diff options
author | murray <murray@FreeBSD.org> | 2001-09-22 18:10:56 +0000 |
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committer | murray <murray@FreeBSD.org> | 2001-09-22 18:10:56 +0000 |
commit | 0e9a3ecd09c9a1c980b455127f6835e4e29b17d8 (patch) | |
tree | c80fbd758ae04d9625cfdb8e1669e7cd204fafb3 /usr.sbin/sysinstall/variable.c | |
parent | c71a3e927a672b31aa2ee41630d9101bfebc001e (diff) | |
download | FreeBSD-src-0e9a3ecd09c9a1c980b455127f6835e4e29b17d8.zip FreeBSD-src-0e9a3ecd09c9a1c980b455127f6835e4e29b17d8.tar.gz |
Add a function to free all of sysinstall's internal variables from the
environment. This fixes an annoying bug where hitting Ctrl-C and
telling sysinstall to 'restart' will do no such thing since many of
the options are still set and so you won't be prompted for them
again.
MFC after: 1 week
Diffstat (limited to 'usr.sbin/sysinstall/variable.c')
-rw-r--r-- | usr.sbin/sysinstall/variable.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/usr.sbin/sysinstall/variable.c b/usr.sbin/sysinstall/variable.c index ee56279..2def090 100644 --- a/usr.sbin/sysinstall/variable.c +++ b/usr.sbin/sysinstall/variable.c @@ -171,8 +171,8 @@ variable_get_value(char *var, char *prompt, int dirty) return cp; } -/* Check if value passed in data (in the form "variable=value") is equal to value of - variable stored in env */ +/* Check if value passed in data (in the form "variable=value") is + equal to value of variable stored in env */ int variable_check(char *data) { @@ -227,3 +227,33 @@ dump_variables(dialogMenuItem *unused) return DITEM_SUCCESS; } + +/* Free all of the variables, useful to really start over as when the + user selects "restart" from the interrupt menu. */ +void +free_variables(void) +{ + Variable *vp; + + /* Free the variables from our list, if we have one.. */ + if (!VarHead) + return; + else if (!VarHead->next) { + unsetenv(VarHead->name); + safe_free(VarHead->name); + safe_free(VarHead->value); + free(VarHead); + VarHead = NULL; + } + else { + for (vp = VarHead; vp; ) { + Variable *save = vp; + unsetenv(vp->name); + safe_free(vp->name); + safe_free(vp->value); + vp = vp->next; + safe_free(save); + } + VarHead = NULL; + } +} |