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compat/win32: fix const-correctness with string constants

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Adjust various places in our Win32 compatibility layer where we are not
assigning string constants to `const char *` variables.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt 2024-06-07 08:38:44 +02:00 committed by Junio C Hamano
parent 9c076c32fb
commit e7b40195ae
3 changed files with 31 additions and 15 deletions
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16
compat/basename.c
View file

@ -10,7 +10,13 @@ char *gitbasename (char *path)
skip_dos_drive_prefix(&path);
if (!path || !*path)
return ".";
/*
* basename(3P) is mis-specified because it returns a
* non-constant pointer even though it is specified to return a
* pointer to internal memory at times. The cast is a result of
* that.
*/
return (char *) ".";
for (base = path; *path; path++) {
if (!is_dir_sep(*path))
@ -34,7 +40,13 @@ char *gitdirname(char *path)
int dos_drive_prefix;
if (!p)
return ".";
/*
* dirname(3P) is mis-specified because it returns a
* non-constant pointer even though it is specified to return a
* pointer to internal memory at times. The cast is a result of
* that.
*/
return (char *) ".";
if ((dos_drive_prefix = skip_dos_drive_prefix(&p)) && !*p)
goto dot;

28
compat/mingw.c
View file

@ -2279,7 +2279,11 @@ struct passwd *getpwuid(int uid)
p->pw_name = user_name;
p->pw_gecos = get_extended_user_info(NameDisplay);
if (!p->pw_gecos)
p->pw_gecos = "unknown";
/*
* Data returned by getpwuid(3P) is treated as internal and
* must never be written to or freed.
*/
p->pw_gecos = (char *) "unknown";
p->pw_dir = NULL;
initialized = 1;
@ -2800,16 +2804,16 @@ int is_path_owned_by_current_sid(const char *path, struct strbuf *report)
strbuf_addf(report, "'%s' is on a file system that does "
"not record ownership\n", path);
} else if (report) {
LPSTR str1, str2, str3, str4, to_free1 = NULL,
to_free3 = NULL, to_local_free2 = NULL,
to_local_free4 = NULL;
PCSTR str1, str2, str3, str4;
LPSTR to_free1 = NULL, to_free3 = NULL,
to_local_free2 = NULL, to_local_free4 = NULL;
if (user_sid_to_user_name(sid, &str1))
to_free1 = str1;
if (user_sid_to_user_name(sid, &to_free1))
str1 = to_free1;
else
str1 = "(inconvertible)";
if (ConvertSidToStringSidA(sid, &str2))
to_local_free2 = str2;
if (ConvertSidToStringSidA(sid, &to_local_free2))
str2 = to_local_free2;
else
str2 = "(inconvertible)";
@ -2822,13 +2826,13 @@ int is_path_owned_by_current_sid(const char *path, struct strbuf *report)
str4 = "(invalid)";
} else {
if (user_sid_to_user_name(current_user_sid,
&str3))
to_free3 = str3;
&to_free3))
str3 = to_free3;
else
str3 = "(inconvertible)";
if (ConvertSidToStringSidA(current_user_sid,
&str4))
to_local_free4 = str4;
&to_local_free4))
str4 = to_local_free4;
else
str4 = "(inconvertible)";
}

2
compat/winansi.c
View file

@ -139,7 +139,7 @@ static void write_console(unsigned char *str, size_t len)
/* convert utf-8 to utf-16 */
int wlen = xutftowcsn(wbuf, (char*) str, ARRAY_SIZE(wbuf), len);
if (wlen < 0) {
wchar_t *err = L"[invalid]";
const wchar_t *err = L"[invalid]";
WriteConsoleW(console, err, wcslen(err), &dummy, NULL);
return;
}