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tty: add support for 'passenv' flag to /bin/login

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This change makes it possible tell the bundled/built-in getty to call
/bin/login with the '-p' flag, to preserve any environment set in the
Finit .conf files.

Issue #286

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit is contained in:
Joachim Wiberg committed 2022-06-13 21:20:16 +02:00
1 parent 2a98b2f055
commit d904ec1602
2 files changed
+20 -3
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src/tty.c
+11 -1
View File
@@ -154,6 +154,7 @@ char *tty_atcon(void)
int tty_parse_args(char *cmd, struct tty *tty)
{
char *dev = NULL;
int passenv = 0;
size_t i;
do {
@@ -165,6 +166,8 @@ int tty_parse_args(char *cmd, struct tty *tty)
tty->nologin = 1;
else if (!strcmp(cmd, "notty"))
tty->notty = 1; /* for board bringup */
else if (!strcmp(cmd, "passenv"))
passenv = 1;
else if (!strcmp(cmd, "rescue"))
tty->rescue = 1; /* for rescue shells */
else if (whichp(cmd)) /* in $PATH? */
@@ -228,8 +231,15 @@ int tty_parse_args(char *cmd, struct tty *tty)
tty->dev, tty->baud ?: "0", tty->term ?: "N/A");
/* Built-in getty now comes as standalone program */
if (!tty->cmd)
if (!tty->cmd) {
if (passenv && tty->num < NELEMS(tty->args)) {
for (i = tty->num; i > 0; i--)
tty->args[i] = tty->args[i - 1];
tty->args[0] = "-p";
tty->num++;
}
tty->cmd = _PATH_GETTY;
}
return 0;
}