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| author | Luke T. Shumaker <lukeshu@lukeshu.com> | 2025-04-22 18:51:59 -0600 |
|---|---|---|
| committer | Luke T. Shumaker <lukeshu@lukeshu.com> | 2025-05-06 11:53:17 -0600 |
| commit | 24e5d0ec1219e2dbb4b9510ef20833092a2b3871 (patch) | |
| tree | 01bbcc34c6190fa1c35b2625e9ba1744b1447606 /lib9p/tests/test_server/main.c | |
| parent | f09b7435b3a5222597d27238226d23ec0cbd5bd2 (diff) | |
wip: Build with -Wconversionlukeshu/safe-conversion
I think this found a real bug in the dhcp packet parser.
I don't think anything called lib9p_str{,n}() values that could be big
enough, but their bounds-checking was broken.
Diffstat (limited to 'lib9p/tests/test_server/main.c')
| -rw-r--r-- | lib9p/tests/test_server/main.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib9p/tests/test_server/main.c b/lib9p/tests/test_server/main.c index d7819eb..8490d62 100644 --- a/lib9p/tests/test_server/main.c +++ b/lib9p/tests/test_server/main.c @@ -151,7 +151,11 @@ int main(int argc, char *argv[]) { if (argc != 3) error(2, 0, "usage: %s PORT_NUMBER LOGFILE", argv[0]); - globals.port = atoi(argv[1]); + int _port = atoi(argv[1]); + if (_port == 0 || _port > UINT16_MAX) + error(2, 0, "usage: %s PORT_NUMBER LOGFILE", argv[0]); + + globals.port = (uint16_t)_port; globals.logstream = fopen(argv[2], "w"); if (!globals.logstream) error(2, errno, "fopen"); |