diff options
| author | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2016-11-02 22:02:46 -0400 |
|---|---|---|
| committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2016-11-02 22:36:29 -0400 |
| commit | e68eedbbdc98fa13449756b7fee3bed689d76493 (patch) | |
| tree | 998a7b6e3a6f79d6ddade784a7cbb1b841bb2731 /src/udev | |
| parent | 7fa6328cc447a4a834ebc8d68ae6c335f4c9c9d3 (diff) | |
Revert some uses of xsprintf
This reverts some changes introduced in d054f0a4d4.
xsprintf should be used in cases where we calculated the right buffer
size by hand (using DECIMAL_STRING_MAX and such), and never in cases where
we are printing externally specified strings of arbitrary length.
Fixes #4534.
Diffstat (limited to 'src/udev')
| -rw-r--r-- | src/udev/collect/collect.c | 6 | ||||
| -rw-r--r-- | src/udev/udev-builtin-net_id.c | 11 |
2 files changed, 9 insertions, 8 deletions
diff --git a/src/udev/collect/collect.c b/src/udev/collect/collect.c index 349585b634..0e973cd521 100644 --- a/src/udev/collect/collect.c +++ b/src/udev/collect/collect.c @@ -85,16 +85,16 @@ static void usage(void) */ static int prepare(char *dir, char *filename) { - char buf[512]; + char buf[PATH_MAX]; int r, fd; r = mkdir(dir, 0700); if (r < 0 && errno != EEXIST) return -errno; - xsprintf(buf, "%s/%s", dir, filename); + snprintf(buf, sizeof buf, "%s/%s", dir, filename); - fd = open(buf,O_RDWR|O_CREAT|O_CLOEXEC, S_IRUSR|S_IWUSR); + fd = open(buf, O_RDWR|O_CREAT|O_CLOEXEC, S_IRUSR|S_IWUSR); if (fd < 0) fprintf(stderr, "Cannot open %s: %m\n", buf); diff --git a/src/udev/udev-builtin-net_id.c b/src/udev/udev-builtin-net_id.c index 0eb2500dd2..fe9d6f4482 100644 --- a/src/udev/udev-builtin-net_id.c +++ b/src/udev/udev-builtin-net_id.c @@ -211,7 +211,7 @@ static int dev_pci_slot(struct udev_device *dev, struct netnames *names) { char *s; const char *attr, *port_name; struct udev_device *pci = NULL; - char slots[256], str[256]; + char slots[PATH_MAX]; _cleanup_closedir_ DIR *dir = NULL; struct dirent *dent; int hotplug_slot = 0, err = 0; @@ -248,7 +248,8 @@ static int dev_pci_slot(struct udev_device *dev, struct netnames *names) { err = -ENOENT; goto out; } - xsprintf(slots, "%s/slots", udev_device_get_syspath(pci)); + + snprintf(slots, sizeof slots, "%s/slots", udev_device_get_syspath(pci)); dir = opendir(slots); if (!dir) { err = -errno; @@ -257,8 +258,7 @@ static int dev_pci_slot(struct udev_device *dev, struct netnames *names) { for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) { int i; - char *rest; - char *address; + char *rest, *address, str[PATH_MAX]; if (dent->d_name[0] == '.') continue; @@ -267,7 +267,8 @@ static int dev_pci_slot(struct udev_device *dev, struct netnames *names) { continue; if (i < 1) continue; - xsprintf(str, "%s/%s/address", slots, dent->d_name); + + snprintf(str, sizeof str, "%s/%s/address", slots, dent->d_name); if (read_one_line_file(str, &address) >= 0) { /* match slot address with device by stripping the function */ if (strneq(address, udev_device_get_sysname(names->pcidev), strlen(address))) |