bin/cpdup/compat_sun.c

   1 /*
   2  * Implement some functions which are unknown to Solaris 10.
   3  */
   4
   5 #include "compat_sun.h"
   6 #include <stdlib.h>
   7
   8 int
   9 vasprintf(char **str, const char *format, va_list ap)
  10 {
  11     char dummy[2];
  12     int result;
  13
  14     if ((result = vsnprintf(dummy, 2, format, ap)) < 0) {
  15         *str = NULL;
  16         return (result);
  17     }
  18     if ((*str = malloc(result + 1)) == NULL)
  19         return (-1);
  20     if ((result = vsnprintf(*str, result + 1, format, ap)) < 0) {
  21         free(*str);
  22         *str = NULL;
  23     }
  24     return (result);
  25 }
  26
  27 int
  28 asprintf(char **str, const char *format, ...)
  29 {
  30     va_list ap;
  31     int result;
  32
  33     va_start(ap, format);
  34     result = vasprintf(str, format, ap);
  35     va_end(ap);
  36     return (result);
  37 }
  38
  39 #ifndef NOMD5
  40
  41 #include <sys/types.h>
  42 #include <sys/uio.h>
  43 #include <unistd.h>
  44 #include <fcntl.h>
  45
  46 char *
  47 MD5File(const char *filename, char *buf)
  48 {
  49     unsigned char dbuf[8192];
  50     MD5_CTX ctx;
  51     int fd;
  52     int count;
  53
  54     if ((fd = open(filename, O_RDONLY)) < 0)
  55         return (NULL);
  56     MD5Init(&ctx);
  57     while ((count = read(fd, dbuf, sizeof(dbuf))) > 0)
  58         MD5Update(&ctx, dbuf, count);
  59     close(fd);
  60     if (count < 0)
  61         return (NULL);
  62     if (buf == NULL)
  63         if ((buf = malloc(33)) == NULL)
  64             return NULL;
  65     MD5Final(dbuf, &ctx);
  66     for (count = 0; count < 16; count++)
  67         sprintf(buf + count * 2, "%02x", dbuf[count]);
  68     return (buf);
  69 }
  70
  71 #endif  /* ifndef NOMD5 */