Apply post-1.20.1 patches, bump version to 1.20.21_20_2

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

8 files changed, 71 insertions, 41 deletions

diff --git a/Makefile b/Makefile
index 1de03983f..fccde4a6a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 1
 PATCHLEVEL = 20
-SUBLEVEL = 1
+SUBLEVEL = 2
 EXTRAVERSION =
 NAME = Unnamed
 
diff --git a/archival/libarchive/get_header_tar.c b/archival/libarchive/get_header_tar.c
index 80a709144..b168653d8 100644
--- a/archival/libarchive/get_header_tar.c
+++ b/archival/libarchive/get_header_tar.c
@@ -84,7 +84,7 @@ static unsigned long long getOctal(char *str, int len)
 		first >>= 1; /* now 7th bit = 6th bit */
 		v = first;   /* sign-extend 8 bits to 64 */
 		while (--len != 0)
-			v = (v << 8) + (unsigned char) *str++;
+			v = (v << 8) + (uint8_t) *++str;
 	}
 	return v;
 }
diff --git a/include/bb_e2fs_defs.h b/include/bb_e2fs_defs.h
index 7974497ca..3edff8377 100644
--- a/include/bb_e2fs_defs.h
+++ b/include/bb_e2fs_defs.h
@@ -422,9 +422,27 @@ struct ext2_super_block {
 	uint16_t	s_reserved_word_pad;
 	uint32_t	s_default_mount_opts;
 	uint32_t	s_first_meta_bg;	/* First metablock group */
+	/* ext3 additions */
 	uint32_t	s_mkfs_time;		/* When the filesystem was created */
 	uint32_t	s_jnl_blocks[17];	/* Backup of the journal inode */
-	uint32_t	s_reserved[172];	/* Padding to the end of the block */
+	/* 64bit support valid if EXT4_FEATURE_COMPAT_64BIT */
+/*150*/	uint32_t	s_blocks_count_hi;	/* Blocks count */
+	uint32_t	s_r_blocks_count_hi;	/* Reserved blocks count */
+	uint32_t	s_free_blocks_count_hi;	/* Free blocks count */
+	uint16_t	s_min_extra_isize;	/* All inodes have at least # bytes */
+	uint16_t	s_want_extra_isize; 	/* New inodes should reserve # bytes */
+	uint32_t	s_flags;		/* Miscellaneous flags */
+	uint16_t	s_raid_stride;		/* RAID stride */
+	uint16_t	s_mmp_interval;		/* # seconds to wait in MMP checking */
+	uint64_t	s_mmp_block;		/* Block for multi-mount protection */
+	uint32_t	s_raid_stripe_width;	/* blocks on all data disks (N*stride)*/
+	uint8_t		s_log_groups_per_flex;	/* FLEX_BG group size */
+	uint8_t		s_reserved_char_pad2;
+	uint16_t	s_reserved_pad;
+	uint32_t	s_reserved[162];	/* Padding to the end of the block */
+};
+struct BUG_ext2_super_block {
+        char bug[sizeof(struct ext2_super_block) == 1024 ? 1 : -1];
 };
 
 /*
diff --git a/miscutils/man.c b/miscutils/man.c
index 611466349..e380fdaba 100644
--- a/miscutils/man.c
+++ b/miscutils/man.c
@@ -129,27 +129,21 @@ static int show_manpage(const char *pager, char *man_filename, int man, int leve
 #endif
 #if ENABLE_FEATURE_SEAMLESS_XZ
 	strcpy(ext, "xz");
-	if (run_pipe(pager, man_filename, man, level))
+	if (run_pipe(pager, filename_with_zext, man, level))
 		return 1;
 #endif
 #if ENABLE_FEATURE_SEAMLESS_BZ2
 	strcpy(ext, "bz2");
-	if (run_pipe(pager, man_filename, man, level))
+	if (run_pipe(pager, filename_with_zext, man, level))
 		return 1;
 #endif
 #if ENABLE_FEATURE_SEAMLESS_GZ
 	strcpy(ext, "gz");
-	if (run_pipe(pager, man_filename, man, level))
+	if (run_pipe(pager, filename_with_zext, man, level))
 		return 1;
 #endif
 
-#if SEAMLESS_COMPRESSION
-	ext[-1] = '\0';
-#endif
-	if (run_pipe(pager, man_filename, man, level))
-		return 1;
-
-	return 0;
+	return run_pipe(pager, man_filename, man, level);
 }
 
 int man_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index dfda20670..9b3498696 100644
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -140,8 +140,6 @@ static const char keywords_up_down[] ALIGN1 =
 	"up\0"
 	"down\0"
 	"pre-up\0"
-	"pre-down\0"
-	"post-up\0"
 	"post-down\0"
 ;
 
@@ -895,6 +893,11 @@ static struct interfaces_file_t *read_interfaces(const char *filename)
 				if (rest_of_line[0] == '\0')
 					bb_error_msg_and_die("option with empty value \"%s\"", buf);
 
+				if (strcmp(first_word, "post-up") == 0)
+					first_word += 5; /* "up" */
+				else if (strcmp(first_word, "pre-down") == 0)
+					first_word += 4; /* "down" */
+
 				/* If not one of "up", "down",... words... */
 				if (index_in_strings(keywords_up_down, first_word) < 0) {
 					int i;
@@ -963,7 +966,7 @@ static char *setlocalenv(const char *format, const char *name, const char *value
 	return result;
 }
 
-static void set_environ(struct interface_defn_t *iface, const char *mode)
+static void set_environ(struct interface_defn_t *iface, const char *mode, const char *opt)
 {
 	int i;
 	char **pp;
@@ -976,7 +979,7 @@ static void set_environ(struct interface_defn_t *iface, const char *mode)
 	}
 
 	/* note: last element will stay NULL: */
-	G.my_environ = xzalloc(sizeof(char *) * (iface->n_options + 6));
+	G.my_environ = xzalloc(sizeof(char *) * (iface->n_options + 7));
 	pp = G.my_environ;
 
 	for (i = 0; i < iface->n_options; i++) {
@@ -990,6 +993,7 @@ static void set_environ(struct interface_defn_t *iface, const char *mode)
 	*pp++ = setlocalenv("%s=%s", "ADDRFAM", iface->address_family->name);
 	*pp++ = setlocalenv("%s=%s", "METHOD", iface->method->name);
 	*pp++ = setlocalenv("%s=%s", "MODE", mode);
+	*pp++ = setlocalenv("%s=%s", "PHASE", opt);
 	if (G.startup_PATH)
 		*pp++ = setlocalenv("%s=%s", "PATH", G.startup_PATH);
 }
@@ -1044,21 +1048,21 @@ static int check(char *str)
 static int iface_up(struct interface_defn_t *iface)
 {
 	if (!iface->method->up(iface, check)) return -1;
-	set_environ(iface, "start");
+	set_environ(iface, "start", "pre-up");
 	if (!execute_all(iface, "pre-up")) return 0;
 	if (!iface->method->up(iface, doit)) return 0;
+	set_environ(iface, "start", "post-up");
 	if (!execute_all(iface, "up")) return 0;
-	if (!execute_all(iface, "post-up")) return 0;
 	return 1;
 }
 
 static int iface_down(struct interface_defn_t *iface)
 {
 	if (!iface->method->down(iface,check)) return -1;
-	set_environ(iface, "stop");
-	if (!execute_all(iface, "pre-down")) return 0;
+	set_environ(iface, "stop", "pre-down");
 	if (!execute_all(iface, "down")) return 0;
 	if (!iface->method->down(iface, doit)) return 0;
+	set_environ(iface, "stop", "post-down");
 	if (!execute_all(iface, "post-down")) return 0;
 	return 1;
 }
diff --git a/procps/ps.c b/procps/ps.c
index 4727b218b..3a5af7c18 100644
--- a/procps/ps.c
+++ b/procps/ps.c
@@ -69,6 +69,31 @@
 /* Absolute maximum on output line length */
 enum { MAX_WIDTH = 2*1024 };
 
+#if ENABLE_FEATURE_PS_TIME || ENABLE_FEATURE_PS_LONG
+static long get_uptime(void)
+{
+#ifdef __linux__
+	struct sysinfo info;
+	if (sysinfo(&info) < 0)
+		return 0;
+	return info.uptime;
+#elif 1
+	char buf[64];
+	long uptime;
+	if (open_read_close("/proc/uptime", buf, sizeof(buf)) <= 0)
+		bb_perror_msg_and_die("can't read %s", "/proc/uptime");
+	buf[sizeof(buf)-1] = '\0';
+	sscanf(buf, "%l", &uptime);
+	return uptime;
+#else
+	struct timespec ts;
+	if (clock_gettime(CLOCK_MONOTONIC, &ts) < 0)
+		return 0;
+	return ts.tv_sec;
+#endif
+}
+#endif
+
 #if ENABLE_DESKTOP
 
 #include <sys/times.h> /* for times() */
@@ -197,8 +222,6 @@ static inline unsigned get_HZ_by_waiting(void)
 
 static unsigned get_kernel_HZ(void)
 {
-	//char buf[64];
-	struct sysinfo info;
 
 	if (kernel_HZ)
 		return kernel_HZ;
@@ -208,12 +231,7 @@ static unsigned get_kernel_HZ(void)
 	if (kernel_HZ == (unsigned)-1)
 		kernel_HZ = get_HZ_by_waiting();
 
-	//if (open_read_close("/proc/uptime", buf, sizeof(buf)) <= 0)
-	//	bb_perror_msg_and_die("can't read %s", "/proc/uptime");
-	//buf[sizeof(buf)-1] = '\0';
-	///sscanf(buf, "%llu", &seconds_since_boot);
-	sysinfo(&info);
-	seconds_since_boot = info.uptime;
+	seconds_since_boot = get_uptime();
 
 	return kernel_HZ;
 }
@@ -635,7 +653,7 @@ int ps_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
 	};
 #if ENABLE_FEATURE_PS_LONG
 	time_t now = now;
-	struct sysinfo info;
+	long uptime;
 #endif
 	int opts = 0;
 	/* If we support any options, parse argv */
@@ -695,7 +713,7 @@ int ps_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
 		puts("S   UID   PID  PPID   VSZ   RSS TTY   STIME TIME     CMD");
 #if ENABLE_FEATURE_PS_LONG
 		now = time(NULL);
-		sysinfo(&info);
+		uptime = get_uptime();
 #endif
 	}
 	else {
@@ -727,7 +745,7 @@ int ps_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
 				char tty[2 * sizeof(int)*3 + 2];
 				char *endp;
 				unsigned sut = (p->stime + p->utime) / 100;
-				unsigned elapsed = info.uptime - (p->start_time / 100);
+				unsigned elapsed = uptime - (p->start_time / 100);
 				time_t start = now - elapsed;
 				struct tm *tm = localtime(&start);
 
diff --git a/shell/ash.c b/shell/ash.c
index d197fa19a..d025da40c 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -6846,8 +6846,7 @@ evalvar(char *p, int flags, struct strlist *var_str_list)
 		patloc = expdest - (char *)stackblock();
 		if (NULL == subevalvar(p, /* varname: */ NULL, patloc, subtype,
 				startloc, varflags,
-//TODO: | EXP_REDIR too? All other such places do it too
-				/* quotes: */ flags & (EXP_FULL | EXP_CASE),
+				/* quotes: */ flags & (EXP_FULL | EXP_CASE | EXP_REDIR),
 				var_str_list)
 		) {
 			int amount = expdest - (
diff --git a/util-linux/mkfs_ext2.c b/util-linux/mkfs_ext2.c
index 69b25c946..3258d7eee 100644
--- a/util-linux/mkfs_ext2.c
+++ b/util-linux/mkfs_ext2.c
@@ -53,11 +53,6 @@
 #define ENABLE_FEATURE_MKFS_EXT2_RESERVED_GDT 0
 #define ENABLE_FEATURE_MKFS_EXT2_DIR_INDEX    1
 
-// from e2fsprogs
-#define s_reserved_gdt_blocks s_padding1
-#define s_mkfs_time           s_reserved[0]
-#define s_flags               s_reserved[22]
-
 #define EXT2_HASH_HALF_MD4       1
 #define EXT2_FLAGS_SIGNED_HASH   0x0001
 #define EXT2_FLAGS_UNSIGNED_HASH 0x0002
@@ -482,8 +477,10 @@ int mkfs_ext2_main(int argc UNUSED_PARAM, char **argv)
 	STORE_LE(sb->s_magic, EXT2_SUPER_MAGIC);
 	STORE_LE(sb->s_inode_size, inodesize);
 	// set "Required extra isize" and "Desired extra isize" fields to 28
-	if (inodesize != sizeof(*inode))
-		STORE_LE(sb->s_reserved[21], 0x001C001C);
+	if (inodesize != sizeof(*inode)) {
+		STORE_LE(sb->s_min_extra_isize, 0x001c);
+		STORE_LE(sb->s_want_extra_isize, 0x001c);
+	}
 	STORE_LE(sb->s_first_ino, EXT2_GOOD_OLD_FIRST_INO);
 	STORE_LE(sb->s_log_block_size, blocksize_log2 - EXT2_MIN_BLOCK_LOG_SIZE);
 	STORE_LE(sb->s_log_frag_size, blocksize_log2 - EXT2_MIN_BLOCK_LOG_SIZE);