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Compute directory for temporary files once and use same directory for all subsequent calls.

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This commit is contained in:
Preston L. Bannister 2002-05-09 19:36:03 +00:00
parent 06f375b1cf
commit 2d22fc3316
1 changed files with 105 additions and 76 deletions
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181
main/php_open_temporary_file.c
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@ -87,60 +87,108 @@
* SUCH DAMAGE.
*/
static FILE *php_do_open_temporary_file(char *path, const char *pfx, char **opened_path_p TSRMLS_DC)
static FILE *php_do_open_temporary_file(const char *path, const char *pfx, char **opened_path_p TSRMLS_DC)
{
char *trailing_slash;
FILE *fp;
char *opened_path;
char *trailing_slash;
FILE *fp;
char *opened_path;
#ifndef PHP_WIN32
int fd;
int fd;
#endif
if (!path) {
return NULL;
}
if (!path) {
return NULL;
}
if (!(opened_path = emalloc(MAXPATHLEN))) {
return NULL;
}
if (!(opened_path = emalloc(MAXPATHLEN))) {
return NULL;
}
if (path[strlen(path)-1] == '/') {
trailing_slash = "";
} else {
trailing_slash = "/";
}
if (path[strlen(path)-1] == '/') {
trailing_slash = "";
} else {
trailing_slash = "/";
}
(void)snprintf(opened_path, MAXPATHLEN, "%s%s%sXXXXXX", path, trailing_slash, pfx);
(void)snprintf(opened_path, MAXPATHLEN, "%s%s%sXXXXXX", path, trailing_slash, pfx);
#ifdef PHP_WIN32
if (GetTempFileName(path, pfx, 0, opened_path)) {
fp = VCWD_FOPEN(opened_path, "wb");
} else {
fp = NULL;
}
if (GetTempFileName(path, pfx, 0, opened_path)) {
fp = VCWD_FOPEN(opened_path, "wb");
} else {
fp = NULL;
}
#elif defined(HAVE_MKSTEMP)
fd = mkstemp(opened_path);
if (fd==-1) {
fp = NULL;
} else {
fp = fdopen(fd, "wb");
}
fd = mkstemp(opened_path);
if (fd==-1) {
fp = NULL;
} else {
fp = fdopen(fd, "wb");
}
#else
if (mktemp(opened_path)) {
fp = VCWD_FOPEN(opened_path, "wb");
} else {
fp = NULL;
}
if (mktemp(opened_path)) {
fp = VCWD_FOPEN(opened_path, "wb");
} else {
fp = NULL;
}
#endif
if (!fp || !opened_path_p) {
efree(opened_path);
} else {
*opened_path_p = opened_path;
}
return fp;
if (!fp || !opened_path_p) {
efree(opened_path);
} else {
*opened_path_p = opened_path;
}
return fp;
}
/* }}} */
/*
* Determine where to place temporary files.
*/
const char* get_temporary_directory()
{
/* Cache the chosen temporary directory. */
static char* temporary_directory;
/* Did we determine the temporary directory already? */
if (temporary_directory) {
return temporary_directory;
}
#ifdef PHP_WIN32
/* We can't count on the environment variables TEMP or TMP,
* and so must make the Win32 API call to get the default
* directory for temporary files. Note this call checks
* the environment values TMP and TEMP (in order) first.
*/
{
char sTemp[MAX_PATH];
DWORD n = GetTempPath(sizeof(sTemp),sTemp);
assert(0 < n); /* should *never* fail! */
temporary_directory = strdup(sTemp);
return temporary_directory;
}
#else
/* On Unix use the (usual) TMPDIR environment variable. */
{
char* s = getenv("TMPDIR");
if (s) {
temporary_directory = strdup(s);
return temporary_directory;
}
}
#ifdef P_tmpdir
/* Use the standard default temporary directory. */
if (P_tmpdir) {
temporary_directory = P_tmpdir;
return temporary_directory;
}
#endif
/* Shouldn't ever(!) end up here ... last ditch default. */
temporary_directory = "/tmp";
return temporary_directory;
#endif
}
/* {{{ php_open_temporary_file
*
* Unlike tempnam(), the supplied dir argument takes precedence
@ -150,47 +198,28 @@ static FILE *php_do_open_temporary_file(char *path, const char *pfx, char **open
*/
PHPAPI FILE *php_open_temporary_file(const char *dir, const char *pfx, char **opened_path_p TSRMLS_DC)
{
static char path_tmp[] = "/tmp";
FILE *fp;
if (!pfx) {
pfx = "tmp.";
}
FILE* fp = 0;
if (opened_path_p) {
*opened_path_p = NULL;
}
if (!pfx) {
pfx = "tmp.";
}
if (opened_path_p) {
*opened_path_p = NULL;
}
if ((fp=php_do_open_temporary_file((char *) dir, pfx, opened_path_p TSRMLS_CC))) {
return fp;
}
/* Try the directory given as parameter. */
fp = php_do_open_temporary_file(dir, pfx, opened_path_p TSRMLS_CC);
if (fp) {
return fp;
}
if ((fp=php_do_open_temporary_file(getenv("TMPDIR"), pfx, opened_path_p TSRMLS_CC))) {
return fp;
}
#if PHP_WIN32
{
char *TempPath;
/* Use default temporary directory. */
fp = php_do_open_temporary_file(get_temporary_directory(), pfx, opened_path_p TSRMLS_CC);
if (fp) {
return fp;
}
TempPath = (char *) emalloc(MAXPATHLEN);
if (GetTempPath(MAXPATHLEN, TempPath)) {
fp = php_do_open_temporary_file(TempPath, pfx, opened_path_p TSRMLS_CC);
}
efree(TempPath);
return fp;
}
#else
if ((fp=php_do_open_temporary_file(P_tmpdir, pfx, opened_path_p TSRMLS_CC))) {
return fp;
}
if ((fp=php_do_open_temporary_file(path_tmp, pfx, opened_path_p TSRMLS_CC))) {
return fp;
}
#endif
return NULL;
return 0;
}
/* }}} */