Patch from Bernhard Fischer to make a bunch of symbols static

which were otherwise cluttering the global namespace.

30 files changed, 96 insertions, 91 deletions

diff --git a/archival/dpkg.c b/archival/dpkg.c
index d3b56e398..05ba43414 100644
--- a/archival/dpkg.c
+++ b/archival/dpkg.c
@@ -58,7 +58,7 @@
  * I estimate it should be at least 50% bigger than PACKAGE_HASH_PRIME,
  * as there a lot of duplicate version numbers */
 #define NAME_HASH_PRIME 16381
-char *name_hashtable[NAME_HASH_PRIME + 1];
+static char *name_hashtable[NAME_HASH_PRIME + 1];
 
 /* PACKAGE_HASH_PRIME, Maximum number of unique packages,
  * It must not be smaller than STATUS_HASH_PRIME,
@@ -82,7 +82,7 @@ typedef struct common_node_s {
         unsigned int num_of_edges:14;
         edge_t **edge;
 } common_node_t;
-common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
+static common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
 
 /* Currently it doesnt store packages that have state-status of not-installed
  * So it only really has to be the size of the maximum number of packages
@@ -92,7 +92,7 @@ typedef struct status_node_s {
         unsigned int package:14;        /* has to fit PACKAGE_HASH_PRIME */
         unsigned int status:14;         /* has to fit STATUS_HASH_PRIME */
 } status_node_t;
-status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
+static status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
 
 /* Even numbers are for 'extras', like ored dependencies or null */
 enum edge_type_e {
@@ -137,7 +137,7 @@ typedef struct deb_file_s {
 } deb_file_t;
 
 
-void make_hash(const char *key, unsigned int *start, unsigned int *decrement, const int hash_prime)
+static void make_hash(const char *key, unsigned int *start, unsigned int *decrement, const int hash_prime)
 {
         unsigned long int hash_num = key[0];
         int len = strlen(key);
@@ -157,7 +157,7 @@ void make_hash(const char *key, unsigned int *start, unsigned int *decrement, co
 }
 
 /* this adds the key to the hash table */
-int search_name_hashtable(const char *key)
+static int search_name_hashtable(const char *key)
 {
         unsigned int probe_address = 0;
         unsigned int probe_decrement = 0;
@@ -181,7 +181,7 @@ int search_name_hashtable(const char *key)
 /* this DOESNT add the key to the hashtable
  * TODO make it consistent with search_name_hashtable
  */
-unsigned int search_status_hashtable(const char *key)
+static unsigned int search_status_hashtable(const char *key)
 {
         unsigned int probe_address = 0;
         unsigned int probe_decrement = 0;
@@ -201,7 +201,7 @@ unsigned int search_status_hashtable(const char *key)
 }
 
 /* Need to rethink version comparison, maybe the official dpkg has something i can use ? */
-int version_compare_part(const char *version1, const char *version2)
+static int version_compare_part(const char *version1, const char *version2)
 {
         int upstream_len1 = 0;
         int upstream_len2 = 0;
@@ -268,7 +268,7 @@ cleanup_version_compare_part:
  * if ver1 = ver2 return 0,
  * if ver1 > ver2 return 1,
  */
-int version_compare(const unsigned int ver1, const unsigned int ver2)
+static int version_compare(const unsigned int ver1, const unsigned int ver2)
 {
         char *ch_ver1 = name_hashtable[ver1];
         char *ch_ver2 = name_hashtable[ver2];
@@ -330,7 +330,7 @@ int version_compare(const unsigned int ver1, const unsigned int ver2)
         return(version_compare_part(deb_ver1, deb_ver2));
 }
 
-int test_version(const unsigned int version1, const unsigned int version2, const unsigned int operator)
+static int test_version(const unsigned int version1, const unsigned int version2, const unsigned int operator)
 {
         const int version_result = version_compare(version1, version2);
         switch(operator) {
@@ -366,7 +366,7 @@ int test_version(const unsigned int version1, const unsigned int version2, const
 }
 
 
-int search_package_hashtable(const unsigned int name, const unsigned int version, const unsigned int operator)
+static int search_package_hashtable(const unsigned int name, const unsigned int version, const unsigned int operator)
 {
         unsigned int probe_address = 0;
         unsigned int probe_decrement = 0;
@@ -405,7 +405,7 @@ int search_package_hashtable(const unsigned int name, const unsigned int version
  * FIXME: I don't think this is very efficient, but I thought I'd keep
  * it simple for now until it proves to be a problem.
  */
-int search_for_provides(int needle, int start_at) {
+static int search_for_provides(int needle, int start_at) {
         int i, j;
         common_node_t *p;
         for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
@@ -421,7 +421,7 @@ int search_for_provides(int needle, int start_at) {
 /*
  * Add an edge to a node
  */
-void add_edge_to_node(common_node_t *node, edge_t *edge)
+static void add_edge_to_node(common_node_t *node, edge_t *edge)
 {
         node->num_of_edges++;
         node->edge = xrealloc(node->edge, sizeof(edge_t) * (node->num_of_edges + 1));
@@ -438,7 +438,7 @@ void add_edge_to_node(common_node_t *node, edge_t *edge)
  * field contains the number of EDGE nodes which follow as part of
  * this alternative.
  */
-void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned int edge_type)
+static void add_split_dependencies(common_node_t *parent_node, const char *whole_line, unsigned int edge_type)
 {
         char *line = bb_xstrdup(whole_line);
         char *line2;
@@ -537,7 +537,7 @@ void add_split_dependencies(common_node_t *parent_node, const char *whole_line,
         return;
 }
 
-void free_package(common_node_t *node)
+static void free_package(common_node_t *node)
 {
         unsigned short i;
         if (node) {
@@ -550,7 +550,7 @@ void free_package(common_node_t *node)
         }
 }
 
-unsigned int fill_package_struct(char *control_buffer)
+static unsigned int fill_package_struct(char *control_buffer)
 {
         common_node_t *new_node = (common_node_t *) xcalloc(1, sizeof(common_node_t));
         const char *field_names[] = { "Package", "Version", "Pre-Depends", "Depends",
@@ -624,7 +624,7 @@ fill_package_struct_cleanup:
 }
 
 /* if num = 1, it returns the want status, 2 returns flag, 3 returns status */
-unsigned int get_status(const unsigned int status_node, const int num)
+static unsigned int get_status(const unsigned int status_node, const int num)
 {
         char *status_string = name_hashtable[status_hashtable[status_node]->status];
         char *state_sub_string;
@@ -646,7 +646,7 @@ unsigned int get_status(const unsigned int status_node, const int num)
         return(state_sub_num);
 }
 
-void set_status(const unsigned int status_node_num, const char *new_value, const int position)
+static void set_status(const unsigned int status_node_num, const char *new_value, const int position)
 {
         const unsigned int new_value_len = strlen(new_value);
         const unsigned int new_value_num = search_name_hashtable(new_value);
@@ -682,7 +682,7 @@ void set_status(const unsigned int status_node_num, const char *new_value, const
         return;
 }
 
-const char *describe_status(int status_num) {
+static const char *describe_status(int status_num) {
         int status_want, status_state ;
         if ( status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0 )
                 return "is not installed or flagged to be installed\n";
@@ -707,7 +707,7 @@ const char *describe_status(int status_num) {
 }
 
 
-void index_status_file(const char *filename)
+static void index_status_file(const char *filename)
 {
         FILE *status_file;
         char *control_buffer;
@@ -812,7 +812,7 @@ char *get_depends_field(common_node_t *package, const int depends_type)
 }
 #endif
 
-void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
+static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
 {
         char *name;
         char *value;
@@ -830,7 +830,7 @@ void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
 }
 
 /* This could do with a cleanup */
-void write_status_file(deb_file_t **deb_file)
+static void write_status_file(deb_file_t **deb_file)
 {
         FILE *old_status_file = bb_xfopen("/var/lib/dpkg/status", "r");
         FILE *new_status_file = bb_xfopen("/var/lib/dpkg/status.udeb", "w");
@@ -978,7 +978,7 @@ void write_status_file(deb_file_t **deb_file)
  * which a regular depends can be satisfied by a package which we want
  * to install.
  */
-int package_satisfies_dependency(int package, int depend_type)
+static int package_satisfies_dependency(int package, int depend_type)
 {
         int status_num = search_status_hashtable(name_hashtable[package_hashtable[package]->name]);
 
@@ -995,7 +995,7 @@ int package_satisfies_dependency(int package, int depend_type)
         return 0;
 }
 
-int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
+static int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
 {
         int *conflicts = NULL;
         int conflicts_num = 0;
@@ -1204,7 +1204,7 @@ int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
         return(TRUE);
 }
 
-char **create_list(const char *filename)
+static char **create_list(const char *filename)
 {
         FILE *list_stream;
         char **file_list = NULL;
@@ -1233,7 +1233,7 @@ char **create_list(const char *filename)
 }
 
 /* maybe i should try and hook this into remove_file.c somehow */
-int remove_file_array(char **remove_names, char **exclude_names)
+static int remove_file_array(char **remove_names, char **exclude_names)
 {
         struct stat path_stat;
         int match_flag;
@@ -1271,7 +1271,7 @@ int remove_file_array(char **remove_names, char **exclude_names)
         return(remove_flag);
 }
 
-int run_package_script(const char *package_name, const char *script_type)
+static int run_package_script(const char *package_name, const char *script_type)
 {
         struct stat path_stat;
         char *script_path;
@@ -1290,10 +1290,10 @@ int run_package_script(const char *package_name, const char *script_type)
         return(result);
 }
 
-const char *all_control_files[] = {"preinst", "postinst", "prerm", "postrm",
+static const char *all_control_files[] = {"preinst", "postinst", "prerm", "postrm",
         "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
 
-char **all_control_list(const char *package_name)
+static char **all_control_list(const char *package_name)
 {
         unsigned short i = 0;
         char **remove_files;
@@ -1310,7 +1310,7 @@ char **all_control_list(const char *package_name)
         return(remove_files);
 }
 
-void free_array(char **array)
+static void free_array(char **array)
 {
 
         if (array) {
@@ -1364,7 +1364,7 @@ static void list_packages(void)
     }
 }
 
-void remove_package(const unsigned int package_num, int noisy)
+static void remove_package(const unsigned int package_num, int noisy)
 {
         const char *package_name = name_hashtable[package_hashtable[package_num]->name];
         const char *package_version = name_hashtable[package_hashtable[package_num]->version];
@@ -1418,7 +1418,7 @@ void remove_package(const unsigned int package_num, int noisy)
         set_status(status_num, "config-files", 3);
 }
 
-void purge_package(const unsigned int package_num)
+static void purge_package(const unsigned int package_num)
 {
         const char *package_name = name_hashtable[package_hashtable[package_num]->name];
         const char *package_version = name_hashtable[package_hashtable[package_num]->version];
@@ -1614,7 +1614,7 @@ static void unpack_package(deb_file_t *deb_file)
         free(info_prefix);
 }
 
-void configure_package(deb_file_t *deb_file)
+static void configure_package(deb_file_t *deb_file)
 {
         const char *package_name = name_hashtable[package_hashtable[deb_file->package]->name];
         const char *package_version = name_hashtable[package_hashtable[deb_file->package]->version];
diff --git a/archival/libunarchive/check_header_gzip.c b/archival/libunarchive/check_header_gzip.c
index 13832c240..9e065c4fd 100644
--- a/archival/libunarchive/check_header_gzip.c
+++ b/archival/libunarchive/check_header_gzip.c
@@ -1,6 +1,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include "libbb.h"
+#include "unarchive.h" /* for external decl of check_header_gzip */
 
 extern void check_header_gzip(int src_fd)
 {
diff --git a/archival/libunarchive/decompress_uncompress.c b/archival/libunarchive/decompress_uncompress.c
index e39872cbe..a3fcf64e2 100644
--- a/archival/libunarchive/decompress_uncompress.c
+++ b/archival/libunarchive/decompress_uncompress.c
@@ -65,23 +65,23 @@
 #define MAXCODE(n)      (1L << (n))
 
 /* Block compress mode -C compatible with 2.0 */
-int block_mode = BLOCK_MODE;
+static int block_mode = BLOCK_MODE;
 
 /* user settable max # bits/code */
-int maxbits = BITS;
+static int maxbits = BITS;
 
 /* Exitcode of compress (-1 no file compressed) */
-int exit_code = -1;
+static int exit_code = -1;
 
 /* Input buffer */
-unsigned char inbuf[IBUFSIZ + 64];
+static unsigned char inbuf[IBUFSIZ + 64];
 
 /* Output buffer */
-unsigned char outbuf[OBUFSIZ + 2048];
+static unsigned char outbuf[OBUFSIZ + 2048];
 
 
-long int htab[HSIZE];
-unsigned short codetab[HSIZE];
+static long int htab[HSIZE];
+static unsigned short codetab[HSIZE];
 
 #define htabof(i)                               htab[i]
 #define codetabof(i)                    codetab[i]
diff --git a/archival/rpm2cpio.c b/archival/rpm2cpio.c
index 5314e5300..8316d2242 100644
--- a/archival/rpm2cpio.c
+++ b/archival/rpm2cpio.c
@@ -48,7 +48,7 @@ struct rpm_header {
         uint32_t size; /* Size of store (4 bytes) */
 };
 
-void skip_header(int rpm_fd)
+static void skip_header(int rpm_fd)
 {
         struct rpm_header header;
 
diff --git a/coreutils/md5_sha1_sum.c b/coreutils/md5_sha1_sum.c
index bd1c9fc29..189a90778 100644
--- a/coreutils/md5_sha1_sum.c
+++ b/coreutils/md5_sha1_sum.c
@@ -80,7 +80,7 @@ static uint8_t *hash_file(const char *filename, uint8_t hash_algo)
 }
 
 /* This could become a common function for md5 as well, by using md5_stream */
-extern int hash_files(int argc, char **argv, const uint8_t hash_algo)
+static int hash_files(int argc, char **argv, const uint8_t hash_algo)
 {
         int return_value = EXIT_SUCCESS;
         uint8_t *hash_value;
diff --git a/coreutils/sort.c b/coreutils/sort.c
index c701b5e4f..73505e365 100644
--- a/coreutils/sort.c
+++ b/coreutils/sort.c
@@ -31,7 +31,7 @@
 #include <unistd.h>
 #include "busybox.h"
 
-int global_flags;
+static int global_flags;
 
 /*
         sort [-m][-o output][-bdfinru][-t char][-k keydef]... [file...]
@@ -57,9 +57,9 @@ int global_flags;
 
 
 #ifdef CONFIG_SORT_BIG
-char key_separator;
+static char key_separator;
 
-struct sort_key
+static struct sort_key
 {
         struct sort_key *next_key;      /* linked list */
         unsigned short range[4];        /* start word, start char, end word, end char */
diff --git a/editors/sed.c b/editors/sed.c
index db364e3ee..7950b9303 100644
--- a/editors/sed.c
+++ b/editors/sed.c
@@ -116,18 +116,18 @@ typedef struct sed_cmd_s {
 /* globals */
 /* options */
 static int be_quiet, in_place, regex_type;
-FILE *nonstdout;
-char *outname,*hold_space;
+static FILE *nonstdout;
+static char *outname,*hold_space;
 
 /* List of input files */
-int input_file_count,current_input_file;
-FILE **input_file_list;
+static int input_file_count,current_input_file;
+static FILE **input_file_list;
 
 static const char bad_format_in_subst[] =
         "bad format in substitution expression";
-const char *const semicolon_whitespace = "; \n\r\t\v";
+static const char *const semicolon_whitespace = "; \n\r\t\v";
 
-regmatch_t regmatch[10];
+static regmatch_t regmatch[10];
 static regex_t *previous_regex_ptr;
 
 /* linked list of sed commands */
@@ -135,11 +135,11 @@ static sed_cmd_t sed_cmd_head;
 static sed_cmd_t *sed_cmd_tail = &sed_cmd_head;
 
 /* Linked list of append lines */
-struct append_list {
+static struct append_list {
         char *string;
         struct append_list *next;
 };
-struct append_list *append_head=NULL, *append_tail=NULL;
+static struct append_list *append_head=NULL, *append_tail=NULL;
 
 #ifdef CONFIG_FEATURE_CLEAN_UP
 static void free_and_close_stuff(void)
@@ -482,7 +482,7 @@ static char *parse_cmd_args(sed_cmd_t *sed_cmd, char *cmdstr)
 
 /* Parse address+command sets, skipping comment lines. */
 
-void add_cmd(char *cmdstr)
+static void add_cmd(char *cmdstr)
 {
         static char *add_cmd_line=NULL;
         sed_cmd_t *sed_cmd;
@@ -576,7 +576,7 @@ void add_cmd(char *cmdstr)
 
 /* Append to a string, reallocating memory as necessary. */
 
-struct pipeline {
+static struct pipeline {
         char *buf;      /* Space to hold string */
         int idx;        /* Space used */
         int len;        /* Space allocated */
@@ -584,7 +584,7 @@ struct pipeline {
 
 #define PIPE_GROW 64
 
-void pipe_putc(char c)
+static void pipe_putc(char c)
 {
         if(pipeline.idx==pipeline.len) {
                 pipeline.buf = xrealloc(pipeline.buf, pipeline.len + PIPE_GROW);
@@ -729,7 +729,7 @@ static void flush_append(void)
         append_head=append_tail=NULL;
 }
 
-void add_input_file(FILE *file)
+static void add_input_file(FILE *file)
 {
         input_file_list=xrealloc(input_file_list,(input_file_count+1)*sizeof(FILE *));
         input_file_list[input_file_count++]=file;
diff --git a/findutils/find.c b/findutils/find.c
index 11a838e9f..abbd82b3a 100644
--- a/findutils/find.c
+++ b/findutils/find.c
@@ -59,7 +59,7 @@ static int xdev_count = 0;
 #endif
 
 #ifdef CONFIG_FEATURE_FIND_NEWER
-time_t newer_mtime;
+static time_t newer_mtime;
 #endif
 
 #ifdef CONFIG_FEATURE_FIND_INUM
diff --git a/libbb/hash_fd.c b/libbb/hash_fd.c
index e37ac549a..5f12259b3 100644
--- a/libbb/hash_fd.c
+++ b/libbb/hash_fd.c
@@ -197,7 +197,7 @@ static uint32_t mask[4] = { 0x00000000, 0xff000000, 0xffff0000, 0xffffff00 };
 static uint32_t bits[4] = { 0x80000000, 0x00800000, 0x00008000, 0x00000080 };
 # endif /* __BYTE_ORDER */
 
-void sha1_end(unsigned char hval[], struct sha1_ctx_t *ctx)
+static void sha1_end(unsigned char hval[], struct sha1_ctx_t *ctx)
 {
         uint32_t i, cnt = (uint32_t) (ctx->count[0] & SHA1_MASK);
 
diff --git a/libbb/interface.c b/libbb/interface.c
index db18b9ad9..37a5f6405 100644
--- a/libbb/interface.c
+++ b/libbb/interface.c
@@ -986,7 +986,7 @@ static int if_readconf(void)
         return err;
 }
 
-char *get_name(char *name, char *p)
+static char *get_name(char *name, char *p)
 {
         /* Extract <name>[:<alias>] from nul-terminated p where p matches
            <name>[:<alias>]: after leading whitespace.
diff --git a/loginutils/getty.c b/loginutils/getty.c
index a9ef561fa..3dd6258c5 100644
--- a/loginutils/getty.c
+++ b/loginutils/getty.c
@@ -151,7 +151,7 @@ struct options {
 
 /* Storage for things detected while the login name was read. */
 
-struct chardata {
+static struct chardata {
         int erase;                                      /* erase character */
         int kill;                                       /* kill character */
         int eol;                                        /* end-of-line character */
@@ -161,7 +161,7 @@ struct chardata {
 
 /* Initial values for the above. */
 
-struct chardata init_chardata = {
+static struct chardata init_chardata = {
         DEF_ERASE,                                      /* default erase character */
         DEF_KILL,                                       /* default kill character */
         13,                                                     /* default eol char */
diff --git a/loginutils/login.c b/loginutils/login.c
index 25f3c01e2..34095a6a7 100644
--- a/loginutils/login.c
+++ b/loginutils/login.c
@@ -28,7 +28,7 @@
 static void checkutmp(int picky);
 static void setutmp(const char *name, const char *line);
 /* Stuff global to this file */
-struct utmp utent;
+static struct utmp utent;
 #endif
 
 // login defines
diff --git a/loginutils/passwd.c b/loginutils/passwd.c
index 9c4b4ddfb..c8940eed7 100644
--- a/loginutils/passwd.c
+++ b/loginutils/passwd.c
@@ -21,7 +21,7 @@ static int new_password(const struct passwd *pw, int amroot, int algo);
 static void set_filesize_limit(int blocks);
 
 
-int get_algo(char *a)
+static int get_algo(char *a)
 {
         int x = 1;                                      /* standard: MD5 */
 
@@ -31,7 +31,7 @@ int get_algo(char *a)
 }
 
 
-extern int update_passwd(const struct passwd *pw, char *crypt_pw)
+static int update_passwd(const struct passwd *pw, char *crypt_pw)
 {
         char filename[1024];
         char buf[1025];
diff --git a/loginutils/vlock.c b/loginutils/vlock.c
index def484ae6..b66a3b1ae 100644
--- a/loginutils/vlock.c
+++ b/loginutils/vlock.c
@@ -51,7 +51,7 @@ static int o_lock_all = 0;
 static struct spwd *spw;
 
 /* getspuid - get a shadow entry by uid */
-struct spwd *getspuid(uid_t uid)
+static struct spwd *getspuid(uid_t uid)
 {
         struct spwd *sp;
         struct passwd *mypw;
diff --git a/miscutils/hdparm.c b/miscutils/hdparm.c
index 0d2c328f0..5635ffd69 100644
--- a/miscutils/hdparm.c
+++ b/miscutils/hdparm.c
@@ -467,8 +467,8 @@ static const char *secu_str[] = {
 
 /* Busybox messages and functions */
 
-const char * const bb_msg_shared_mem    ="could not %s sharedmem buf";
-const char * const bb_msg_op_not_supp   =" operation not supported on %s disks";
+static const char * const bb_msg_shared_mem     ="could not %s sharedmem buf";
+static const char * const bb_msg_op_not_supp    =" operation not supported on %s disks";
 
 static void bb_ioctl(int fd, int request, void *argp, const char *string)
 {
diff --git a/modutils/modprobe.c b/modutils/modprobe.c
index 83244fca5..b8268b3ab 100644
--- a/modutils/modprobe.c
+++ b/modutils/modprobe.c
@@ -61,7 +61,7 @@ static struct dep_t *depend;
 static int autoclean, show_only, quiet, do_syslog, verbose;
 static int k_version;
 
-int parse_tag_value ( char *buffer, char **ptag, char **pvalue )
+static int parse_tag_value ( char *buffer, char **ptag, char **pvalue )
 {
         char *tag, *value;
 
diff --git a/networking/arping.c b/networking/arping.c
index 7279e8653..95ca1ed2e 100644
--- a/networking/arping.c
+++ b/networking/arping.c
@@ -106,7 +106,7 @@ static int send_pack(int sock, struct in_addr *src_addr,
         return err;
 }
 
-void finish(void)
+static void finish(void)
 {
         if (!quiet) {
                 printf("Sent %d probes (%d broadcast(s))\n", sent, brd_sent);
@@ -129,7 +129,7 @@ void finish(void)
         exit(!received);
 }
 
-void catcher(void)
+static void catcher(void)
 {
         struct timeval tv;
         static struct timeval start;
@@ -151,7 +151,7 @@ void catcher(void)
         alarm(1);
 }
 
-int recv_pack(unsigned char *buf, int len, struct sockaddr_ll *FROM)
+static int recv_pack(unsigned char *buf, int len, struct sockaddr_ll *FROM)
 {
         struct timeval tv;
         struct arphdr *ah = (struct arphdr *) buf;
diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index f93f502bd..916948175 100644
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -462,7 +462,7 @@ static struct method_t methods6[] = {
         { "loopback", loopback_up6, loopback_down6, },
 };
 
-struct address_family_t addr_inet6 = {
+static struct address_family_t addr_inet6 = {
         "inet6",
         sizeof(methods6) / sizeof(struct method_t),
         methods6
@@ -611,7 +611,7 @@ static struct method_t methods[] =
         { "loopback", loopback_up, loopback_down, },
 };
 
-struct address_family_t addr_inet =
+static struct address_family_t addr_inet =
 {
         "inet",
         sizeof(methods) / sizeof(struct method_t),
diff --git a/networking/libiproute/ipaddress.c b/networking/libiproute/ipaddress.c
index 7e0c75785..da7a67bfe 100644
--- a/networking/libiproute/ipaddress.c
+++ b/networking/libiproute/ipaddress.c
@@ -48,7 +48,7 @@ static struct
         struct rtnl_handle *rth;
 } filter;
 
-void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
+static void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
 {
         fprintf(fp, "<");
         flags &= ~IFF_RUNNING;
diff --git a/networking/libiproute/iptunnel.c b/networking/libiproute/iptunnel.c
index f8713e08b..85c6099ed 100644
--- a/networking/libiproute/iptunnel.c
+++ b/networking/libiproute/iptunnel.c
@@ -361,7 +361,7 @@ static int do_add(int cmd, int argc, char **argv)
         return -1;
 }
 
-int do_del(int argc, char **argv)
+static int do_del(int argc, char **argv)
 {
         struct ip_tunnel_parm p;
 
@@ -381,7 +381,7 @@ int do_del(int argc, char **argv)
         return -1;
 }
 
-void print_tunnel(struct ip_tunnel_parm *p)
+static void print_tunnel(struct ip_tunnel_parm *p)
 {
         char s1[256];
         char s2[256];
diff --git a/networking/libiproute/ll_proto.c b/networking/libiproute/ll_proto.c
index 9b5260b32..104fbca25 100644
--- a/networking/libiproute/ll_proto.c
+++ b/networking/libiproute/ll_proto.c
@@ -90,7 +90,7 @@ __PF(ECONET,econet)
 #undef __PF
 
 
-char * ll_proto_n2a(unsigned short id, char *buf, int len)
+const char * ll_proto_n2a(unsigned short id, char *buf, int len)
 {
         int i;
 
diff --git a/networking/libiproute/ll_types.c b/networking/libiproute/ll_types.c
index f39f777e1..6b42426d5 100644
--- a/networking/libiproute/ll_types.c
+++ b/networking/libiproute/ll_types.c
@@ -13,7 +13,7 @@
 
 #include <linux/if_arp.h>
 
-char * ll_type_n2a(int type, char *buf, int len)
+const char * ll_type_n2a(int type, char *buf, int len)
 {
 #define __PF(f,n) { ARPHRD_##f, #n },
 static struct {
diff --git a/networking/libiproute/rt_names.c b/networking/libiproute/rt_names.c
index d503645b0..ff93c9e72 100644
--- a/networking/libiproute/rt_names.c
+++ b/networking/libiproute/rt_names.c
@@ -76,7 +76,7 @@ static void rtnl_rtprot_initialize(void)
                             rtnl_rtprot_tab, 256);
 }
 
-char * rtnl_rtprot_n2a(int id, char *buf, int len)
+const char * rtnl_rtprot_n2a(int id, char *buf, int len)
 {
         if (id<0 || id>=256) {
                 snprintf(buf, len, "%d", id);
@@ -143,7 +143,7 @@ static void rtnl_rtscope_initialize(void)
                             rtnl_rtscope_tab, 256);
 }
 
-char * rtnl_rtscope_n2a(int id, char *buf, int len)
+const char * rtnl_rtscope_n2a(int id, char *buf, int len)
 {
         if (id<0 || id>=256) {
                 snprintf(buf, len, "%d", id);
@@ -206,7 +206,7 @@ static void rtnl_rtrealm_initialize(void)
                             rtnl_rtrealm_tab, 256);
 }
 
-char * rtnl_rtrealm_n2a(int id, char *buf, int len)
+const char * rtnl_rtrealm_n2a(int id, char *buf, int len)
 {
         if (id<0 || id>=256) {
                 snprintf(buf, len, "%d", id);
@@ -272,7 +272,7 @@ static void rtnl_rttable_initialize(void)
                             rtnl_rttable_tab, 256);
 }
 
-char * rtnl_rttable_n2a(int id, char *buf, int len)
+const char * rtnl_rttable_n2a(int id, char *buf, int len)
 {
         if (id<0 || id>=256) {
                 snprintf(buf, len, "%d", id);
@@ -334,7 +334,7 @@ static void rtnl_rtdsfield_initialize(void)
                             rtnl_rtdsfield_tab, 256);
 }
 
-char * rtnl_dsfield_n2a(int id, char *buf, int len)
+const char * rtnl_dsfield_n2a(int id, char *buf, int len)
 {
         if (id<0 || id>=256) {
                 snprintf(buf, len, "%d", id);
diff --git a/networking/nameif.c b/networking/nameif.c
index 10f13b4bc..769b777f0 100644
--- a/networking/nameif.c
+++ b/networking/nameif.c
@@ -86,7 +86,7 @@ static void serror(const char *s, ...)
 }
 
 /* Check ascii str_macaddr, convert and copy to *mac */
-struct ether_addr *cc_macaddr(char *str_macaddr)
+static struct ether_addr *cc_macaddr(char *str_macaddr)
 {
         struct ether_addr *lmac, *mac;
 
diff --git a/networking/ping.c b/networking/ping.c
index 50f3930ff..c7cbd7078 100644
--- a/networking/ping.c
+++ b/networking/ping.c
@@ -178,7 +178,10 @@ static int myid, options;
 static unsigned long tmin = ULONG_MAX, tmax, tsum;
 static char rcvd_tbl[MAX_DUP_CHK / 8];
 
-struct hostent *hostent;
+#ifndef CONFIG_FEATURE_FANCY_PING6
+static
+#endif
+        struct hostent *hostent;
 
 static void sendping(int);
 static void pingstats(int);
diff --git a/networking/route.c b/networking/route.c
index 5c092f452..9e14944c9 100644
--- a/networking/route.c
+++ b/networking/route.c
@@ -485,6 +485,7 @@ void set_flags(char *flagstr, int flags)
         }
 }
 
+/* also used in netstat */
 void displayroutes(int noresolve, int netstatfmt)
 {
         char devname[64], flags[16], sdest[16], sgw[16];
diff --git a/networking/tftp.c b/networking/tftp.c
index 3c947318b..095dc58f9 100644
--- a/networking/tftp.c
+++ b/networking/tftp.c
@@ -71,8 +71,8 @@ static const char *tftp_bb_error_msg[] = {
         "No such user"
 };
 
-const int tftp_cmd_get = 1;
-const int tftp_cmd_put = 2;
+static const int tftp_cmd_get = 1;
+static const int tftp_cmd_put = 2;
 
 #ifdef CONFIG_FEATURE_TFTP_BLOCKSIZE
 
diff --git a/networking/udhcp/script.h b/networking/udhcp/script.h
index 87a20cc17..71003311c 100644
--- a/networking/udhcp/script.h
+++ b/networking/udhcp/script.h
@@ -1,6 +1,6 @@
 #ifndef _SCRIPT_H
 #define _SCRIPT_H
 
-void run_script(struct dhcpMessage *packet, const char *name);
+extern void run_script(struct dhcpMessage *packet, const char *name);
 
 #endif
diff --git a/networking/wget.c b/networking/wget.c
index 45acef4d6..59f30c06d 100644
--- a/networking/wget.c
+++ b/networking/wget.c
@@ -117,9 +117,9 @@ static char *safe_fgets(char *s, int size, FILE *stream)
 /*
  *  Base64-encode character string
  *  oops... isn't something similar in uuencode.c?
- *  It would be better to use already existing code
+ *  XXX: It would be better to use already existing code
  */
-char *base64enc(unsigned char *p, char *buf, int len) {
+static char *base64enc(unsigned char *p, char *buf, int len) {
 
         char al[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
                     "0123456789+/";
diff --git a/procps/top.c b/procps/top.c
index 5963c3554..c0f78f794 100644
--- a/procps/top.c
+++ b/procps/top.c
@@ -78,7 +78,7 @@ static int time_sort (procps_status_t *P, procps_status_t *Q)
     return (int)((Q->stime + Q->utime) - (P->stime + P->utime));
 }
 
-int mult_lvl_cmp(void* a, void* b) {
+static int mult_lvl_cmp(void* a, void* b) {
     int i, cmp_val;
 
     for(i = 0; i < sort_depth; i++) {