diff options
author | Simon Tatham <anakin@pobox.com> | 2016-05-07 16:58:07 +0100 |
---|---|---|
committer | Matthew Vernon <matthew@debian.org> | 2016-05-21 19:03:35 +0100 |
commit | eb50973552a62e49274cfeeddf31245739c8f47e (patch) | |
tree | 3a9579994403c216d446836eb6fb3835a1e013fc | |
parent | 7331fbf2792a5ace5fab0ff6cff4390e05a82961 (diff) |
Add -f option, to fork after a successful locking.
This permits a chain of commands of the form 'xtrlock -f && suspend',
where 'suspend' is whatever CLI command suspends your particular
laptop environment, so that when you unsuspend you then have to unlock
the xtrlock.
Without this option, you have to run xtrlock in the background, and
then either include a bodgy sleep to try to avoid the suspend command
winning the race, or else find a way to test by some X-related means
that the locking has happened.
Signed-off-by: Simon Tatham <anakin@pobox.com>
-rw-r--r-- | xtrlock.c | 33 | ||||
-rw-r--r-- | xtrlock.man | 6 |
2 files changed, 31 insertions, 8 deletions
@@ -81,19 +81,27 @@ int main(int argc, char **argv){ Cursor cursor; Pixmap csr_source,csr_mask; XColor csr_fg, csr_bg, dummy, black; - int ret, screen, blank = 0; + int ret, screen, blank = 0, fork_after = 0; #ifdef SHADOW_PWD struct spwd *sp; #endif struct timeval tv; int tvt, gs; - if ((argc == 2) && (strcmp(argv[1], "-b") == 0)) { - blank = 1; - } else if (argc > 1) { - fprintf(stderr,"xtrlock (version %s); usage: xtrlock [-b]\n", - program_version); - exit(1); + while (argc > 1) { + if ((strcmp(argv[1], "-b") == 0)) { + blank = 1; + argc--; + argv++; + } else if ((strcmp(argv[1], "-f") == 0)) { + fork_after = 1; + argc--; + argv++; + } else { + fprintf(stderr,"xtrlock (version %s); usage: xtrlock [-b] [-f]\n", + program_version); + exit(1); + } } errno=0; pw= getpwuid(getuid()); @@ -208,6 +216,17 @@ int main(int argc, char **argv){ exit(1); } + if (fork_after) { + pid_t pid = fork(); + if (pid < 0) { + fprintf(stderr,"xtrlock (version %s): cannot fork: %s\n", + program_version, strerror(errno)); + exit(1); + } else if (pid > 0) { + exit(0); + } + } + for (;;) { XNextEvent(display,&ev); switch (ev.type) { diff --git a/xtrlock.man b/xtrlock.man index 7a869a6..e211bd5 100644 --- a/xtrlock.man +++ b/xtrlock.man @@ -2,7 +2,7 @@ .SH NAME xtrlock \- Lock X display until password supplied, leaving windows visible .SH SYNOPSIS -.B xtrlock [-b] +.B xtrlock [-b] [-f] .SH DESCRIPTION .B xtrlock locks the X server till the user enters their password at the keyboard. @@ -30,6 +30,10 @@ touching a key (Shift, for example) or the mouse. .TP \fB\-b\fR blank the screen as well as displaying the padlock +.TP +\fB\-f\fR +fork after locking is complete, and return success from the parent +process .SH X RESOURCES, CONFIGURATION None. .SH BUGS |