config: use getc_unlocked when reading from file

diff --git a/strbuf.c b/strbuf.c
index 4d3144308feaf3fdc541b582ed589962c6c459c1..af2bad4b561a0972e50b8dd9e04121ed09151896 100644 (file)
--- a/strbuf.c
+++ b/strbuf.c
@@ -204,6 +204,13 @@ void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len)
        strbuf_setlen(sb, sb->len + len);
 }
 
+void strbuf_addchars(struct strbuf *sb, int c, size_t n)
+{
+       strbuf_grow(sb, n);
+       memset(sb->buf + sb->len, c, n);
+       strbuf_setlen(sb, sb->len + n);
+}
+
 void strbuf_addf(struct strbuf *sb, const char *fmt, ...)
 {
        va_list ap;
@@ -222,7 +229,8 @@ static void add_lines(struct strbuf *out,
                const char *next = memchr(buf, '\n', size);
                next = next ? (next + 1) : (buf + size);
 
-               prefix = (prefix2 && buf[0] == '\n') ? prefix2 : prefix1;
+               prefix = ((prefix2 && (buf[0] == '\n' || buf[0] == '\t'))
+                         ? prefix2 : prefix1);
                strbuf_addstr(out, prefix);
                strbuf_add(out, buf, next - buf);
                size -= next - buf;
@@ -435,12 +443,14 @@ int strbuf_getwholeline(struct strbuf *sb, FILE *fp, int term)
                return EOF;
 
        strbuf_reset(sb);
-       while ((ch = fgetc(fp)) != EOF) {
+       flockfile(fp);
+       while ((ch = getc_unlocked(fp)) != EOF) {
                strbuf_grow(sb, 1);
                sb->buf[sb->len++] = ch;
                if (ch == term)
                        break;
        }
+       funlockfile(fp);
        if (ch == EOF && sb->len == 0)
                return EOF;