Time parsing cleanup.

Nuke NGX_PARSE_LARGE_TIME, it's not used since 0.6.30.  The only error
ngx_parse_time() can currently return is NGX_ERROR, check it explicitly
and make sure to cast it to appropriate type (either time_t or ngx_msec_t)
to avoid signedness warnings on platforms with unsigned time_t (notably QNX).

7 files changed, 18 insertions, 33 deletions

diff --git a/src/http/modules/ngx_http_headers_filter_module.c b/src/http/modules/ngx_http_headers_filter_module.c
index daa17623c..ff33f1f78 100644
--- a/src/http/modules/ngx_http_headers_filter_module.c
+++ b/src/http/modules/ngx_http_headers_filter_module.c
@@ -530,7 +530,7 @@ ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
     hcf->expires_time = ngx_parse_time(&value[n], 1);
 
-    if (hcf->expires_time == NGX_ERROR) {
+    if (hcf->expires_time == (time_t) NGX_ERROR) {
         return "invalid value";
     }
 
@@ -540,10 +540,6 @@ ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
         return "daily time value must be less than 24 hours";
     }
 
-    if (hcf->expires_time == NGX_PARSE_LARGE_TIME) {
-        return "value must be less than 68 years";
-    }
-
     if (minus) {
         hcf->expires_time = - hcf->expires_time;
     }
diff --git a/src/http/modules/ngx_http_log_module.c b/src/http/modules/ngx_http_log_module.c
index c55131772..bfbbe93bd 100644
--- a/src/http/modules/ngx_http_log_module.c
+++ b/src/http/modules/ngx_http_log_module.c
@@ -1249,7 +1249,7 @@ ngx_http_log_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
             s.data = value[i].data + 9;
 
             inactive = ngx_parse_time(&s, 1);
-            if (inactive < 0) {
+            if (inactive == (time_t) NGX_ERROR) {
                 goto failed;
             }
 
@@ -1272,7 +1272,7 @@ ngx_http_log_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
             s.data = value[i].data + 6;
 
             valid = ngx_parse_time(&s, 1);
-            if (valid < 0) {
+            if (valid == (time_t) NGX_ERROR) {
                 goto failed;
             }
 
diff --git a/src/http/modules/ngx_http_userid_filter_module.c b/src/http/modules/ngx_http_userid_filter_module.c
index 894e2c14e..8713dd629 100644
--- a/src/http/modules/ngx_http_userid_filter_module.c
+++ b/src/http/modules/ngx_http_userid_filter_module.c
@@ -774,14 +774,10 @@ ngx_http_userid_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     }
 
     ucf->expires = ngx_parse_time(&value[1], 1);
-    if (ucf->expires == NGX_ERROR) {
+    if (ucf->expires == (time_t) NGX_ERROR) {
         return "invalid value";
     }
 
-    if (ucf->expires == NGX_PARSE_LARGE_TIME) {
-        return "value must be less than 68 years";
-    }
-
     return NGX_CONF_OK;
 }
 
diff --git a/src/http/ngx_http_busy_lock.c b/src/http/ngx_http_busy_lock.c
index 35a03acaa..cd8e07cd6 100644
--- a/src/http/ngx_http_busy_lock.c
+++ b/src/http/ngx_http_busy_lock.c
@@ -274,7 +274,7 @@ char *ngx_http_set_busy_lock_slot(ngx_conf_t *cf, ngx_command_t *cmd,
             line.data = value[i].data + 2;
 
             bl->timeout = ngx_parse_time(&line, 1);
-            if (bl->timeout == NGX_ERROR) {
+            if (bl->timeout == (time_t) NGX_ERROR) {
                 invalid = 1;
                 break;
             }
diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index 0bfc76fe9..f82897dd5 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -3853,7 +3853,7 @@ ngx_http_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
                     s.len = p - s.data;
 
                     lsopt.tcp_keepidle = ngx_parse_time(&s, 1);
-                    if (lsopt.tcp_keepidle == NGX_ERROR) {
+                    if (lsopt.tcp_keepidle == (time_t) NGX_ERROR) {
                         goto invalid_so_keepalive;
                     }
                 }
@@ -3869,7 +3869,7 @@ ngx_http_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
                     s.len = p - s.data;
 
                     lsopt.tcp_keepintvl = ngx_parse_time(&s, 1);
-                    if (lsopt.tcp_keepintvl == NGX_ERROR) {
+                    if (lsopt.tcp_keepintvl == (time_t) NGX_ERROR) {
                         goto invalid_so_keepalive;
                     }
                 }
@@ -4516,7 +4516,7 @@ ngx_http_core_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
             s.data = value[i].data + 9;
 
             inactive = ngx_parse_time(&s, 1);
-            if (inactive < 0) {
+            if (inactive == (time_t) NGX_ERROR) {
                 goto failed;
             }
 
@@ -4603,24 +4603,16 @@ ngx_http_core_keepalive(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
         return "invalid value";
     }
 
-    if (clcf->keepalive_timeout == (ngx_msec_t) NGX_PARSE_LARGE_TIME) {
-        return "value must be less than 597 hours";
-    }
-
     if (cf->args->nelts == 2) {
         return NGX_CONF_OK;
     }
 
     clcf->keepalive_header = ngx_parse_time(&value[2], 1);
 
-    if (clcf->keepalive_header == NGX_ERROR) {
+    if (clcf->keepalive_header == (time_t) NGX_ERROR) {
         return "invalid value";
     }
 
-    if (clcf->keepalive_header == NGX_PARSE_LARGE_TIME) {
-        return "value must be less than 68 years";
-    }
-
     return NGX_CONF_OK;
 }
 
diff --git a/src/http/ngx_http_file_cache.c b/src/http/ngx_http_file_cache.c
index 4840233ed..eb1e99015 100644
--- a/src/http/ngx_http_file_cache.c
+++ b/src/http/ngx_http_file_cache.c
@@ -1597,7 +1597,8 @@ ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     time_t                  inactive;
     ssize_t                 size;
     ngx_str_t               s, name, *value;
-    ngx_int_t               loader_files, loader_sleep, loader_threshold;
+    ngx_int_t               loader_files;
+    ngx_msec_t              loader_sleep, loader_threshold;
     ngx_uint_t              i, n;
     ngx_http_file_cache_t  *cache;
 
@@ -1704,7 +1705,7 @@ ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
             s.data = value[i].data + 9;
 
             inactive = ngx_parse_time(&s, 1);
-            if (inactive < 0) {
+            if (inactive == (time_t) NGX_ERROR) {
                 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
                                    "invalid inactive value \"%V\"", &value[i]);
                 return NGX_CONF_ERROR;
@@ -1746,7 +1747,7 @@ ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
             s.data = value[i].data + 13;
 
             loader_sleep = ngx_parse_time(&s, 0);
-            if (loader_sleep < 0) {
+            if (loader_sleep == (ngx_msec_t) NGX_ERROR) {
                 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
                            "invalid loader_sleep value \"%V\"", &value[i]);
                 return NGX_CONF_ERROR;
@@ -1761,7 +1762,7 @@ ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
             s.data = value[i].data + 17;
 
             loader_threshold = ngx_parse_time(&s, 0);
-            if (loader_threshold < 0) {
+            if (loader_threshold == (ngx_msec_t) NGX_ERROR) {
                 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
                            "invalid loader_threshold value \"%V\"", &value[i]);
                 return NGX_CONF_ERROR;
@@ -1788,8 +1789,8 @@ ngx_http_file_cache_set_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     cache->path->conf_file = cf->conf_file->file.name.data;
     cache->path->line = cf->conf_file->line;
     cache->loader_files = loader_files;
-    cache->loader_sleep = (ngx_msec_t) loader_sleep;
-    cache->loader_threshold = (ngx_msec_t) loader_threshold;
+    cache->loader_sleep = loader_sleep;
+    cache->loader_threshold = loader_threshold;
 
     if (ngx_add_path(cf, &cache->path) != NGX_OK) {
         return NGX_CONF_ERROR;
@@ -1843,7 +1844,7 @@ ngx_http_file_cache_valid_set_slot(ngx_conf_t *cf, ngx_command_t *cmd,
     n = cf->args->nelts - 1;
 
     valid = ngx_parse_time(&value[n], 1);
-    if (valid < 0) {
+    if (valid == (time_t) NGX_ERROR) {
         ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
                            "invalid time value \"%V\"", &value[n]);
         return NGX_CONF_ERROR;
diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index 8581a946b..4504d9823 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -4268,7 +4268,7 @@ ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
             fail_timeout = ngx_parse_time(&s, 1);
 
-            if (fail_timeout == NGX_ERROR) {
+            if (fail_timeout == (time_t) NGX_ERROR) {
                 goto invalid;
             }