[PHP3] tempnam() question. From: Tristan Hannover (phate <email protected>)
Date: 11/30/99

Hi,

I'm trying to use tempnam() to make unique names for temp files, but the
limit on the filename is about 6 characters. Which means I can only get
6 unique characters after the prefix.

I tried to modify ext/standard/file.c, and added about 20 X's.

After recompiling php source, and apache source, the tempnam() function
still makes 6 character unique names.

I even set the MAXPATHLEN to 255, am I missing something?

I'm scratching my head over this.

I'm including my patch for ext/standard/file.c, if anyone can take a
look, it would be greately appreciated.

Thanks,
Tris

--- php-4.0b2/ext/standard/file.c Mon Aug 2 15:16:50 1999
+++ php-4.0b2a/ext/standard/file.c Tue Nov 30 13:49:10 1999
@@ -123,13 +123,7 @@
 # include <unistd.h>
 #endif
 
-#ifndef MAXPATHLEN
-# ifdef PATH_MAX
-# define MAXPATHLEN PATH_MAX
-# else
 # define MAXPATHLEN 255
-# endif
-#endif
 
 
 char *tempnam(const char *dir, const char *pfx)
@@ -138,38 +132,43 @@
         char *f, *name;
         static char path_tmp[] = "/tmp";
 
- if (!(name = emalloc(MAXPATHLEN))) {
+ if (!(name = emalloc(255))) {
                 return(NULL);
         }
 
+/*
         if (!pfx) {
                 pfx = "tmp.";
         }
+*/
 
+ sprintf(name,"%s%sXXXXXXXXXXXXXXXXXXXXXXX",dir,pfx);
+ if(f=mktemp(name)) return(f);
+/*
         if (f = getenv("TMPDIR")) {
- (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
+ (void)sprintf(name, "%s%s%sXXXXXXXXXXX", f,
                                            *(f + strlen(f) - 1) == '/'? "": "/", pfx);
                 if (f = mktemp(name))
                         return(f);
         }
 
         if (f = (char *)dir) {
- (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
+ (void)sprintf(name, "%s%s%sXXXXXXXXXXX", f,
                                            *(f + strlen(f) - 1) == '/'? "": "/", pfx);
                 if (f = mktemp(name))
                         return(f);
         }
 
         f = P_tmpdir;
- (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
+ (void)sprintf(name, "%s%sXXXXXXXXXXX", f, pfx);
         if (f = mktemp(name))
                 return(f);
 
         f = path_tmp;
- (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
+ (void)sprintf(name, "%s%sXXXXXXXXXXX", f, pfx);
         if (f = mktemp(name))
                 return(f);
-
+*/
         save_errno = errno;
         efree(name);
         errno = save_errno; 

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