More size shrinkage.

11 files changed, 37 insertions, 197 deletions

diff --git a/archival/dpkg.c b/archival/dpkg.c
index 2895f4f38..c911333e0 100644
--- a/archival/dpkg.c
+++ b/archival/dpkg.c
@@ -7,19 +7,7 @@
  *
  *  Started life as a busybox implementation of udpkg
  *
- *  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 Library 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.
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
 /*
@@ -556,7 +544,7 @@ static unsigned int fill_package_struct(char *control_buffer)
                 "Conflicts", "Suggests", "Recommends", "Enhances", 0
         };
 
-        common_node_t *new_node = (common_node_t *) xcalloc(1, sizeof(common_node_t));
+        common_node_t *new_node = (common_node_t *) xzalloc(sizeof(common_node_t));
         char *field_name;
         char *field_value;
         int field_start = 0;
@@ -677,8 +665,7 @@ static void set_status(const unsigned int status_node_num, const char *new_value
                         bb_error_msg_and_die("DEBUG ONLY: this shouldnt happen");
         }
 
-        new_status = (char *) xmalloc(want_len + flag_len + status_len + 3);
-        sprintf(new_status, "%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
+        new_status = bb_xasprintf("%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
         status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
         free(new_status);
         return;
@@ -741,79 +728,6 @@ static void index_status_file(const char *filename)
         return;
 }
 
-#if 0 /* this code is no longer used */
-char *get_depends_field(common_node_t *package, const int depends_type)
-{
-        char *depends = NULL;
-        char *old_sep = (char *)xcalloc(1, 3);
-        char *new_sep = (char *)xcalloc(1, 3);
-        int line_size = 0;
-        int depends_size;
-
-        int i;
-
-        for (i = 0; i < package->num_of_edges; i++) {
-                if ((package->edge[i]->type == EDGE_OR_PRE_DEPENDS) ||
-                        (package->edge[i]->type == EDGE_OR_DEPENDS)) {
-                }
-
-                if ((package->edge[i]->type == depends_type) ||
-                        (package->edge[i]->type == depends_type + 1)) {
-                        /* Check if its the first time through */
-
-                        depends_size = 8 + strlen(name_hashtable[package->edge[i]->name])
-                                + strlen(name_hashtable[package->edge[i]->version]);
-                        line_size += depends_size;
-                        depends = (char *) xrealloc(depends, line_size + 1);
-
-                        /* Check to see if this dependency is the type we are looking for
-                         * +1 to check for 'extra' types, e.g. ored dependecies */
-                        strcpy(old_sep, new_sep);
-                        if (package->edge[i]->type == depends_type) {
-                                strcpy(new_sep, ", ");
-                        }
-                        else if (package->edge[i]->type == depends_type + 1) {
-                                strcpy(new_sep, "| ");
-                        }
-
-                        if (depends_size == line_size) {
-                                strcpy(depends, "");
-                        } else {
-                                if ((strcmp(old_sep, "| ") == 0) && (strcmp(new_sep, "| ") == 0)) {
-                                        strcat(depends, " | ");
-                                } else {
-                                        strcat(depends, ", ");
-                                }
-                        }
-
-                        strcat(depends, name_hashtable[package->edge[i]->name]);
-                        if (strcmp(name_hashtable[package->edge[i]->version], "NULL") != 0) {
-                                if (package->edge[i]->operator == VER_EQUAL) {
-                                        strcat(depends, " (= ");
-                                }
-                                else if (package->edge[i]->operator == VER_LESS) {
-                                        strcat(depends, " (<< ");
-                                }
-                                else if (package->edge[i]->operator == VER_LESS_EQUAL) {
-                                        strcat(depends, " (<= ");
-                                }
-                                else if (package->edge[i]->operator == VER_MORE) {
-                                        strcat(depends, " (>> ");
-                                }
-                                else if (package->edge[i]->operator == VER_MORE_EQUAL) {
-                                        strcat(depends, " (>= ");
-                                } else {
-                                        strcat(depends, " (");
-                                }
-                                strcat(depends, name_hashtable[package->edge[i]->version]);
-                                strcat(depends, ")");
-                        }
-                }
-        }
-        return(depends);
-}
-#endif
-
 static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
 {
         char *name;
@@ -1027,11 +941,9 @@ static int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
                                         package_hashtable[package_num]->edge[j]->operator);
                                 if (package_hashtable[conflicts_package_num] == NULL) {
                                         /* create a new package */
-                                        common_node_t *new_node = (common_node_t *) xmalloc(sizeof(common_node_t));
+                                        common_node_t *new_node = (common_node_t *) xzalloc(sizeof(common_node_t));
                                         new_node->name = package_hashtable[package_num]->edge[j]->name;
                                         new_node->version = package_hashtable[package_num]->edge[j]->version;
-                                        new_node->num_of_edges = 0;
-                                        new_node->edge = NULL;
                                         package_hashtable[conflicts_package_num] = new_node;
                                 }
                                 conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
@@ -1279,15 +1191,10 @@ static int run_package_script(const char *package_name, const char *script_type)
         char *script_path;
         int result;
 
-        script_path = xmalloc(strlen(package_name) + strlen(script_type) + 21);
-        sprintf(script_path, "/var/lib/dpkg/info/%s.%s", package_name, script_type);
+        script_path = bb_xasprintf("/var/lib/dpkg/info/%s.%s", package_name, script_type);
 
         /* If the file doesnt exist is isnt a fatal */
-        if (lstat(script_path, &path_stat) < 0) {
-                result = EXIT_SUCCESS;
-        } else {
-                result = system(script_path);
-        }
+        result = lstat(script_path, &path_stat) < 0 ? EXIT_SUCCESS : system(script_path);
         free(script_path);
         return(result);
 }
@@ -1301,13 +1208,11 @@ static char **all_control_list(const char *package_name)
         char **remove_files;
 
         /* Create a list of all /var/lib/dpkg/info/<package> files */
-        remove_files = xmalloc(sizeof(all_control_files));
+        remove_files = xzalloc(sizeof(all_control_files));
         while (all_control_files[i]) {
-                remove_files[i] = xmalloc(strlen(package_name) + strlen(all_control_files[i]) + 21);
-                sprintf(remove_files[i], "/var/lib/dpkg/info/%s.%s", package_name, all_control_files[i]);
+                remove_files[i] = bb_xasprintf("/var/lib/dpkg/info/%s.%s", package_name, all_control_files[i]);
                 i++;
         }
-        remove_files[sizeof(all_control_files)/sizeof(char*) - 1] = NULL;
 
         return(remove_files);
 }
@@ -1400,11 +1305,9 @@ static void remove_package(const unsigned int package_num, int noisy)
         free_array(remove_files);
 
         /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep  */
-        exclude_files = xmalloc(sizeof(char*) * 3);
+        exclude_files = xzalloc(sizeof(char*) * 3);
         exclude_files[0] = bb_xstrdup(conffile_name);
-        exclude_files[1] = xmalloc(package_name_length + 27);
-        sprintf(exclude_files[1], "/var/lib/dpkg/info/%s.postrm", package_name);
-        exclude_files[2] = NULL;
+        exclude_files[1] = bb_xasprintf("/var/lib/dpkg/info/%s.postrm", package_name);
 
         /* Create a list of all /var/lib/dpkg/info/<package> files */
         remove_files = all_control_list(package_name);
@@ -1440,8 +1343,7 @@ static void purge_package(const unsigned int package_num)
         sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
         remove_files = create_list(list_name);
 
-        exclude_files = xmalloc(sizeof(char*));
-        exclude_files[0] = NULL;
+        exclude_files = xzalloc(sizeof(char*));
 
         /* Some directories cant be removed straight away, so do multiple passes */
         while (remove_file_array(remove_files, exclude_files));
@@ -1536,9 +1438,7 @@ static void data_extract_all_prefix(archive_handle_t *archive_handle)
 
         name_ptr += strspn(name_ptr, "./");
         if (name_ptr[0] != '\0') {
-                archive_handle->file_header->name = xmalloc(strlen(archive_handle->buffer) + 2 + strlen(name_ptr));
-                strcpy(archive_handle->file_header->name, archive_handle->buffer);
-                strcat(archive_handle->file_header->name, name_ptr);
+                archive_handle->file_header->name = bb_xasprintf("%s%s", archive_handle->buffer, name_ptr);
                 data_extract_all(archive_handle);
         }
         return;
@@ -1567,14 +1467,12 @@ static void unpack_package(deb_file_t *deb_file)
         }
 
         /* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
-        info_prefix = (char *) xmalloc(strlen(package_name) + 20 + 4 + 2);
-        sprintf(info_prefix, "/var/lib/dpkg/info/%s.", package_name);
+        info_prefix = bb_xasprintf("/var/lib/dpkg/info/%s.", package_name);
         archive_handle = init_archive_deb_ar(deb_file->filename);
         init_archive_deb_control(archive_handle);
 
         while(all_control_files[i]) {
-                char *c = (char *) xmalloc(3 + strlen(all_control_files[i]));
-                sprintf(c, "./%s", all_control_files[i]);
+                char *c = bb_xasprintf("./%s", all_control_files[i]);
                 llist_add_to(&accept_list, c);
                 i++;
         }
@@ -1699,7 +1597,7 @@ int dpkg_main(int argc, char **argv)
         while (optind < argc) {
                 /* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
                 deb_file = xrealloc(deb_file, sizeof(deb_file_t *) * (deb_count + 2));
-                deb_file[deb_count] = (deb_file_t *) xmalloc(sizeof(deb_file_t));
+                deb_file[deb_count] = (deb_file_t *) xzalloc(sizeof(deb_file_t));
                 if (dpkg_opt & dpkg_opt_filename) {
                         archive_handle_t *archive_handle;
                         llist_t *control_list = NULL;
@@ -1742,8 +1640,6 @@ int dpkg_main(int argc, char **argv)
                         }
                 }
                 else if (dpkg_opt & dpkg_opt_package_name) {
-                        deb_file[deb_count]->filename = NULL;
-                        deb_file[deb_count]->control_file = NULL;
                         deb_file[deb_count]->package = search_package_hashtable(
                                 search_name_hashtable(argv[optind]),
                                 search_name_hashtable("ANY"), VER_ANY);
diff --git a/archival/gzip.c b/archival/gzip.c
index c31706af3..4f60c6b24 100644
--- a/archival/gzip.c
+++ b/archival/gzip.c
@@ -16,11 +16,7 @@
  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-/* These defines are very important for BusyBox.  Without these,
- * huge chunks of ram are pre-allocated making the BusyBox bss
- * size Freaking Huge(tm), which is a bad thing.*/
 #define SMALL_MEM
-#define DYN_ALLOC
 
 #include <stdlib.h>
 #include <stdio.h>
@@ -87,17 +83,11 @@ typedef unsigned long ulg;
 #  endif
 #endif
 
-#ifdef DYN_ALLOC
 #  define DECLARE(type, array, size)  static type * array
 #  define ALLOC(type, array, size) { \
-      array = (type*)xcalloc((size_t)(((size)+1L)/2), 2*sizeof(type)); \
+      array = (type*)xzalloc((size_t)(((size)+1L)/2) * 2*sizeof(type)); \
    }
 #  define FREE(array) {free(array), array=NULL;}
-#else
-#  define DECLARE(type, array, size)  static type array[size]
-#  define ALLOC(type, array, size)
-#  define FREE(array)
-#endif
 
 #define tab_suffix window
 #define tab_prefix prev /* hash link (see deflate.c) */
diff --git a/archival/libunarchive/data_extract_to_buffer.c b/archival/libunarchive/data_extract_to_buffer.c
index 1255fe1da..3eaca98b3 100644
--- a/archival/libunarchive/data_extract_to_buffer.c
+++ b/archival/libunarchive/data_extract_to_buffer.c
@@ -1,17 +1,7 @@
 /*
- *  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.
+ * Copyright 2002 Glenn McGrath
  *
- *  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.
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
 #include "libbb.h"
@@ -21,8 +11,7 @@ void data_extract_to_buffer(archive_handle_t *archive_handle)
 {
         const unsigned int size = archive_handle->file_header->size;
 
-        archive_handle->buffer = xmalloc(size + 1);
+        archive_handle->buffer = xzalloc(size + 1);
 
         archive_xread_all(archive_handle, archive_handle->buffer, size);
-        archive_handle->buffer[size] = '\0';
 }
diff --git a/archival/libunarchive/decompress_bunzip2.c b/archival/libunarchive/decompress_bunzip2.c
index 5e26ffd9f..ae96ea375 100644
--- a/archival/libunarchive/decompress_bunzip2.c
+++ b/archival/libunarchive/decompress_bunzip2.c
@@ -644,8 +644,7 @@ static int start_bunzip(bunzip_data **bdp, int in_fd, unsigned char *inbuf,
 
         /* Allocate bunzip_data.  Most fields initialize to zero. */
 
-        bd=*bdp=xmalloc(i);
-        memset(bd,0,sizeof(bunzip_data));
+        bd=*bdp=xzalloc(i);
 
         /* Setup input buffer */
 
diff --git a/archival/libunarchive/get_header_ar.c b/archival/libunarchive/get_header_ar.c
index 385f33dbf..69c4bf2b2 100644
--- a/archival/libunarchive/get_header_ar.c
+++ b/archival/libunarchive/get_header_ar.c
@@ -1,17 +1,6 @@
-/*
- *  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.
+/* Copyright 2001 Glenn McGrath.
  *
- *  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 Library 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.
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
 #include <stdio.h>
diff --git a/archival/libunarchive/get_header_cpio.c b/archival/libunarchive/get_header_cpio.c
index 2bbcd8e5d..f54b5af69 100644
--- a/archival/libunarchive/get_header_cpio.c
+++ b/archival/libunarchive/get_header_cpio.c
@@ -1,17 +1,6 @@
-/*
- *  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.
+/* Copyright 2002 Laurence Anderson
  *
- *  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 Library 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.
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
 #include <stdio.h>
@@ -85,9 +74,8 @@ char get_header_cpio(archive_handle_t *archive_handle)
             file_header->size = tmpsize;
         }
 
-        file_header->name = (char *) xmalloc(namesize + 1);
+        file_header->name = (char *) xzalloc(namesize + 1);
         archive_xread_all(archive_handle, file_header->name, namesize); /* Read in filename */
-        file_header->name[namesize] = '\0';
         archive_handle->offset += namesize;
 
         /* Update offset amount and skip padding before file contents */
@@ -113,9 +101,8 @@ char get_header_cpio(archive_handle_t *archive_handle)
         }
 
         if (S_ISLNK(file_header->mode)) {
-                file_header->link_name = (char *) xmalloc(file_header->size + 1);
+                file_header->link_name = (char *) xzalloc(file_header->size + 1);
                 archive_xread_all(archive_handle, file_header->link_name, file_header->size);
-                file_header->link_name[file_header->size] = '\0';
                 archive_handle->offset += file_header->size;
                 file_header->size = 0; /* Stop possible seeks in future */
         } else {
diff --git a/archival/libunarchive/get_header_tar.c b/archival/libunarchive/get_header_tar.c
index c9308f906..f3f04b582 100644
--- a/archival/libunarchive/get_header_tar.c
+++ b/archival/libunarchive/get_header_tar.c
@@ -168,17 +168,15 @@ char get_header_tar(archive_handle_t *archive_handle)
                 break;
 #ifdef CONFIG_FEATURE_TAR_GNU_EXTENSIONS
         case 'L': {
-                        longname = xmalloc(file_header->size + 1);
+                        longname = xzalloc(file_header->size + 1);
                         archive_xread_all(archive_handle, longname, file_header->size);
-                        longname[file_header->size] = '\0';
                         archive_handle->offset += file_header->size;
 
                         return(get_header_tar(archive_handle));
                 }
         case 'K': {
-                        linkname = xmalloc(file_header->size + 1);
+                        linkname = xzalloc(file_header->size + 1);
                         archive_xread_all(archive_handle, linkname, file_header->size);
-                        linkname[file_header->size] = '\0';
                         archive_handle->offset += file_header->size;
 
                         file_header->name = linkname;
diff --git a/archival/libunarchive/rangecoder.h b/archival/libunarchive/rangecoder.h
index e43ec3908..b806eebf6 100644
--- a/archival/libunarchive/rangecoder.h
+++ b/archival/libunarchive/rangecoder.h
@@ -36,12 +36,12 @@ static void rc_read(rc_t * rc)
 }
 
 /* Called once */
-static ATTRIBUTE_ALWAYS_INLINE void rc_init(rc_t * rc, int fd, int buffer_size)
+static void rc_init(rc_t * rc, int fd, int buffer_size)
 {
         int i;
 
         rc->fd = fd;
-        rc->buffer = malloc(buffer_size);
+        rc->buffer = xmalloc(buffer_size);
         rc->buffer_size = buffer_size;
         rc->buffer_end = rc->buffer + rc->buffer_size;
         rc->ptr = rc->buffer_end;
diff --git a/archival/rpm.c b/archival/rpm.c
index 7f69f0510..9bbc4a856 100644
--- a/archival/rpm.c
+++ b/archival/rpm.c
@@ -208,7 +208,7 @@ void extract_cpio_gz(int fd) {
 
 rpm_index **rpm_gettags(int fd, int *num_tags)
 {
-        rpm_index **tags = calloc(200, sizeof(struct rpmtag *)); /* We should never need mode than 200, and realloc later */
+        rpm_index **tags = xzalloc(200 * sizeof(struct rpmtag *)); /* We should never need mode than 200, and realloc later */
         int pass, tagindex = 0;
         lseek(fd, 96, SEEK_CUR); /* Seek past the unused lead */
 
@@ -327,13 +327,10 @@ void fileaction_list(char *filename, int ATTRIBUTE_UNUSED fileref)
 void loop_through_files(int filetag, void (*fileaction)(char *filename, int fileref))
 {
         int count = 0;
-        char *filename, *tmp_dirname, *tmp_basename;
         while (rpm_getstring(filetag, count)) {
-                tmp_dirname = rpm_getstring(RPMTAG_DIRNAMES, rpm_getint(RPMTAG_DIRINDEXES, count)); /* 1st put on the directory */
-                tmp_basename = rpm_getstring(RPMTAG_BASENAMES, count);
-                filename = xmalloc(strlen(tmp_basename) + strlen(tmp_dirname) + 1);
-                strcpy(filename, tmp_dirname); /* First the directory name */
-                strcat(filename, tmp_basename); /* then the filename */
+                char * filename = bb_xasprintf("%s%s",
+                        rpm_getstring(RPMTAG_DIRNAMES, rpm_getint(RPMTAG_DIRINDEXES,
+                        count)), rpm_getstring(RPMTAG_BASENAMES, count));
                 fileaction(filename, count++);
                 free(filename);
         }
diff --git a/archival/unzip.c b/archival/unzip.c
index 0b1e6f997..c6ef9a183 100644
--- a/archival/unzip.c
+++ b/archival/unzip.c
@@ -275,9 +275,8 @@ int unzip_main(int argc, char **argv)
 
                 /* Read filename */
                 free(dst_fn);
-                dst_fn = xmalloc(zip_header.formated.filename_len + 1);
+                dst_fn = xzalloc(zip_header.formated.filename_len + 1);
                 unzip_read(src_fd, dst_fn, zip_header.formated.filename_len);
-                dst_fn[zip_header.formated.filename_len] = 0;
 
                 /* Skip extra header bytes */
                 unzip_skip(src_fd, zip_header.formated.extra_len);
diff --git a/networking/telnetd.c b/networking/telnetd.c
index 5a11ffb8c..f2038395f 100644
--- a/networking/telnetd.c
+++ b/networking/telnetd.c
@@ -3,7 +3,7 @@
  * Simple telnet server
  * Bjorn Wesen, Axis Communications AB (bjornw@axis.com)
  *
- * Licensed under GPL, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  *
  * ---------------------------------------------------------------------------
  * (C) Copyright 2000, Axis Communications AB, LUND, SWEDEN
@@ -260,21 +260,17 @@ make_new_session(int sockfd)
         struct termios termbuf;
         int pty, pid;
         char tty_name[32];
-        struct tsession *ts = malloc(sizeof(struct tsession) + BUFSIZE * 2);
+        struct tsession *ts = xzalloc(sizeof(struct tsession) + BUFSIZE * 2);
 
         ts->buf1 = (char *)(&ts[1]);
         ts->buf2 = ts->buf1 + BUFSIZE;
 
 #ifdef CONFIG_FEATURE_TELNETD_INETD
-        ts->sockfd_read = 0;
         ts->sockfd_write = 1;
 #else /* CONFIG_FEATURE_TELNETD_INETD */
         ts->sockfd = sockfd;
 #endif /* CONFIG_FEATURE_TELNETD_INETD */
 
-        ts->rdidx1 = ts->wridx1 = ts->size1 = 0;
-        ts->rdidx2 = ts->wridx2 = ts->size2 = 0;
-
         /* Got a new connection, set up a tty and spawn a shell.  */
 
         pty = getpty(tty_name);