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68 lines
1.9 KiB
Diff
68 lines
1.9 KiB
Diff
Patch-Source: https://src.fedoraproject.org/rpms/at/blob/f36/f/at-3.2.2-shell.patch
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From d72ffaead4a4410fe7b91570d290baac991a69eb Mon Sep 17 00:00:00 2001
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From: Jan Staněk <jstanek@redhat.com>
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Date: Mar 31 2022 10:13:56 +0000
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Subject: shell: add preceding newline to delimiter
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at uses heredoc redirection to pass the script being executed
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into user's defined $SHELL. However, the heredoc delimiter
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is directly concatenated to the script's contents;
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if these contents do not end with a newline,
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the delimiter is attached to the last line of the script.
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This patch adds a single newline to be always emmited before the
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delimiter. This guarantees the delimiter is always on it's own
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line. In case a newline is already present at the end of the original
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script, this simply adds a single empty line; I cannot think of any
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complication that could result from that.
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Resolves: rhbz#2070450
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diff -ur b/at.c a/at.c
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--- b/at.c
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+++ a/at.c
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@@ -62,11 +62,8 @@
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#include <stdlib.h>
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#include <string.h>
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-#ifdef TM_IN_SYS_TIME
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#include <sys/time.h>
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-#else
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#include <time.h>
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-#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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@@ -245,6 +242,12 @@
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int kill_errno;
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int rc;
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int mailsize = 128;
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+ struct timeval tv;
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+ struct timezone tz;
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+ long int i;
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+
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+ gettimeofday(&tv, &tz);
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+ srandom(getpid()+tv.tv_usec);
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/* Install the signal handler for SIGINT; terminate after removing the
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* spool file if necessary
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@@ -492,6 +495,9 @@
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fprintf(fp, " || {\n\t echo 'Execution directory "
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"inaccessible' >&2\n\t exit 1\n}\n");
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+ i = random();
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+ fprintf(fp, "${SHELL:-/bin/sh} << \'marcinDELIMITER%08lx\'\n", i);
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+
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istty = isatty(fileno(stdin));
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if (istty) {
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runtime = localtime(&runtimer);
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@@ -512,7 +518,7 @@
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if (istty) {
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fprintf(stderr, "<EOT>\n");
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}
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- fprintf(fp, "\n");
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+ fprintf(fp, "\nmarcinDELIMITER%08lx\n", i);
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if (ferror(fp))
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panic("Output error");
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fflush(fp);
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