Various cleanups I made while going through Erik Hovland's patch submissions,

some of which are even from him. :)

5 files changed, 31 insertions, 111 deletions

diff --git a/archival/libunarchive/decompress_unzip.c b/archival/libunarchive/decompress_unzip.c
index a589bdcd4..e39901c1b 100644
--- a/archival/libunarchive/decompress_unzip.c
+++ b/archival/libunarchive/decompress_unzip.c
@@ -21,21 +21,6 @@
  * to free leaked bytebuffer memory (used in unzip.c), and some minor style
  * guide cleanups by Ed Clark
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- *
  * gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface
  * Copyright (C) 1992-1993 Jean-loup Gailly
  * The unzip code was written and put in the public domain by Mark Adler.
@@ -43,38 +28,14 @@
  * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies,
  * Ken Turkowski, Dave Mack and Peter Jannesen.
  *
- * See the license_msg below and the file COPYING for the software license.
  * See the file algorithm.doc for the compression algorithms and file formats.
+ * 
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-#if 0
-static char *license_msg[] = {
-        "   Copyright (C) 1992-1993 Jean-loup Gailly",
-        "   This program is free software; you can redistribute it and/or modify",
-        "   it under the terms of the GNU General Public License as published by",
-        "   the Free Software Foundation; either version 2, or (at your option)",
-        "   any later version.",
-        "",
-        "   This program is distributed in the hope that it will be useful,",
-        "   but WITHOUT ANY WARRANTY; without even the implied warranty of",
-        "   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the",
-        "   GNU General Public License for more details.",
-        "",
-        "   You should have received a copy of the GNU General Public License",
-        "   along with this program; if not, write to the Free Software",
-        "   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.",
-        0
-};
-#endif
-
-#include <sys/types.h>
+#include "libbb.h"
 #include <sys/wait.h>
 #include <signal.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include "libbb.h"
 #include "unarchive.h"
 
 typedef struct huft_s {
@@ -213,17 +174,17 @@ int huft_build(unsigned int *b, const unsigned int n,
         unsigned eob_len;               /* length of end-of-block code (value 256) */
         unsigned f;                             /* i repeats in table every f entries */
         int g;                                  /* maximum code length */
-        int h;                                  /* table level */
-        register unsigned i;    /* counter, current code */
-        register unsigned j;    /* counter */
-        register int k;                 /* number of bits in current code */
-        register unsigned *p;   /* pointer into c[], b[], or v[] */
-        register huft_t *q;             /* points to current table */
+        int htl;                                /* table level */
+        unsigned i;                             /* counter, current code */
+        unsigned j;                             /* counter */
+        int k;                                  /* number of bits in current code */
+        unsigned *p;                    /* pointer into c[], b[], or v[] */
+        huft_t *q;                              /* points to current table */
         huft_t r;                               /* table entry for structure assignment */
         huft_t *u[BMAX];                /* table stack */
         unsigned v[N_MAX];              /* values in order of bit length */
         int ws[BMAX+1];                 /* bits decoded stack */
-        register int w;                 /* bits decoded */
+        int w;                                  /* bits decoded */
         unsigned x[BMAX + 1];   /* bit offsets, then code stack */
         unsigned *xp;                   /* pointer into x */
         int y;                                  /* number of dummy codes added */
@@ -284,7 +245,7 @@ int huft_build(unsigned int *b, const unsigned int n,
         /* Generate the Huffman codes and for each, make the table entries */
         x[0] = i = 0;                   /* first Huffman code is zero */
         p = v;                                  /* grab values in bit order */
-        h = -1;                                 /* no tables yet--level -1 */
+        htl = -1;                               /* no tables yet--level -1 */
         w = ws[0] = 0;                  /* bits decoded */
         u[0] = (huft_t *) NULL; /* just to keep compilers happy */
         q = (huft_t *) NULL;    /* ditto */
@@ -296,8 +257,8 @@ int huft_build(unsigned int *b, const unsigned int n,
                 while (a--) {
                         /* here i is the Huffman code of length k bits for value *p */
                         /* make tables up to required level */
-                        while (k > ws[h + 1]) {
-                                w = ws[++h];
+                        while (k > ws[htl + 1]) {
+                                w = ws[++htl];
 
                                 /* compute minimum size table less than or equal to *m bits */
                                 z = (z = g - w) > *m ? *m : z; /* upper limit on table size */
@@ -314,22 +275,22 @@ int huft_build(unsigned int *b, const unsigned int n,
                                 }
                                 j = (w + j > eob_len && w < eob_len) ? eob_len - w : j; /* make EOB code end at table */
                                 z = 1 << j;     /* table entries for j-bit table */
-                                ws[h+1] = w + j;        /* set bits decoded in stack */
+                                ws[htl+1] = w + j;      /* set bits decoded in stack */
 
                                 /* allocate and link in new table */
-                                q = (huft_t *) xmalloc((z + 1) * sizeof(huft_t));
+                                q = (huft_t *) xzalloc((z + 1) * sizeof(huft_t));
                                 *t = q + 1;     /* link to list for huft_free() */
-                                *(t = &(q->v.t)) = NULL;
-                                u[h] = ++q;     /* table starts after link */
+                                t = &(q->v.t);
+                                u[htl] = ++q;   /* table starts after link */
 
                                 /* connect to last table, if there is one */
-                                if (h) {
-                                        x[h] = i; /* save pattern for backing up */
-                                        r.b = (unsigned char) (w - ws[h - 1]); /* bits to dump before this table */
+                                if (htl) {
+                                        x[htl] = i; /* save pattern for backing up */
+                                        r.b = (unsigned char) (w - ws[htl - 1]); /* bits to dump before this table */
                                         r.e = (unsigned char) (16 + j); /* bits in this table */
                                         r.v.t = q; /* pointer to this table */
-                                        j = (i & ((1 << w) - 1)) >> ws[h - 1];
-                                        u[h - 1][j] = r; /* connect to last table */
+                                        j = (i & ((1 << w) - 1)) >> ws[htl - 1];
+                                        u[htl - 1][j] = r; /* connect to last table */
                                 }
                         }
 
@@ -358,8 +319,8 @@ int huft_build(unsigned int *b, const unsigned int n,
                         i ^= j;
 
                         /* backup over finished tables */
-                        while ((i & ((1 << w) - 1)) != x[h]) {
-                                w = ws[--h];
+                        while ((i & ((1 << w) - 1)) != x[htl]) {
+                                w = ws[--htl];
                         }
                 }
         }
diff --git a/e2fsprogs/ext2fs/ext_attr.c b/e2fsprogs/ext2fs/ext_attr.c
index 17610a914..ca9f9e20c 100644
--- a/e2fsprogs/ext2fs/ext_attr.c
+++ b/e2fsprogs/ext2fs/ext_attr.c
@@ -41,16 +41,14 @@ errcode_t ext2fs_write_ext_attr(ext2_filsys fs, blk_t block, void *inbuf)
         char            *write_buf;
         char            *buf = NULL;
 
-#if BB_BIG_ENDIAN
-        if ((fs->flags & EXT2_FLAG_SWAP_BYTES) ||
-            (fs->flags & EXT2_FLAG_SWAP_BYTES_WRITE)) {
+        if (BB_BIG_ENDIAN && ((fs->flags & EXT2_FLAG_SWAP_BYTES) ||
+            (fs->flags & EXT2_FLAG_SWAP_BYTES_WRITE))) {
                 retval = ext2fs_get_mem(fs->blocksize, &buf);
                 if (retval)
                         return retval;
                 write_buf = buf;
                 ext2fs_swap_ext_attr(buf, inbuf, fs->blocksize, 1);
         } else
-#endif
                 write_buf = (char *) inbuf;
         retval = io_channel_write_blk(fs->io, block, 1, write_buf);
         if (buf)
diff --git a/miscutils/crontab.c b/miscutils/crontab.c
index 67279fdeb..0ed59b0dc 100644
--- a/miscutils/crontab.c
+++ b/miscutils/crontab.c
@@ -62,7 +62,7 @@ crontab_main(int ac, char **av)
     if ((pas = getpwuid(UserId)) == NULL)
         bb_perror_msg_and_die("getpwuid");
 
-    strncpy(caller, pas->pw_name, sizeof(caller));
+    safe_strncpy(caller, pas->pw_name, sizeof(caller));
 
     i = 1;
     if (ac > 1) {
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index a1b6d4626..8c795bc62 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -61,41 +61,6 @@ struct client_config_t client_config = {
         .arp = "\0\0\0\0\0\0",          /* appease gcc-3.0 */
 };
 
-#ifndef IN_BUSYBOX
-static void ATTRIBUTE_NORETURN show_usage(void)
-{
-        printf(
-"Usage: udhcpc [OPTIONS]\n\n"
-"  -c, --clientid=CLIENTID         Set client identifier - type is first char\n"
-"  -C, --clientid-none             Suppress default client identifier\n"
-"  -V, --vendorclass=CLASSID       Set vendor class identifier\n"
-"  -H, --hostname=HOSTNAME         Client hostname\n"
-"  -h                              Alias for -H\n"
-"  -F, --fqdn=FQDN                 Client fully qualified domain name\n"
-"  -f, --foreground                Do not fork after getting lease\n"
-"  -b, --background                Fork to background if lease cannot be\n"
-"                                  immediately negotiated.\n"
-"  -i, --interface=INTERFACE       Interface to use (default: eth0)\n"
-"  -n, --now                       Exit with failure if lease cannot be\n"
-"                                  immediately negotiated.\n"
-"  -p, --pidfile=file              Store process ID of daemon in file\n"
-"  -q, --quit                      Quit after obtaining lease\n"
-"  -r, --request=IP                IP address to request (default: none)\n"
-"  -s, --script=file               Run file at dhcp events (default:\n"
-"                                  " DEFAULT_SCRIPT ")\n"
-"  -T, --timeout=seconds           Try to get the lease for the amount of\n"
-"                                  seconds (default: 3)\n"
-"  -t, --retries=NUM               Send up to NUM request packets\n"
-"  -v, --version                   Display version\n"
-        );
-        exit(0);
-}
-#else
-#define show_usage bb_show_usage
-extern void show_usage(void) ATTRIBUTE_NORETURN;
-#endif
-
-
 /* just a little helper */
 static void change_mode(int new_mode)
 {
@@ -169,11 +134,7 @@ static void client_background(void)
 }
 
 
-#ifdef COMBINED_BINARY
 int udhcpc_main(int argc, char *argv[])
-#else
-int main(int argc, char *argv[])
-#endif
 {
         uint8_t *temp, *message;
         unsigned long t1 = 0, t2 = 0, xid = 0;
@@ -218,7 +179,7 @@ int main(int argc, char *argv[])
 
                 switch (c) {
                 case 'c':
-                        if (no_clientid) show_usage();
+                        if (no_clientid) bb_show_usage();
                         len = strlen(optarg) > 255 ? 255 : strlen(optarg);
                         free(client_config.clientid);
                         client_config.clientid = xmalloc(len + 2);
@@ -228,7 +189,7 @@ int main(int argc, char *argv[])
                         strncpy((char*)client_config.clientid + OPT_DATA, optarg, len);
                         break;
                 case 'C':
-                        if (client_config.clientid) show_usage();
+                        if (client_config.clientid) bb_show_usage();
                         no_clientid = 1;
                         break;
                 case 'V':
@@ -300,7 +261,7 @@ int main(int argc, char *argv[])
                         return 0;
                         break;
                 default:
-                        show_usage();
+                        bb_show_usage();
                 }
         }
 
diff --git a/util-linux/fdisk.c b/util-linux/fdisk.c
index cd8252649..0f268afed 100644
--- a/util-linux/fdisk.c
+++ b/util-linux/fdisk.c
@@ -1974,7 +1974,7 @@ create_sgiinfo(void)
         /* I keep SGI's habit to write the sgilabel to the second block */
         sgilabel->directory[0].vol_file_start = SGI_SSWAP32(2);
         sgilabel->directory[0].vol_file_size = SGI_SSWAP32(sizeof(sgiinfo));
-        strncpy((char*)sgilabel->directory[0].vol_file_name, "sgilabel", 8);
+        strcpy((char*)sgilabel->directory[0].vol_file_name, "sgilabel");
 }
 
 static sgiinfo *fill_sgiinfo(void);