[GRASS-dev] [GRASS GIS] #2643: d.vect png with icon=basic/circle and long paths segfaults

[GRASS GIS]

#2643: d.vect png with icon=basic/circle and long paths segfaults
----------------------+-----------------------------------------------------
 Reporter:  pertusus  |       Owner:  grass-dev@…              
     Type:  defect    |      Status:  new                      
 Priority:  major     |   Milestone:  7.0.1                    
Component:  Display   |     Version:  svn-releasebranch70      
 Keywords:            |    Platform:  Linux                    
      Cpu:  x86-64    |  
----------------------+-----------------------------------------------------
 In some cases, d.vect segfaults.  I can only reproduce a segfault when I
 am in a directory with a long name (and the location name needs to be long
 too, though I surmise that it is the same issue).

 Here is the backtrace
 {{{
 gdb --args d.vect map=selection_demand icon=basic/circle
 Reading symbols from /localdata/local/grass-7.0.0svn/bin/d.vect...done.
 (gdb) run
 Starting program: /localdata/local/grass-7.0.0svn/bin/d.vect
 map=selection_demand icon=basic/circle
 [Thread debugging using libthread_db enabled]

 Program received signal SIGSEGV, Segmentation fault.
 0x00007ffff6cd2bef in store_xy (x=750.5, y=-nan(0x8000000000000))
     at draw_line.c:22
 22          png.grid[yi * png.width + xi] = png.current_color;

 (gdb) bt
 #0  0x00007ffff6cd2bef in store_xy (x=750.5, y=-nan(0x8000000000000)) at
 draw_line.c:22
 #1  0x00007ffff6cd2fe9 in draw_line (x1=<value optimized out>, y1=<value
 optimized out>,
     x2=<value optimized out>, y2=<value optimized out>) at draw_line.c:60
 #2  png_draw_line (x1=<value optimized out>, y1=<value optimized out>,
     x2=<value optimized out>, y2=<value optimized out>) at draw_line.c:73
 #3  0x00007ffff68c8908 in path_stroke (p=0x7ffff6ed76a0,
     line=0x7ffff6cd2c00 <png_draw_line>) at path.c:106
 #4  0x00007ffff7dfa42e in symbol (Symb=0x8359b0, x0=-1474999.7945148,
     y0=3456000.0026465799, fill_color=0x835920, line_color=0x835900,
     string_color=0x835900) at symbol.c:93
 #5  0x0000000000406014 in draw_line (Map=0x7fffffffd1b0, type=87,
 Clist=0x630400,
     color=0x7fffffffdcb0, fcolor=0x7fffffffdca0, chcat=0,
     symbol_name=0x6289d0 "basic/circle", size=5, sqrt_flag=0, id_flag=0,
     cats_color_flag=0, default_width=0, width_scale=1, zcolors=0x0,
 cvarr_rgb=0x0,
     colors=0x0, cvarr_width=0x7fffffffafb0, nrec_width=0,
 cvarr_size=0x7fffffffaf90,
     nrec_size=0, cvarr_rot=0x7fffffffaf70, nrec_rot=0) at lines.c:350
 #6  display_lines (Map=0x7fffffffd1b0, type=87, Clist=0x630400,
 color=0x7fffffffdcb0,
     fcolor=0x7fffffffdca0, chcat=0, symbol_name=0x6289d0 "basic/circle",
 size=5,
     sqrt_flag=0, id_flag=0, cats_color_flag=0, default_width=0,
 width_scale=1,
     zcolors=0x0, cvarr_rgb=0x0, colors=0x0, cvarr_width=0x7fffffffafb0,
 nrec_width=0,
     cvarr_size=0x7fffffffaf90, nrec_size=0, cvarr_rot=0x7fffffffaf70,
 nrec_rot=0)
     at lines.c:150
 #7  0x0000000000408716 in display_shape (Map=0x7fffffffd1b0, type=87,
 Clist=0x630400,
     window=0x7fffffffdba0, bcolor=0x7fffffffdcb0, fcolor=0x7fffffffdca0,
 chcat=0,
     icon=0x6289d0 "basic/circle", size=5, size_column=0x0, sqrt_flag=0,
 rot_column=0x0,
     id_flag=0, cats_colors_flag=0, rgb_column=0x0, default_width=0,
 width_column=0x0,
     width_scale=1, z_style=0x0) at shape.c:207
 #8  0x00000000004073ed in main (argc=0, argv=0x0) at main.c:408
 }}}

 I attach a reproducer. You may want to change GRASS_VERSION in
 reproduce.sh and code in grass_common_setup.sh.

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/2643>
GRASS GIS <http://grass.osgeo.org>