From d70ee7b8a581f378d888731269b30a9d2ef43614 Mon Sep 17 00:00:00 2001
From: Stefan Petersen <spe@stacken.kth.se>
Date: Wed, 12 Aug 2009 23:19:03 +0200
Subject: [PATCH] Added function gerb_filenames_in_zip() to find files in zip.

This functions searches a zip file and returns the name of the files
in the zip archive in a GSList.
---
 src/gerb_file.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/gerb_file.h |  8 +++++++
 2 files changed, 76 insertions(+)

diff --git a/src/gerb_file.c b/src/gerb_file.c
index 0910616..d9f74a1 100644
--- a/src/gerb_file.c
+++ b/src/gerb_file.c
@@ -45,9 +45,12 @@
 #include <errno.h>
 
 #include "common.h"
+#include "unzip/unzip.h"
 #include "gerbv.h"
 #include "gerb_file.h"
 
+#define GERB_FILE_ZFILENAME_LEN_MAX 255
+
 /* DEBUG printing.  #define DEBUG 1 in config.h to use this fcn. */
 #define dprintf if(DEBUG) printf
 
@@ -369,3 +372,68 @@ gerb_find_file(char const * filename, char **paths)
     
     return complete_path;
 } /* gerb_find_file */
+
+
+
+
+/*
+ * Extract the file names in a zip archive and return them in a GSList. 
+ */
+int 
+gerb_filenames_in_zip(char *zipname, GSList **filenames)
+{
+    unzFile zfd;
+    int status;
+    int idx = 0;
+    gchar *zfilename;
+    GSList *fn = NULL;
+    
+    /* Now try to open the zip file given and determine which files are in it*/
+    zfd = unzOpen(zipname);
+    if (zfd == NULL) {
+	GERB_FATAL_ERROR("unzOpen failed on %s\n", zipname);
+	return -1;
+    }
+
+    if (unzGoToFirstFile(zfd) != UNZ_OK) {
+	GERB_FATAL_ERROR("Failed to go to first file in %s\n", zipname);
+	unzClose(zfd);
+	return -1;
+    }
+
+    /* Insert all filenames in zip to a GSList */
+    zfilename = g_malloc(GERB_FILE_ZFILENAME_LEN_MAX);
+    while (1) {
+	memset(zfilename, 0, GERB_FILE_ZFILENAME_LEN_MAX);
+	unzGetCurrentFileInfo(zfd,
+			      NULL,
+			      zfilename,
+			      255,
+			      NULL,
+			      0,
+			      NULL,
+			      0);
+	fn = g_slist_append(fn, (gpointer)g_strdup(zfilename));
+	idx++;
+	dprintf("%s():  Found file \"%s\" in the zip file\n",
+                __FUNCTION__, zfilename);
+
+	status = unzGoToNextFile(zfd);
+	if (status == UNZ_END_OF_LIST_OF_FILE) {
+	    break;
+	}
+	if (status != UNZ_OK) {
+	    GERB_FATAL_ERROR("Failed to go to next file.\n");
+	    unzClose(zfd);
+	    g_free(zfilename);
+	    return -1;
+	}
+    }
+    g_free(zfilename);
+
+    *filenames = fn;
+
+    unzClose(zfd);
+
+    return idx;
+} /* gerb_filenames_in_zip */
diff --git a/src/gerb_file.h b/src/gerb_file.h
index bab92ed..d6fb217 100644
--- a/src/gerb_file.h
+++ b/src/gerb_file.h
@@ -30,6 +30,7 @@
 #define GERB_FILE_H
 
 #include <stdio.h>
+#include <glib.h>
 
 typedef struct file {
     FILE *fd;     /* File descriptor */
@@ -61,4 +62,11 @@ const char path_separator;
  */
 char *gerb_find_file(char const * filename, char **paths);
 
+/*
+ * Extract the file names in a zip archive and return them in a GSList. 
+ * Returns how many files was found in the zip archive. Returns -1 on 
+ * error.
+ */
+int gerb_filenames_in_zip(char *zipname, GSList **filenames);
+
 #endif /* GERB_FILE_H */
-- 
2.11.4.GIT