integrate dietlibc/stdio per default for cdrom and disk only installs

1 files changed, 55 insertions, 0 deletions

diff --git a/mdk-stage1/dietlibc/lib/execvp.c b/mdk-stage1/dietlibc/lib/execvp.c
new file mode 100644
index 000000000..809252990
--- /dev/null
+++ b/mdk-stage1/dietlibc/lib/execvp.c
@@ -0,0 +1,55 @@
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <paths.h>
+#include <errno.h>
+
+extern char **environ;
+
+static int exec_shell(const char *file, char *const argv[]) {
+  int i;
+
+  for (i = 0; argv[i]; i++);
+
+  if (1) {
+    char *shell_argv[i + 1];
+    shell_argv[0] = _PATH_BSHELL;
+    shell_argv[1] = (char *) file;
+    for (; i > 1; i--)
+      shell_argv[i] = argv[i - 1];
+    return execve(_PATH_BSHELL, shell_argv, environ);
+  }
+}
+
+int execvp(const char *file, char *const argv[]) {
+  char *path=getenv("PATH");
+  char *cur,*next;
+  char buf[PATH_MAX];
+  if (strchr((char*)file,'/')) {
+    if (execve(file,argv,environ)==-1) {
+      if (errno==ENOEXEC) exec_shell(file,argv);
+      return -1;
+    }
+  }
+  if (!path) path=_PATH_DEFPATH;
+  for (cur=path; cur; cur=next) {
+    next=strchr(cur,':');
+    if (!next)
+      next=cur+strlen(cur);
+    if (next==cur) {
+      buf[0]='.';
+      cur--;
+    } else
+      memmove(buf,cur,next-cur);
+    buf[next-cur]='/';
+    memmove(&buf[next-cur+1],file,strlen(file)+1);
+    if (execve(buf,argv,environ)==-1) {
+      if (errno==ENOEXEC) return exec_shell(buf,argv);
+      if ((errno!=EACCES) && (errno!=ENOENT)) return -1;
+    }
+    if (*next==0) break;
+    next++;
+  }
+  return -1;
+}