid %d",m.r.rtm.rtm_pid);

12
sbin/routed/trace.c
View File

@ -205,6 +205,8 @@ trace_close(int zap_stdio)
fclose(ftrace);
ftrace = NULL;
fd = open(_PATH_DEVNULL, O_RDWR);
if (fd < 0)
return;
if (isatty(STDIN_FILENO))
(void)dup2(fd, STDIN_FILENO);
if (isatty(STDOUT_FILENO))
@ -439,9 +441,12 @@ addrname(naddr addr, /* in network byte order */
} bufs[NUM_BUFS];
char *s, *sp;
naddr dmask;
size_t l;
int i;
s = strcpy(bufs[bufno].str, naddr_ntoa(addr));
strlcpy(bufs[bufno].str, naddr_ntoa(addr), sizeof(bufs[bufno].str));
s = bufs[bufno].str;
l = sizeof(bufs[bufno].str);
bufno = (bufno+1) % NUM_BUFS;
if (force == 1 || (force == 0 && mask != std_mask(addr))) {
@ -451,10 +456,11 @@ addrname(naddr addr, /* in network byte order */
if (mask + dmask == 0) {
for (i = 0; i != 32 && ((1<<i) & mask) == 0; i++)
continue;
(void)sprintf(sp, "/%d", 32-i);
(void)snprintf(sp, s + l - sp, "/%d", 32-i);
} else {
(void)sprintf(sp, " (mask %#x)", (u_int)mask);
(void)snprintf(sp, s + l - sp, " (mask %#x)",
(u_int)mask);
}
}