diff options
author | Konstantin Belousov <kib@FreeBSD.org> | 2019-08-12 20:27:33 +0000 |
---|---|---|
committer | Konstantin Belousov <kib@FreeBSD.org> | 2019-08-12 20:27:33 +0000 |
commit | 6b462d2762d67c5d839020d6cc77052bbf2a18cd (patch) | |
tree | c34db7db1d9f957ee3ad8efecf57b06a29f10f68 /usr.sbin/rpc.yppasswdd | |
parent | 26b6a67b98153462d8a708461c9479e7a9b3a16d (diff) | |
download | src-6b462d2762d67c5d839020d6cc77052bbf2a18cd.tar.gz src-6b462d2762d67c5d839020d6cc77052bbf2a18cd.zip |
Notes
Diffstat (limited to 'usr.sbin/rpc.yppasswdd')
-rw-r--r-- | usr.sbin/rpc.yppasswdd/yppasswdd_server.c | 39 |
1 files changed, 27 insertions, 12 deletions
diff --git a/usr.sbin/rpc.yppasswdd/yppasswdd_server.c b/usr.sbin/rpc.yppasswdd/yppasswdd_server.c index 2e0b52d3e0d4..56c8defc3ba7 100644 --- a/usr.sbin/rpc.yppasswdd/yppasswdd_server.c +++ b/usr.sbin/rpc.yppasswdd/yppasswdd_server.c @@ -323,15 +323,16 @@ update_inplace(struct passwd *pw, char *domain) DB *dbp = NULL; DBT key = { NULL, 0 }; DBT data = { NULL, 0 }; - char pwbuf[YPMAXRECORD]; + char *pwbuf; char keybuf[20]; int i; char *ptr = NULL; static char yp_last[] = "YP_LAST_MODIFIED"; - char yplastbuf[YPMAXRECORD]; + char yplastbuf[64]; snprintf(yplastbuf, sizeof yplastbuf, "%llu", (unsigned long long)time(NULL)); + pwbuf = NULL; for (i = 0; i < 4; i++) { @@ -364,12 +365,12 @@ update_inplace(struct passwd *pw, char *domain) if (yp_get_record(domain,maps[i],&key,&data,1) != YP_TRUE) { yp_error("couldn't read %s/%s: %s", domain, maps[i], strerror(errno)); - return(1); + goto ret1; } if ((ptr = strchr(data.data, ':')) == NULL) { yp_error("no colon in passwd record?!"); - return(1); + goto ret1; } /* @@ -393,8 +394,12 @@ with the same UID - continuing"); * We're really being ultra-paranoid here. * This is generally a 'can't happen' condition. */ - snprintf(pwbuf, sizeof pwbuf, ":%d:%d:", pw->pw_uid, - pw->pw_gid); + free(pwbuf); + asprintf(&pwbuf, ":%d:%d:", pw->pw_uid, pw->pw_gid); + if (pwbuf == NULL) { + yp_error("no memory"); + goto ret1; + } if (!strstr(data.data, pwbuf)) { yp_error("warning: found entry for user %s \ in map %s@%s with wrong UID", pw->pw_name, maps[i], domain); @@ -405,24 +410,30 @@ with the same name - continuing"); } if (i < 2) { - snprintf(pwbuf, sizeof pwbuf, formats[i], + free(pwbuf); + asprintf(&pwbuf, formats[i], pw->pw_name, pw->pw_passwd, pw->pw_uid, pw->pw_gid, pw->pw_class, pw->pw_change, pw->pw_expire, pw->pw_gecos, pw->pw_dir, pw->pw_shell); } else { - snprintf(pwbuf, sizeof pwbuf, formats[i], + free(pwbuf); + asprintf(&pwbuf, formats[i], pw->pw_name, *(ptr+1) == '*' ? "*" : pw->pw_passwd, pw->pw_uid, pw->pw_gid, pw->pw_gecos, pw->pw_dir, pw->pw_shell); } + if (pwbuf == NULL) { + yp_error("no memory"); + goto ret1; + } #define FLAGS O_RDWR|O_CREAT if ((dbp = yp_open_db_rw(domain, maps[i], FLAGS)) == NULL) { yp_error("couldn't open %s/%s r/w: %s",domain, maps[i],strerror(errno)); - return(1); + goto ret1; } data.data = pwbuf; @@ -432,7 +443,7 @@ with the same name - continuing"); yp_error("failed to update record in %s/%s", domain, maps[i]); (void)(dbp->close)(dbp); - return(1); + goto ret1; } key.data = yp_last; @@ -444,13 +455,17 @@ with the same name - continuing"); yp_error("failed to update timestamp in %s/%s", domain, maps[i]); (void)(dbp->close)(dbp); - return(1); + goto ret1; } (void)(dbp->close)(dbp); } - return(0); + free(pwbuf); + return (0); +ret1: + free(pwbuf); + return (1); } int * |