apply: reject input that touches outside the working area

[git.git] / ident.c

diff --git a/ident.c b/ident.c
index 1c123e685fbfbfcd5289958adc54a6cd48351628..1d9b6e770d02d12f77b417e05aca5134eccf1c40 100644 (file)
--- a/ident.c
+++ b/ident.c
@@ -233,7 +233,21 @@ int split_ident_line(struct ident_split *split, const char *line, int len)
        if (!split->mail_end)
                return status;
 
-       for (cp = split->mail_end + 1; cp < line + len && isspace(*cp); cp++)
+       /*
+        * Look from the end-of-line to find the trailing ">" of the mail
+        * address, even though we should already know it as split->mail_end.
+        * This can help in cases of broken idents with an extra ">" somewhere
+        * in the email address.  Note that we are assuming the timestamp will
+        * never have a ">" in it.
+        *
+        * Note that we will always find some ">" before going off the front of
+        * the string, because will always hit the split->mail_end closing
+        * bracket.
+        */
+       for (cp = line + len - 1; *cp != '>'; cp--)
+               ;
+
+       for (cp = cp + 1; cp < line + len && isspace(*cp); cp++)
                ;
        if (line + len <= cp)
                goto person_only;
@@ -402,3 +416,32 @@ int git_ident_config(const char *var, const char *value, void *data)
 
        return 0;
 }
+
+static int buf_cmp(const char *a_begin, const char *a_end,
+                  const char *b_begin, const char *b_end)
+{
+       int a_len = a_end - a_begin;
+       int b_len = b_end - b_begin;
+       int min = a_len < b_len ? a_len : b_len;
+       int cmp;
+
+       cmp = memcmp(a_begin, b_begin, min);
+       if (cmp)
+               return cmp;
+
+       return a_len - b_len;
+}
+
+int ident_cmp(const struct ident_split *a,
+             const struct ident_split *b)
+{
+       int cmp;
+
+       cmp = buf_cmp(a->mail_begin, a->mail_end,
+                     b->mail_begin, b->mail_end);
+       if (cmp)
+               return cmp;
+
+       return buf_cmp(a->name_begin, a->name_end,
+                      b->name_begin, b->name_end);
+}