Use mkdtemp() to create a unique directory instead of a goto loop.

[oweals/opkg-lede.git] / libopkg / opkg_cmd.c

diff --git a/libopkg/opkg_cmd.c b/libopkg/opkg_cmd.c
index e5876804c82379c02a1c6522640e5ae503b91f1d..8b18ec203efb85e39492e166447d54752194590c 100644 (file)
--- 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");
@@ -303,36 +303,26 @@ 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;
-    }
-
 
-    sprintf_alloc (&newpath, "%s/opkg/intercept:%s", DATADIR, ctx->oldpath);
-    setenv ("PATH", newpath, 1);
-    free (newpath);
-    
-    gen = 0;
- retry:
-    sprintf_alloc (&ctx->statedir, "/tmp/opkg-intercept-%d-%d", getpid (), gen);
-    if (mkdir (ctx->statedir, 0770) < 0) {
-       if (errno == EEXIST) {
-           free (ctx->statedir);
-           gen++;
-           goto retry;
-       }
-       perror (ctx->statedir);
+    ctx = xcalloc(1, sizeof (*ctx));
+    ctx->oldpath = xstrdup(getenv("PATH"));
+    sprintf_alloc(&newpath, "%s/opkg/intercept:%s", DATADIR, ctx->oldpath);
+    sprintf_alloc(&ctx->statedir, "%s/opkg-intercept-XXXXXX", conf->tmp_dir);
+
+    if (mkdtemp(ctx->statedir) == NULL) {
+        fprintf(stderr, "%s: mkdtemp: %s\n", __FUNCTION__, strerror(errno));
+       free(ctx->oldpath);
+       free(ctx->statedir);
+        free(newpath);
+       free(ctx);
        return NULL;
     }
-    setenv ("OPKG_INTERCEPT_DIR", ctx->statedir, 1);
+
+    setenv("OPKG_INTERCEPT_DIR", ctx->statedir, 1);
+    setenv("PATH", newpath, 1);
+    free(newpath);
+
     return ctx;
 }
 
@@ -342,12 +332,8 @@ static int opkg_finalize_intercepts(opkg_intercept_t ctx)
     DIR *dir;
     int err = 0;
 
-    if (ctx->oldpath) {
-        setenv ("PATH", ctx->oldpath, 1);
-        free (ctx->oldpath);
-    } else {
-        unsetenv("PATH"); 
-    }
+    setenv ("PATH", ctx->oldpath, 1);
+    free (ctx->oldpath);
 
     dir = opendir (ctx->statedir);
     if (dir) {
@@ -473,7 +459,7 @@ static int opkg_recurse_pkgs_in_order(opkg_conf_t *conf, pkg_t *pkg, pkg_vec_t *
 
 static int opkg_configure_packages(opkg_conf_t *conf, char *pkg_name)
 {
-    pkg_vec_t *all, *ordered, *visited;
+     pkg_vec_t *all, *ordered, *visited;
      int i;
      pkg_t *pkg;
      opkg_intercept_t ic;
@@ -498,8 +484,9 @@ static int opkg_configure_packages(opkg_conf_t *conf, char *pkg_name)
          opkg_recurse_pkgs_in_order(conf, pkg, all, visited, ordered);
      }
 
-
      ic = opkg_prep_intercepts (conf);
+     if (ic == NULL)
+            return -1;
     
      for(i = 0; i < all->len; i++) {
          pkg = all->pkgs[i];
@@ -577,9 +564,6 @@ static int opkg_install_cmd(opkg_conf_t *conf, int argc, char **argv)
          }
      }
 
-     /* recheck to verify that all dependences are satisfied */
-     if (0) opkg_satisfy_all_dependences(conf);
-
      opkg_configure_packages(conf, NULL);
 
      write_status_files_if_changed(conf);
@@ -641,9 +625,6 @@ static int opkg_upgrade_cmd(opkg_conf_t *conf, int argc, char **argv)
          pkg_vec_free(installed);
      }
 
-     /* recheck to verify that all dependences are satisfied */
-     if (0) opkg_satisfy_all_dependences(conf);
-
      opkg_configure_packages(conf, NULL);
 
      write_status_files_if_changed(conf);
@@ -886,7 +867,7 @@ static int opkg_remove_cmd(opkg_conf_t *conf, int argc, char **argv)
         available = pkg_vec_alloc();
         pkg_hash_fetch_all_installed(&conf->pkg_hash, available);
         for (i=0; i < argc; i++) {
-           pkg_name = calloc(1, strlen(argv[i])+2);
+           pkg_name = xcalloc(1, strlen(argv[i])+2);
            strcpy(pkg_name,argv[i]);
            for (a=0; a < available->len; a++) {
                pkg = available->pkgs[a];