Ijar: extract [] to platform_utils

zip_main.cc no longer needs <unistd.h>.
This change takes us closer to compiling ijar,
thus Bazel, with MSVC.

See https://github.com/bazelbuild/bazel/issues/2157
See https://github.com/bazelbuild/bazel/issues/2107

--
MOS_MIGRATED_REVID=140723658

1 files changed, 4 insertions, 6 deletions

diff --git a/third_party/ijar/zip_main.cc b/third_party/ijar/zip_main.cc
index 2b99c5f487..578d64c354 100644
--- a/third_party/ijar/zip_main.cc
+++ b/third_party/ijar/zip_main.cc
@@ -26,7 +26,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 
 #include <memory>
 #include <set>
@@ -161,17 +160,16 @@ void basename(const char *path, char *output, size_t output_size) {
 // Execute the extraction (or just listing if just v is provided)
 int extract(char *zipfile, char* exdir, char **files, bool verbose,
             bool extract) {
-  char cwd[PATH_MAX];
-  if (getcwd(cwd, PATH_MAX) == NULL) {
-    fprintf(stderr, "getcwd() failed: %s.\n", strerror(errno));
+  std::string cwd = get_cwd();
+  if (cwd.empty()) {
     return -1;
   }
 
   char output_root[PATH_MAX];
   if (exdir != NULL) {
-    concat_path(output_root, PATH_MAX, cwd, exdir);
+    concat_path(output_root, PATH_MAX, cwd.c_str(), exdir);
   } else {
-    strncpy(output_root, cwd, PATH_MAX);
+    strncpy(output_root, cwd.c_str(), PATH_MAX);
   }
 
   UnzipProcessor processor(output_root, files, verbose, extract);