fetch and pull: learn --progress

diff --git a/usage.c b/usage.c
index c488f3afcd6d612e786c13c86241b2a01eb97a2a..79856a2b9f5bc4603252cb10b471a0815416a617 100644 (file)
--- a/usage.c
+++ b/usage.c
@@ -7,14 +7,14 @@
 
 static void report(const char *prefix, const char *err, va_list params)
 {
-       char msg[1024];
+       char msg[4096];
        vsnprintf(msg, sizeof(msg), err, params);
        fprintf(stderr, "%s%s\n", prefix, msg);
 }
 
-static NORETURN void usage_builtin(const char *err)
+static NORETURN void usage_builtin(const char *err, va_list params)
 {
-       fprintf(stderr, "usage: %s\n", err);
+       report("usage: ", err, params);
        exit(129);
 }
 
@@ -36,7 +36,7 @@ static void warn_builtin(const char *warn, va_list params)
 
 /* If we are in a dlopen()ed .so write to a global variable would segfault
  * (ugh), so keep things static. */
-static NORETURN_PTR void (*usage_routine)(const char *err) = usage_builtin;
+static NORETURN_PTR void (*usage_routine)(const char *err, va_list params) = usage_builtin;
 static NORETURN_PTR void (*die_routine)(const char *err, va_list params) = die_builtin;
 static void (*error_routine)(const char *err, va_list params) = error_builtin;
 static void (*warn_routine)(const char *err, va_list params) = warn_builtin;
@@ -46,9 +46,18 @@ void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list param
        die_routine = routine;
 }
 
+void usagef(const char *err, ...)
+{
+       va_list params;
+
+       va_start(params, err);
+       usage_routine(err, params);
+       va_end(params);
+}
+
 void usage(const char *err)
 {
-       usage_routine(err);
+       usagef("%s", err);
 }
 
 void die(const char *err, ...)