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Diffstat (limited to 'source4/lib/popt/findme.c')
-rw-r--r--source4/lib/popt/findme.c33
1 files changed, 18 insertions, 15 deletions
diff --git a/source4/lib/popt/findme.c b/source4/lib/popt/findme.c
index 67a535ac65..a950e50018 100644
--- a/source4/lib/popt/findme.c
+++ b/source4/lib/popt/findme.c
@@ -1,47 +1,50 @@
-/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
+/** \ingroup popt
+ * \file popt/findme.c
+ */
+
+/* (C) 1998-2002 Red Hat, Inc. -- Licensing details are in the COPYING
file accompanying popt source distributions, available from
- ftp://ftp.redhat.com/pub/code/popt */
+ ftp://ftp.rpm.org/pub/rpm/dist. */
#include "system.h"
#include "findme.h"
- const char * findProgramPath(const char * argv0)
-{
+const char * findProgramPath(const char * argv0) {
char * path = getenv("PATH");
char * pathbuf;
char * start, * chptr;
- char * buf, *local = NULL;
+ char * buf;
- /* If there is a / in the argv[0], it has to be an absolute
- path */
+ if (argv0 == NULL) return NULL; /* XXX can't happen */
+ /* 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;
+ if (path == NULL) return NULL;
- local = start = pathbuf = malloc(strlen(path) + 1);
- buf = malloc(strlen(path) + strlen(argv0) + 2);
+ start = pathbuf = alloca(strlen(path) + 1);
+ buf = malloc(strlen(path) + strlen(argv0) + sizeof("/"));
+ if (buf == NULL) return NULL; /* XXX can't happen */
strcpy(pathbuf, path);
chptr = NULL;
+ /*@-branchstate@*/
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 (!access(buf, X_OK))
+ return buf;
if (chptr)
start = chptr + 1;
else
start = NULL;
} while (start && *start);
+ /*@=branchstate@*/
free(buf);
- if (local) free(local);
return NULL;
}