src/parser.c

   1 /*
   2  * netsniff-ng - the packet sniffing beast
   3  * By Daniel Borkmann <daniel@netsniff-ng.org>
   4  * Copyright 2011 Daniel Borkmann.
   5  * Subject to the GPL.
   6  */
   7
   8 #include <string.h>
   9 #include <ctype.h>
  10 #include <stdint.h>
  11 #include <assert.h>
  12
  13 #include "parser.h"
  14 #include "die.h"
  15
  16 char *getuint(char *in, uint32_t *out)
  17 {
  18         char * endptr = NULL;
  19
  20         assert(in);
  21         assert(out);
  22
  23         errno = 0;
  24
  25         *out = strtoul(in, &endptr, 0);
  26
  27         if ((endptr != NULL && *endptr != '\0') || errno != 0) {
  28                 panic("Syntax error!\n");
  29         }
  30
  31         return in;
  32 }
  33
  34 char *strtrim_right(register char *p, register char c)
  35 {
  36         register char *end;
  37         register int len;
  38
  39         len = strlen(p);
  40         while (*p && len) {
  41                 end = p + len - 1;
  42                 if (c == *end)
  43                         *end = 0;
  44                 else
  45                         break;
  46                 len = strlen(p);
  47         }
  48
  49         return p;
  50 }
  51
  52 char *strtrim_left(register char *p, register char c)
  53 {
  54         register int len;
  55
  56         len = strlen(p);
  57         while (*p && len--) {
  58                 if (c == *p)
  59                         p++;
  60                 else
  61                         break;
  62         }
  63
  64         return p;
  65 }