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-rw-r--r--src/shared/util.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/src/shared/util.c b/src/shared/util.c
index b48bad4c46..02ee6374c3 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -1184,8 +1184,11 @@ char *strnappend(const char *s, const char *suffix, size_t b) {
assert(suffix);
a = strlen(s);
+ if ((size_t) -1 - a > b)
+ return NULL;
- if (!(r = new(char, a+b+1)))
+ r = new(char, a+b+1);
+ if (!r)
return NULL;
memcpy(r, s, a);
@@ -5014,12 +5017,17 @@ char *strjoin(const char *x, ...) {
for (;;) {
const char *t;
+ size_t n;
t = va_arg(ap, const char *);
if (!t)
break;
- l += strlen(t);
+ n = strlen(t);
+ if (n > ((size_t) -1) - l)
+ return NULL;
+
+ l += n;
}
} else
l = 0;
@@ -5291,7 +5299,7 @@ int signal_from_string(const char *s) {
int offset = 0;
unsigned u;
- signo =__signal_from_string(s);
+ signo = __signal_from_string(s);
if (signo > 0)
return signo;
@@ -5683,7 +5691,7 @@ void warn_melody(void) {
if (fd < 0)
return;
- /* Yeah, this is synchronous. Kinda sucks. Bute well... */
+ /* Yeah, this is synchronous. Kinda sucks. But well... */
ioctl(fd, KIOCSOUND, (int)(1193180/440));
usleep(125*USEC_PER_MSEC);