diff options
Diffstat (limited to 'other/3wahas/common.c')
| -rw-r--r-- | other/3wahas/common.c | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/other/3wahas/common.c b/other/3wahas/common.c new file mode 100644 index 0000000..6f8f591 --- /dev/null +++ b/other/3wahas/common.c | |||
| @@ -0,0 +1,296 @@ | |||
| 1 | |||
| 2 | #include <sys/time.h> | ||
| 3 | #include <netinet/in.h> | ||
| 4 | #include <unistd.h> | ||
| 5 | #include <pthread.h> | ||
| 6 | #include <time.h> | ||
| 7 | #include <stdarg.h> | ||
| 8 | #include <stdio.h> | ||
| 9 | #include <string.h> | ||
| 10 | #include <stdlib.h> | ||
| 11 | #include <unistd.h> | ||
| 12 | #include "common.h" | ||
| 13 | |||
| 14 | #ifdef DEBUG | ||
| 15 | void | ||
| 16 | debugp (char *filename, const char *str, ...) | ||
| 17 | { | ||
| 18 | FILE *fp; /* temporary file pointer */ | ||
| 19 | va_list vl; | ||
| 20 | |||
| 21 | fp = fopen (filename, "a"); | ||
| 22 | if (fp == NULL) | ||
| 23 | return; | ||
| 24 | |||
| 25 | va_start (vl, str); | ||
| 26 | vfprintf (fp, str, vl); | ||
| 27 | va_end (vl); | ||
| 28 | |||
| 29 | fclose (fp); | ||
| 30 | |||
| 31 | return; | ||
| 32 | } | ||
| 33 | |||
| 34 | void | ||
| 35 | hexdump (char *filename, unsigned char *data, unsigned int amount) | ||
| 36 | { | ||
| 37 | FILE *fp; /* temporary file pointer */ | ||
| 38 | unsigned int dp, p; /* data pointer */ | ||
| 39 | const char trans[] = "................................ !\"#$%&'()*+,-./0123456789" | ||
| 40 | ":;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklm" | ||
| 41 | "nopqrstuvwxyz{|}~...................................." | ||
| 42 | "....................................................." | ||
| 43 | "........................................"; | ||
| 44 | |||
| 45 | fp = fopen (filename, "a"); | ||
| 46 | if (fp == NULL) | ||
| 47 | return; | ||
| 48 | |||
| 49 | fprintf (fp, "\n-packet-\n"); | ||
| 50 | |||
| 51 | for (dp = 1; dp <= amount; dp++) { | ||
| 52 | fprintf (fp, "%02x ", data[dp-1]); | ||
| 53 | if ((dp % 8) == 0) | ||
| 54 | fprintf (fp, " "); | ||
| 55 | if ((dp % 16) == 0) { | ||
| 56 | fprintf (fp, "| "); | ||
| 57 | p = dp; | ||
| 58 | for (dp -= 16; dp < p; dp++) | ||
| 59 | fprintf (fp, "%c", trans[data[dp]]); | ||
| 60 | fflush (fp); | ||
| 61 | fprintf (fp, "\n"); | ||
| 62 | } | ||
| 63 | fflush (fp); | ||
| 64 | } | ||
| 65 | if ((amount % 16) != 0) { | ||
| 66 | p = dp = 16 - (amount % 16); | ||
| 67 | for (dp = p; dp > 0; dp--) { | ||
| 68 | fprintf (fp, " "); | ||
| 69 | if (((dp % 8) == 0) && (p != 8)) | ||
| 70 | fprintf (fp, " "); | ||
| 71 | fflush (fp); | ||
| 72 | } | ||
| 73 | fprintf (fp, " | "); | ||
| 74 | for (dp = (amount - (16 - p)); dp < amount; dp++) | ||
| 75 | fprintf (fp, "%c", trans[data[dp]]); | ||
| 76 | fflush (fp); | ||
| 77 | } | ||
| 78 | fprintf (fp, "\n"); | ||
| 79 | |||
| 80 | fclose (fp); | ||
| 81 | return; | ||
| 82 | } | ||
| 83 | |||
| 84 | #endif | ||
| 85 | |||
| 86 | |||
| 87 | /* m_random | ||
| 88 | * | ||
| 89 | * return a random number between `lowmark' and `highmark' | ||
| 90 | */ | ||
| 91 | |||
| 92 | int | ||
| 93 | m_random (int lowmark, int highmark) | ||
| 94 | { | ||
| 95 | long int rnd; | ||
| 96 | |||
| 97 | /* flip/swap them in case user messed up | ||
| 98 | */ | ||
| 99 | if (lowmark > highmark) { | ||
| 100 | lowmark ^= highmark; | ||
| 101 | highmark ^= lowmark; | ||
| 102 | lowmark ^= highmark; | ||
| 103 | } | ||
| 104 | rnd = lowmark; | ||
| 105 | |||
| 106 | srandom ((unsigned int) time (NULL)); | ||
| 107 | rnd += (random () % (highmark - lowmark)); | ||
| 108 | |||
| 109 | /* this is lame, i know :) | ||
| 110 | */ | ||
| 111 | return (rnd); | ||
| 112 | } | ||
| 113 | |||
| 114 | |||
| 115 | /* set_tv | ||
| 116 | * | ||
| 117 | * initializes a struct timeval pointed to by `tv' to a second value of | ||
| 118 | * `seconds' | ||
| 119 | * | ||
| 120 | * return in any case | ||
| 121 | */ | ||
| 122 | |||
| 123 | void | ||
| 124 | set_tv (struct timeval *tv, int seconds) | ||
| 125 | { | ||
| 126 | tv->tv_sec = seconds; | ||
| 127 | tv->tv_usec = 0; | ||
| 128 | |||
| 129 | return; | ||
| 130 | } | ||
| 131 | |||
| 132 | |||
| 133 | /* xstrupper | ||
| 134 | * | ||
| 135 | * uppercase a string `str' | ||
| 136 | * | ||
| 137 | * return in any case | ||
| 138 | */ | ||
| 139 | |||
| 140 | void | ||
| 141 | xstrupper (char *str) | ||
| 142 | { | ||
| 143 | for (; *str != '\0'; ++str) { | ||
| 144 | if (*str >= 'a' && *str <= 'z') { | ||
| 145 | *str -= ('a' - 'A'); | ||
| 146 | } | ||
| 147 | } | ||
| 148 | |||
| 149 | return; | ||
| 150 | } | ||
| 151 | |||
| 152 | |||
| 153 | /* concating snprintf | ||
| 154 | * | ||
| 155 | * determines the length of the string pointed to by `os', appending formatted | ||
| 156 | * string to a maximium length of `len'. | ||
| 157 | * | ||
| 158 | */ | ||
| 159 | |||
| 160 | void | ||
| 161 | scnprintf (char *os, size_t len, const char *str, ...) | ||
| 162 | { | ||
| 163 | va_list vl; | ||
| 164 | char *ostmp = os + strlen (os); | ||
| 165 | |||
| 166 | va_start (vl, str); | ||
| 167 | vsnprintf (ostmp, len - strlen (os) - 1, str, vl); | ||
| 168 | va_end (vl); | ||
| 169 | |||
| 170 | return; | ||
| 171 | } | ||
| 172 | |||
| 173 | unsigned long int | ||
| 174 | tdiff (struct timeval *old, struct timeval *new) | ||
| 175 | { | ||
| 176 | unsigned long int time1; | ||
| 177 | |||
| 178 | if (new->tv_sec >= old->tv_sec) { | ||
| 179 | time1 = new->tv_sec - old->tv_sec; | ||
| 180 | if ((new->tv_usec - 500000) >= old->tv_usec) | ||
| 181 | time1++; | ||
| 182 | } else { | ||
| 183 | time1 = old->tv_sec - new->tv_sec; | ||
| 184 | if ((old->tv_usec - 500000) >= new->tv_usec) | ||
| 185 | time1++; | ||
| 186 | } | ||
| 187 | |||
| 188 | return (time1); | ||
| 189 | } | ||
| 190 | |||
| 191 | |||
| 192 | /* ipv4_print | ||
| 193 | * | ||
| 194 | * padding = 0 -> don't padd | ||
| 195 | * padding = 1 -> padd with zeros | ||
| 196 | * padding = 2 -> padd with spaces | ||
| 197 | */ | ||
| 198 | |||
| 199 | char * | ||
| 200 | ipv4_print (char *dest, struct in_addr in, int padding) | ||
| 201 | { | ||
| 202 | unsigned char *ipp; | ||
| 203 | |||
| 204 | ipp = (unsigned char *) &in.s_addr; | ||
| 205 | |||
| 206 | strcpy (dest, ""); | ||
| 207 | |||
| 208 | switch (padding) { | ||
| 209 | case (0): | ||
| 210 | sprintf (dest, "%d.%d.%d.%d", ipp[0], ipp[1], ipp[2], ipp[3]); | ||
| 211 | break; | ||
| 212 | case (1): | ||
| 213 | sprintf (dest, "%03d.%03d.%03d.%03d", ipp[0], ipp[1], ipp[2], ipp[3]); | ||
| 214 | break; | ||
| 215 | case (2): | ||
| 216 | sprintf (dest, "%3d.%3d.%3d.%3d", ipp[0], ipp[1], ipp[2], ipp[3]); | ||
| 217 | break; | ||
| 218 | default: | ||
| 219 | break; | ||
| 220 | } | ||
| 221 | |||
| 222 | return (dest); | ||
| 223 | } | ||
| 224 | |||
| 225 | |||
| 226 | void * | ||
| 227 | xrealloc (void *m_ptr, size_t newsize) | ||
| 228 | { | ||
| 229 | void *n_ptr; | ||
| 230 | |||
| 231 | n_ptr = realloc (m_ptr, newsize); | ||
| 232 | if (n_ptr == NULL) { | ||
| 233 | fprintf (stderr, "realloc failed\n"); | ||
| 234 | exit (EXIT_FAILURE); | ||
| 235 | } | ||
| 236 | |||
| 237 | return (n_ptr); | ||
| 238 | } | ||
| 239 | |||
| 240 | |||
| 241 | char * | ||
| 242 | xstrdup (char *str) | ||
| 243 | { | ||
| 244 | char *b; | ||
| 245 | |||
| 246 | b = strdup (str); | ||
| 247 | if (b == NULL) { | ||
| 248 | fprintf (stderr, "strdup failed\n"); | ||
| 249 | exit (EXIT_FAILURE); | ||
| 250 | } | ||
| 251 | |||
| 252 | return (b); | ||
| 253 | } | ||
| 254 | |||
| 255 | |||
| 256 | void * | ||
| 257 | xcalloc (int factor, size_t size) | ||
| 258 | { | ||
| 259 | void *bla; | ||
| 260 | |||
| 261 | bla = calloc (factor, size); | ||
| 262 | |||
| 263 | if (bla == NULL) { | ||
| 264 | fprintf (stderr, "no memory left\n"); | ||
| 265 | exit (EXIT_FAILURE); | ||
| 266 | } | ||
| 267 | |||
| 268 | return (bla); | ||
| 269 | } | ||
| 270 | |||
| 271 | /* source by dk | ||
| 272 | */ | ||
| 273 | |||
| 274 | char * | ||
| 275 | allocncat (char **to, char *from, size_t len) | ||
| 276 | { | ||
| 277 | int rlen = strlen (from); | ||
| 278 | int null = *to == NULL; | ||
| 279 | |||
| 280 | len = rlen < len ? rlen : len; | ||
| 281 | *to = realloc (*to, (null ? 0 : strlen (*to)) + len + 1); | ||
| 282 | if (null) | ||
| 283 | **to = '\0'; | ||
| 284 | |||
| 285 | if (*to == NULL) | ||
| 286 | perror ("no memory: "); | ||
| 287 | |||
| 288 | return (strncat (*to, from, len)); | ||
| 289 | } | ||
| 290 | |||
| 291 | char * | ||
| 292 | alloccat (char **to, char *from) | ||
| 293 | { | ||
| 294 | return (allocncat (to, from, strlen (from))); | ||
| 295 | } | ||
| 296 | |||
