Add the getcwd program

2 files changed, 25 insertions, 0 deletions

diff --git a/src/execline/deps-exe/getcwd b/src/execline/deps-exe/getcwd
new file mode 100644
index 0000000..e7187fe
--- /dev/null
+++ b/src/execline/deps-exe/getcwd
@@ -0,0 +1 @@
+-lskarnet
diff --git a/src/execline/getcwd.c b/src/execline/getcwd.c
new file mode 100644
index 0000000..116acab
--- /dev/null
+++ b/src/execline/getcwd.c
@@ -0,0 +1,24 @@
+/* ISC license. */
+
+#include <skalibs/bytestr.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/env.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/djbunix.h>
+
+#define USAGE "getcwd variable prog..."
+
+int main (int argc, char const *const *argv, char const *const *envp)
+{
+  stralloc sa = STRALLOC_ZERO ;
+  PROG = "getcwd" ;
+  if (argc < 3) strerr_dieusage(100, USAGE) ;
+  if (argv[1][str_chr(argv[1], '=')])
+    strerr_dief2x(100, "invalid variable name: ", argv[1]) ;
+  if (!stralloc_cats(&sa, argv[1]) || !stralloc_catb(&sa, "=", 1))
+    strerr_diefu1sys(111, "stralloc_catb") ;
+  if (sagetcwd(&sa) < 0) strerr_diefu1sys(111, "getcwd") ;
+  if (!stralloc_0(&sa)) strerr_diefu1sys(111, "stralloc_catb") ;
+  pathexec_r(argv + 2, envp, env_len(envp), sa.s, sa.len) ;
+  strerr_dieexec(111, argv[2]) ;
+}