initial commit with rc for skalibs-2.0.0.0

1 files changed, 31 insertions, 0 deletions

diff --git a/src/libstddjb/slurp.c b/src/libstddjb/slurp.c
new file mode 100644
index 0000000..553b29e
--- /dev/null
+++ b/src/libstddjb/slurp.c
@@ -0,0 +1,31 @@
+/* ISC license. */
+
+#include <skalibs/allreadwrite.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/djbunix.h>
+
+#define N 4096
+
+int slurp (stralloc *sa, int fd)
+{
+  register unsigned int salen = sa->len ;
+  for (;;)
+  {
+    int r ;
+    if (!stralloc_readyplus(sa, N)) break ;
+    r = fd_read(fd, sa->s + sa->len, N) ;
+    switch (r)
+    {
+      case -1: goto err ;
+      case 0:
+        stralloc_shrink(sa) ;
+        return 1 ;
+      default:
+        sa->len += r ;
+    }
+  }
+err:
+  sa->len = salen ;
+  stralloc_shrink(sa) ;
+  return 0 ;
+}