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-rw-r--r--source4/popt/findme.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/source4/popt/findme.c b/source4/popt/findme.c
new file mode 100644
index 0000000000..f2ad05bb3f
--- /dev/null
+++ b/source4/popt/findme.c
@@ -0,0 +1,46 @@
+/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
+ file accompanying popt source distributions, available from
+ ftp://ftp.redhat.com/pub/code/popt */
+
+#include "system.h"
+#include "findme.h"
+
+const char * findProgramPath(const char * argv0) {
+ char * path = getenv("PATH");
+ char * pathbuf;
+ char * start, * chptr;
+ char * buf, *local = NULL;
+
+ /* If there is a / in the argv[0], it has to be an absolute
+ path */
+ if (strchr(argv0, '/'))
+ return xstrdup(argv0);
+
+ if (!path) return NULL;
+
+ local = start = pathbuf = malloc(strlen(path) + 1);
+ buf = malloc(strlen(path) + strlen(argv0) + 2);
+ strcpy(pathbuf, path);
+
+ chptr = NULL;
+ do {
+ if ((chptr = strchr(start, ':')))
+ *chptr = '\0';
+ sprintf(buf, "%s/%s", start, argv0);
+
+ if (!access(buf, X_OK)) {
+ if (local) free(local);
+ return buf;
+ }
+
+ if (chptr)
+ start = chptr + 1;
+ else
+ start = NULL;
+ } while (start && *start);
+
+ free(buf);
+ if (local) free(local);
+
+ return NULL;
+}