[PATCH weston v4 5/5] Switch to use safe_strtoint instead of strtol
Bryce Harrington
bryce at osg.samsung.com
Thu Aug 4 00:40:52 UTC 2016
Reviewed-by: Eric Engestrom <eric.engestrom at imgtec.com>
Signed-off-by: Bryce Harrington <bryce at osg.samsung.com>
---
compositor/main.c | 7 +++----
compositor/systemd-notify.c | 9 +++------
libweston/compositor.c | 9 +++------
libweston/libbacklight.c | 11 +++++------
shared/config-parser.c | 7 ++-----
shared/option-parser.c | 5 ++---
xwayland/launcher.c | 7 +++----
7 files changed, 21 insertions(+), 34 deletions(-)
diff --git a/compositor/main.c b/compositor/main.c
index 0f7a0c0..4cf8468 100644
--- a/compositor/main.c
+++ b/compositor/main.c
@@ -52,6 +52,7 @@
#include "compositor.h"
#include "../shared/os-compatibility.h"
#include "../shared/helpers.h"
+#include "../shared/string-helpers.h"
#include "git-version.h"
#include "version.h"
#include "weston.h"
@@ -1568,7 +1569,7 @@ int main(int argc, char *argv[])
char *modules = NULL;
char *option_modules = NULL;
char *log = NULL;
- char *server_socket = NULL, *end;
+ char *server_socket = NULL;
int32_t idle_time = -1;
int32_t help = 0;
char *socket_name = NULL;
@@ -1685,9 +1686,7 @@ int main(int argc, char *argv[])
server_socket = getenv("WAYLAND_SERVER_SOCKET");
if (server_socket) {
weston_log("Running with single client\n");
- errno = 0;
- fd = strtol(server_socket, &end, 10);
- if (errno != 0 || end == server_socket || *end != '\0')
+ if (!safe_strtoint(server_socket, &fd))
fd = -1;
} else {
fd = -1;
diff --git a/compositor/systemd-notify.c b/compositor/systemd-notify.c
index 6104124..49e51f4 100644
--- a/compositor/systemd-notify.c
+++ b/compositor/systemd-notify.c
@@ -25,12 +25,13 @@
#include "config.h"
-#include <errno.h>
#include <stdlib.h>
#include <systemd/sd-daemon.h>
#include <sys/socket.h>
#include <wayland-server.h>
+
#include "shared/helpers.h"
+#include "shared/string-helpers.h"
#include "shared/zalloc.h"
#include "compositor.h"
@@ -116,7 +117,6 @@ WL_EXPORT int
module_init(struct weston_compositor *compositor,
int *argc, char *argv[])
{
- char *tail;
char *watchdog_time_env;
struct wl_event_loop *loop;
long watchdog_time_conv;
@@ -140,13 +140,10 @@ module_init(struct weston_compositor *compositor,
* by systemd to transfer 'WatchdogSec' watchdog timeout
* setting from service file.*/
watchdog_time_env = getenv("WATCHDOG_USEC");
-
if (!watchdog_time_env)
return 0;
- errno = 0;
- watchdog_time_conv = strtol(watchdog_time_env, &tail, 10);
- if (errno != 0 || tail == watchdog_time_env || *tail != '\0')
+ if (!safe_strtoint(watchdog_time_env, &watchdog_time_conv))
return 0;
/* Convert 'WATCHDOG_USEC' to milliseconds and notify
diff --git a/libweston/compositor.c b/libweston/compositor.c
index e9c2a83..b17c76d 100644
--- a/libweston/compositor.c
+++ b/libweston/compositor.c
@@ -58,6 +58,7 @@
#include "presentation-time-server-protocol.h"
#include "shared/helpers.h"
#include "shared/os-compatibility.h"
+#include "shared/string-helpers.h"
#include "shared/timespec-util.h"
#include "git-version.h"
#include "version.h"
@@ -4622,15 +4623,11 @@ compositor_bind(struct wl_client *client,
WL_EXPORT int
weston_environment_get_fd(const char *env)
{
- char *e, *end;
+ char *e;
int fd, flags;
e = getenv(env);
- if (!e)
- return -1;
- errno = 0;
- fd = strtol(e, &end, 10);
- if (errno != 0 || end == e || *end != '\0')
+ if (!e || !safe_strtoint(e, &fd))
return -1;
flags = fcntl(fd, F_GETFD);
diff --git a/libweston/libbacklight.c b/libweston/libbacklight.c
index 59f4e44..4bbc6db 100644
--- a/libweston/libbacklight.c
+++ b/libweston/libbacklight.c
@@ -44,13 +44,14 @@
#include <string.h>
#include <errno.h>
+#include "shared/string-helpers.h"
+
static long backlight_get(struct backlight *backlight, char *node)
{
char buffer[100];
char *path;
- char *end;
- int fd;
- long value, ret;
+ int fd, value;
+ long ret;
if (asprintf(&path, "%s/%s", backlight->path, node) < 0)
return -ENOMEM;
@@ -66,9 +67,7 @@ static long backlight_get(struct backlight *backlight, char *node)
goto out;
}
- errno = 0;
- value = strtol(buffer, &end, 10);
- if (errno != 0 || end == buffer || *end != '\0') {
+ if (!safe_strtoint(buffer, &value)) {
ret = -1;
goto out;
}
diff --git a/shared/config-parser.c b/shared/config-parser.c
index 1edfd60..d773cc9 100644
--- a/shared/config-parser.c
+++ b/shared/config-parser.c
@@ -41,6 +41,7 @@
#include <wayland-util.h>
#include "config-parser.h"
#include "helpers.h"
+#include "string-helpers.h"
struct weston_config_entry {
char *key;
@@ -161,7 +162,6 @@ weston_config_section_get_int(struct weston_config_section *section,
int32_t *value, int32_t default_value)
{
struct weston_config_entry *entry;
- char *end;
entry = config_section_get_entry(section, key);
if (entry == NULL) {
@@ -170,11 +170,8 @@ weston_config_section_get_int(struct weston_config_section *section,
return -1;
}
- errno = 0;
- *value = strtol(entry->value, &end, 10);
- if (errno != 0 || end == entry->value || *end != '\0') {
+ if (!safe_strtoint(entry->value, value)) {
*value = default_value;
- errno = EINVAL;
return -1;
}
diff --git a/shared/option-parser.c b/shared/option-parser.c
index fb4a342..eee7546 100644
--- a/shared/option-parser.c
+++ b/shared/option-parser.c
@@ -33,6 +33,7 @@
#include <errno.h>
#include "config-parser.h"
+#include "string-helpers.h"
static int
handle_option(const struct weston_option *option, char *value)
@@ -41,9 +42,7 @@ handle_option(const struct weston_option *option, char *value)
switch (option->type) {
case WESTON_OPTION_INTEGER:
- errno = 0;
- * (int32_t *) option->data = strtol(value, &p, 10);
- if (errno != 0 || p == value || *p != '\0')
+ if (!safe_strtoint(value, option->data))
return 0;
return 1;
case WESTON_OPTION_UNSIGNED_INTEGER:
diff --git a/xwayland/launcher.c b/xwayland/launcher.c
index a83784c..8972319 100644
--- a/xwayland/launcher.c
+++ b/xwayland/launcher.c
@@ -39,6 +39,7 @@
#include "xwayland.h"
#include "xwayland-api.h"
#include "shared/helpers.h"
+#include "shared/string-helpers.h"
#include "compositor/weston.h"
static int
@@ -147,7 +148,7 @@ bind_to_unix_socket(int display)
static int
create_lockfile(int display, char *lockfile, size_t lsize)
{
- char pid[16], *end;
+ char pid[16];
int fd, size;
pid_t other;
@@ -165,9 +166,7 @@ create_lockfile(int display, char *lockfile, size_t lsize)
return -1;
}
- errno = 0;
- other = strtol(pid, &end, 10);
- if (errno != 0 || end == pid || *end != '\0') {
+ if (!safe_strtoint(pid, &other)) {
weston_log("can't parse lock file %s\n",
lockfile);
close(fd);
--
1.9.1
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