nginx 0.6.22 *) Change: now all ngx_http_perl_module methods return values copied to perl's allocated memory. *) Bugfix: if nginx was built with ngx_http_perl_module, the perl before 5.8.6 was used, and perl supported threads, then during reconfiguration the master process aborted; bug appeared in 0.5.9. Thanks to Boris Zhmurov. *) Bugfix: the ngx_http_perl_module methods may get invalid values of the regex captures. *) Bugfix: a segmentation fault occurred in worker process, if the $r->has_request_body() method was called for a request whose small request body was already received. *) Bugfix: large_client_header_buffers did not freed before going to keep-alive state. Thanks to Olexander Shtepa. *) Bugfix: the last address was missed in the $upstream_addr variable; bug appeared in 0.6.18. *) Bugfix: the "fastcgi_catch_stderr" directive did return error code; now it returns 502 code, that can be rerouted to a next server using the "fastcgi_next_upstream invalid_header" directive. *) Bugfix: a segmentation fault occurred in master process if the "fastcgi_catch_stderr" directive was used; bug appeared in 0.6.10. Thanks to Manlio Perillo.

/*
 * Copyright (C) Igor Sysoev
 */


#include <ngx_config.h>
#include <ngx_core.h>


#if (NGX_HAVE_STRERROR_R)

u_char *ngx_strerror_r(int err, u_char *errstr, size_t size)
{
    if (size == 0) {
        return 0;
    }

    errstr[0] = '\0';

    strerror_r(err, (char *) errstr, size);

    while (*errstr && size) {
        errstr++;
        size--;
    }

    return errstr;
}

#elif (NGX_HAVE_GNU_STRERROR_R)

/* Linux strerror_r() */

u_char *ngx_strerror_r(int err, u_char *errstr, size_t size)
{
    char  *str;

    if (size == 0) {
        return 0;
    }

    errstr[0] = '\0';

    str = strerror_r(err, (char *) errstr, size);

    if (str != (char *) errstr) {
        return ngx_cpystrn(errstr, (u_char *) str, size);
    }

    while (*errstr && size) {
        errstr++;
        size--;
    }

    return errstr;
}

#endif