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fix potential fd leak

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In most cases, checking fd > 0 is not valid. open(2) returns -1 on
error, 0 on stdin, 1 on stdout, 2 on stderr, >2 . The border should be
between -1 and 0. Additionally, between 2 and 3.

Pointed out by: #919
This commit is contained in:
Koichiro IWAO 2018-01-13 22:10:48 +09:00
parent 5daa09171e
commit b17c45d86f
No known key found for this signature in database
GPG Key ID: 9F72CDBC01BF10EB
3 changed files with 4 additions and 6 deletions
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2
libxrdp/xrdp_sec.c
View File

@ -265,7 +265,7 @@ xrdp_load_keyboard_layout(struct xrdp_client_info *client_info)
fd = g_file_open(keyboard_cfg_file);
if (fd > 0)
if (fd >= 0)
{
int section_found = -1;
char section_rdp_layouts[256] = { 0 };

6
xrdp/xrdp_mm.c
View File

@ -1310,7 +1310,7 @@ xrdp_mm_get_sesman_port(char *port, int port_bytes)
g_snprintf(cfg_file, 255, "%s/sesman.ini", XRDP_CFG_PATH);
fd = g_file_open(cfg_file);
if (fd > 0)
if (fd >= 0)
{
names = list_create();
names->auto_free = 1;
@ -1343,10 +1343,8 @@ xrdp_mm_get_sesman_port(char *port, int port_bytes)
list_delete(names);
list_delete(values);
}
if (fd != -1)
g_file_close(fd);
}
return 0;
}

2
xrdp/xrdp_wm.c
View File

@ -405,7 +405,7 @@ xrdp_wm_load_static_colors_plus(struct xrdp_wm *self, char *autorun_name)
g_snprintf(cfg_file, 255, "%s/xrdp.ini", XRDP_CFG_PATH);
fd = g_file_open(cfg_file);
if (fd > 0)
if (fd >= 0)
{
names = list_create();
names->auto_free = 1;