Reads a field from a debian control (status or available) file, handles multi-line fields.

git-svn-id: svn://busybox.net/trunk/busybox@2346 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 31 insertions, 0 deletions

diff --git a/libbb/read_package_field.c b/libbb/read_package_field.c
new file mode 100644
index 000000000..4ba0bc602
--- /dev/null
+++ b/libbb/read_package_field.c
@@ -0,0 +1,31 @@
+//#include <stdio.h>
+#include <string.h>
+#include "libbb.h"
+
+/*
+ * Returns a [multi-line] package field
+ */
+extern char *read_package_field(const char *package_buffer)
+{
+        char *field = NULL;
+        int field_length = 0;   
+        int buffer_length = 0;
+
+        buffer_length = strlen(package_buffer);
+        field = xcalloc(1, buffer_length + 1);
+
+        while ((field = strchr(&package_buffer[field_length], '\n')) != NULL) {
+                field_length = buffer_length - strlen(field);
+                if (package_buffer[field_length + 1] != ' ') {
+                        break;
+                } else {
+                        field_length++;
+                }               
+        }
+        if (field_length == 0) {
+                return(NULL);
+        } else {
+                return(xstrndup(package_buffer, field_length));
+        }
+}
+