From 11af232b19155c76002b5ca1f2b0e89d75699d3a Mon Sep 17 00:00:00 2001
From: "graham.gower" <graham.gower@e8e0d7a0-c8d9-11dd-a880-a1081c7ac358>
Date: Wed, 4 Nov 2009 03:14:59 +0000
Subject: [PATCH] s/strdup/xstrdup/ - check memory allocations for failure.

git-svn-id: http://opkg.googlecode.com/svn/trunk@255 e8e0d7a0-c8d9-11dd-a880-a1081c7ac358
---
 libopkg/args.c          | 13 +++++++------
 libopkg/hash_table.c    |  3 ++-
 libopkg/opkg.c          | 32 ++++++++++++++------------------
 libopkg/opkg_cmd.c      | 11 ++---------
 libopkg/opkg_conf.c     | 15 ++++++++-------
 libopkg/opkg_download.c |  9 +++++----
 libopkg/opkg_install.c  |  3 ++-
 libopkg/opkg_utils.c    | 12 +++---------
 libopkg/pkg.c           | 16 ++++++++--------
 libopkg/pkg_depends.c   |  3 ++-
 libopkg/pkg_dest.c      |  5 +++--
 libopkg/pkg_hash.c      |  5 +++--
 libopkg/pkg_parse.c     |  3 ++-
 libopkg/str_list.c      |  6 +++---
 14 files changed, 64 insertions(+), 72 deletions(-)

diff --git a/libopkg/args.c b/libopkg/args.c
index bbe2e4d..b7aafcd 100644
--- a/libopkg/args.c
+++ b/libopkg/args.c
@@ -25,6 +25,7 @@
 #include "config.h"
 #include "args.h"
 #include "sprintf_alloc.h"
+#include "libbb/libbb.h"
 
 static void print_version(void);
 
@@ -163,23 +164,23 @@ int args_parse(args_t *args, int argc, char *argv[])
 	       args->query_all = 1;
 	       break;
 	  case 'd':
-	       args->dest = strdup (optarg);
+	       args->dest = xstrdup(optarg);
 	       break;
 	  case 'f':
 	       free(args->conf_file);
-	       args->conf_file = strdup(optarg);
+	       args->conf_file = xstrdup(optarg);
 	       break;
 	  case 'o':
-	       args->offline_root = strdup (optarg);
+	       args->offline_root = xstrdup(optarg);
 	       break;
 	  case 'p':
-	       args->offline_root_path = strdup (optarg);
+	       args->offline_root_path = xstrdup(optarg);
 	       break;
 	  case 'n':
 	       args->noaction = 1;
 	       break;
 	  case 't':
-	       args->tmp_dir = strdup(optarg);
+	       args->tmp_dir = xstrdup(optarg);
 	       break;
 	  case 'v':
 	       print_version();
@@ -196,7 +197,7 @@ int args_parse(args_t *args, int argc, char *argv[])
 	       break;
 	  case ARGS_OPT_CACHE:
 	       free(args->cache);
-	       args->cache = strdup(optarg);
+	       args->cache = xstrdup(optarg);
 	       break;
 	  case ARGS_OPT_FORCE_DEFAULTS:
 	       args->force_defaults = 1;
diff --git a/libopkg/hash_table.c b/libopkg/hash_table.c
index 713ecff..6de9085 100644
--- a/libopkg/hash_table.c
+++ b/libopkg/hash_table.c
@@ -21,6 +21,7 @@
 #include <string.h>
 #include "hash_table.h"
 #include "opkg_message.h"
+#include "libbb/libbb.h"
 
 
 static int hash_index(hash_table_t *hash, const char *pkg_name);
@@ -155,7 +156,7 @@ int hash_table_insert(hash_table_t *hash, const char *key, void *value)
 	  }
      }
      hash->n_elements++;
-     hash_entry->key = strdup(key);
+     hash_entry->key = xstrdup(key);
      hash_entry->data = value;
 
      return 0;
diff --git a/libopkg/opkg.c b/libopkg/opkg.c
index d6b6658..9cbbe90 100644
--- a/libopkg/opkg.c
+++ b/libopkg/opkg.c
@@ -60,18 +60,14 @@ pkg_t_to_opkg_package_t (pkg_t *old)
 
   new = opkg_package_new ();
 
-#define sstrdup(x) (x) ? strdup (x) : NULL;
-
-  new->name = sstrdup (old->name);
+  new->name = xstrdup(old->name);
   new->version = pkg_version_str_alloc (old);
-  new->architecture = sstrdup (old->architecture);
+  new->architecture = xstrdup(old->architecture);
   if (old->src)
-    new->repository = sstrdup (old->src->name);
-  new->description = sstrdup (old->description);
-  new->tags = sstrdup (old->tags);
-  new->url = sstrdup (old->url);
-
-#undef sstrdup
+    new->repository = xstrdup(old->src->name);
+  new->description = xstrdup(old->description);
+  new->tags = xstrdup(old->tags);
+  new->url = xstrdup(old->url);
 
   new->size = (old->size) ? atoi (old->size) : 0;
   new->installed = (old->state_status == SS_INSTALLED);
@@ -261,25 +257,25 @@ opkg_re_read_config_files (opkg_t *opkg)
   if (c->offline_root)
   {
     if (a->offline_root) free (a->offline_root);
-    a->offline_root = strdup (c->offline_root);
+    a->offline_root = xstrdup(c->offline_root);
   }
 
   if (c->offline_root_pre_script_cmd)
   {
     if (a->offline_root_pre_script_cmd) free (a->offline_root_pre_script_cmd);
-    a->offline_root_pre_script_cmd = strdup (c->offline_root_pre_script_cmd);
+    a->offline_root_pre_script_cmd = xstrdup(c->offline_root_pre_script_cmd);
   }
 
   if (c->offline_root_post_script_cmd)
   {
     if (a->offline_root_post_script_cmd) free (a->offline_root_post_script_cmd);
-    a->offline_root_post_script_cmd = strdup (c->offline_root_post_script_cmd);
+    a->offline_root_post_script_cmd = xstrdup(c->offline_root_post_script_cmd);
   }
 
   if (c->cache) {
     if (a->cache)
 	free (a->cache);
-    a->cache = strdup(c->cache);
+    a->cache = xstrdup(c->cache);
   }
 
   /* throw away old opkg_conf and start again */
@@ -328,7 +324,7 @@ opkg_get_option (opkg_t *opkg, char *option, void **value)
     return;
 
   case OPKG_OPT_TYPE_STRING:
-    *((char **)value) = strdup (options[i].value);
+    *((char **)value) = xstrdup(options[i].value);
     return;
   }
 
@@ -380,7 +376,7 @@ opkg_set_option (opkg_t *opkg, char *option, void *value)
     return;
 
   case OPKG_OPT_TYPE_STRING:
-    *((char **)options[i].value) = strdup (value);
+    *((char **)options[i].value) = xstrdup(value);
     return;
   }
 
@@ -773,7 +769,7 @@ opkg_update_package_lists (opkg_t *opkg, opkg_progress_callback_t progress_callb
     }
   }
 
-  tmp = strdup ("/tmp/opkg.XXXXXX");
+  tmp = xstrdup("/tmp/opkg.XXXXXX");
 
   if (mkdtemp (tmp) == NULL)
   {
@@ -1051,7 +1047,7 @@ int opkg_repository_accessibility_check(opkg_t *opkg)
 		      (index(strstr(((pkg_src_t *)iter->data)->value, "://") + 3, '/') - ((pkg_src_t *)iter->data)->value)*sizeof(char));
 
     else
-      stmp = strdup(((pkg_src_t *)iter->data)->value);
+      stmp = xstrdup(((pkg_src_t *)iter->data)->value);
 
     for (iter1 = str_list_first(src); iter1; iter1 = str_list_next(src, iter1))
     {
diff --git a/libopkg/opkg_cmd.c b/libopkg/opkg_cmd.c
index e587680..a3f18f8 100644
--- a/libopkg/opkg_cmd.c
+++ b/libopkg/opkg_cmd.c
@@ -195,7 +195,7 @@ static int opkg_update_cmd(opkg_conf_t *conf, int argc, char **argv)
      failures = 0;
 
 
-     tmp = strdup ("/tmp/opkg.XXXXXX");
+     tmp = xstrdup("/tmp/opkg.XXXXXX");
 
      if (mkdtemp (tmp) == NULL) {
 	 perror ("mkdtemp");
@@ -303,18 +303,11 @@ typedef struct opkg_intercept *opkg_intercept_t;
 static opkg_intercept_t opkg_prep_intercepts(opkg_conf_t *conf)
 {
     opkg_intercept_t ctx;
-    char *oldpath;
     char *newpath;
     int gen;
 
     ctx = calloc (1, sizeof (*ctx));
-    oldpath = getenv ("PATH");
-    if (oldpath) {
-        ctx->oldpath = strdup (oldpath);
-    } else {
-        ctx->oldpath = 0;
-    }
-
+    ctx->oldpath = xstrdup(getenv("PATH"));
 
     sprintf_alloc (&newpath, "%s/opkg/intercept:%s", DATADIR, ctx->oldpath);
     setenv ("PATH", newpath, 1);
diff --git a/libopkg/opkg_conf.c b/libopkg/opkg_conf.c
index 4ea15d6..57c670e 100644
--- a/libopkg/opkg_conf.c
+++ b/libopkg/opkg_conf.c
@@ -26,13 +26,14 @@
 #include "file_util.h"
 #include "str_util.h"
 #include "xsystem.h"
-#include <glob.h>
 #include "opkg_defines.h"
+#include "libbb/libbb.h"
 
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <errno.h>
+#include <glob.h>
 
 extern char *conf_file_dir;
 
@@ -109,7 +110,7 @@ static void opkg_conf_override_string(char **conf_str, char *arg_str)
 	  if (*conf_str) {
 	       free(*conf_str);
 	  }
-	  *conf_str = strdup(arg_str);
+	  *conf_str = xstrdup(arg_str);
      }
 }
 
@@ -213,8 +214,8 @@ int opkg_conf_init(opkg_conf_t *conf, const args_t *args)
      pending_dir = calloc(1, strlen(lists_dir)+strlen("/pending")+5);
      snprintf(pending_dir,strlen(lists_dir)+strlen("/pending") ,"%s%s",lists_dir,"/pending");
 
-     conf->lists_dir = strdup(lists_dir);
-     conf->pending_dir = strdup(pending_dir);
+     conf->lists_dir = xstrdup(lists_dir);
+     conf->pending_dir = xstrdup(pending_dir);
 
      if (args->offline_root) 
 	  sprintf_alloc(&etc_opkg_conf_pattern, "%s/etc/opkg/*.conf", args->offline_root);
@@ -486,7 +487,7 @@ static int set_and_load_pkg_dest_list(opkg_conf_t *conf, nv_pair_list_t *nv_pair
 	  if (conf->offline_root) {
 	       sprintf_alloc(&root_dir, "%s%s", conf->offline_root, nv_pair->value);
 	  } else {
-	       root_dir = strdup(nv_pair->value);
+	       root_dir = xstrdup(nv_pair->value);
 	  }
 	  dest = pkg_dest_list_append(&conf->pkg_dest_list, nv_pair->name, root_dir, lists_dir);
 	  free(root_dir);
@@ -629,7 +630,7 @@ static int opkg_conf_parse_file(opkg_conf_t *conf, const char *filename,
 	       opkg_message(conf, OPKG_INFO, "supported arch %s priority (%s)\n", name, value);
 	       if (!value) {
 		    opkg_message(conf, OPKG_NOTICE, "defaulting architecture %s priority to 10\n", name);
-		    value = strdup("10");
+		    value = xstrdup("10");
 	       }
 	       nv_pair_list_append(&conf->arch_list, name, value);
 	  } else {
@@ -678,7 +679,7 @@ static int opkg_conf_set_option(const opkg_option_t *options,
 		    }		    
 	       case OPKG_OPT_TYPE_STRING:
 		    if (value) {
-			 *((char **)options[i].value) = strdup(value);
+			 *((char **)options[i].value) = xstrdup(value);
 			 return 0;
 		    } else {
 			 printf("%s: Option %s need an argument\n",
diff --git a/libopkg/opkg_download.c b/libopkg/opkg_download.c
index 2ee97bf..77dc8e4 100644
--- a/libopkg/opkg_download.c
+++ b/libopkg/opkg_download.c
@@ -47,6 +47,7 @@
 #include "file_util.h"
 #include "str_util.h"
 #include "opkg_defines.h"
+#include "libbb/libbb.h"
 
 #if defined(HAVE_OPENSSL) || defined(HAVE_SSLCURL)
 static void openssl_init(void);
@@ -71,7 +72,7 @@ int opkg_download(opkg_conf_t *conf, const char *src,
 {
     int err = 0;
 
-    char *src_basec = strdup(src);
+    char *src_basec = xstrdup(src);
     char *src_base = basename(src_basec);
     char *tmp_file_location;
 
@@ -177,7 +178,7 @@ int opkg_download(opkg_conf_t *conf, const char *src,
 static int opkg_download_cache(opkg_conf_t *conf, const char *src,
   const char *dest_file_name, curl_progress_func cb, void *data)
 {
-    char *cache_name = strdup(src);
+    char *cache_name = xstrdup(src);
     char *cache_location, *p;
     int err = 0;
 
@@ -260,7 +261,7 @@ int opkg_prepare_url_for_install(opkg_conf_t *conf, const char *url, char **name
      if (str_starts_with(url, "http://")
 	 || str_starts_with(url, "ftp://")) {
 	  char *tmp_file;
-	  char *file_basec = strdup(url);
+	  char *file_basec = xstrdup(url);
 	  char *file_base = basename(file_basec);
 
 	  sprintf_alloc(&tmp_file, "%s/%s", conf->tmp_dir, file_base);
@@ -305,7 +306,7 @@ int opkg_prepare_url_for_install(opkg_conf_t *conf, const char *url, char **name
         return 0;
      }
      if (namep) {
-	  *namep = strdup(pkg->name);
+	  *namep = xstrdup(pkg->name);
      }
      return 0;
 }
diff --git a/libopkg/opkg_install.c b/libopkg/opkg_install.c
index e726867..2d5bb4e 100644
--- a/libopkg/opkg_install.c
+++ b/libopkg/opkg_install.c
@@ -44,6 +44,7 @@ typedef void (*sighandler_t)(int);
 #include "str_util.h"
 #include "xsystem.h"
 #include "user.h"
+#include "libbb/libbb.h"
 
 static int verify_pkg_installable(opkg_conf_t *conf, pkg_t *pkg);
 static int unpack_pkg_control_files(opkg_conf_t *conf, pkg_t *pkg);
@@ -1135,7 +1136,7 @@ static int preinst_configure(opkg_conf_t *conf, pkg_t *pkg, pkg_t *old_pkg)
 	  sprintf_alloc(&preinst_args, "install %s", pkg_version);
 	  free(pkg_version);
      } else {
-	  preinst_args = strdup("install");
+	  preinst_args = xstrdup("install");
      }
 
      err = pkg_run_script(conf, pkg, "preinst", preinst_args);
diff --git a/libopkg/opkg_utils.c b/libopkg/opkg_utils.c
index 92291c4..ccc3496 100644
--- a/libopkg/opkg_utils.c
+++ b/libopkg/opkg_utils.c
@@ -23,6 +23,7 @@
 #include "opkg_utils.h"
 #include "pkg.h"
 #include "pkg_hash.h"
+#include "libbb/libbb.h"
 
 void print_pkg_status(pkg_t * pkg, FILE * file);
 
@@ -87,7 +88,7 @@ char **read_raw_pkgs_from_stream(FILE *fp)
 	  if((scout = strchr(buf, '\n')))
 	       *scout = '\0';
 
-	  raw[count++] = strdup(buf);
+	  raw[count++] = xstrdup(buf);
      }
     
      raw = realloc(raw, (count + 1) * sizeof(char *));
@@ -163,14 +164,7 @@ void push_error_list(char * msg)
 		return;
 	}
 
-	e->errmsg = strdup(msg);
-	if (e->errmsg == NULL) {
-		fprintf(stderr, "%s: strdup: %s\n",
-				__FUNCTION__, strerror(errno));
-		free(e);
-		return;
-	}
-
+	e->errmsg = xstrdup(msg);
 	e->next = NULL;
 
 	if (error_list_head) {
diff --git a/libopkg/pkg.c b/libopkg/pkg.c
index e3e6c04..237db44 100644
--- a/libopkg/pkg.c
+++ b/libopkg/pkg.c
@@ -291,7 +291,7 @@ int pkg_init_from_file(pkg_t *pkg, const char *filename)
      err = pkg_init(pkg);
      if (err) { return err; }
 
-     pkg->local_filename = strdup(filename);
+     pkg->local_filename = xstrdup(filename);
     
      control_file = tmpfile();
      err = pkg_extract_control_file_to_stream(pkg, control_file);
@@ -957,13 +957,13 @@ char *pkg_version_str_alloc(pkg_t *pkg)
      if (pkg->epoch) {
 	  sprintf_alloc(&epoch_str, "%d:", pkg->epoch);
      } else {
-	  epoch_str = strdup("");
+	  epoch_str = xstrdup("");
      }
 
      if (pkg->revision && strlen(pkg->revision)) {
 	  sprintf_alloc(&revision_str, "-%s", pkg->revision);
      } else {
-	  revision_str = strdup("");
+	  revision_str = xstrdup("");
      }
 
 
@@ -1224,13 +1224,13 @@ char *pkg_state_want_to_str(pkg_state_want_t sw)
 
      for (i=0; i < ARRAY_SIZE(pkg_state_want_map); i++) {
 	  if (pkg_state_want_map[i].value == sw) {
-	       return strdup(pkg_state_want_map[i].str);
+	       return xstrdup(pkg_state_want_map[i].str);
 	  }
      }
 
      fprintf(stderr, "%s: ERROR: Illegal value for state_want: %d\n",
 	     __FUNCTION__, sw);
-     return strdup("<STATE_WANT_UNKNOWN>");
+     return xstrdup("<STATE_WANT_UNKNOWN>");
 }
 
 pkg_state_want_t pkg_state_want_from_str(char *str)
@@ -1258,7 +1258,7 @@ char *pkg_state_flag_to_str(pkg_state_flag_t sf)
      sf &= SF_NONVOLATILE_FLAGS;
 
      if (sf == 0) {
-	  return strdup("ok");
+	  return xstrdup("ok");
      } else {
 
 	  for (i=0; i < ARRAY_SIZE(pkg_state_flag_map); i++) {
@@ -1315,13 +1315,13 @@ char *pkg_state_status_to_str(pkg_state_status_t ss)
 
      for (i=0; i < ARRAY_SIZE(pkg_state_status_map); i++) {
 	  if (pkg_state_status_map[i].value == ss) {
-	       return strdup(pkg_state_status_map[i].str);
+	       return xstrdup(pkg_state_status_map[i].str);
 	  }
      }
 
      fprintf(stderr, "%s: ERROR: Illegal value for state_status: %d\n",
 	     __FUNCTION__, ss);
-     return strdup("<STATE_STATUS_UNKNOWN>");
+     return xstrdup("<STATE_STATUS_UNKNOWN>");
 }
 
 pkg_state_status_t pkg_state_status_from_str(const char *str)
diff --git a/libopkg/pkg_depends.c b/libopkg/pkg_depends.c
index e5c50c9..6ce9fdd 100644
--- a/libopkg/pkg_depends.c
+++ b/libopkg/pkg_depends.c
@@ -25,6 +25,7 @@
 #include "opkg_message.h"
 #include "pkg_parse.h"
 #include "hash_table.h"
+#include "libbb/libbb.h"
 
 static int parseDepends(compound_depend_t *compound_depend, hash_table_t * hash, char * depend_str);
 static depend_t * depend_init(void);
@@ -609,7 +610,7 @@ char ** add_unresolved_dep(pkg_t * pkg, char ** the_lost, int ref_ndx)
        fprintf(stderr, "%s: out of memory\n", __FUNCTION__);
        return NULL;
     }
-    resized[count - 1] = strdup(depend_str);
+    resized[count - 1] = xstrdup(depend_str);
     resized[count] = NULL;
     
     return resized;
diff --git a/libopkg/pkg_dest.c b/libopkg/pkg_dest.c
index b5cfe23..b1b502a 100644
--- a/libopkg/pkg_dest.c
+++ b/libopkg/pkg_dest.c
@@ -24,14 +24,15 @@
 #include "opkg_conf.h"
 #include "opkg_cmd.h"
 #include "opkg_defines.h"
+#include "libbb/libbb.h"
 
 int pkg_dest_init(pkg_dest_t *dest, const char *name, const char *root_dir,const char * lists_dir)
 {
-    dest->name = strdup(name);
+    dest->name = xstrdup(name);
 
     /* Guarantee that dest->root_dir ends with a '/' */
     if (str_ends_with(root_dir, "/")) {
-	dest->root_dir = strdup(root_dir);
+	dest->root_dir = xstrdup(root_dir);
     } else {
 	sprintf_alloc(&dest->root_dir, "%s/", root_dir);
     }
diff --git a/libopkg/pkg_hash.c b/libopkg/pkg_hash.c
index dc9c3d0..978ccb2 100644
--- a/libopkg/pkg_hash.c
+++ b/libopkg/pkg_hash.c
@@ -28,6 +28,7 @@
 #include "pkg_hash.h"
 #include "pkg_parse.h"
 #include "opkg_utils.h"
+#include "libbb/libbb.h"
 
 static abstract_pkg_t * add_new_abstract_pkg_by_name(hash_table_t * hash, const char * pkg_name);
 
@@ -106,7 +107,7 @@ static char *pkg_get_default_arch(opkg_conf_t *conf)
 	  }
      }
 
-     return strdup(def_arch);
+     return xstrdup(def_arch);
 }
 
 int pkg_hash_add_from_file(opkg_conf_t *conf, const char *file_name,
@@ -610,7 +611,7 @@ static abstract_pkg_t * add_new_abstract_pkg_by_name(hash_table_t * hash, const
   ab_pkg = abstract_pkg_new();
   if (ab_pkg == NULL) { return NULL; }
 
-  ab_pkg->name = strdup(pkg_name);
+  ab_pkg->name = xstrdup(pkg_name);
   hash_table_insert(hash, pkg_name, ab_pkg);
 
   return ab_pkg;
diff --git a/libopkg/pkg_parse.c b/libopkg/pkg_parse.c
index a588e18..5389479 100644
--- a/libopkg/pkg_parse.c
+++ b/libopkg/pkg_parse.c
@@ -22,6 +22,7 @@
 #include "pkg.h"
 #include "opkg_utils.h"
 #include "pkg_parse.h"
+#include "libbb/libbb.h"
 
 int isGenericFieldType(char * type, char * line)
 {
@@ -378,7 +379,7 @@ out:;
     {
        pkg->provides_count = 1;
        pkg->provides_str = calloc (1, sizeof (char*));
-       pkg->provides_str[0] = strdup ("opkg_internal_use_only");
+       pkg->provides_str[0] = xstrdup("opkg_internal_use_only");
     }
 
     if (pkg->name) {
diff --git a/libopkg/str_list.c b/libopkg/str_list.c
index f4cc136..be42967 100644
--- a/libopkg/str_list.c
+++ b/libopkg/str_list.c
@@ -16,8 +16,8 @@
 */
 
 #include "includes.h"
-
 #include "str_list.h"
+#include "libbb/libbb.h"
 
 int str_list_elt_init(str_list_elt_t *elt, char *data)
 {
@@ -60,12 +60,12 @@ void str_list_deinit(str_list_t *list)
 
 int str_list_append(str_list_t *list, char *data)
 {
-    return void_list_append((void_list_t *) list, strdup(data));
+    return void_list_append((void_list_t *) list, xstrdup(data));
 }
 
 int str_list_push(str_list_t *list, char *data)
 {
-    return void_list_push((void_list_t *) list, strdup(data));
+    return void_list_push((void_list_t *) list, xstrdup(data));
 }
 
 str_list_elt_t *str_list_pop(str_list_t *list)
-- 
2.25.1