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util/nvmutil: use portable mkstemp

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Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-16 15:15:53 +00:00
parent 2a6a63fef3
commit e9d90e8aca
1 changed files with 17 additions and 2 deletions
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util/nvmutil/nvmutil.c
+17 -2
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@@ -466,6 +466,7 @@ static const char *getnvmprogname(void);
* a special kind of hell * a special kind of hell
*/ */
static char *new_tmpfile(int *fd, int local, const char *path); static char *new_tmpfile(int *fd, int local, const char *path);
static int x_i_mkstemp(char *template);
/* /*
* Sizes in bytes: * Sizes in bytes:
@@ -693,7 +694,6 @@ static ino_t tmp_ino;
* prototypes. Should be safe * prototypes. Should be safe
* on most Unices and compilers * on most Unices and compilers
*/ */
int mkstemp(char *template);
int fchmod(int fd, mode_t mode); int fchmod(int fd, mode_t mode);
static int tmp_fd = -1; static int tmp_fd = -1;
@@ -2910,7 +2910,7 @@ new_tmpfile(int *fd, int local, const char *path)
dest[tmppath_len] = '\0'; dest[tmppath_len] = '\0';
fd_tmp = mkstemp(dest); fd_tmp = x_i_mkstemp(dest);
if (fd_tmp == -1) if (fd_tmp == -1)
goto err_new_tmpfile; goto err_new_tmpfile;
@@ -2975,3 +2975,18 @@ err_new_tmpfile:
return NULL; return NULL;
} }
/*
* portable mkstemp
*/
static int
x_i_mkstemp(char *template)
{
int fd;
if (mktemp(template) == NULL)
return -1;
fd = open(template, O_RDWR | O_CREAT | O_EXCL, 0600);
return fd;
}