diff options
| -rw-r--r-- | libc/gen/pw_scan.c | 16 | ||||
| -rw-r--r-- | libc/gen/pw_scan.h | 1 | ||||
| -rw-r--r-- | libutil/libutil.h | 1 | ||||
| -rw-r--r-- | libutil/pw_util.c | 11 |
4 files changed, 28 insertions, 1 deletions
diff --git a/libc/gen/pw_scan.c b/libc/gen/pw_scan.c index a7dbdf2..619092d 100644 --- a/libc/gen/pw_scan.c +++ b/libc/gen/pw_scan.c @@ -65,6 +65,22 @@ __FBSDID("$FreeBSD$"); */ static int pw_big_ids_warning = 0; +void +__pw_initpwd(struct passwd *pwd) +{ + static char nul[] = ""; + + memset(pwd, 0, sizeof(*pwd)); + pwd->pw_uid = (uid_t)-1; /* Considered least likely to lead to */ + pwd->pw_gid = (gid_t)-1; /* a security issue. */ + pwd->pw_name = nul; + pwd->pw_passwd = nul; + pwd->pw_class = nul; + pwd->pw_gecos = nul; + pwd->pw_dir = nul; + pwd->pw_shell = nul; +} + int __pw_scan(char *bp, struct passwd *pw, int flags) { diff --git a/libc/gen/pw_scan.h b/libc/gen/pw_scan.h index 44ff818..b567036 100644 --- a/libc/gen/pw_scan.h +++ b/libc/gen/pw_scan.h @@ -35,4 +35,5 @@ #define _PWSCAN_MASTER 0x01 #define _PWSCAN_WARN 0x02 +extern void __pw_initpwd(struct passwd *); extern int __pw_scan(char *, struct passwd *, int); diff --git a/libutil/libutil.h b/libutil/libutil.h index c79eaac..2ac5e97 100644 --- a/libutil/libutil.h +++ b/libutil/libutil.h @@ -155,6 +155,7 @@ int pw_edit(int _notsetuid); int pw_equal(const struct passwd *_pw1, const struct passwd *_pw2); void pw_fini(void); int pw_init(const char *_dir, const char *_master); +void pw_initpwd(struct passwd *_pw); char *pw_make(const struct passwd *_pw); char *pw_make_v7(const struct passwd *_pw); int pw_mkdb(const char *_user); diff --git a/libutil/pw_util.c b/libutil/pw_util.c index 112b6d8..1659c97 100644 --- a/libutil/pw_util.c +++ b/libutil/pw_util.c @@ -652,8 +652,16 @@ pw_dup(const struct passwd *pw) #include "pw_scan.h" /* - * Wrapper around an internal libc function + * Wrapper around some internal libc functions. */ + +void +pw_initpwd(struct passwd *pw) +{ + + __pw_initpwd(pw); +} + struct passwd * pw_scan(const char *line, int flags) { @@ -662,6 +670,7 @@ pw_scan(const char *line, int flags) if ((bp = strdup(line)) == NULL) return (NULL); + __pw_initpwd(&pw); if (!__pw_scan(bp, &pw, flags)) { free(bp); return (NULL); |