autoconf: Checks for some library functions.

diff --git a/builtin-tar-tree.c b/builtin-tar-tree.c
index f646c5bd6e01f07e6b6046e465ff9044d20f0c8f..f2e48aae2a04822d26d255dddf36002f58f2093c 100644 (file)
--- a/builtin-tar-tree.c
+++ b/builtin-tar-tree.c
@@ -22,8 +22,10 @@ static unsigned long offset;
 static time_t archive_time;
 
 /* tries hard to write, either succeeds or dies in the attempt */
-static void reliable_write(void *buf, unsigned long size)
+static void reliable_write(const void *data, unsigned long size)
 {
+       const char *buf = data;
+
        while (size > 0) {
                long ret = xwrite(1, buf, size);
                if (ret < 0) {
@@ -51,8 +53,9 @@ static void write_if_needed(void)
  * queues up writes, so that all our write(2) calls write exactly one
  * full block; pads writes to RECORDSIZE
  */
-static void write_blocked(void *buf, unsigned long size)
+static void write_blocked(const void *data, unsigned long size)
 {
+       const char *buf = data;
        unsigned long tail;
 
        if (offset) {
@@ -230,8 +233,8 @@ static void write_entry(const unsigned char *sha1, struct strbuf *path,
        /* XXX: should we provide more meaningful info here? */
        sprintf(header.uid, "%07o", 0);
        sprintf(header.gid, "%07o", 0);
-       safe_strncpy(header.uname, "git", sizeof(header.uname));
-       safe_strncpy(header.gname, "git", sizeof(header.gname));
+       strlcpy(header.uname, "git", sizeof(header.uname));
+       strlcpy(header.gname, "git", sizeof(header.gname));
        sprintf(header.devmajor, "%07o", 0);
        sprintf(header.devminor, "%07o", 0);