mirror of
https://github.com/vanhoefm/fragattacks.git
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d85e1fc8a5
This converts os_snprintf() result validation cases to use
os_snprintf_error() where the exact rule used in os_snprintf_error() was
used. These changes were done automatically with spatch using the
following semantic patch:
@@
identifier E1;
expression E2,E3,E4,E5,E6;
statement S1;
@@
(
E1 = os_snprintf(E2, E3, ...);
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int E1 = os_snprintf(E2, E3, ...);
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if (E5)
E1 = os_snprintf(E2, E3, ...);
else
E1 = os_snprintf(E2, E3, ...);
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if (E5)
E1 = os_snprintf(E2, E3, ...);
else if (E6)
E1 = os_snprintf(E2, E3, ...);
else
E1 = 0;
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if (E5) {
...
E1 = os_snprintf(E2, E3, ...);
} else {
...
return -1;
}
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if (E5) {
...
E1 = os_snprintf(E2, E3, ...);
} else if (E6) {
...
E1 = os_snprintf(E2, E3, ...);
} else {
...
return -1;
}
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if (E5) {
...
E1 = os_snprintf(E2, E3, ...);
} else {
...
E1 = os_snprintf(E2, E3, ...);
}
)
? os_free(E4);
- if (E1 < 0 || \( E1 >= E3 \| (size_t) E1 >= E3 \| (unsigned int) E1 >= E3 \| E1 >= (int) E3 \))
+ if (os_snprintf_error(E3, E1))
(
S1
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{ ... }
)
Signed-off-by: Jouni Malinen <j@w1.fi>
72 lines
1.3 KiB
C
72 lines
1.3 KiB
C
/*
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* Universally Unique IDentifier (UUID)
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* Copyright (c) 2008, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "includes.h"
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#include "common.h"
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#include "uuid.h"
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int uuid_str2bin(const char *str, u8 *bin)
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{
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const char *pos;
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u8 *opos;
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pos = str;
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opos = bin;
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if (hexstr2bin(pos, opos, 4))
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return -1;
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pos += 8;
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opos += 4;
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if (*pos++ != '-' || hexstr2bin(pos, opos, 2))
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return -1;
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pos += 4;
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opos += 2;
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if (*pos++ != '-' || hexstr2bin(pos, opos, 2))
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return -1;
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pos += 4;
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opos += 2;
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if (*pos++ != '-' || hexstr2bin(pos, opos, 2))
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return -1;
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pos += 4;
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opos += 2;
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if (*pos++ != '-' || hexstr2bin(pos, opos, 6))
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return -1;
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return 0;
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}
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int uuid_bin2str(const u8 *bin, char *str, size_t max_len)
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{
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int len;
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len = os_snprintf(str, max_len, "%02x%02x%02x%02x-%02x%02x-%02x%02x-"
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"%02x%02x-%02x%02x%02x%02x%02x%02x",
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bin[0], bin[1], bin[2], bin[3],
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bin[4], bin[5], bin[6], bin[7],
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bin[8], bin[9], bin[10], bin[11],
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bin[12], bin[13], bin[14], bin[15]);
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if (os_snprintf_error(max_len, len))
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return -1;
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return 0;
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}
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int is_nil_uuid(const u8 *uuid)
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{
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int i;
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for (i = 0; i < UUID_LEN; i++)
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if (uuid[i])
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return 0;
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return 1;
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}
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