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       tmpnam.c - scc - simple c99 compiler
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       ---
       tmpnam.c (353B)
       ---
            1 #include <sys.h>
            2 
            3 #include <stdio.h>
            4 #include <string.h>
            5 
            6 #include "../syscall.h"
            7 
            8 #undef tmpnam
            9 
           10 char *
           11 tmpnam(char *s)
           12 {
           13         static char tmpl[] = _TMPNAME;
           14         char *p;
           15 
           16         for (;;) {
           17                 for (p = tmpl; *p && *p != '9'; ++p)
           18                         ;
           19                 if (*p == '\0')
           20                         return NULL;
           21                 ++*p;
           22 
           23                 if (_access(tmpl, F_OK) != 0)
           24                         break;
           25         }
           26         if (s)
           27                 strcpy(s, tmpl);
           28         return tmpl;
           29 }