Issue 675: SIGRTMAX can be non-constant, so allocate the signal tracking array at runtime

1 files changed, 5 insertions, 2 deletions

diff --git a/libarchive_fe/passphrase.c b/libarchive_fe/passphrase.c
index c9eaba64..1eae0b88 100644
--- a/libarchive_fe/passphrase.c
+++ b/libarchive_fe/passphrase.c
@@ -142,12 +142,11 @@ readpassphrase(const char *prompt, char *buf, size_t bufsiz, int flags)
 #  define _POSIX_VDISABLE       VDISABLE
 #endif
 
-static volatile sig_atomic_t signo[SIGRTMAX];
+static volatile sig_atomic_t *signo;
 
 static void
 handler(int s)
 {
-
 	signo[s] = 1;
 }
 
@@ -167,6 +166,10 @@ readpassphrase(const char *prompt, char *buf, size_t bufsiz, int flags)
 		return(NULL);
 	}
 
+	if (signo == NULL) {
+		signo = calloc(SIGRTMAX, sizeof(sig_atomic_t));
+	}
+
 restart:
 	for (i = 0; i < SIGRTMAX; i++)
 		signo[i] = 0;