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| author | Sami Kerola <kerolasa@iki.fi> | 2013-04-13 20:54:40 +0100 |
|---|---|---|
| committer | Karel Zak <kzak@redhat.com> | 2013-04-26 13:26:06 +0200 |
| commit | 1aba8336c094e26d189ce792606ecbac246209ce (patch) | |
| tree | 30119881da5b6a342fa692fef31d0ac3596d0fdc | |
| parent | f99b58b3841888703ef41802256b913abd4e3e89 (diff) | |
| download | util-linux-1aba8336c094e26d189ce792606ecbac246209ce.tar.gz | |
agetty: check writing to a file was successful
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
| -rw-r--r-- | term-utils/agetty.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/term-utils/agetty.c b/term-utils/agetty.c index a23cf6dc..dd52f700 100644 --- a/term-utils/agetty.c +++ b/term-utils/agetty.c @@ -235,6 +235,9 @@ static void login_options_to_argv(char *argv[], int *argc, char *str, char *user static char *fakehost; #ifdef DEBUGGING +#ifndef +# define DEBUG_OUTPUT "/dev/ttyp0" +#endif #define debug(s) do { fprintf(dbf,s); fflush(dbf); } while (0) FILE *dbf; #else @@ -270,7 +273,7 @@ int main(int argc, char **argv) sigaction(SIGINT, &sa, &sa_int); #ifdef DEBUGGING - dbf = fopen("/dev/ttyp0", "w"); + dbf = fopen(DEBUG_OUTPUT, "w"); for (int i = 1; i < argc; i++) debug(argv[i]); #endif /* DEBUGGING */ @@ -420,6 +423,12 @@ int main(int argc, char **argv) options.tty); } +#ifdef DEBUGGING + fprintf(dbf, "read %c\n", ch); + if (close_stream(dbf) != 0) + log_err("write failed: %s", DEBUG_OUTPUT); +#endif + /* Let the login program take care of password validation. */ execv(options.login, login_argv); log_err(_("%s: can't exec %s: %m"), options.tty, login_argv[0]); |