156 lines
4.7 KiB
C++
156 lines
4.7 KiB
C++
/* miscfuncs.cc: misc funcs that don't belong anywhere else
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Copyright 1996, 1997, 1998, 1999, 2000 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include "winsup.h"
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#include "cygerrno.h"
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#include <sys/errno.h>
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/********************** String Helper Functions ************************/
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const char case_folded_lower[] NO_COPY = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
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32, '!', '"', '#', '$', '%', '&', 39, '(', ')', '*', '+', ',', '-', '.', '/',
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=', '>', '?',
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'@', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
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'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '[', 92, ']', '^', '_',
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'`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
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'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '{', '|', '}', '~', 127,
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128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
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160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
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176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
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192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
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208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
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224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
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240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
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};
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const char case_folded_upper[] NO_COPY = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
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32, '!', '"', '#', '$', '%', '&', 39, '(', ')', '*', '+', ',', '-', '.', '/',
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=', '>', '?',
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'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
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'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '[', 92, ']', '^', '_',
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'`', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
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'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '{', '|', '}', '~', 127,
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128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
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160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
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176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
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192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
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208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
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224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
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240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
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};
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#define ch_case_eq(ch1, ch2) (cyg_tolower(ch1) == cyg_tolower(ch2))
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/* Return TRUE if two strings match up to length n */
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extern "C" int __stdcall
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strncasematch (const char *s1, const char *s2, size_t n)
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{
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if (s1 == s2)
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return 1;
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n++;
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while (--n && *s1)
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{
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if (!ch_case_eq (*s1, *s2))
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return 0;
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s1++; s2++;
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}
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return !n || *s2 == '\0';
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}
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/* Return TRUE if two strings match */
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extern "C" int __stdcall
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strcasematch (const char *s1, const char *s2)
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{
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if (s1 == s2)
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return 1;
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while (*s1)
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{
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if (!ch_case_eq (*s1, *s2))
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return 0;
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s1++; s2++;
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}
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return *s2 == '\0';
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}
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extern "C" char * __stdcall
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strcasestr (const char *searchee, const char *lookfor)
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{
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if (*searchee == 0)
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{
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if (*lookfor)
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return NULL;
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return (char *) searchee;
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}
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while (*searchee)
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{
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int i = 0;
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while (1)
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{
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if (lookfor[i] == 0)
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return (char *) searchee;
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if (!ch_case_eq (lookfor[i], searchee[i]))
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break;
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lookfor++;
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}
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searchee++;
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}
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return NULL;
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}
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int __stdcall
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check_null_empty_str (const char *name)
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{
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if (!name || IsBadStringPtr (name, MAX_PATH))
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return EFAULT;
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if (!*name)
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return ENOENT;
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return 0;
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}
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int __stdcall
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check_null_empty_str_errno (const char *name)
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{
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int __err;
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if ((__err = check_null_empty_str (name)))
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set_errno (__err);
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return __err;
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}
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int __stdcall
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__check_null_invalid_struct (const void *s, unsigned sz)
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{
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if (!s || IsBadWritePtr ((void *) s, sz))
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return EFAULT;
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return 0;
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}
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int __stdcall
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__check_null_invalid_struct_errno (const void *s, unsigned sz)
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{
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int __err;
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if ((__err = __check_null_invalid_struct (s, sz)))
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set_errno (__err);
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return __err;
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}
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