diff options
| author | Bernhard Übelacker <bernhardu@mailbox.org> | 2018-09-18 15:53:08 +0200 |
|---|---|---|
| committer | Gary E. Miller <gem@rellim.com> | 2018-10-02 15:09:27 -0700 |
| commit | a41bd6c329032492571049e5e2453976a55c8760 (patch) | |
| tree | 3285482747516052a6cb795d4f1863945e59abd2 /gpxlogger.c | |
| parent | f55f07151a4af607c6fcae4193e784d92da89f2e (diff) | |
| download | gpsd-a41bd6c329032492571049e5e2453976a55c8760.tar.gz | |
gpxlogger: Move buffer extension below the strftime call.
Bug-Debian: https://bugs.debian.org/909082
Last-Update: 2018-09-18
Signed-off-by: Gary E. Miller <gem@rellim.com>
Diffstat (limited to 'gpxlogger.c')
| -rw-r--r-- | gpxlogger.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gpxlogger.c b/gpxlogger.c index 0a99aee2..9bb60bf4 100644 --- a/gpxlogger.c +++ b/gpxlogger.c @@ -233,7 +233,7 @@ int main(int argc, char **argv) char *fname = NULL; time_t t; size_t s = 0; - size_t fnamesize = strlen(optarg); + size_t fnamesize = strlen(optarg) + 1; t = time(NULL); while (s == 0) { @@ -242,10 +242,14 @@ int main(int argc, char **argv) syslog(LOG_ERR, "realloc failed."); goto bailout; } else { - fnamesize += 1024; fname = newfname; } s = strftime(fname, fnamesize-1, optarg, localtime(&t)); + if (!s) { + /* expanded filename did not fit in string, try + * a bigger string */ + fnamesize += 1024; + } } fname[s] = '\0';; logfile = fopen(fname, "w"); |