Merge branch 'jk/vreport-sanitize'

diff --git a/usage.c b/usage.c
index 17f52c1b5ce631eed1cdf3447d80e7223a2e6f01..ad6d2910fb58e2f27a52646bd79a0442e689517f 100644 (file)
--- a/usage.c
+++ b/usage.c
@@ -7,21 +7,19 @@
 #include "cache.h"
 
 static FILE *error_handle;
-static int tweaked_error_buffering;
 
 void vreportf(const char *prefix, const char *err, va_list params)
 {
+       char msg[4096];
        FILE *fh = error_handle ? error_handle : stderr;
+       char *p;
 
-       fflush(fh);
-       if (!tweaked_error_buffering) {
-               setvbuf(fh, NULL, _IOLBF, 0);
-               tweaked_error_buffering = 1;
+       vsnprintf(msg, sizeof(msg), err, params);
+       for (p = msg; *p; p++) {
+               if (iscntrl(*p) && *p != '\t' && *p != '\n')
+                       *p = '?';
        }
-
-       fputs(prefix, fh);
-       vfprintf(fh, err, params);
-       fputc('\n', fh);
+       fprintf(fh, "%s%s\n", prefix, msg);
 }
 
 static NORETURN void usage_builtin(const char *err, va_list params)
@@ -93,7 +91,6 @@ void set_die_is_recursing_routine(int (*routine)(void))
 void set_error_handle(FILE *fh)
 {
        error_handle = fh;
-       tweaked_error_buffering = 0;
 }
 
 void NORETURN usagef(const char *err, ...)