mirror of
https://codeberg.org/libreboot/lbmk.git
synced 2026-03-26 05:49:03 +02:00
e9a910b33c
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 <leah@libreboot.org>
61 lines
1.0 KiB
C
61 lines
1.0 KiB
C
/* See LICENSE file for copyright and license details. */
|
|
#include <fcntl.h>
|
|
#include <signal.h>
|
|
#include <unistd.h>
|
|
|
|
#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] : "<stdout>");
|
|
fds[i] = -1;
|
|
ret = 1;
|
|
}
|
|
}
|
|
}
|
|
if (n < 0)
|
|
eprintf("read <stdin>:");
|
|
|
|
return ret;
|
|
}
|