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| author | Chad MILLER <chad@mysql.com> | 2008-08-18 13:06:27 -0400 |
|---|---|---|
| committer | Chad MILLER <chad@mysql.com> | 2008-08-18 13:06:27 -0400 |
| commit | ace51b79f176cdcfc1070ec4a7924b7a70a0b9bf (patch) | |
| tree | 974ea42d7a283296a0e9adf806dd51492c0a99e5 /mysys/mf_pack.c | |
| parent | 21598ea0e6c9495aba817b0101488549e4e78bd3 (diff) | |
| download | mariadb-git-ace51b79f176cdcfc1070ec4a7924b7a70a0b9bf.tar.gz | |
Bug#30394: Empty HOME environment variable causes several utilities to crash
Tilde expansion could fail when it was to expand to an empty string (such as
when HOME is set to an empty string), especially on systems where size_t is
unsigned.
Diffstat (limited to 'mysys/mf_pack.c')
| -rw-r--r-- | mysys/mf_pack.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mysys/mf_pack.c b/mysys/mf_pack.c index 915c11ec51d..0157a65311a 100644 --- a/mysys/mf_pack.c +++ b/mysys/mf_pack.c @@ -343,7 +343,7 @@ uint unpack_dirname(my_string to, const char *from) length-=(uint) (suffix-buff)-1; if (length+(h_length= (uint) strlen(tilde_expansion)) <= FN_REFLEN) { - if (tilde_expansion[h_length-1] == FN_LIBCHAR) + if ((h_length > 0) && (tilde_expansion[h_length-1] == FN_LIBCHAR)) h_length--; if (buff+h_length < suffix) bmove(buff+h_length,suffix,length); |