1 files changed, 63 insertions, 0 deletions
diff --git a/src/skaembutils/s6-dumpenv.c b/src/skaembutils/s6-dumpenv.c
new file mode 100644
index 0000000..4bed6c8
--- /dev/null
+++ b/src/skaembutils/s6-dumpenv.c
@@ -0,0 +1,63 @@
+/* ISC license. */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <skalibs/uint.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/djbunix.h>
+
+#define USAGE "s6-dumpenv [ -m mode ] envdir"
+#define dieusage() strerr_dieusage(100, USAGE)
+
+int main (int argc, char const *const *argv, char const *const *envp)
+{
+  mode_t mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH ;
+  unsigned int dirlen ;
+
+  PROG = "s6-printenv" ;
+  {
+    subgetopt_t l = SUBGETOPT_ZERO ;
+    for (;;)
+    {
+      register int opt = subgetopt_r(argc, argv, "m:", &l) ;
+      if (opt == -1) break ;
+      switch (opt)
+      {
+        case 'm' : if (!uint0_oscan(l.arg, &mode)) dieusage() ; break ;
+        default : dieusage() ;
+      }
+    }
+    argc -= l.ind ; argv += l.ind ;
+  }
+  if (!argc) dieusage() ;
+
+  if (mkdir(argv[0], mode) < 0)
+  {
+    struct stat st ;
+    if (errno != EEXIST) strerr_diefu2sys(111, "mkdir ", argv[0]) ;
+    if (stat(argv[0], &st) < 0)
+      strerr_diefu2sys(111, "stat ", argv[0]) ;
+    if (!S_ISDIR(st.st_mode))
+    {
+      errno = ENOTDIR ;
+      strerr_diefu2sys(111, "mkdir ", argv[0]) ;
+    }
+  }
+  dirlen = str_len(argv[0]) ;
+    
+  for (; *envp ; envp++)
+  {
+    unsigned int varlen = str_chr(*envp, '=') ;
+    char fn[dirlen + varlen + 2] ;
+    byte_copy(fn, dirlen, argv[0]) ;
+    fn[dirlen] = '/' ;
+    byte_copy(fn + dirlen + 1, varlen, *envp) ;
+    fn[dirlen + 1 + varlen] = 0 ;
+    if (!openwritenclose_suffix(fn, *envp + varlen + 1, str_len(*envp + varlen + 1), "=.tmp"))
+      strerr_diefu2sys(111, "open ", fn) ;
+  }
+  return 0 ;
+}