[hackers] [blind] Fix regression bug: the string "0" is an acceptable integer || Mattias Andrée

[git]

commit a1d27e57c214f3641b83b5e568d7b3c31c583ed3
Author:     Mattias Andrée <maand...@kth.se>
AuthorDate: Mon Dec 4 23:03:42 2017 +0100
Commit:     Mattias Andrée <maand...@kth.se>
CommitDate: Mon Dec 4 23:03:58 2017 +0100

    Fix regression bug: the string "0" is an acceptable integer
    
    Signed-off-by: Mattias Andrée <maand...@kth.se>

diff --git a/src/util.c b/src/util.c
index 1f0da6a..a8af373 100644
--- a/src/util.c
+++ b/src/util.c
@@ -37,7 +37,7 @@ tollu(const char *s, unsigned long long int min, unsigned 
long long int max, uns
                return -1;
        }
        if (!isdigit(s[*s == 'x' || *s == 'X' || *s == '#']) ||
-           (*s == '0' && !isdigit(s[1 + (*s == 'x' || *s == 'o' || *s == 
'b')]))) {
+           (*s == '0' && s[1] && !isdigit(s[1 + (*s == 'x' || *s == 'o' || *s 
== 'b')]))) {
                errno = EINVAL;
                return -1;
        }