==7886== For more details, rerun with: -v
==7886==
==7886== Invalid write of size 1
==7886==    at 0x401E52B: strcpy (mac_replace_strmem.c:269)
==7886==    by 0x804876C: main (huff-e.c:75)
==7886==  Address 0x415B034 is 0 bytes after a block of size 12 alloc'd
==7886==    at 0x401C422: malloc (vg_replace_malloc.c:149)
==7886==    by 0x804866C: main (huff-e.c:54)
==7886==
==7886== Invalid read of size 1
==7886==    at 0x804878A: main (huff-e.c:76)
==7886==  Address 0x415B034 is 0 bytes after a block of size 12 alloc'd
==7886==    at 0x401C422: malloc (vg_replace_malloc.c:149)
==7886==    by 0x804866C: main (huff-e.c:54)
==7886==
==7886== Invalid write of size 4
==7886==    at 0x8048796: main (huff-e.c:76)
==7886==  Address 0x415B034 is 0 bytes after a block of size 12 alloc'd
==7886==    at 0x401C422: malloc (vg_replace_malloc.c:149)
==7886==    by 0x804866C: main (huff-e.c:54)
==7886==
==7886== Invalid write of size 2
==7886==    at 0x804879C: main (huff-e.c:76)
==7886==  Address 0x415B038 is 4 bytes after a block of size 12 alloc'd
==7886==    at 0x401C422: malloc (vg_replace_malloc.c:149)
==7886==    by 0x804866C: main (huff-e.c:54)
==7886==
==7886== Syscall param open(filename) points to unaddressable byte(s)
==7886==    at 0x4000772: (within /lib/ld-2.3.6.so)
==7886==    by 0x407F128: (within /lib/tls/i686/cmov/libc-2.3.6.so)
==7886==    by 0x407F17C: fopen (in /lib/tls/i686/cmov/libc-2.3.6.so)
==7886==    by 0x804895E: writeHeader (huff-e.c:170)
==7886==    by 0x8048818: main (huff-e.c:102)
==7886==  Address 0x415B034 is 0 bytes after a block of size 12 alloc'd
==7886==    at 0x401C422: malloc (vg_replace_malloc.c:149)
==7886==    by 0x804866C: main (huff-e.c:54)
==7886==
==7886== ERROR SUMMARY: 5 errors from 5 contexts (suppressed: 11 from 1)
==7886== malloc/free: in use at exit: 0 bytes in 0 blocks.
==7886== malloc/free: 2 allocs, 2 frees, 364 bytes allocated.
==7886== For counts of detected errors, rerun with: -v
==7886== No malloc'd blocks -- no leaks are possible.