Apply post-1.19.2 patches, bump version to 1.19.31_19_3

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

10 files changed, 56 insertions, 20 deletions

diff --git a/Makefile b/Makefile
index 2cac36c00..9648c9c20 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 1
 PATCHLEVEL = 19
-SUBLEVEL = 2
+SUBLEVEL = 3
 EXTRAVERSION =
 NAME = Unnamed
 
diff --git a/applets/applet_tables.c b/applets/applet_tables.c
index 3859d7326..a47574737 100644
--- a/applets/applet_tables.c
+++ b/applets/applet_tables.c
@@ -80,8 +80,15 @@ int main(int argc, char **argv)
 
 	printf("#define NUM_APPLETS %u\n", NUM_APPLETS);
 	if (NUM_APPLETS == 1) {
+		char *dash_to_underscore, *p;
 		printf("#define SINGLE_APPLET_STR \"%s\"\n", applets[0].name);
-		printf("#define SINGLE_APPLET_MAIN %s_main\n", applets[0].name);
+		/* Example: "ether-wake" -> "ether_wake" */
+		p = dash_to_underscore = strdup(applets[0].name);
+		p--;
+		while (*++p)
+			if (*p == '-')
+				*p = '_';
+		printf("#define SINGLE_APPLET_MAIN %s_main\n", dash_to_underscore);
 	}
 	printf("\n");
 
diff --git a/coreutils/tail.c b/coreutils/tail.c
index 454c25936..43cecbd97 100644
--- a/coreutils/tail.c
+++ b/coreutils/tail.c
@@ -203,7 +203,7 @@ int tail_main(int argc, char **argv)
 		int fd = fds[i];
 
 		if (ENABLE_FEATURE_FANCY_TAIL && fd < 0)
-			continue; /* may happen with -E */
+			continue; /* may happen with -F */
 
 		if (nfiles > header_threshhold) {
 			tail_xprint_header(fmt, argv[i]);
@@ -252,14 +252,14 @@ int tail_main(int argc, char **argv)
 		 * Used only by +N code ("start from Nth", 1-based): */
 		seen = 1;
 		newlines_seen = 0;
-		while ((nread = tail_read(fd, buf, tailbufsize-taillen)) > 0) {
+		while ((nread = tail_read(fd, buf, tailbufsize - taillen)) > 0) {
 			if (G.from_top) {
 				int nwrite = nread;
 				if (seen < count) {
 					/* We need to skip a few more bytes/lines */
 					if (COUNT_BYTES) {
 						nwrite -= (count - seen);
-						seen = count;
+						seen += nread;
 					} else {
 						char *s = buf;
 						do {
diff --git a/include/platform.h b/include/platform.h
index 826a4c497..aa1bc331b 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -433,7 +433,7 @@ typedef unsigned smalluint;
 # undef HAVE_STPCPY
 #endif
 
-#if defined(ANDROID)
+#if defined(ANDROID) || defined(__ANDROID__)
 # undef HAVE_DPRINTF
 # undef HAVE_GETLINE
 # undef HAVE_STPCPY
diff --git a/loginutils/chpasswd.c b/loginutils/chpasswd.c
index 2262b792a..b7df57e5d 100644
--- a/loginutils/chpasswd.c
+++ b/loginutils/chpasswd.c
@@ -33,9 +33,8 @@ static const char chpasswd_longopts[] ALIGN1 =
 int chpasswd_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int chpasswd_main(int argc UNUSED_PARAM, char **argv)
 {
-	char *name, *pass;
-	char salt[sizeof("$N$XXXXXXXX")];
-	int opt, rc;
+	char *name;
+	int opt;
 
 	if (getuid() != 0)
 		bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
@@ -45,6 +44,10 @@ int chpasswd_main(int argc UNUSED_PARAM, char **argv)
 	opt = getopt32(argv, "em");
 
 	while ((name = xmalloc_fgetline(stdin)) != NULL) {
+		char *free_me;
+		char *pass;
+		int rc;
+
 		pass = strchr(name, ':');
 		if (!pass)
 			bb_error_msg_and_die("missing new password");
@@ -52,7 +55,10 @@ int chpasswd_main(int argc UNUSED_PARAM, char **argv)
 
 		xuname2uid(name); /* dies if there is no such user */
 
+		free_me = NULL;
 		if (!(opt & OPT_ENC)) {
+			char salt[sizeof("$N$XXXXXXXX")];
+
 			crypt_make_salt(salt, 1);
 			if (opt & OPT_MD5) {
 				salt[0] = '$';
@@ -60,7 +66,7 @@ int chpasswd_main(int argc UNUSED_PARAM, char **argv)
 				salt[2] = '$';
 				crypt_make_salt(salt + 3, 4);
 			}
-			pass = pw_encrypt(pass, salt, 0);
+			free_me = pass = pw_encrypt(pass, salt, 0);
 		}
 
 		/* This is rather complex: if user is not found in /etc/shadow,
@@ -81,8 +87,7 @@ int chpasswd_main(int argc UNUSED_PARAM, char **argv)
 			bb_info_msg("Password for '%s' changed", name);
 		logmode = LOGMODE_STDIO;
 		free(name);
-		if (!(opt & OPT_ENC))
-			free(pass);
+		free(free_me);
 	}
 	return EXIT_SUCCESS;
 }
diff --git a/miscutils/crond.c b/miscutils/crond.c
index 014016fb6..a0b73c774 100644
--- a/miscutils/crond.c
+++ b/miscutils/crond.c
@@ -861,7 +861,8 @@ int crond_main(int argc UNUSED_PARAM, char **argv)
 
 	/* "-b after -f is ignored", and so on for every pair a-b */
 	opt_complementary = "f-b:b-f:S-L:L-S" IF_FEATURE_CROND_D(":d-l")
-			":l+:d+"; /* -l and -d have numeric param */
+			/* -l and -d have numeric param */
+			":l+" IF_FEATURE_CROND_D(":d+");
 	opts = getopt32(argv, "l:L:fbSc:" IF_FEATURE_CROND_D("d:"),
 			&G.log_level, &G.log_filename, &G.crontab_dir_name
 			IF_FEATURE_CROND_D(,&G.log_level));
diff --git a/networking/inetd.c b/networking/inetd.c
index 873fd9528..05ad8c792 100644
--- a/networking/inetd.c
+++ b/networking/inetd.c
@@ -1278,6 +1278,7 @@ int inetd_main(int argc UNUSED_PARAM, char **argv)
 							sep->se_count = 0;
 							rearm_alarm(); /* will revive it in RETRYTIME sec */
 							restore_sigmask(&omask);
+							maybe_close(new_udp_fd);
 							maybe_close(accepted_fd);
 							continue; /* -> check next fd in fd set */
 						}
@@ -1298,17 +1299,18 @@ int inetd_main(int argc UNUSED_PARAM, char **argv)
 					bb_perror_msg("vfork"+1);
 					sleep(1);
 					restore_sigmask(&omask);
+					maybe_close(new_udp_fd);
 					maybe_close(accepted_fd);
 					continue; /* -> check next fd in fd set */
 				}
 				if (pid == 0)
 					pid--; /* -1: "we did fork and we are child" */
 			}
-			/* if pid == 0 here, we never forked */
+			/* if pid == 0 here, we didn't fork */
 
 			if (pid > 0) { /* parent */
 				if (sep->se_wait) {
-					/* tcp wait: we passed listening socket to child,
+					/* wait: we passed socket to child,
 					 * will wait for child to terminate */
 					sep->se_wait = pid;
 					remove_fd_from_set(sep->se_fd);
@@ -1345,9 +1347,13 @@ int inetd_main(int argc UNUSED_PARAM, char **argv)
 			setsid();
 			/* "nowait" udp */
 			if (new_udp_fd >= 0) {
-				len_and_sockaddr *lsa = xzalloc_lsa(sep->se_family);
+				len_and_sockaddr *lsa;
+				int r;
+
+				close(new_udp_fd);
+				lsa = xzalloc_lsa(sep->se_family);
 				/* peek at the packet and remember peer addr */
-				int r = recvfrom(ctrl, NULL, 0, MSG_PEEK|MSG_DONTWAIT,
+				r = recvfrom(ctrl, NULL, 0, MSG_PEEK|MSG_DONTWAIT,
 					&lsa->u.sa, &lsa->len);
 				if (r < 0)
 					goto do_exit1;
diff --git a/networking/tftp.c b/networking/tftp.c
index 17485a527..043b879af 100644
--- a/networking/tftp.c
+++ b/networking/tftp.c
@@ -813,7 +813,8 @@ int tftpd_main(int argc UNUSED_PARAM, char **argv)
 		goto err;
 	}
 	mode = local_file + strlen(local_file) + 1;
-	if (mode >= block_buf + result || strcmp(mode, "octet") != 0) {
+	/* RFC 1350 says mode string is case independent */
+	if (mode >= block_buf + result || strcasecmp(mode, "octet") != 0) {
 		goto err;
 	}
 # if ENABLE_FEATURE_TFTP_BLOCKSIZE
diff --git a/sysklogd/syslogd.c b/sysklogd/syslogd.c
index 2f0ca6ac5..fc380d9f9 100644
--- a/sysklogd/syslogd.c
+++ b/sysklogd/syslogd.c
@@ -278,7 +278,7 @@ static void parse_syslogdcfg(const char *file)
 	parser_t *parser;
 
 	parser = config_open2(file ? file : "/etc/syslog.conf",
-				file ? xfopen_for_read : fopen_or_warn_stdin);
+				file ? xfopen_for_read : fopen_for_read);
 	if (!parser)
 		/* didn't find default /etc/syslog.conf */
 		/* proceed as if we built busybox without config support */
@@ -594,6 +594,14 @@ static void log_locally(time_t now, char *msg, logFile_t *log_file)
 			}
 			/* newFile == "f.0" now */
 			rename(log_file->path, newFile);
+			/* Incredibly, if F and F.0 are hardlinks, POSIX
+			 * _demands_ that rename returns 0 but does not
+			 * remove F!!!
+			 * (hardlinked F/F.0 pair was observed after
+			 * power failure during rename()).
+			 * Ensure old file is gone:
+			 */
+			unlink(log_file->path);
 #ifdef SYSLOGD_WRLOCK
 			fl.l_type = F_UNLCK;
 			fcntl(log_file->fd, F_SETLKW, &fl);
@@ -678,7 +686,7 @@ static void timestamp_and_log(int pri, char *msg, int len)
 	if (LOG_PRI(pri) < G.logLevel) {
 #if ENABLE_FEATURE_IPC_SYSLOG
 		if ((option_mask32 & OPT_circularlog) && G.shbuf) {
-			log_to_shmem(msg);
+			log_to_shmem(G.printbuf);
 			return;
 		}
 #endif
diff --git a/testsuite/tail.tests b/testsuite/tail.tests
index 7140da262..305a83b15 100755
--- a/testsuite/tail.tests
+++ b/testsuite/tail.tests
@@ -14,4 +14,12 @@ testing "tail: +N with N > file length" \
 	"0\n" \
 	"" "qw"
 
+testing "tail: -c +N with largish N" \
+	"
+	dd if=/dev/zero bs=16k count=1 2>/dev/null | tail -c +8200 | wc -c;
+	dd if=/dev/zero bs=16k count=1 2>/dev/null | tail -c +8208 | wc -c;
+	" \
+	"8185\n8177\n" \
+	"" ""
+
 exit $FAILCOUNT