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-rw-r--r--stdio-common/xbug.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/stdio-common/xbug.c b/stdio-common/xbug.c
index ec648f5566..fc60c66be9 100644
--- a/stdio-common/xbug.c
+++ b/stdio-common/xbug.c
@@ -1,10 +1,19 @@
#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
typedef struct _Buffer {
char *buff;
int room, used;
} Buffer;
+#if __STDC__ - 0
+void InitBuffer (Buffer *b);
+void AppendToBuffer (register Buffer *b, const char *str, register int len);
+void ReadFile (register Buffer *buffer, FILE *input);
+#endif
+
#define INIT_BUFFER_SIZE 10000
void InitBuffer(b)
@@ -17,7 +26,7 @@ void InitBuffer(b)
void AppendToBuffer(b, str, len)
register Buffer *b;
- char *str;
+ const char *str;
register int len;
{
while (b->used + len > b->room) {
@@ -42,20 +51,21 @@ void ReadFile(buffer, input)
AppendToBuffer(buffer, "", 1);
}
-main()
+int
+main(int argc, char *argv[])
{
char * filename = "xbug.c";
FILE *input;
Buffer buffer;
-
+
InitBuffer(&buffer);
-
+
if (!freopen (filename, "r", stdin))
fprintf(stderr, "cannot open file\n");
-
+
if (!(input = popen("/bin/cat", "r")))
fprintf(stderr, "cannot run \n");
-
+
ReadFile(&buffer, input);
pclose(input);