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>
49 lines
901 B
C
49 lines
901 B
C
/* See LICENSE file for copyright and license details. */
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <unistd.h>
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#include "util.h"
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static void
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usage(void)
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{
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eprintf("usage: %s cmd [arg ...]\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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int fd, savederrno;
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ARGBEGIN {
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default:
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usage();
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} ARGEND
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if (!argc)
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usage();
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if (signal(SIGHUP, SIG_IGN) == SIG_ERR)
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enprintf(127, "signal HUP:");
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if (isatty(STDOUT_FILENO)) {
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if ((fd = open("nohup.out", O_WRONLY | O_APPEND | O_CREAT, S_IRUSR | S_IWUSR)) < 0)
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enprintf(127, "open nohup.out:");
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if (dup2(fd, STDOUT_FILENO) < 0)
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enprintf(127, "dup2:");
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close(fd);
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}
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if (isatty(STDERR_FILENO) && dup2(STDOUT_FILENO, STDERR_FILENO) < 0)
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enprintf(127, "dup2:");
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execvp(argv[0], argv);
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savederrno = errno;
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weprintf("execvp %s:", argv[0]);
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_exit(126 + (savederrno == ENOENT));
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}
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