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fix off-by-one error in checks for implementation-internal signal numbers

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This commit is contained in:
Rich Felker
2013-07-18 19:21:06 -04:00
parent b823ef2db1
commit 23815f88df
3 changed files with 3 additions and 3 deletions
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2
src/signal/sigaddset.c
View File

@ -4,7 +4,7 @@
int sigaddset(sigset_t *set, int sig) int sigaddset(sigset_t *set, int sig)
{ {
unsigned s = sig-1; unsigned s = sig-1;
if (s >= 8*sizeof(sigset_t) || s-32U<3) { if (s >= 8*sizeof(sigset_t) || sig-32U<3) {
errno = EINVAL; errno = EINVAL;
return -1; return -1;
} }

2
src/signal/sigdelset.c
View File

@ -4,7 +4,7 @@
int sigdelset(sigset_t *set, int sig) int sigdelset(sigset_t *set, int sig)
{ {
unsigned s = sig-1; unsigned s = sig-1;
if (s >= 8*sizeof(sigset_t) || s-32U<3) { if (s >= 8*sizeof(sigset_t) || sig-32U<3) {
errno = EINVAL; errno = EINVAL;
return -1; return -1;
} }

2
src/signal/sigismember.c
View File

@ -4,7 +4,7 @@
int sigismember(const sigset_t *set, int sig) int sigismember(const sigset_t *set, int sig)
{ {
unsigned s = sig-1; unsigned s = sig-1;
if (s >= 8*sizeof(sigset_t) || s-32U<3) { if (s >= 8*sizeof(sigset_t) || sig-32U<3) {
errno = EINVAL; errno = EINVAL;
return -1; return -1;
} }