Introduce bozo_strdup and bozo_asprintf to add error checking and reduce
code duplication. Note that bozo_strdup is different that bozostrdup; the _ routines exit loging error to syslog or stderr, whereas the non _ routines send error responses to the http client.
This commit is contained in:
christos
parent
a5e9d486c8
commit
f47ab3a37e
@ -1,4 +1,4 @@
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/* $NetBSD: bozohttpd.c,v 1.71 2015/10/31 00:55:17 christos Exp $ */
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/* $NetBSD: bozohttpd.c,v 1.72 2015/12/12 18:06:58 christos Exp $ */
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/* $eterna: bozohttpd.c,v 1.178 2011/11/18 09:21:15 mrg Exp $ */
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@ -936,16 +936,14 @@ handle_redirect(bozo_httpreq_t *request,
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* eg. https:// */
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if (url == NULL) {
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if (asprintf(&urlbuf, "/%s/", request->hr_file) == -1)
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bozo_err(httpd, 1, "asprintf");
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bozo_asprintf(httpd, &urlbuf, "/%s/", request->hr_file);
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url = urlbuf;
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} else
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urlbuf = NULL;
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#ifndef NO_USER_SUPPORT
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if (request->hr_user && !absolute) {
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if (asprintf(&userbuf, "/~%s%s", request->hr_user, url) == -1)
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bozo_err(httpd, 1, "asprintf");
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bozo_asprintf(httpd, &userbuf, "/~%s%s", request->hr_user, url);
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url = userbuf;
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} else
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userbuf = NULL;
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@ -1143,9 +1141,9 @@ check_virtual(bozo_httpreq_t *request)
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debug((httpd, DEBUG_OBESE, "found it punch it"));
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request->hr_virthostname =
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bozostrdup(httpd, d->d_name);
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if (asprintf(&s, "%s/%s", httpd->virtbase,
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request->hr_virthostname) == -1)
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bozo_err(httpd, 1, "asprintf");
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bozo_asprintf(httpd, &s, "%s/%s",
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httpd->virtbase,
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request->hr_virthostname);
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break;
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}
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}
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@ -1397,8 +1395,7 @@ transform_request(bozo_httpreq_t *request, int *isindex)
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}
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if (strchr(file + 2, '/') == NULL) {
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char *userredirecturl;
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if (asprintf(&userredirecturl, "%s/", file) == -1)
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bozo_err(httpd, 1, "asprintf");
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bozo_asprintf(httpd, &userredirecturl, "%s/", file);
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handle_redirect(request, userredirecturl, 0);
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free(userredirecturl);
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return 0;
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@ -1559,8 +1556,7 @@ bozo_process_request(bozo_httpreq_t *request)
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fd = -1;
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encoding = NULL;
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if (can_gzip(request)) {
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if (asprintf(&file, "%s.gz", request->hr_file) == -1)
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bozo_err(httpd, 1, "asprintf");
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bozo_asprintf(httpd, &file, "%s.gz", request->hr_file);
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fd = open(file, O_RDONLY);
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if (fd >= 0)
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encoding = "gzip";
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@ -1794,6 +1790,32 @@ bozo_err(bozohttpd_t *httpd, int code, const char *fmt, ...)
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exit(code);
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}
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char *
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bozo_strdup(bozohttpd_t *httpd, const char *str)
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{
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char *p;
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p = strdup(str);
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if (p == NULL)
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bozo_err(httpd, EXIT_FAILURE, "strdup");
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return p;
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}
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void
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bozo_asprintf(bozohttpd_t *httpd, char **str, const char *fmt, ...)
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{
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va_list ap;
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int e;
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va_start(ap, fmt);
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e = vasprintf(str, fmt, ap);
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va_end(ap);
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if (e < 0)
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bozo_err(httpd, EXIT_FAILURE, "asprintf");
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}
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/*
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* this escapes HTML tags. returns allocated escaped
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* string if needed, or NULL on allocation failure or
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@ -1945,8 +1967,7 @@ bozo_http_error(bozohttpd_t *httpd, int code, bozo_httpreq_t *request,
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if (user_escaped == NULL)
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user_escaped = request->hr_user;
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/* expand username to ~user/ */
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if (asprintf(&user, "~%s/", user_escaped) == -1)
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bozo_err(httpd, 1, "asprintf");
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bozo_asprintf(httpd, &user, "~%s/", user_escaped);
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if (user_escaped != request->hr_user)
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free(user_escaped);
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}
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@ -2125,7 +2146,7 @@ bozomalloc(bozohttpd_t *httpd, size_t size)
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if (p == NULL) {
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(void)bozo_http_error(httpd, 500, NULL,
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"memory allocation failure");
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exit(1);
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exit(EXIT_FAILURE);
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}
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return (p);
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}
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@ -2138,8 +2159,8 @@ bozostrdup(bozohttpd_t *httpd, const char *str)
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p = strdup(str);
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if (p == NULL) {
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(void)bozo_http_error(httpd, 500, NULL,
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"memory allocation failure");
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exit(1);
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"memory allocation failure");
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exit(EXIT_FAILURE);
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}
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return (p);
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}
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@ -2218,11 +2239,11 @@ bozo_setup(bozohttpd_t *httpd, bozoprefs_t *prefs, const char *vhost,
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bozo_err(httpd, 1, "gethostname");
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httpd->virthostname[MAXHOSTNAMELEN] = '\0';
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} else {
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httpd->virthostname = strdup(vhost);
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httpd->virthostname = bozo_strdup(httpd, vhost);
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}
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httpd->slashdir = strdup(root);
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httpd->slashdir = bozo_strdup(httpd, root);
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if ((portnum = bozo_get_pref(prefs, "port number")) != NULL) {
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httpd->bindport = strdup(portnum);
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httpd->bindport = bozo_strdup(httpd, portnum);
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}
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/* go over preferences now */
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@ -2235,7 +2256,7 @@ bozo_setup(bozohttpd_t *httpd, bozoprefs_t *prefs, const char *vhost,
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httpd->logstderr = 1;
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}
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if ((cp = bozo_get_pref(prefs, "bind address")) != NULL) {
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httpd->bindaddress = strdup(cp);
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httpd->bindaddress = bozo_strdup(httpd, cp);
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}
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if ((cp = bozo_get_pref(prefs, "background")) != NULL) {
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httpd->background = atoi(cp);
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@ -2245,14 +2266,14 @@ bozo_setup(bozohttpd_t *httpd, bozoprefs_t *prefs, const char *vhost,
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httpd->foreground = 1;
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}
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if ((cp = bozo_get_pref(prefs, "pid file")) != NULL) {
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httpd->pidfile = strdup(cp);
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httpd->pidfile = bozo_strdup(httpd, cp);
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}
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if ((cp = bozo_get_pref(prefs, "unknown slash")) != NULL &&
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strcmp(cp, "true") == 0) {
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httpd->unknown_slash = 1;
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}
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if ((cp = bozo_get_pref(prefs, "virtual base")) != NULL) {
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httpd->virtbase = strdup(cp);
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httpd->virtbase = bozo_strdup(httpd, cp);
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}
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if ((cp = bozo_get_pref(prefs, "enable users")) != NULL &&
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strcmp(cp, "true") == 0) {
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@ -2275,11 +2296,12 @@ bozo_setup(bozohttpd_t *httpd, bozoprefs_t *prefs, const char *vhost,
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httpd->dir_indexing = 1;
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}
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if ((cp = bozo_get_pref(prefs, "public_html")) != NULL) {
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httpd->public_html = strdup(cp);
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httpd->public_html = bozo_strdup(httpd, cp);
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}
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httpd->server_software =
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strdup(bozo_get_pref(prefs, "server software"));
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httpd->index_html = strdup(bozo_get_pref(prefs, "index.html"));
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bozo_strdup(httpd, bozo_get_pref(prefs, "server software"));
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httpd->index_html =
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bozo_strdup(httpd, bozo_get_pref(prefs, "index.html"));
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/*
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* initialise ssl and daemon mode if necessary.
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@ -2290,9 +2312,9 @@ bozo_setup(bozohttpd_t *httpd, bozoprefs_t *prefs, const char *vhost,
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if ((username = bozo_get_pref(prefs, "username")) == NULL) {
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if ((pw = getpwuid(uid = 0)) == NULL)
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bozo_err(httpd, 1, "getpwuid(0): %s", strerror(errno));
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httpd->username = strdup(pw->pw_name);
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httpd->username = bozo_strdup(httpd, pw->pw_name);
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} else {
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httpd->username = strdup(username);
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httpd->username = bozo_strdup(httpd, username);
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if ((pw = getpwnam(httpd->username)) == NULL)
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bozo_err(httpd, 1, "getpwnam(%s): %s", httpd->username,
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strerror(errno));
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@ -2307,7 +2329,7 @@ bozo_setup(bozohttpd_t *httpd, bozoprefs_t *prefs, const char *vhost,
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* handle chroot.
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*/
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if ((chrootdir = bozo_get_pref(prefs, "chroot dir")) != NULL) {
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httpd->rootdir = strdup(chrootdir);
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httpd->rootdir = bozo_strdup(httpd, chrootdir);
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if (chdir(httpd->rootdir) == -1)
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bozo_err(httpd, 1, "chdir(%s): %s", httpd->rootdir,
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strerror(errno));
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@ -1,4 +1,4 @@
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/* $NetBSD: bozohttpd.h,v 1.39 2015/12/12 16:57:53 christos Exp $ */
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/* $NetBSD: bozohttpd.h,v 1.40 2015/12/12 18:06:58 christos Exp $ */
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/* $eterna: bozohttpd.h,v 1.39 2011/11/18 09:21:15 mrg Exp $ */
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@ -223,6 +223,10 @@ void bozo_warn(bozohttpd_t *, const char *, ...)
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void bozo_err(bozohttpd_t *, int, const char *, ...)
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BOZO_PRINTFLIKE(3, 4)
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BOZO_DEAD;
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void bozo_asprintf(bozohttpd_t *, char **, const char *, ...)
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BOZO_PRINTFLIKE(3, 4);
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char *bozo_strdup(bozohttpd_t *, const char *);
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int bozo_http_error(bozohttpd_t *, int, bozo_httpreq_t *, const char *);
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int bozo_check_special_files(bozo_httpreq_t *, const char *);
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@ -1,4 +1,4 @@
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/* $NetBSD: ssl-bozo.c,v 1.19 2015/12/12 16:57:53 christos Exp $ */
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/* $NetBSD: ssl-bozo.c,v 1.20 2015/12/12 18:06:58 christos Exp $ */
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/* $eterna: ssl-bozo.c,v 1.15 2011/11/18 09:21:15 mrg Exp $ */
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@ -302,13 +302,13 @@ bozo_ssl_set_opts(bozohttpd_t *httpd, const char *cert, const char *priv)
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{
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sslinfo_t *sslinfo = bozo_get_sslinfo(httpd);
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sslinfo->certificate_file = bozostrdup(httpd, cert);
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sslinfo->privatekey_file = bozostrdup(httpd, priv);
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sslinfo->certificate_file = bozo_strdup(httpd, cert);
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sslinfo->privatekey_file = bozo_strdup(httpd, priv);
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debug((httpd, DEBUG_NORMAL, "using cert/priv files: %s & %s",
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sslinfo->certificate_file,
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sslinfo->privatekey_file));
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if (!httpd->bindport)
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httpd->bindport = bozostrdup(httpd, "https");
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httpd->bindport = bozo_strdup(httpd, "https");
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}
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void
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@ -316,7 +316,7 @@ bozo_ssl_set_ciphers(bozohttpd_t *httpd, const char *ciphers)
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{
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sslinfo_t *sslinfo = bozo_get_sslinfo(httpd);
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sslinfo->ciphers = bozostrdup(httpd, ciphers);
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sslinfo->ciphers = bozo_strdup(httpd, ciphers);
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debug((httpd, DEBUG_NORMAL, "using ciphers: %s", sslinfo->ciphers));
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}
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