(paste_serial): Save errno after input error,

to report proper errno value.
Based on a patch from Paul Eggert.

diff --git a/src/paste.c b/src/paste.c
index 5ddb16f..1f6a981 100644 (file)
--- a/src/paste.c
+++ b/src/paste.c
@@ -328,6 +328,7 @@ paste_serial (int nfiles, char **fnamptr)
 
   for (; nfiles; nfiles--, fnamptr++)
     {
+      int saved_errno;
       if (STREQ (*fnamptr, "-"))
        {
          have_read_stdin = 1;
@@ -347,6 +348,7 @@ paste_serial (int nfiles, char **fnamptr)
       delimptr = delims;       /* Set up for delimiter string. */
 
       charold = getc (fileptr);
+      saved_errno = errno;
       if (charold != EOF)
        {
          /* `charold' is set up.  Hit it!
@@ -371,6 +373,7 @@ paste_serial (int nfiles, char **fnamptr)
 
              charold = charnew;
            }
+         saved_errno = errno;
 
          /* Hit EOF.  Process that last character. */
          putc (charold, stdout);
@@ -381,7 +384,7 @@ paste_serial (int nfiles, char **fnamptr)
 
       if (ferror (fileptr))
        {
-         error (0, errno, "%s", *fnamptr);
+         error (0, saved_errno, "%s", *fnamptr);
          errors = 1;
        }
       if (fileptr == stdin)