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change strcpy to strlcpy

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Signed-off-by: lilei19 <lilei19@xiaomi.com>
This commit is contained in:
lilei19
2023-02-08 11:29:09 +08:00
committed by GUIDINGLI
parent 68ff73c5fb
commit 38f64f559d
47 changed files with 155 additions and 123 deletions
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libs/libc/pwd/lib_getpwbufr.c
+16 -9
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@@ -69,9 +69,16 @@ int getpwbuf_r(uid_t uid, gid_t gid, FAR const char *name,
FAR char *buf, size_t buflen, FAR struct passwd **result)
{
size_t reqdlen;
size_t nsize;
size_t gsize;
size_t dsize;
size_t ssize;
reqdlen = strlen(name) + 1 + strlen(gecos) + 1 + strlen(dir) + 1 +
strlen(shell) + 1;
nsize = strlen(name) + 1;
gsize = strlen(gecos) + 1;
dsize = strlen(dir) + 1;
ssize = strlen(shell) + 1;
reqdlen = nsize + gsize + dsize + ssize;
if (buflen < reqdlen)
{
@@ -82,16 +89,16 @@ int getpwbuf_r(uid_t uid, gid_t gid, FAR const char *name,
}
pwd->pw_name = buf;
pwd->pw_gecos = &buf[strlen(name) + 1];
pwd->pw_dir = &buf[strlen(name) + strlen(gecos) + 2];
pwd->pw_shell = &buf[strlen(name) + strlen(gecos) + strlen(dir) + 3];
pwd->pw_gecos = &buf[nsize];
pwd->pw_dir = &buf[nsize + gsize];
pwd->pw_shell = &buf[nsize + gsize + dsize];
pwd->pw_uid = uid;
pwd->pw_gid = gid;
strcpy(pwd->pw_name, name);
strcpy(pwd->pw_gecos, gecos);
strcpy(pwd->pw_dir, dir);
strcpy(pwd->pw_shell, shell);
strlcpy(pwd->pw_name, name, nsize);
strlcpy(pwd->pw_gecos, gecos, gsize);
strlcpy(pwd->pw_dir, dir, dsize);
strlcpy(pwd->pw_shell, shell, ssize);
*result = pwd;
return 0;