diff options
Diffstat (limited to 'crypto/openssh/openbsd-compat/dirname.c')
| -rw-r--r-- | crypto/openssh/openbsd-compat/dirname.c | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/crypto/openssh/openbsd-compat/dirname.c b/crypto/openssh/openbsd-compat/dirname.c index 25ab34d..30fcb49 100644 --- a/crypto/openssh/openbsd-compat/dirname.c +++ b/crypto/openssh/openbsd-compat/dirname.c @@ -1,9 +1,7 @@ -/* OPENBSD ORIGINAL: lib/libc/gen/dirname.c */ - -/* $OpenBSD: dirname.c,v 1.10 2003/06/17 21:56:23 millert Exp $ */ +/* $OpenBSD: dirname.c,v 1.13 2005/08/08 08:05:33 espie Exp $ */ /* - * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com> + * Copyright (c) 1997, 2004 Todd C. Miller <Todd.Miller@courtesan.com> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -18,13 +16,11 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +/* OPENBSD ORIGINAL: lib/libc/gen/dirname.c */ + #include "includes.h" #ifndef HAVE_DIRNAME -#ifndef lint -static char rcsid[] = "$OpenBSD: dirname.c,v 1.10 2003/06/17 21:56:23 millert Exp $"; -#endif /* not lint */ - #include <errno.h> #include <string.h> #include <sys/param.h> @@ -32,16 +28,18 @@ static char rcsid[] = "$OpenBSD: dirname.c,v 1.10 2003/06/17 21:56:23 millert Ex char * dirname(const char *path) { - static char bname[MAXPATHLEN]; - register const char *endp; + static char dname[MAXPATHLEN]; + size_t len; + const char *endp; /* Empty or NULL string gets treated as "." */ if (path == NULL || *path == '\0') { - (void)strlcpy(bname, ".", sizeof bname); - return(bname); + dname[0] = '.'; + dname[1] = '\0'; + return (dname); } - /* Strip trailing slashes */ + /* Strip any trailing slashes */ endp = path + strlen(path) - 1; while (endp > path && *endp == '/') endp--; @@ -52,19 +50,23 @@ dirname(const char *path) /* Either the dir is "/" or there are no slashes */ if (endp == path) { - (void)strlcpy(bname, *endp == '/' ? "/" : ".", sizeof bname); - return(bname); + dname[0] = *endp == '/' ? '/' : '.'; + dname[1] = '\0'; + return (dname); } else { + /* Move forward past the separating slashes */ do { endp--; } while (endp > path && *endp == '/'); } - if (endp - path + 2 > sizeof(bname)) { + len = endp - path + 1; + if (len >= sizeof(dname)) { errno = ENAMETOOLONG; - return(NULL); + return (NULL); } - strlcpy(bname, path, endp - path + 2); - return(bname); + memcpy(dname, path, len); + dname[len] = '\0'; + return (dname); } #endif |
