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

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));
+	}
+}
+