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Author: Ole Streicher <olebole@debian.net>
Description: Fix overlappong buffers in sprintf
In sprintf, overlapping buffers lead to undefined behaviour.
This causes different results on Debian and Ubuntu.
--- a/imstar.c
+++ b/imstar.c
@@ -818,7 +818,7 @@
sprintf (headline, "%7.2f %7.2f %6.2f %d",
sx[i],sy[i],smag[i],sp[i]);
if (iswcs (wcs))
- sprintf (headline, "%s %s %s", headline, rastr, decstr);
+ sprintf (headline + strlen(headline), " %s %s", rastr, decstr);
if (wfile)
fprintf (fd, "%s\n", headline);
else
@@ -827,14 +827,14 @@
else {
sprintf (headline, "%3d %s %s %6.2f", i+1,rastr,decstr,smag[i]);
if (wcs->nxpix < 100.0 && wcs->nypix > 100.0)
- sprintf (headline, "%s %5.2f %5.2f %d",
- headline, sx[i],sy[i], sp[i]);
+ sprintf (headline + strlen(headline), " %5.2f %5.2f %d",
+ sx[i],sy[i], sp[i]);
else if (wcs->nxpix < 1000.0 && wcs->nypix < 1000.0)
- sprintf (headline, "%s %6.2f %6.2f %d",
- headline, sx[i],sy[i], sp[i]);
+ sprintf (headline + strlen(headline), " %6.2f %6.2f %d",
+ sx[i],sy[i], sp[i]);
else
- sprintf (headline, "%s %7.2f %7.2f %d",
- headline, sx[i],sy[i], sp[i]);
+ sprintf (headline + strlen(headline), " %7.2f %7.2f %d",
+ sx[i],sy[i], sp[i]);
if (wfile)
fprintf (fd, "%s\n", headline);
else
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