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now deals with timeout <= 0

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This commit is contained in:
Todd C. Miller
1996-07-08 13:55:43 +00:00
parent bf55f57bd4
commit a27847e1ba
1 changed files with 29 additions and 17 deletions
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46
tgetpass.c
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@@ -165,29 +165,41 @@ char * tgetpass(prompt, timeout)
(void) rewind(output);
}
/* setup for select(2) */
FD_ZERO(&readfds);
FD_SET(fileno(input), &readfds);
/*
* Timeout of <= 0 means no timeout
*/
if (timeout > 0) {
/* setup for select(2) */
FD_ZERO(&readfds);
FD_SET(fileno(input), &readfds);
/* set timeout for select */
tv.tv_sec = timeout;
tv.tv_usec = 0;
/* set timeout for select */
tv.tv_sec = timeout;
tv.tv_usec = 0;
/* how many file descriptors may we have? */
/* how many file descriptors may we have? */
#ifdef HAVE_SYSCONF
n = sysconf(_SC_OPEN_MAX);
n = sysconf(_SC_OPEN_MAX);
#else
n = getdtablesize();
n = getdtablesize();
#endif /* HAVE_SYSCONF */
/*
* get password or return empty string if nothing to read by timeout
*/
buf[0] = '\0';
if (select(n, &readfds, 0, 0, &tv) > 0 && fgets(buf, sizeof(buf), input)) {
n = strlen(buf);
if (buf[n - 1] == '\n')
buf[n - 1] = '\0';
/*
* get password or return empty string if nothing to read by timeout
*/
buf[0] = '\0';
if (select(n, &readfds, 0, 0, &tv) > 0 && fgets(buf, sizeof(buf), input)) {
n = strlen(buf);
if (buf[n - 1] == '\n')
buf[n - 1] = '\0';
}
} else {
buf[0] = '\0';
if (fgets(buf, sizeof(buf), input)) {
n = strlen(buf);
if (buf[n - 1] == '\n')
buf[n - 1] = '\0';
}
}
/* turn on echo */