gcc/f/runtime/libF77/system_.c

   1 /* f77 interface to system routine */
   2
   3 #include "f2c.h"
   4
   5 #ifdef KR_headers
   6 extern char *F77_aloc();
   7
   8  integer
   9 G77_system_0 (s, n) register char *s; ftnlen n;
  10 #else
  11 #undef abs
  12 #undef min
  13 #undef max
  14 #include <stdlib.h>
  15 extern char *F77_aloc(ftnlen, char*);
  16
  17  integer
  18 G77_system_0 (register char *s, ftnlen n)
  19 #endif
  20 {
  21         char buff0[256], *buff;
  22         register char *bp, *blast;
  23         integer rv;
  24
  25         buff = bp = n < sizeof(buff0)
  26                         ? buff0 : F77_aloc(n+1, "system_");
  27         blast = bp + n;
  28
  29         while(bp < blast && *s)
  30                 *bp++ = *s++;
  31         *bp = 0;
  32         rv = system(buff);
  33         if (buff != buff0)
  34                 free(buff);
  35         return rv;
  36         }