diff options
Diffstat (limited to 'libexec/ftpd/ftpcmd.y')
| -rw-r--r-- | libexec/ftpd/ftpcmd.y | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libexec/ftpd/ftpcmd.y b/libexec/ftpd/ftpcmd.y index 3374439..84c028b 100644 --- a/libexec/ftpd/ftpcmd.y +++ b/libexec/ftpd/ftpcmd.y @@ -1169,6 +1169,7 @@ getline(char *s, int n, FILE *iop) { int c; register char *cs; + sigset_t sset, osset; cs = s; /* tmpline may contain saved command from urgent mode interruption */ @@ -1184,6 +1185,10 @@ getline(char *s, int n, FILE *iop) if (c == 0) tmpline[0] = '\0'; } + /* SIGURG would interrupt stdio if not blocked during the read loop */ + sigemptyset(&sset); + sigaddset(&sset, SIGURG); + sigprocmask(SIG_BLOCK, &sset, &osset); while ((c = getc(iop)) != EOF) { c &= 0377; if (c == IAC) { @@ -1216,6 +1221,7 @@ getline(char *s, int n, FILE *iop) break; } got_eof: + sigprocmask(SIG_SETMASK, &osset, NULL); if (c == EOF && cs == s) return (NULL); *cs++ = '\0'; |
