initial commit: rc for execline-2.0.0.0

1 files changed, 78 insertions, 0 deletions

diff --git a/src/libexecline/exlsn_elglob.c b/src/libexecline/exlsn_elglob.c
new file mode 100644
index 0000000..67e939b
--- /dev/null
+++ b/src/libexecline/exlsn_elglob.c
@@ -0,0 +1,78 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <glob.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/genalloc.h>
+#include <execline/execline.h>
+#include "exlsn.h"
+
+static int elgloberrfunc (char const *s, int e)
+{
+  errno = e ;
+  strerr_warnw2sys("while globbing, error reading ", s) ;
+  return 0 ;
+}
+
+int exlsn_elglob (int argc, char const **argv, char const *const *envp, exlsn_t *info)
+{
+  glob_t pglob ;
+  subgetopt_t localopt = SUBGETOPT_ZERO ;
+  elsubst_t blah ;
+  int flags = GLOB_NOSORT | GLOB_NOCHECK ;
+  unsigned int i = 0 ;
+  int verbose = 0 ;
+  blah.var = info->vars.len ;
+  blah.value = info->values.len ;
+  for (;;)
+  {
+    register int opt = subgetopt_r(argc, argv, "vwsme0", &localopt) ;
+    if (opt < 0) break ;
+    switch (opt)
+    {
+      case 'v' : verbose = 1 ; break ;
+      case 'w' : flags |= GLOB_ERR ; break ;
+      case 's' : flags &= ~GLOB_NOSORT ; break ;
+      case 'm' : flags |= GLOB_MARK ; break ;
+      case 'e' : flags |= GLOB_NOESCAPE ; break ;
+      case '0' : flags &= ~GLOB_NOCHECK ; break ;
+      default : return -3 ;
+    }
+  }
+  argc -= localopt.ind ; argv += localopt.ind ;
+
+  if (argc < 2) return -3 ;
+  if (!*argv[0] || el_vardupl(argv[0], info->vars.s, info->vars.len)) return -2 ;
+  if (!stralloc_catb(&info->vars, argv[0], str_len(argv[0]) + 1)) return -1 ;
+
+  pglob.gl_offs = 0 ;
+  switch (glob(argv[1], flags, verbose ? &elgloberrfunc : 0, &pglob))
+  {
+    case 0 : break ;
+    case GLOB_NOMATCH:
+    {
+      pglob.gl_pathc = 0 ;
+      pglob.gl_pathv = 0 ;
+      break ;
+    }
+    default: goto err ;
+  }
+  for ( ; i < (unsigned int)pglob.gl_pathc ; i++)
+    if (!stralloc_catb(&info->values, pglob.gl_pathv[i], str_len(pglob.gl_pathv[i]) + 1))
+      goto globerr ;
+  blah.n = pglob.gl_pathc ;
+  globfree(&pglob) ;
+  if (!genalloc_append(elsubst_t, &info->data, &blah)) goto err ;
+  (void)envp ;
+  return localopt.ind + 2 ;
+
+ globerr:
+  globfree(&pglob) ;
+ err:
+  info->vars.len = blah.var ;
+  info->values.len = blah.value ;
+  return -1 ;
+}