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| author | Nick Mathewson <nickm@torproject.org> | 2012-03-30 10:34:05 -0400 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2012-03-30 10:34:05 -0400 |
| commit | 56e0959d2ab9cae45d39c5b9d72b1bb1b8ad03b7 (patch) | |
| tree | ac7c4cb7ece2df9fea2307f8690741c939e00559 | |
| parent | 88caa552cc3742189124c297e7cf65ac5e5ef332 (diff) | |
| download | tor-56e0959d2ab9cae45d39c5b9d72b1bb1b8ad03b7.tar.gz tor-56e0959d2ab9cae45d39c5b9d72b1bb1b8ad03b7.zip | |
Have tor_parse_*long functions check for negative bases
One of our unit tests checks that they behave correctly (giving an
error) when the base is negative. But there isn't a guarantee that
strtol and friends actually handle negative bases correctly.
Found by Coverity Scan; fix for CID 504.
| -rw-r--r-- | src/common/util.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/common/util.c b/src/common/util.c index 1807ee7adc..266368cc9d 100644 --- a/src/common/util.c +++ b/src/common/util.c @@ -906,6 +906,11 @@ tor_parse_long(const char *s, int base, long min, long max, char *endptr; long r; + if (base < 0) { + if (ok) + *ok = 0; + return 0; + } r = strtol(s, &endptr, base); CHECK_STRTOX_RESULT(); } @@ -918,6 +923,11 @@ tor_parse_ulong(const char *s, int base, unsigned long min, char *endptr; unsigned long r; + if (base < 0) { + if (ok) + *ok = 0; + return 0; + } r = strtoul(s, &endptr, base); CHECK_STRTOX_RESULT(); } @@ -942,6 +952,12 @@ tor_parse_uint64(const char *s, int base, uint64_t min, char *endptr; uint64_t r; + if (base < 0) { + if (ok) + *ok = 0; + return 0; + } + #ifdef HAVE_STRTOULL r = (uint64_t)strtoull(s, &endptr, base); #elif defined(_WIN32) |