libnss_mxshadow.c

#include <nss.h>
#include <shadow.h>
#include <errno.h>
#include <syslog.h>

#define COMMON_LOG(prio, msg, ...) (syslog(LOG_AUTH|prio, msg, ## __VA_ARGS__ ))
#include "get_shadow_line.c"
#include "common.h"

enum nss_status _nss_mxshadow_getspnam_r(const char *name, struct spwd *spwd, char *buffer, size_t buflen, int *errnop) {

    char *line _cleanup_(free_string) = NULL;

    int status = get_shadow_line((char *)name, &line);
    if (status == -1) {
        *errnop = errno;
        return NSS_STATUS_UNAVAIL;
    }
    if (line[0] == '\0') {
        errno = ENOENT;
        *errnop = errno;
        return NSS_STATUS_NOTFOUND;
    }
    struct spwd *spbufp;
    status = sgetspent_r(line, spwd, buffer, buflen, &spbufp);
    if (status == -1) {
        *errnop = errno;
        return NSS_STATUS_UNAVAIL;
    }
    return NSS_STATUS_SUCCESS;
}