more of -Wall fixes from Cristian Ionescu-Idbohrn.

Some are fixing real bugs.

function                                             old     new   delta
syslogd_main                                         938     958     +20
get_signum                                           136     143      +7
obj_load                                             777     782      +5
recv_from_to                                         210     214      +4
get_next_block                                      1795    1799      +4
display_topmem_process_list                         1117    1121      +4
logread_main                                         484     487      +3
buffer_fill_and_print                                 73      76      +3
kill_main                                            687     689      +2
ll_remember_index                                    240     241      +1
do_stats                                             452     453      +1
if_readconf                                          166     165      -1
display_process_list                                1192    1191      -1
run_applet_and_exit                                  507     505      -2
print_signames                                        33      31      -2
parse_one_line                                      1092    1090      -2
find_out_spec                                         57      55      -2
add_ksymoops_symbols                                 421     419      -2
ash_main                                            1407    1402      -5
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 11/8 up/down: 54/-17)            Total: 37 bytes

4 files changed, 11 insertions, 11 deletions

diff --git a/archival/libunarchive/archive_xread_all_eof.c b/archival/libunarchive/archive_xread_all_eof.c
index 7e082ab1d..c93dfa282 100644
--- a/archival/libunarchive/archive_xread_all_eof.c
+++ b/archival/libunarchive/archive_xread_all_eof.c
@@ -12,7 +12,7 @@ ssize_t archive_xread_all_eof(archive_handle_t *archive_handle,
         ssize_t size;
 
         size = full_read(archive_handle->src_fd, buf, count);
-        if (size != 0 && size != count) {
+        if (size != 0 && size != (ssize_t)count) {
                 bb_error_msg_and_die("short read: %u of %u",
                                 (unsigned)size, (unsigned)count);
         }
diff --git a/archival/libunarchive/decompress_bunzip2.c b/archival/libunarchive/decompress_bunzip2.c
index c1b12732c..f74fdf1ad 100644
--- a/archival/libunarchive/decompress_bunzip2.c
+++ b/archival/libunarchive/decompress_bunzip2.c
@@ -103,7 +103,7 @@ static unsigned get_bits(bunzip_data *bd, int bits_wanted)
         /* If we need to get more data from the byte buffer, do so.  (Loop getting
            one byte at a time to enforce endianness and avoid unaligned access.) */
 
-        while (bd->inbufBitCount < bits_wanted) {
+        while ((int)(bd->inbufBitCount) < bits_wanted) {
 
                 /* If we need to read more data from file into byte buffer, do so */
 
@@ -172,7 +172,7 @@ static int get_next_block(bunzip_data *bd)
 
         if (get_bits(bd, 1)) return RETVAL_OBSOLETE_INPUT;
         origPtr = get_bits(bd, 24);
-        if (origPtr > dbufSize) return RETVAL_DATA_ERROR;
+        if ((int)origPtr > dbufSize) return RETVAL_DATA_ERROR;
 
         /* mapping table: if some byte values are never used (encoding things
            like ascii text), the compression code removes the gaps to have fewer
@@ -368,7 +368,7 @@ static int get_next_block(bunzip_data *bd)
                    j = get_bits(bd, hufGroup->maxLen);
                  */
 
-                while (bd->inbufBitCount < hufGroup->maxLen) {
+                while ((int)(bd->inbufBitCount) < hufGroup->maxLen) {
                         if (bd->inbufPos == bd->inbufCount) {
                                 j = get_bits(bd, hufGroup->maxLen);
                                 goto got_huff_bits;
@@ -505,7 +505,7 @@ static int get_next_block(bunzip_data *bd)
            it doesn't qualify as a run (hence writeRunCountdown=5). */
 
         if (dbufCount) {
-                if (origPtr >= dbufCount) return RETVAL_DATA_ERROR;
+                if ((int)origPtr >= dbufCount) return RETVAL_DATA_ERROR;
                 bd->writePos = dbuf[origPtr];
             bd->writeCurrent = (unsigned char)(bd->writePos & 0xff);
                 bd->writePos >>= 8;
diff --git a/archival/libunarchive/decompress_unlzma.c b/archival/libunarchive/decompress_unlzma.c
index 5fb7eaee0..c32040075 100644
--- a/archival/libunarchive/decompress_unlzma.c
+++ b/archival/libunarchive/decompress_unlzma.c
@@ -329,7 +329,7 @@ unpack_lzma_stream(int src_fd, int dst_fd)
                         if (buffer_pos == header.dict_size) {
                                 buffer_pos = 0;
                                 global_pos += header.dict_size;
-                                if (full_write(dst_fd, buffer, header.dict_size) != header.dict_size)
+                                if (full_write(dst_fd, buffer, header.dict_size) != (ssize_t)header.dict_size)
                                         goto bad;
                                 USE_DESKTOP(total_written += header.dict_size;)
                         }
@@ -480,7 +480,7 @@ unpack_lzma_stream(int src_fd, int dst_fd)
                                 if (buffer_pos == header.dict_size) {
                                         buffer_pos = 0;
                                         global_pos += header.dict_size;
-                                        if (full_write(dst_fd, buffer, header.dict_size) != header.dict_size)
+                                        if (full_write(dst_fd, buffer, header.dict_size) != (ssize_t)header.dict_size)
                                                 goto bad;
                                         USE_DESKTOP(total_written += header.dict_size;)
                                 }
@@ -489,7 +489,7 @@ unpack_lzma_stream(int src_fd, int dst_fd)
                 }
         }
 
-        if (full_write(dst_fd, buffer, buffer_pos) != buffer_pos) {
+        if (full_write(dst_fd, buffer, buffer_pos) != (ssize_t)buffer_pos) {
  bad:
                 rc_free(rc);
                 return -1;
diff --git a/archival/libunarchive/decompress_unzip.c b/archival/libunarchive/decompress_unzip.c
index a764fbc98..9036fabf2 100644
--- a/archival/libunarchive/decompress_unzip.c
+++ b/archival/libunarchive/decompress_unzip.c
@@ -922,7 +922,7 @@ static int inflate_block(STATE_PARAM smallint *e)
 /* Two callsites, both in inflate_get_next_window */
 static void calculate_gunzip_crc(STATE_PARAM_ONLY)
 {
-        int n;
+        unsigned n;
         for (n = 0; n < gunzip_outbuf_count; n++) {
                 gunzip_crc = gunzip_crc_table[((int) gunzip_crc ^ (gunzip_window[n])) & 0xff] ^ (gunzip_crc >> 8);
         }
@@ -1003,7 +1003,7 @@ inflate_unzip_internal(STATE_PARAM int in, int out)
         while (1) {
                 int r = inflate_get_next_window(PASS_STATE_ONLY);
                 nwrote = full_write(out, gunzip_window, gunzip_outbuf_count);
-                if (nwrote != gunzip_outbuf_count) {
+                if (nwrote != (ssize_t)gunzip_outbuf_count) {
                         bb_perror_msg("write");
                         n = -1;
                         goto ret;
@@ -1064,7 +1064,7 @@ static int top_up(STATE_PARAM unsigned n)
 {
         int count = bytebuffer_size - bytebuffer_offset;
 
-        if (count < n) {
+        if (count < (int)n) {
                 memmove(bytebuffer, &bytebuffer[bytebuffer_offset], count);
                 bytebuffer_offset = 0;
                 bytebuffer_size = full_read(gunzip_src_fd, &bytebuffer[count], bytebuffer_max - count);