From e9a910b33c7837b4b868e3abda18eb4810df7f02 Mon Sep 17 00:00:00 2001 From: Leah Rowe Date: Sat, 4 Oct 2025 09:14:33 +0100 Subject: config/git: import suckless sbase i currently use the output of sha512sum in several places of xbmk, which is a bit unreliable in case output changes. other cases where i use util outputs in variables are probably reliable, because i'm using mostly posix utilities in those. to mitigate this, i now import suckless sbase, which has a reasonable sha512sum implementation. *every* binary it builds is being placed in build.list, because i'll probably start using more of them. for example, i may start modifying the "date" implementation, adding the GNU-specific options that i need as mentioned on init.sh i'm importing it in util/ because the sha512sum util is needed for verifying project sources, so if sbase itself is a "project source", that means we can into a chicken and egg bootstrapping problem. this is sbase at revision: 055cc1ae1b3a13c3d8f25af0a4a3316590efcd48 Signed-off-by: Leah Rowe --- util/sbase/tee.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 util/sbase/tee.c (limited to 'util/sbase/tee.c') diff --git a/util/sbase/tee.c b/util/sbase/tee.c new file mode 100644 index 00000000..eac106ca --- /dev/null +++ b/util/sbase/tee.c @@ -0,0 +1,60 @@ +/* See LICENSE file for copyright and license details. */ +#include +#include +#include + +#include "util.h" + +static void +usage(void) +{ + eprintf("usage: %s [-ai] [file ...]\n", argv0); +} + +int +main(int argc, char *argv[]) +{ + int *fds = NULL; + size_t i, nfds; + ssize_t n; + int ret = 0, aflag = O_TRUNC, iflag = 0; + char buf[BUFSIZ]; + + ARGBEGIN { + case 'a': + aflag = O_APPEND; + break; + case 'i': + iflag = 1; + break; + default: + usage(); + } ARGEND + + if (iflag && signal(SIGINT, SIG_IGN) == SIG_ERR) + eprintf("signal:"); + nfds = argc + 1; + fds = ecalloc(nfds, sizeof(*fds)); + + for (i = 0; i < argc; i++) { + if ((fds[i] = open(argv[i], O_WRONLY|O_CREAT|aflag, 0666)) < 0) { + weprintf("open %s:", argv[i]); + ret = 1; + } + } + fds[i] = 1; + + while ((n = read(0, buf, sizeof(buf))) > 0) { + for (i = 0; i < nfds; i++) { + if (fds[i] >= 0 && writeall(fds[i], buf, n) < 0) { + weprintf("write %s:", (i != argc) ? argv[i] : ""); + fds[i] = -1; + ret = 1; + } + } + } + if (n < 0) + eprintf("read :"); + + return ret; +} -- cgit v1.2.1