fix slurp(), it needs to read size-1 for the trailing NUL

diff --git a/src/general.c b/src/general.c
index bf7afd1ec25b24c972a1db531a179e6a4f98a4ba..7ec80a84688446b8831edb30499de5bdf5f165d4 100644 (file)
--- a/src/general.c
+++ b/src/general.c
@@ -19,7 +19,8 @@ bool slurp(const char *filename, char *destination, int size) {
         if ((fd = open(filename, O_RDONLY)) == -1)
                 return false;
 
-        int n = read(fd, destination, size);
+        /* We need one byte for the trailing 0 byte */
+        int n = read(fd, destination, size-1);
         if (n != -1)
                 destination[n] = '\0';
         (void)close(fd);