diff options
| author | Steve Langasek <steve.langasek@ubuntu.com> | 2019-01-03 16:18:43 -0800 |
|---|---|---|
| committer | Steve Langasek <steve.langasek@ubuntu.com> | 2019-01-03 17:01:52 -0800 |
| commit | 26ee21df2a5fe63f08cfae8c7d35c24bd3dd4f04 (patch) | |
| tree | e6e25c1da5974a60660c8b2108d609fae00af126 /Linux-PAM/libpam/pam_misc.c | |
| parent | a3ee6f5fc767b1b01568bce6dd31fc9ca932a8d2 (diff) | |
| parent | 9727ff2a3fa0e94a42b34a579027bacf4146d571 (diff) | |
| download | pam-26ee21df2a5fe63f08cfae8c7d35c24bd3dd4f04.tar.gz pam-26ee21df2a5fe63f08cfae8c7d35c24bd3dd4f04.tar.bz2 pam-26ee21df2a5fe63f08cfae8c7d35c24bd3dd4f04.zip | |
merge upstream version 0.99.10.0
Diffstat (limited to 'Linux-PAM/libpam/pam_misc.c')
| -rw-r--r-- | Linux-PAM/libpam/pam_misc.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Linux-PAM/libpam/pam_misc.c b/Linux-PAM/libpam/pam_misc.c index 770c9cce..574a570e 100644 --- a/Linux-PAM/libpam/pam_misc.c +++ b/Linux-PAM/libpam/pam_misc.c @@ -137,6 +137,28 @@ char *_pam_strdup(const char *x) return new; /* return the duplicate or NULL on error */ } +/* + * Safe duplication of memory buffers. "Paranoid"; don't leave + * evidence of old token around for later stack analysis. + */ + +char *_pam_memdup(const char *x, int len) +{ + register char *new=NULL; + + if (x != NULL) { + if ((new = malloc(len)) == NULL) { + len = 0; + pam_syslog(NULL, LOG_CRIT, "_pam_memdup: failed to get memory"); + } else { + memcpy (new, x, len); + } + x = NULL; + } + + return new; /* return the duplicate or NULL on error */ +} + /* Generate argv, argc from s */ /* caller must free(argv) */ |