Initial revision

2 files changed, 107 insertions, 0 deletions

diff --git a/libshouldbeinlibc/=argz.c b/libshouldbeinlibc/=argz.c
new file mode 100644
index 00000000..68fd6f5f
--- /dev/null
+++ b/libshouldbeinlibc/=argz.c
@@ -0,0 +1,74 @@
+/* Routines for dealing with '\0' separated arg vectors.
+
+   Copyright (C) 1995 Free Software Foundation, Inc.
+
+   Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+/* ---------------------------------------------------------------- */
+
+/* Make a '\0' separated arg vector from a unix argv vector, returning it in
+   ARGZ, and the total length in LEN.  If a memory allocation error occurs,
+   ENOMEM is returned, otherwise 0.  */
+error_t
+argz_create(char **argv, char **argz, int *len)
+{
+  int tlen = 0;
+  char **argp;
+
+  for (argp = argv; *argp != NULL; argp++)
+    tlen += strlen(*argp) + 1;
+
+  *len = tlen;
+
+  if (tlen == 0)
+    *argz = NULL;
+  else
+    {
+      *argz = malloc(tlen);
+      if (*argz == NULL)
+	return ENOMEM;
+
+      while (tlen > 0)
+	{
+	  tlen -= strlen(*--argp) + 1;
+	  strcpy(*argz + tlen, *argp);
+	}
+    }
+
+  return 0;
+}
+
+/* ---------------------------------------------------------------- */
+
+/* Make '\0' separated arg vector ARGZ printable by converting all the '\0's
+   except the last into spaces.  */
+void
+argz_stringify(char *argz, int len)
+{
+  while (len > 0)
+    {
+      int part_len = strlen(argz);
+      argz += part_len;
+      len -= part_len + 1;
+      if (len > 0)
+	*argz++ = ' ';
+    }
+}
diff --git a/libshouldbeinlibc/=argz.h b/libshouldbeinlibc/=argz.h
new file mode 100644
index 00000000..f518bb1e
--- /dev/null
+++ b/libshouldbeinlibc/=argz.h
@@ -0,0 +1,33 @@
+/* Routines for dealing with '\0' separated arg vectors.
+
+   Copyright (C) 1995 Free Software Foundation, Inc.
+
+   Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#ifndef __ARGZ_H__
+#define __ARGZ_H__
+
+/* Make a '\0' separated arg vector from a unix argv vector, returning it in
+   ARGZ, and the total length in LEN.  If a memory allocation error occurs,
+   ENOMEM is returned, otherwise 0.  The result can be destroyed using free. */
+error_t argz_create(char **argv, char **argz, int *len);
+
+/* Make '\0' separated arg vector ARGZ printable by converting all the '\0's
+   except the last into spaces.  */
+void argz_stringify(char *argz, int len);
+
+#endif /* __ARGZ_H__ */