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Diffstat (limited to 'REORG.TODO/string/tester.c')
| -rw-r--r-- | REORG.TODO/string/tester.c | 1685 |
1 files changed, 1685 insertions, 0 deletions
diff --git a/REORG.TODO/string/tester.c b/REORG.TODO/string/tester.c new file mode 100644 index 0000000000..4b928b4f5e --- /dev/null +++ b/REORG.TODO/string/tester.c @@ -0,0 +1,1685 @@ +/* Tester for string functions. + Copyright (C) 1995-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif + +/* Make sure we don't test the optimized inline functions if we want to + test the real implementation. */ +#if !defined DO_STRING_INLINES +#undef __USE_STRING_INLINES +#endif + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <strings.h> +#include <fcntl.h> +#include <libc-diag.h> + + +#define STREQ(a, b) (strcmp((a), (b)) == 0) + +const char *it = "<UNSET>"; /* Routine name for message routines. */ +size_t errors = 0; + +/* Complain if condition is not true. */ +static void +check (int thing, int number) +{ + if (!thing) + { + printf ("%s flunked test %d\n", it, number); + ++errors; + } +} + +/* Complain if first two args don't strcmp as equal. */ +static void +equal (const char *a, const char *b, int number) +{ + check (a != NULL && b != NULL && STREQ (a, b), number); +} + +char one[50]; +char two[50]; +char *cp; + +static void +test_strcmp (void) +{ + it = "strcmp"; + check (strcmp ("", "") == 0, 1); /* Trivial case. */ + check (strcmp ("a", "a") == 0, 2); /* Identity. */ + check (strcmp ("abc", "abc") == 0, 3); /* Multicharacter. */ + check (strcmp ("abc", "abcd") < 0, 4); /* Length mismatches. */ + check (strcmp ("abcd", "abc") > 0, 5); + check (strcmp ("abcd", "abce") < 0, 6); /* Honest miscompares. */ + check (strcmp ("abce", "abcd") > 0, 7); + check (strcmp ("a\203", "a") > 0, 8); /* Tricky if char signed. */ + check (strcmp ("a\203", "a\003") > 0, 9); + + { + char buf1[0x40], buf2[0x40]; + int i, j; + for (i=0; i < 0x10; i++) + for (j = 0; j < 0x10; j++) + { + int k; + for (k = 0; k < 0x3f; k++) + { + buf1[k] = '0' ^ (k & 4); + buf2[k] = '4' ^ (k & 4); + } + buf1[i] = buf1[0x3f] = 0; + buf2[j] = buf2[0x3f] = 0; + for (k = 0; k < 0xf; k++) + { + int cnum = 0x10+0x10*k+0x100*j+0x1000*i; + check (strcmp (buf1+i,buf2+j) == 0, cnum); + buf1[i+k] = 'A' + i + k; + buf1[i+k+1] = 0; + check (strcmp (buf1+i,buf2+j) > 0, cnum+1); + check (strcmp (buf2+j,buf1+i) < 0, cnum+2); + buf2[j+k] = 'B' + i + k; + buf2[j+k+1] = 0; + check (strcmp (buf1+i,buf2+j) < 0, cnum+3); + check (strcmp (buf2+j,buf1+i) > 0, cnum+4); + buf2[j+k] = 'A' + i + k; + buf1[i] = 'A' + i + 0x80; + check (strcmp (buf1+i,buf2+j) > 0, cnum+5); + check (strcmp (buf2+j,buf1+i) < 0, cnum+6); + buf1[i] = 'A' + i; + } + } + } +} + +#define SIMPLE_COPY(fn, n, str, ntest) \ + do { \ + int __n; \ + char *cp; \ + for (__n = 0; __n < (int) sizeof (one); ++__n) \ + one[__n] = 'Z'; \ + fn (one, str); \ + for (cp = one, __n = 0; __n < n; ++__n, ++cp) \ + check (*cp == '0' + (n % 10), ntest); \ + check (*cp == '\0', ntest); \ + } while (0) + +static void +test_strcpy (void) +{ + int i; + it = "strcpy"; + check (strcpy (one, "abcd") == one, 1); /* Returned value. */ + equal (one, "abcd", 2); /* Basic test. */ + + (void) strcpy (one, "x"); + equal (one, "x", 3); /* Writeover. */ + equal (one+2, "cd", 4); /* Wrote too much? */ + + (void) strcpy (two, "hi there"); + (void) strcpy (one, two); + equal (one, "hi there", 5); /* Basic test encore. */ + equal (two, "hi there", 6); /* Stomped on source? */ + + (void) strcpy (one, ""); + equal (one, "", 7); /* Boundary condition. */ + + for (i = 0; i < 16; i++) + { + (void) strcpy (one + i, "hi there"); /* Unaligned destination. */ + equal (one + i, "hi there", 8 + (i * 2)); + (void) strcpy (two, one + i); /* Unaligned source. */ + equal (two, "hi there", 9 + (i * 2)); + } + + SIMPLE_COPY(strcpy, 0, "", 41); + SIMPLE_COPY(strcpy, 1, "1", 42); + SIMPLE_COPY(strcpy, 2, "22", 43); + SIMPLE_COPY(strcpy, 3, "333", 44); + SIMPLE_COPY(strcpy, 4, "4444", 45); + SIMPLE_COPY(strcpy, 5, "55555", 46); + SIMPLE_COPY(strcpy, 6, "666666", 47); + SIMPLE_COPY(strcpy, 7, "7777777", 48); + SIMPLE_COPY(strcpy, 8, "88888888", 49); + SIMPLE_COPY(strcpy, 9, "999999999", 50); + SIMPLE_COPY(strcpy, 10, "0000000000", 51); + SIMPLE_COPY(strcpy, 11, "11111111111", 52); + SIMPLE_COPY(strcpy, 12, "222222222222", 53); + SIMPLE_COPY(strcpy, 13, "3333333333333", 54); + SIMPLE_COPY(strcpy, 14, "44444444444444", 55); + SIMPLE_COPY(strcpy, 15, "555555555555555", 56); + SIMPLE_COPY(strcpy, 16, "6666666666666666", 57); + + /* Simple test using implicitly coerced `void *' arguments. */ + const void *src = "frobozz"; + void *dst = one; + check (strcpy (dst, src) == dst, 1); + equal (dst, "frobozz", 2); +} + +static void +test_stpcpy (void) +{ + it = "stpcpy"; + check ((stpcpy (one, "a") - one) == 1, 1); + equal (one, "a", 2); + + check ((stpcpy (one, "ab") - one) == 2, 3); + equal (one, "ab", 4); + + check ((stpcpy (one, "abc") - one) == 3, 5); + equal (one, "abc", 6); + + check ((stpcpy (one, "abcd") - one) == 4, 7); + equal (one, "abcd", 8); + + check ((stpcpy (one, "abcde") - one) == 5, 9); + equal (one, "abcde", 10); + + check ((stpcpy (one, "abcdef") - one) == 6, 11); + equal (one, "abcdef", 12); + + check ((stpcpy (one, "abcdefg") - one) == 7, 13); + equal (one, "abcdefg", 14); + + check ((stpcpy (one, "abcdefgh") - one) == 8, 15); + equal (one, "abcdefgh", 16); + + check ((stpcpy (one, "abcdefghi") - one) == 9, 17); + equal (one, "abcdefghi", 18); + + check ((stpcpy (one, "x") - one) == 1, 19); + equal (one, "x", 20); /* Writeover. */ + equal (one+2, "cdefghi", 21); /* Wrote too much? */ + + check ((stpcpy (one, "xx") - one) == 2, 22); + equal (one, "xx", 23); /* Writeover. */ + equal (one+3, "defghi", 24); /* Wrote too much? */ + + check ((stpcpy (one, "xxx") - one) == 3, 25); + equal (one, "xxx", 26); /* Writeover. */ + equal (one+4, "efghi", 27); /* Wrote too much? */ + + check ((stpcpy (one, "xxxx") - one) == 4, 28); + equal (one, "xxxx", 29); /* Writeover. */ + equal (one+5, "fghi", 30); /* Wrote too much? */ + + check ((stpcpy (one, "xxxxx") - one) == 5, 31); + equal (one, "xxxxx", 32); /* Writeover. */ + equal (one+6, "ghi", 33); /* Wrote too much? */ + + check ((stpcpy (one, "xxxxxx") - one) == 6, 34); + equal (one, "xxxxxx", 35); /* Writeover. */ + equal (one+7, "hi", 36); /* Wrote too much? */ + + check ((stpcpy (one, "xxxxxxx") - one) == 7, 37); + equal (one, "xxxxxxx", 38); /* Writeover. */ + equal (one+8, "i", 39); /* Wrote too much? */ + + check ((stpcpy (stpcpy (stpcpy (one, "a"), "b"), "c") - one) == 3, 40); + equal (one, "abc", 41); + equal (one + 4, "xxx", 42); + + SIMPLE_COPY(stpcpy, 0, "", 43); + SIMPLE_COPY(stpcpy, 1, "1", 44); + SIMPLE_COPY(stpcpy, 2, "22", 45); + SIMPLE_COPY(stpcpy, 3, "333", 46); + SIMPLE_COPY(stpcpy, 4, "4444", 47); + SIMPLE_COPY(stpcpy, 5, "55555", 48); + SIMPLE_COPY(stpcpy, 6, "666666", 49); + SIMPLE_COPY(stpcpy, 7, "7777777", 50); + SIMPLE_COPY(stpcpy, 8, "88888888", 51); + SIMPLE_COPY(stpcpy, 9, "999999999", 52); + SIMPLE_COPY(stpcpy, 10, "0000000000", 53); + SIMPLE_COPY(stpcpy, 11, "11111111111", 54); + SIMPLE_COPY(stpcpy, 12, "222222222222", 55); + SIMPLE_COPY(stpcpy, 13, "3333333333333", 56); + SIMPLE_COPY(stpcpy, 14, "44444444444444", 57); + SIMPLE_COPY(stpcpy, 15, "555555555555555", 58); + SIMPLE_COPY(stpcpy, 16, "6666666666666666", 59); +} + +static void +test_stpncpy (void) +{ + it = "stpncpy"; + memset (one, 'x', sizeof (one)); + check (stpncpy (one, "abc", 2) == one + 2, 1); + check (stpncpy (one, "abc", 3) == one + 3, 2); + check (stpncpy (one, "abc", 4) == one + 3, 3); + check (one[3] == '\0' && one[4] == 'x', 4); + check (stpncpy (one, "abcd", 5) == one + 4, 5); + check (one[4] == '\0' && one[5] == 'x', 6); + check (stpncpy (one, "abcd", 6) == one + 4, 7); + check (one[4] == '\0' && one[5] == '\0' && one[6] == 'x', 8); +} + +static void +test_strcat (void) +{ + it = "strcat"; + (void) strcpy (one, "ijk"); + check (strcat (one, "lmn") == one, 1); /* Returned value. */ + equal (one, "ijklmn", 2); /* Basic test. */ + + (void) strcpy (one, "x"); + (void) strcat (one, "yz"); + equal (one, "xyz", 3); /* Writeover. */ + equal (one+4, "mn", 4); /* Wrote too much? */ + + (void) strcpy (one, "gh"); + (void) strcpy (two, "ef"); + (void) strcat (one, two); + equal (one, "ghef", 5); /* Basic test encore. */ + equal (two, "ef", 6); /* Stomped on source? */ + + (void) strcpy (one, ""); + (void) strcat (one, ""); + equal (one, "", 7); /* Boundary conditions. */ + (void) strcpy (one, "ab"); + (void) strcat (one, ""); + equal (one, "ab", 8); + (void) strcpy (one, ""); + (void) strcat (one, "cd"); + equal (one, "cd", 9); + + int ntest = 10; + char buf1[80] __attribute__ ((aligned (16))); + char buf2[32] __attribute__ ((aligned (16))); + for (size_t n1 = 0; n1 < 16; ++n1) + for (size_t n2 = 0; n2 < 16; ++n2) + for (size_t n3 = 0; n3 < 32; ++n3) + { + size_t olderrors = errors; + + memset (buf1, 'b', sizeof (buf1)); + + memset (buf1 + n2, 'a', n3); + buf1[n2 + n3] = '\0'; + strcpy (buf2 + n1, "123"); + + check (strcat (buf1 + n2, buf2 + n1) == buf1 + n2, ntest); + if (errors == olderrors) + for (size_t i = 0; i < sizeof (buf1); ++i) + { + if (i < n2) + check (buf1[i] == 'b', ntest); + else if (i < n2 + n3) + check (buf1[i] == 'a', ntest); + else if (i < n2 + n3 + 3) + check (buf1[i] == "123"[i - (n2 + n3)], ntest); + else if (i == n2 + n3 + 3) + check (buf1[i] == '\0', ntest); + else + check (buf1[i] == 'b', ntest); + + if (errors != olderrors) + { + printf ("n1=%zu, n2=%zu, n3=%zu, buf1=%02hhx", + n1, n2, n3, buf1[0]); + for (size_t j = 1; j < sizeof (buf1); ++j) + printf (",%02hhx", buf1[j]); + putchar_unlocked ('\n'); + break; + } + } + } +} + +static void +test_strncat (void) +{ + /* First test it as strcat, with big counts, then test the count + mechanism. */ + it = "strncat"; + (void) strcpy (one, "ijk"); + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (7, 0) + /* GCC 7 warns about the size passed to strncat being larger than + the size of the buffer; this is deliberately tested here.. */ + DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow="); +#endif + check (strncat (one, "lmn", 99) == one, 1); /* Returned value. */ + DIAG_POP_NEEDS_COMMENT; + equal (one, "ijklmn", 2); /* Basic test. */ + + (void) strcpy (one, "x"); + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (7, 0) + /* GCC 7 warns about the size passed to strncat being larger than + the size of the buffer; this is deliberately tested here.. */ + DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow="); +#endif + (void) strncat (one, "yz", 99); + DIAG_POP_NEEDS_COMMENT; + equal (one, "xyz", 3); /* Writeover. */ + equal (one+4, "mn", 4); /* Wrote too much? */ + + (void) strcpy (one, "gh"); + (void) strcpy (two, "ef"); + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (7, 0) + /* GCC 7 warns about the size passed to strncat being larger than + the size of the buffer; this is deliberately tested here.. */ + DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow="); +#endif + (void) strncat (one, two, 99); + DIAG_POP_NEEDS_COMMENT; + equal (one, "ghef", 5); /* Basic test encore. */ + equal (two, "ef", 6); /* Stomped on source? */ + + (void) strcpy (one, ""); + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (7, 0) + /* GCC 7 warns about the size passed to strncat being larger than + the size of the buffer; this is deliberately tested here.. */ + DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow="); +#endif + (void) strncat (one, "", 99); + DIAG_POP_NEEDS_COMMENT; + equal (one, "", 7); /* Boundary conditions. */ + (void) strcpy (one, "ab"); + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (7, 0) + /* GCC 7 warns about the size passed to strncat being larger than + the size of the buffer; this is deliberately tested here.. */ + DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow="); +#endif + (void) strncat (one, "", 99); + DIAG_POP_NEEDS_COMMENT; + equal (one, "ab", 8); + (void) strcpy (one, ""); + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (7, 0) + /* GCC 7 warns about the size passed to strncat being larger than + the size of the buffer; this is deliberately tested here.. */ + DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow="); +#endif + (void) strncat (one, "cd", 99); + DIAG_POP_NEEDS_COMMENT; + equal (one, "cd", 9); + + (void) strcpy (one, "ab"); + (void) strncat (one, "cdef", 2); + equal (one, "abcd", 10); /* Count-limited. */ + + (void) strncat (one, "gh", 0); + equal (one, "abcd", 11); /* Zero count. */ + + (void) strncat (one, "gh", 2); + equal (one, "abcdgh", 12); /* Count and length equal. */ + + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (7, 0) + /* GCC 7 warns about the size passed to strncat being larger than + the size of the buffer; this is deliberately tested here.. */ + DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow="); +#endif + (void) strncat (one, "ij", (size_t)-1); /* set sign bit in count */ + DIAG_POP_NEEDS_COMMENT; + equal (one, "abcdghij", 13); + + int ntest = 14; + char buf1[80] __attribute__ ((aligned (16))); + char buf2[32] __attribute__ ((aligned (16))); + for (size_t n1 = 0; n1 < 16; ++n1) + for (size_t n2 = 0; n2 < 16; ++n2) + for (size_t n3 = 0; n3 < 32; ++n3) + for (size_t n4 = 0; n4 < 16; ++n4) + { + size_t olderrors = errors; + + memset (buf1, 'b', sizeof (buf1)); + + memset (buf1 + n2, 'a', n3); + buf1[n2 + n3] = '\0'; + strcpy (buf2 + n1, "123"); + + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (7, 0) + /* GCC 7 warns about the size passed to strncat being + larger than the size of the buffer; this is + deliberately tested here.. */ + DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow="); +#endif + check (strncat (buf1 + n2, buf2 + n1, ~((size_t) 0) - n4) + == buf1 + n2, ntest); + DIAG_POP_NEEDS_COMMENT; + if (errors == olderrors) + for (size_t i = 0; i < sizeof (buf1); ++i) + { + if (i < n2) + check (buf1[i] == 'b', ntest); + else if (i < n2 + n3) + check (buf1[i] == 'a', ntest); + else if (i < n2 + n3 + 3) + check (buf1[i] == "123"[i - (n2 + n3)], ntest); + else if (i == n2 + n3 + 3) + check (buf1[i] == '\0', ntest); + else + check (buf1[i] == 'b', ntest); + + if (errors != olderrors) + { + printf ("n1=%zu, n2=%zu, n3=%zu, n4=%zu, buf1=%02hhx", + n1, n2, n3, n4, buf1[0]); + for (size_t j = 1; j < sizeof (buf1); ++j) + printf (",%02hhx", buf1[j]); + putchar_unlocked ('\n'); + break; + } + } + } +} + +static void +test_strncmp (void) +{ + /* First test as strcmp with big counts, then test count code. */ + it = "strncmp"; + check (strncmp ("", "", 99) == 0, 1); /* Trivial case. */ + check (strncmp ("a", "a", 99) == 0, 2); /* Identity. */ + check (strncmp ("abc", "abc", 99) == 0, 3); /* Multicharacter. */ + check (strncmp ("abc", "abcd", 99) < 0, 4); /* Length unequal. */ + check (strncmp ("abcd", "abc", 99) > 0, 5); + check (strncmp ("abcd", "abce", 99) < 0, 6); /* Honestly unequal. */ + check (strncmp ("abce", "abcd", 99) > 0, 7); + check (strncmp ("a\203", "a", 2) > 0, 8); /* Tricky if '\203' < 0 */ + check (strncmp ("a\203", "a\003", 2) > 0, 9); + check (strncmp ("abce", "abcd", 3) == 0, 10); /* Count limited. */ + check (strncmp ("abce", "abc", 3) == 0, 11); /* Count == length. */ + check (strncmp ("abcd", "abce", 4) < 0, 12); /* Nudging limit. */ + check (strncmp ("abc", "def", 0) == 0, 13); /* Zero count. */ + check (strncmp ("abc", "", (size_t)-1) > 0, 14); /* set sign bit in count */ + check (strncmp ("abc", "abc", (size_t)-2) == 0, 15); +} + +static void +test_strncpy (void) +{ + /* Testing is a bit different because of odd semantics. */ + it = "strncpy"; + check (strncpy (one, "abc", 4) == one, 1); /* Returned value. */ + equal (one, "abc", 2); /* Did the copy go right? */ + + (void) strcpy (one, "abcdefgh"); + (void) strncpy (one, "xyz", 2); + equal (one, "xycdefgh", 3); /* Copy cut by count. */ + + (void) strcpy (one, "abcdefgh"); + (void) strncpy (one, "xyz", 3); /* Copy cut just before NUL. */ + equal (one, "xyzdefgh", 4); + + (void) strcpy (one, "abcdefgh"); + (void) strncpy (one, "xyz", 4); /* Copy just includes NUL. */ + equal (one, "xyz", 5); + equal (one+4, "efgh", 6); /* Wrote too much? */ + + (void) strcpy (one, "abcdefgh"); + (void) strncpy (one, "xyz", 5); /* Copy includes padding. */ + equal (one, "xyz", 7); + equal (one+4, "", 8); + equal (one+5, "fgh", 9); + + (void) strcpy (one, "abc"); + (void) strncpy (one, "xyz", 0); /* Zero-length copy. */ + equal (one, "abc", 10); + + (void) strncpy (one, "", 2); /* Zero-length source. */ + equal (one, "", 11); + equal (one+1, "", 12); + equal (one+2, "c", 13); + + (void) strcpy (one, "hi there"); + (void) strncpy (two, one, 9); + equal (two, "hi there", 14); /* Just paranoia. */ + equal (one, "hi there", 15); /* Stomped on source? */ +} + +static void +test_strlen (void) +{ + it = "strlen"; + check (strlen ("") == 0, 1); /* Empty. */ + check (strlen ("a") == 1, 2); /* Single char. */ + check (strlen ("abcd") == 4, 3); /* Multiple chars. */ + { + char buf[4096]; + int i; + char *p; + for (i=0; i < 0x100; i++) + { + p = (char *) ((unsigned long int)(buf + 0xff) & ~0xff) + i; + strcpy (p, "OK"); + strcpy (p+3, "BAD/WRONG"); + check (strlen (p) == 2, 4+i); + } + } +} + +static void +test_strnlen (void) +{ + it = "strnlen"; + check (strnlen ("", 10) == 0, 1); /* Empty. */ + check (strnlen ("a", 10) == 1, 2); /* Single char. */ + check (strnlen ("abcd", 10) == 4, 3); /* Multiple chars. */ + check (strnlen ("foo", (size_t) -1) == 3, 4); /* limits of n. */ + check (strnlen ("abcd", 0) == 0, 5); /* Restricted. */ + check (strnlen ("abcd", 1) == 1, 6); /* Restricted. */ + check (strnlen ("abcd", 2) == 2, 7); /* Restricted. */ + check (strnlen ("abcd", 3) == 3, 8); /* Restricted. */ + check (strnlen ("abcd", 4) == 4, 9); /* Restricted. */ + + char buf[4096]; + for (int i = 0; i < 0x100; ++i) + { + char *p = (char *) ((unsigned long int)(buf + 0xff) & ~0xff) + i; + strcpy (p, "OK"); + strcpy (p + 3, "BAD/WRONG"); + check (strnlen (p, 100) == 2, 10 + i); + } +} + +static void +test_strchr (void) +{ + it = "strchr"; + check (strchr ("abcd", 'z') == NULL, 1); /* Not found. */ + (void) strcpy (one, "abcd"); + check (strchr (one, 'c') == one+2, 2); /* Basic test. */ + check (strchr (one, 'd') == one+3, 3); /* End of string. */ + check (strchr (one, 'a') == one, 4); /* Beginning. */ + check (strchr (one, '\0') == one+4, 5); /* Finding NUL. */ + (void) strcpy (one, "ababa"); + check (strchr (one, 'b') == one+1, 6); /* Finding first. */ + (void) strcpy (one, ""); + check (strchr (one, 'b') == NULL, 7); /* Empty string. */ + check (strchr (one, '\0') == one, 8); /* NUL in empty string. */ + { + char buf[4096]; + int i; + char *p; + for (i=0; i < 0x100; i++) + { + p = (char *) ((unsigned long int) (buf + 0xff) & ~0xff) + i; + strcpy (p, "OK"); + strcpy (p+3, "BAD/WRONG"); + check (strchr (p, '/') == NULL, 9+i); + } + } +} + +static void +test_strchrnul (void) +{ + const char *os; + it = "strchrnul"; + cp = strchrnul ((os = "abcd"), 'z'); + check (*cp == '\0', 1); /* Not found. */ + check (cp == os + 4, 2); + (void) strcpy (one, "abcd"); + check (strchrnul (one, 'c') == one+2, 3); /* Basic test. */ + check (strchrnul (one, 'd') == one+3, 4); /* End of string. */ + check (strchrnul (one, 'a') == one, 5); /* Beginning. */ + check (strchrnul (one, '\0') == one+4, 6); /* Finding NUL. */ + (void) strcpy (one, "ababa"); + check (strchrnul (one, 'b') == one+1, 7); /* Finding first. */ + (void) strcpy (one, ""); + check (strchrnul (one, 'b') == one, 8); /* Empty string. */ + check (strchrnul (one, '\0') == one, 9); /* NUL in empty string. */ + { + char buf[4096]; + int i; + char *p; + for (i=0; i < 0x100; i++) + { + p = (char *) ((unsigned long int) (buf + 0xff) & ~0xff) + i; + strcpy (p, "OK"); + strcpy (p+3, "BAD/WRONG"); + cp = strchrnul (p, '/'); + check (*cp == '\0', 9+2*i); + check (cp == p+2, 10+2*i); + } + } +} + +static void +test_rawmemchr (void) +{ + it = "rawmemchr"; + (void) strcpy (one, "abcd"); + check (rawmemchr (one, 'c') == one+2, 1); /* Basic test. */ + check (rawmemchr (one, 'd') == one+3, 2); /* End of string. */ + check (rawmemchr (one, 'a') == one, 3); /* Beginning. */ + check (rawmemchr (one, '\0') == one+4, 4); /* Finding NUL. */ + (void) strcpy (one, "ababa"); + check (rawmemchr (one, 'b') == one+1, 5); /* Finding first. */ + (void) strcpy (one, ""); + check (rawmemchr (one, '\0') == one, 6); /* NUL in empty string. */ + { + char buf[4096]; + int i; + char *p; + for (i=0; i < 0x100; i++) + { + p = (char *) ((unsigned long int) (buf + 0xff) & ~0xff) + i; + strcpy (p, "OK"); + strcpy (p+3, "BAD/WRONG"); + check (rawmemchr (p, 'R') == p+8, 6+i); + } + } +} + +static void +test_index (void) +{ + it = "index"; + check (index ("abcd", 'z') == NULL, 1); /* Not found. */ + (void) strcpy (one, "abcd"); + check (index (one, 'c') == one+2, 2); /* Basic test. */ + check (index (one, 'd') == one+3, 3); /* End of string. */ + check (index (one, 'a') == one, 4); /* Beginning. */ + check (index (one, '\0') == one+4, 5); /* Finding NUL. */ + (void) strcpy (one, "ababa"); + check (index (one, 'b') == one+1, 6); /* Finding first. */ + (void) strcpy (one, ""); + check (index (one, 'b') == NULL, 7); /* Empty string. */ + check (index (one, '\0') == one, 8); /* NUL in empty string. */ +} + +static void +test_strrchr (void) +{ + it = "strrchr"; + check (strrchr ("abcd", 'z') == NULL, 1); /* Not found. */ + (void) strcpy (one, "abcd"); + check (strrchr (one, 'c') == one+2, 2); /* Basic test. */ + check (strrchr (one, 'd') == one+3, 3); /* End of string. */ + check (strrchr (one, 'a') == one, 4); /* Beginning. */ + check (strrchr (one, '\0') == one+4, 5); /* Finding NUL. */ + (void) strcpy (one, "ababa"); + check (strrchr (one, 'b') == one+3, 6); /* Finding last. */ + (void) strcpy (one, ""); + check (strrchr (one, 'b') == NULL, 7); /* Empty string. */ + check (strrchr (one, '\0') == one, 8); /* NUL in empty string. */ + { + char buf[4096]; + int i; + char *p; + for (i=0; i < 0x100; i++) + { + p = (char *) ((unsigned long int) (buf + 0xff) & ~0xff) + i; + strcpy (p, "OK"); + strcpy (p+3, "BAD/WRONG"); + check (strrchr (p, '/') == NULL, 9+i); + } + } +} + +static void +test_memrchr (void) +{ + size_t l; + it = "memrchr"; + check (memrchr ("abcd", 'z', 5) == NULL, 1); /* Not found. */ + (void) strcpy (one, "abcd"); + l = strlen (one) + 1; + check (memrchr (one, 'c', l) == one+2, 2); /* Basic test. */ + check (memrchr (one, 'd', l) == one+3, 3); /* End of string. */ + check (memrchr (one, 'a', l) == one, 4); /* Beginning. */ + check (memrchr (one, '\0', l) == one+4, 5); /* Finding NUL. */ + (void) strcpy (one, "ababa"); + l = strlen (one) + 1; + check (memrchr (one, 'b', l) == one+3, 6); /* Finding last. */ + (void) strcpy (one, ""); + l = strlen (one) + 1; + check (memrchr (one, 'b', l) == NULL, 7); /* Empty string. */ + check (memrchr (one, '\0', l) == one, 8); /* NUL in empty string. */ + + /* now test all possible alignment and length combinations to catch + bugs due to unrolled loops (assuming unrolling is limited to no + more than 128 byte chunks: */ + { + char buf[128 + sizeof(long)]; + long align, len, i, pos, n = 9; + + for (align = 0; align < (long) sizeof(long); ++align) { + for (len = 0; len < (long) (sizeof(buf) - align); ++len) { + for (i = 0; i < len; ++i) + buf[align + i] = 'x'; /* don't depend on memset... */ + + for (pos = len - 1; pos >= 0; --pos) { +#if 0 + printf("align %d, len %d, pos %d\n", align, len, pos); +#endif + check(memrchr(buf + align, 'x', len) == buf + align + pos, n++); + check(memrchr(buf + align + pos + 1, 'x', len - (pos + 1)) == NULL, + n++); + buf[align + pos] = '-'; + } + } + } + } +} + +static void +test_rindex (void) +{ + it = "rindex"; + check (rindex ("abcd", 'z') == NULL, 1); /* Not found. */ + (void) strcpy (one, "abcd"); + check (rindex (one, 'c') == one+2, 2); /* Basic test. */ + check (rindex (one, 'd') == one+3, 3); /* End of string. */ + check (rindex (one, 'a') == one, 4); /* Beginning. */ + check (rindex (one, '\0') == one+4, 5); /* Finding NUL. */ + (void) strcpy (one, "ababa"); + check (rindex (one, 'b') == one+3, 6); /* Finding last. */ + (void) strcpy (one, ""); + check (rindex (one, 'b') == NULL, 7); /* Empty string. */ + check (rindex (one, '\0') == one, 8); /* NUL in empty string. */ +} + +static void +test_strpbrk (void) +{ + it = "strpbrk"; + check(strpbrk("abcd", "z") == NULL, 1); /* Not found. */ + (void) strcpy(one, "abcd"); + check(strpbrk(one, "c") == one+2, 2); /* Basic test. */ + check(strpbrk(one, "d") == one+3, 3); /* End of string. */ + check(strpbrk(one, "a") == one, 4); /* Beginning. */ + check(strpbrk(one, "") == NULL, 5); /* Empty search list. */ + check(strpbrk(one, "cb") == one+1, 6); /* Multiple search. */ + (void) strcpy(one, "abcabdea"); + check(strpbrk(one, "b") == one+1, 7); /* Finding first. */ + check(strpbrk(one, "cb") == one+1, 8); /* With multiple search. */ + check(strpbrk(one, "db") == one+1, 9); /* Another variant. */ + (void) strcpy(one, ""); + check(strpbrk(one, "bc") == NULL, 10); /* Empty string. */ + (void) strcpy(one, ""); + check(strpbrk(one, "bcd") == NULL, 11); /* Empty string. */ + (void) strcpy(one, ""); + check(strpbrk(one, "bcde") == NULL, 12); /* Empty string. */ + check(strpbrk(one, "") == NULL, 13); /* Both strings empty. */ + (void) strcpy(one, "abcabdea"); + check(strpbrk(one, "befg") == one+1, 14); /* Finding first. */ + check(strpbrk(one, "cbr") == one+1, 15); /* With multiple search. */ + check(strpbrk(one, "db") == one+1, 16); /* Another variant. */ + check(strpbrk(one, "efgh") == one+6, 17); /* And yet another. */ +} + +static void +test_strstr (void) +{ + it = "strstr"; + check(strstr("abcd", "z") == NULL, 1); /* Not found. */ + check(strstr("abcd", "abx") == NULL, 2); /* Dead end. */ + (void) strcpy(one, "abcd"); + check(strstr(one, "c") == one+2, 3); /* Basic test. */ + check(strstr(one, "bc") == one+1, 4); /* Multichar. */ + check(strstr(one, "d") == one+3, 5); /* End of string. */ + check(strstr(one, "cd") == one+2, 6); /* Tail of string. */ + check(strstr(one, "abc") == one, 7); /* Beginning. */ + check(strstr(one, "abcd") == one, 8); /* Exact match. */ + check(strstr(one, "abcde") == NULL, 9); /* Too long. */ + check(strstr(one, "de") == NULL, 10); /* Past end. */ + check(strstr(one, "") == one, 11); /* Finding empty. */ + (void) strcpy(one, "ababa"); + check(strstr(one, "ba") == one+1, 12); /* Finding first. */ + (void) strcpy(one, ""); + check(strstr(one, "b") == NULL, 13); /* Empty string. */ + check(strstr(one, "") == one, 14); /* Empty in empty string. */ + (void) strcpy(one, "bcbca"); + check(strstr(one, "bca") == one+2, 15); /* False start. */ + (void) strcpy(one, "bbbcabbca"); + check(strstr(one, "bbca") == one+1, 16); /* With overlap. */ +} + +static void +test_strspn (void) +{ + it = "strspn"; + check(strspn("abcba", "abc") == 5, 1); /* Whole string. */ + check(strspn("abcba", "ab") == 2, 2); /* Partial. */ + check(strspn("abc", "qx") == 0, 3); /* None. */ + check(strspn("", "ab") == 0, 4); /* Null string. */ + check(strspn("abc", "") == 0, 5); /* Null search list. */ +} + +static void +test_strcspn (void) +{ + it = "strcspn"; + check(strcspn("abcba", "qx") == 5, 1); /* Whole string. */ + check(strcspn("abcba", "cx") == 2, 2); /* Partial. */ + check(strcspn("abc", "abc") == 0, 3); /* None. */ + check(strcspn("", "ab") == 0, 4); /* Null string. */ + check(strcspn("abc", "") == 3, 5); /* Null search list. */ +} + +static void +test_strtok (void) +{ + it = "strtok"; + (void) strcpy(one, "first, second, third"); + equal(strtok(one, ", "), "first", 1); /* Basic test. */ + equal(one, "first", 2); + equal(strtok((char *)NULL, ", "), "second", 3); + equal(strtok((char *)NULL, ", "), "third", 4); + check(strtok((char *)NULL, ", ") == NULL, 5); + (void) strcpy(one, ", first, "); + equal(strtok(one, ", "), "first", 6); /* Extra delims, 1 tok. */ + check(strtok((char *)NULL, ", ") == NULL, 7); + (void) strcpy(one, "1a, 1b; 2a, 2b"); + equal(strtok(one, ", "), "1a", 8); /* Changing delim lists. */ + equal(strtok((char *)NULL, "; "), "1b", 9); + equal(strtok((char *)NULL, ", "), "2a", 10); + (void) strcpy(two, "x-y"); + equal(strtok(two, "-"), "x", 11); /* New string before done. */ + equal(strtok((char *)NULL, "-"), "y", 12); + check(strtok((char *)NULL, "-") == NULL, 13); + (void) strcpy(one, "a,b, c,, ,d"); + equal(strtok(one, ", "), "a", 14); /* Different separators. */ + equal(strtok((char *)NULL, ", "), "b", 15); + equal(strtok((char *)NULL, " ,"), "c", 16); /* Permute list too. */ + equal(strtok((char *)NULL, " ,"), "d", 17); + check(strtok((char *)NULL, ", ") == NULL, 18); + check(strtok((char *)NULL, ", ") == NULL, 19); /* Persistence. */ + (void) strcpy(one, ", "); + check(strtok(one, ", ") == NULL, 20); /* No tokens. */ + (void) strcpy(one, ""); + check(strtok(one, ", ") == NULL, 21); /* Empty string. */ + (void) strcpy(one, "abc"); + equal(strtok(one, ", "), "abc", 22); /* No delimiters. */ + check(strtok((char *)NULL, ", ") == NULL, 23); + (void) strcpy(one, "abc"); + equal(strtok(one, ""), "abc", 24); /* Empty delimiter list. */ + check(strtok((char *)NULL, "") == NULL, 25); + (void) strcpy(one, "abcdefgh"); + (void) strcpy(one, "a,b,c"); + equal(strtok(one, ","), "a", 26); /* Basics again... */ + equal(strtok((char *)NULL, ","), "b", 27); + equal(strtok((char *)NULL, ","), "c", 28); + check(strtok((char *)NULL, ",") == NULL, 29); + equal(one+6, "gh", 30); /* Stomped past end? */ + equal(one, "a", 31); /* Stomped old tokens? */ + equal(one+2, "b", 32); + equal(one+4, "c", 33); +} + +static void +test_strtok_r (void) +{ + it = "strtok_r"; + (void) strcpy(one, "first, second, third"); + cp = NULL; /* Always initialize cp to make sure it doesn't point to some old data. */ + equal(strtok_r(one, ", ", &cp), "first", 1); /* Basic test. */ + equal(one, "first", 2); + equal(strtok_r((char *)NULL, ", ", &cp), "second", 3); + equal(strtok_r((char *)NULL, ", ", &cp), "third", 4); + check(strtok_r((char *)NULL, ", ", &cp) == NULL, 5); + (void) strcpy(one, ", first, "); + cp = NULL; + equal(strtok_r(one, ", ", &cp), "first", 6); /* Extra delims, 1 tok. */ + check(strtok_r((char *)NULL, ", ", &cp) == NULL, 7); + (void) strcpy(one, "1a, 1b; 2a, 2b"); + cp = NULL; + equal(strtok_r(one, ", ", &cp), "1a", 8); /* Changing delim lists. */ + equal(strtok_r((char *)NULL, "; ", &cp), "1b", 9); + equal(strtok_r((char *)NULL, ", ", &cp), "2a", 10); + (void) strcpy(two, "x-y"); + cp = NULL; + equal(strtok_r(two, "-", &cp), "x", 11); /* New string before done. */ + equal(strtok_r((char *)NULL, "-", &cp), "y", 12); + check(strtok_r((char *)NULL, "-", &cp) == NULL, 13); + (void) strcpy(one, "a,b, c,, ,d"); + cp = NULL; + equal(strtok_r(one, ", ", &cp), "a", 14); /* Different separators. */ + equal(strtok_r((char *)NULL, ", ", &cp), "b", 15); + equal(strtok_r((char *)NULL, " ,", &cp), "c", 16); /* Permute list too. */ + equal(strtok_r((char *)NULL, " ,", &cp), "d", 17); + check(strtok_r((char *)NULL, ", ", &cp) == NULL, 18); + check(strtok_r((char *)NULL, ", ", &cp) == NULL, 19); /* Persistence. */ + (void) strcpy(one, ", "); + cp = NULL; + check(strtok_r(one, ", ", &cp) == NULL, 20); /* No tokens. */ + (void) strcpy(one, ""); + cp = NULL; + check(strtok_r(one, ", ", &cp) == NULL, 21); /* Empty string. */ + check(strtok_r((char *)NULL, ", ", &cp) == NULL, 22); /* Persistence. */ + (void) strcpy(one, "abc"); + cp = NULL; + equal(strtok_r(one, ", ", &cp), "abc", 23); /* No delimiters. */ + check(strtok_r((char *)NULL, ", ", &cp) == NULL, 24); + (void) strcpy(one, "abc"); + cp = NULL; + equal(strtok_r(one, "", &cp), "abc", 25); /* Empty delimiter list. */ + check(strtok_r((char *)NULL, "", &cp) == NULL, 26); + (void) strcpy(one, "abcdefgh"); + (void) strcpy(one, "a,b,c"); + cp = NULL; + equal(strtok_r(one, ",", &cp), "a", 27); /* Basics again... */ + equal(strtok_r((char *)NULL, ",", &cp), "b", 28); + equal(strtok_r((char *)NULL, ",", &cp), "c", 29); + check(strtok_r((char *)NULL, ",", &cp) == NULL, 30); + equal(one+6, "gh", 31); /* Stomped past end? */ + equal(one, "a", 32); /* Stomped old tokens? */ + equal(one+2, "b", 33); + equal(one+4, "c", 34); + strcpy (one, ":::"); + cp = NULL; + check (strtok_r (one, ":", &cp) == NULL, 35); /* Must store pointer in cp. */ + check (strtok_r (NULL, ":", &cp) == NULL, 36); +} + +static void +test_strsep (void) +{ + char *ptr; + it = "strsep"; + cp = strcpy(one, "first, second, third"); + equal(strsep(&cp, ", "), "first", 1); /* Basic test. */ + equal(one, "first", 2); + equal(strsep(&cp, ", "), "", 3); + equal(strsep(&cp, ", "), "second", 4); + equal(strsep(&cp, ", "), "", 5); + equal(strsep(&cp, ", "), "third", 6); + check(strsep(&cp, ", ") == NULL, 7); + cp = strcpy(one, ", first, "); + equal(strsep(&cp, ", "), "", 8); + equal(strsep(&cp, ", "), "", 9); + equal(strsep(&cp, ", "), "first", 10); /* Extra delims, 1 tok. */ + equal(strsep(&cp, ", "), "", 11); + equal(strsep(&cp, ", "), "", 12); + check(strsep(&cp, ", ") == NULL, 13); + cp = strcpy(one, "1a, 1b; 2a, 2b"); + equal(strsep(&cp, ", "), "1a", 14); /* Changing delim lists. */ + equal(strsep(&cp, ", "), "", 15); + equal(strsep(&cp, "; "), "1b", 16); + equal(strsep(&cp, ", "), "", 17); + equal(strsep(&cp, ", "), "2a", 18); + cp = strcpy(two, "x-y"); + equal(strsep(&cp, "-"), "x", 19); /* New string before done. */ + equal(strsep(&cp, "-"), "y", 20); + check(strsep(&cp, "-") == NULL, 21); + cp = strcpy(one, "a,b, c,, ,d "); + equal(strsep(&cp, ", "), "a", 22); /* Different separators. */ + equal(strsep(&cp, ", "), "b", 23); + equal(strsep(&cp, " ,"), "", 24); + equal(strsep(&cp, " ,"), "c", 25); /* Permute list too. */ + equal(strsep(&cp, " ,"), "", 26); + equal(strsep(&cp, " ,"), "", 27); + equal(strsep(&cp, " ,"), "", 28); + equal(strsep(&cp, " ,"), "d", 29); + equal(strsep(&cp, " ,"), "", 30); + check(strsep(&cp, ", ") == NULL, 31); + check(strsep(&cp, ", ") == NULL, 32); /* Persistence. */ + cp = strcpy(one, ", "); + equal(strsep(&cp, ", "), "", 33); + equal(strsep(&cp, ", "), "", 34); + equal(strsep(&cp, ", "), "", 35); + check(strsep(&cp, ", ") == NULL, 36); /* No tokens. */ + cp = strcpy(one, ""); + equal(strsep(&cp, ", "), "", 37); + check(strsep(&cp, ", ") == NULL, 38); /* Empty string. */ + cp = strcpy(one, "abc"); + equal(strsep(&cp, ", "), "abc", 39); /* No delimiters. */ + check(strsep(&cp, ", ") == NULL, 40); + cp = strcpy(one, "abc"); + equal(strsep(&cp, ""), "abc", 41); /* Empty delimiter list. */ + check(strsep(&cp, "") == NULL, 42); + (void) strcpy(one, "abcdefgh"); + cp = strcpy(one, "a,b,c"); + equal(strsep(&cp, ","), "a", 43); /* Basics again... */ + equal(strsep(&cp, ","), "b", 44); + equal(strsep(&cp, ","), "c", 45); + check(strsep(&cp, ",") == NULL, 46); + equal(one+6, "gh", 47); /* Stomped past end? */ + equal(one, "a", 48); /* Stomped old tokens? */ + equal(one+2, "b", 49); + equal(one+4, "c", 50); + + { + char text[] = "This,is,a,test"; + char *list = strdupa (text); + equal (strsep (&list, ","), "This", 51); + equal (strsep (&list, ","), "is", 52); + equal (strsep (&list, ","), "a", 53); + equal (strsep (&list, ","), "test", 54); + check (strsep (&list, ",") == NULL, 55); + } + + cp = strcpy(one, "a,b, c,, ,d,"); + equal(strsep(&cp, ","), "a", 56); /* Different separators. */ + equal(strsep(&cp, ","), "b", 57); + equal(strsep(&cp, ","), " c", 58); /* Permute list too. */ + equal(strsep(&cp, ","), "", 59); + equal(strsep(&cp, ","), " ", 60); + equal(strsep(&cp, ","), "d", 61); + equal(strsep(&cp, ","), "", 62); + check(strsep(&cp, ",") == NULL, 63); + check(strsep(&cp, ",") == NULL, 64); /* Persistence. */ + + cp = strcpy(one, "a,b, c,, ,d,"); + equal(strsep(&cp, "xy,"), "a", 65); /* Different separators. */ + equal(strsep(&cp, "x,y"), "b", 66); + equal(strsep(&cp, ",xy"), " c", 67); /* Permute list too. */ + equal(strsep(&cp, "xy,"), "", 68); + equal(strsep(&cp, "x,y"), " ", 69); + equal(strsep(&cp, ",xy"), "d", 70); + equal(strsep(&cp, "xy,"), "", 71); + check(strsep(&cp, "x,y") == NULL, 72); + check(strsep(&cp, ",xy") == NULL, 73); /* Persistence. */ + + cp = strcpy(one, "ABC"); + one[4] = ':'; + equal(strsep(&cp, "C"), "AB", 74); /* Access beyond NUL. */ + ptr = strsep(&cp, ":"); + equal(ptr, "", 75); + check(ptr == one + 3, 76); + check(cp == NULL, 77); + + cp = strcpy(one, "ABC"); + one[4] = ':'; + equal(strsep(&cp, "CD"), "AB", 78); /* Access beyond NUL. */ + ptr = strsep(&cp, ":."); + equal(ptr, "", 79); + check(ptr == one + 3, 80); + + cp = strcpy(one, "ABC"); /* No token in string. */ + equal(strsep(&cp, ","), "ABC", 81); + check(cp == NULL, 82); + + *one = '\0'; /* Empty string. */ + cp = one; + ptr = strsep(&cp, ","); + equal(ptr, "", 83); + check(ptr == one, 84); + check(cp == NULL, 85); + + *one = '\0'; /* Empty string and no token. */ + cp = one; + ptr = strsep(&cp, ""); + equal(ptr, "", 86); + check(ptr == one , 87); + check(cp == NULL, 88); +} + +static void +test_memcmp (void) +{ + int cnt = 1; + char one[21]; + char two[21]; + + it = "memcmp"; + check(memcmp("a", "a", 1) == 0, cnt++); /* Identity. */ + check(memcmp("abc", "abc", 3) == 0, cnt++); /* Multicharacter. */ + check(memcmp("abcd", "abcf", 4) < 0, cnt++); /* Honestly unequal. */ + check(memcmp("abcf", "abcd", 4) > 0, cnt++); + check(memcmp("alph", "cold", 4) < 0, cnt++); + check(memcmp("a\203", "a\003", 2) > 0, cnt++); + check(memcmp("a\003", "a\203", 2) < 0, cnt++); + check(memcmp("a\003bc", "a\203bc", 2) < 0, cnt++); + check(memcmp("abc\203", "abc\003", 4) > 0, cnt++); + check(memcmp("abc\003", "abc\203", 4) < 0, cnt++); + check(memcmp("abcf", "abcd", 3) == 0, cnt++); /* Count limited. */ + check(memcmp("abc", "def", 0) == 0, cnt++); /* Zero count. */ + /* Comparisons with shifting 4-byte boundaries. */ + for (int i = 0; i < 4; ++i) + { + char *a = one + i; + char *b = two + i; + strncpy(a, "--------11112222", 16); + strncpy(b, "--------33334444", 16); + check(memcmp(b, a, 16) > 0, cnt++); + check(memcmp(a, b, 16) < 0, cnt++); + } +} + +static void +test_memchr (void) +{ + it = "memchr"; + check(memchr("abcd", 'z', 4) == NULL, 1); /* Not found. */ + (void) strcpy(one, "abcd"); + check(memchr(one, 'c', 4) == one+2, 2); /* Basic test. */ + check(memchr(one, ~0xff|'c', 4) == one+2, 2); /* ignore highorder bits. */ + check(memchr(one, 'd', 4) == one+3, 3); /* End of string. */ + check(memchr(one, 'a', 4) == one, 4); /* Beginning. */ + check(memchr(one, '\0', 5) == one+4, 5); /* Finding NUL. */ + (void) strcpy(one, "ababa"); + check(memchr(one, 'b', 5) == one+1, 6); /* Finding first. */ + check(memchr(one, 'b', 0) == NULL, 7); /* Zero count. */ + check(memchr(one, 'a', 1) == one, 8); /* Singleton case. */ + (void) strcpy(one, "a\203b"); + check(memchr(one, 0203, 3) == one+1, 9); /* Unsignedness. */ + + /* now test all possible alignment and length combinations to catch + bugs due to unrolled loops (assuming unrolling is limited to no + more than 128 byte chunks: */ + { + char buf[128 + sizeof(long)]; + long align, len, i, pos; + + for (align = 0; align < (long) sizeof(long); ++align) { + for (len = 0; len < (long) (sizeof(buf) - align); ++len) { + for (i = 0; i < len; ++i) { + buf[align + i] = 'x'; /* don't depend on memset... */ + } + for (pos = 0; pos < len; ++pos) { +#if 0 + printf("align %d, len %d, pos %d\n", align, len, pos); +#endif + check(memchr(buf + align, 'x', len) == buf + align + pos, 10); + check(memchr(buf + align, 'x', pos) == NULL, 11); + buf[align + pos] = '-'; + } + } + } + } +} + +static void +test_memcpy (void) +{ + int i; + it = "memcpy"; + check(memcpy(one, "abc", 4) == one, 1); /* Returned value. */ + equal(one, "abc", 2); /* Did the copy go right? */ + + (void) strcpy(one, "abcdefgh"); + (void) memcpy(one+1, "xyz", 2); + equal(one, "axydefgh", 3); /* Basic test. */ + + (void) strcpy(one, "abc"); + (void) memcpy(one, "xyz", 0); + equal(one, "abc", 4); /* Zero-length copy. */ + + (void) strcpy(one, "hi there"); + (void) strcpy(two, "foo"); + (void) memcpy(two, one, 9); + equal(two, "hi there", 5); /* Just paranoia. */ + equal(one, "hi there", 6); /* Stomped on source? */ + + for (i = 0; i < 16; i++) + { + const char *x = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; + strcpy (one, x); + check (memcpy (one + i, "hi there", 9) == one + i, + 7 + (i * 6)); /* Unaligned destination. */ + check (memcmp (one, x, i) == 0, 8 + (i * 6)); /* Wrote under? */ + equal (one + i, "hi there", 9 + (i * 6)); + check (one[i + 9] == 'x', 10 + (i * 6)); /* Wrote over? */ + check (memcpy (two, one + i, 9) == two, + 11 + (i * 6)); /* Unaligned source. */ + equal (two, "hi there", 12 + (i * 6)); + } +} + +static void +test_mempcpy (void) +{ + int i; + it = "mempcpy"; + check(mempcpy(one, "abc", 4) == one + 4, 1); /* Returned value. */ + equal(one, "abc", 2); /* Did the copy go right? */ + + (void) strcpy(one, "abcdefgh"); + (void) mempcpy(one+1, "xyz", 2); + equal(one, "axydefgh", 3); /* Basic test. */ + + (void) strcpy(one, "abc"); + (void) mempcpy(one, "xyz", 0); + equal(one, "abc", 4); /* Zero-length copy. */ + + (void) strcpy(one, "hi there"); + (void) strcpy(two, "foo"); + (void) mempcpy(two, one, 9); + equal(two, "hi there", 5); /* Just paranoia. */ + equal(one, "hi there", 6); /* Stomped on source? */ + + for (i = 0; i < 16; i++) + { + const char *x = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"; + strcpy (one, x); + check (mempcpy (one + i, "hi there", 9) == one + i + 9, + 7 + (i * 6)); /* Unaligned destination. */ + check (memcmp (one, x, i) == 0, 8 + (i * 6)); /* Wrote under? */ + equal (one + i, "hi there", 9 + (i * 6)); + check (one[i + 9] == 'x', 10 + (i * 6)); /* Wrote over? */ + check (mempcpy (two, one + i, 9) == two + 9, + 11 + (i * 6)); /* Unaligned source. */ + equal (two, "hi there", 12 + (i * 6)); + } +} + +static void +test_memmove (void) +{ + it = "memmove"; + check(memmove(one, "abc", 4) == one, 1); /* Returned value. */ + equal(one, "abc", 2); /* Did the copy go right? */ + + (void) strcpy(one, "abcdefgh"); + (void) memmove(one+1, "xyz", 2); + equal(one, "axydefgh", 3); /* Basic test. */ + + (void) strcpy(one, "abc"); + (void) memmove(one, "xyz", 0); + equal(one, "abc", 4); /* Zero-length copy. */ + + (void) strcpy(one, "hi there"); + (void) strcpy(two, "foo"); + (void) memmove(two, one, 9); + equal(two, "hi there", 5); /* Just paranoia. */ + equal(one, "hi there", 6); /* Stomped on source? */ + + (void) strcpy(one, "abcdefgh"); + (void) memmove(one+1, one, 9); + equal(one, "aabcdefgh", 7); /* Overlap, right-to-left. */ + + (void) strcpy(one, "abcdefgh"); + (void) memmove(one+1, one+2, 7); + equal(one, "acdefgh", 8); /* Overlap, left-to-right. */ + + (void) strcpy(one, "abcdefgh"); + (void) memmove(one, one, 9); + equal(one, "abcdefgh", 9); /* 100% overlap. */ +} + +static void +test_memccpy (void) +{ + /* First test like memcpy, then the search part The SVID, the only + place where memccpy is mentioned, says overlap might fail, so we + don't try it. Besides, it's hard to see the rationale for a + non-left-to-right memccpy. */ + it = "memccpy"; + check(memccpy(one, "abc", 'q', 4) == NULL, 1); /* Returned value. */ + equal(one, "abc", 2); /* Did the copy go right? */ + + (void) strcpy(one, "abcdefgh"); + (void) memccpy(one+1, "xyz", 'q', 2); + equal(one, "axydefgh", 3); /* Basic test. */ + + (void) strcpy(one, "abc"); + (void) memccpy(one, "xyz", 'q', 0); + equal(one, "abc", 4); /* Zero-length copy. */ + + (void) strcpy(one, "hi there"); + (void) strcpy(two, "foo"); + (void) memccpy(two, one, 'q', 9); + equal(two, "hi there", 5); /* Just paranoia. */ + equal(one, "hi there", 6); /* Stomped on source? */ + + (void) strcpy(one, "abcdefgh"); + (void) strcpy(two, "horsefeathers"); + check(memccpy(two, one, 'f', 9) == two+6, 7); /* Returned value. */ + equal(one, "abcdefgh", 8); /* Source intact? */ + equal(two, "abcdefeathers", 9); /* Copy correct? */ + + (void) strcpy(one, "abcd"); + (void) strcpy(two, "bumblebee"); + check(memccpy(two, one, 'a', 4) == two+1, 10); /* First char. */ + equal(two, "aumblebee", 11); + check(memccpy(two, one, 'd', 4) == two+4, 12); /* Last char. */ + equal(two, "abcdlebee", 13); + (void) strcpy(one, "xyz"); + check(memccpy(two, one, 'x', 1) == two+1, 14); /* Singleton. */ + equal(two, "xbcdlebee", 15); +} + +static void +test_memset (void) +{ + int i; + + it = "memset"; + (void) strcpy(one, "abcdefgh"); + check(memset(one+1, 'x', 3) == one+1, 1); /* Return value. */ + equal(one, "axxxefgh", 2); /* Basic test. */ + + DIAG_PUSH_NEEDS_COMMENT; +#if __GNUC_PREREQ (5, 0) + /* GCC 5.0 warns about a zero-length memset because the arguments to memset + may be in the wrong order. But we really want to test this. */ + DIAG_IGNORE_NEEDS_COMMENT (5.0, "-Wmemset-transposed-args") +#endif + (void) memset(one+2, 'y', 0); + equal(one, "axxxefgh", 3); /* Zero-length set. */ + DIAG_POP_NEEDS_COMMENT; + + (void) memset(one+5, 0, 1); + equal(one, "axxxe", 4); /* Zero fill. */ + equal(one+6, "gh", 5); /* And the leftover. */ + + (void) memset(one+2, 010045, 1); + equal(one, "ax\045xe", 6); /* Unsigned char convert. */ + + /* Non-8bit fill character. */ + memset (one, 0x101, sizeof (one)); + for (i = 0; i < (int) sizeof (one); ++i) + check (one[i] == '\01', 7); + + /* Test for more complex versions of memset, for all alignments and + lengths up to 256. This test takes a little while, perhaps it should + be made weaker? */ + { + char data[512]; + int j; + int k; + int c; + + for (i = 0; i < 512; i++) + data[i] = 'x'; + for (c = 0; c <= 'y'; c += 'y') /* check for memset(,0,) and + memset(,'y',) */ + for (j = 0; j < 256; j++) + for (i = 0; i < 256; i++) + { + memset (data + i, c, j); + for (k = 0; k < i; k++) + if (data[k] != 'x') + goto fail; + for (k = i; k < i+j; k++) + { + if (data[k] != c) + goto fail; + data[k] = 'x'; + } + for (k = i+j; k < 512; k++) + if (data[k] != 'x') + goto fail; + continue; + + fail: + check (0, 8 + i + j * 256 + (c != 0) * 256 * 256); + } + } +} + +static void +test_bcopy (void) +{ + /* Much like memcpy. Berklix manual is silent about overlap, so + don't test it. */ + it = "bcopy"; + (void) bcopy("abc", one, 4); + equal(one, "abc", 1); /* Simple copy. */ + + (void) strcpy(one, "abcdefgh"); + (void) bcopy("xyz", one+1, 2); + equal(one, "axydefgh", 2); /* Basic test. */ + + (void) strcpy(one, "abc"); + (void) bcopy("xyz", one, 0); + equal(one, "abc", 3); /* Zero-length copy. */ + + (void) strcpy(one, "hi there"); + (void) strcpy(two, "foo"); + (void) bcopy(one, two, 9); + equal(two, "hi there", 4); /* Just paranoia. */ + equal(one, "hi there", 5); /* Stomped on source? */ +} + +static void +test_bzero (void) +{ + it = "bzero"; + (void) strcpy(one, "abcdef"); + bzero(one+2, 2); + equal(one, "ab", 1); /* Basic test. */ + equal(one+3, "", 2); + equal(one+4, "ef", 3); + + (void) strcpy(one, "abcdef"); + bzero(one+2, 0); + equal(one, "abcdef", 4); /* Zero-length copy. */ +} + +static void +test_strndup (void) +{ + char *p, *q; + it = "strndup"; + p = strndup("abcdef", 12); + check(p != NULL, 1); + if (p != NULL) + { + equal(p, "abcdef", 2); + q = strndup(p + 1, 2); + check(q != NULL, 3); + if (q != NULL) + equal(q, "bc", 4); + free (q); + } + free (p); + p = strndup("abc def", 3); + check(p != NULL, 5); + if (p != NULL) + equal(p, "abc", 6); + free (p); +} + +static void +test_bcmp (void) +{ + it = "bcmp"; + check(bcmp("a", "a", 1) == 0, 1); /* Identity. */ + check(bcmp("abc", "abc", 3) == 0, 2); /* Multicharacter. */ + check(bcmp("abcd", "abce", 4) != 0, 3); /* Honestly unequal. */ + check(bcmp("abce", "abcd", 4) != 0, 4); + check(bcmp("alph", "beta", 4) != 0, 5); + check(bcmp("abce", "abcd", 3) == 0, 6); /* Count limited. */ + check(bcmp("abc", "def", 0) == 0, 8); /* Zero count. */ +} + +static void +test_strerror (void) +{ + it = "strerror"; + check(strerror(EDOM) != 0, 1); + check(strerror(ERANGE) != 0, 2); + check(strerror(ENOENT) != 0, 3); +} + +static void +test_strcasecmp (void) +{ + it = "strcasecmp"; + /* Note that the locale is "C". */ + check(strcasecmp("a", "a") == 0, 1); + check(strcasecmp("a", "A") == 0, 2); + check(strcasecmp("A", "a") == 0, 3); + check(strcasecmp("a", "b") < 0, 4); + check(strcasecmp("c", "b") > 0, 5); + check(strcasecmp("abc", "AbC") == 0, 6); + check(strcasecmp("0123456789", "0123456789") == 0, 7); + check(strcasecmp("", "0123456789") < 0, 8); + check(strcasecmp("AbC", "") > 0, 9); + check(strcasecmp("AbC", "A") > 0, 10); + check(strcasecmp("AbC", "Ab") > 0, 11); + check(strcasecmp("AbC", "ab") > 0, 12); +} + +static void +test_strncasecmp (void) +{ + it = "strncasecmp"; + /* Note that the locale is "C". */ + check(strncasecmp("a", "a", 5) == 0, 1); + check(strncasecmp("a", "A", 5) == 0, 2); + check(strncasecmp("A", "a", 5) == 0, 3); + check(strncasecmp("a", "b", 5) < 0, 4); + check(strncasecmp("c", "b", 5) > 0, 5); + check(strncasecmp("abc", "AbC", 5) == 0, 6); + check(strncasecmp("0123456789", "0123456789", 10) == 0, 7); + check(strncasecmp("", "0123456789", 10) < 0, 8); + check(strncasecmp("AbC", "", 5) > 0, 9); + check(strncasecmp("AbC", "A", 5) > 0, 10); + check(strncasecmp("AbC", "Ab", 5) > 0, 11); + check(strncasecmp("AbC", "ab", 5) > 0, 12); + check(strncasecmp("0123456789", "AbC", 0) == 0, 13); + check(strncasecmp("AbC", "abc", 1) == 0, 14); + check(strncasecmp("AbC", "abc", 2) == 0, 15); + check(strncasecmp("AbC", "abc", 3) == 0, 16); + check(strncasecmp("AbC", "abcd", 3) == 0, 17); + check(strncasecmp("AbC", "abcd", 4) < 0, 18); + check(strncasecmp("ADC", "abcd", 1) == 0, 19); + check(strncasecmp("ADC", "abcd", 2) > 0, 20); +} + +int +main (void) +{ + int status; + + /* Test strcmp first because we use it to test other things. */ + test_strcmp (); + + /* Test strcpy next because we need it to set up other tests. */ + test_strcpy (); + + /* A closely related function is stpcpy. */ + test_stpcpy (); + + /* stpncpy. */ + test_stpncpy (); + + /* strcat. */ + test_strcat (); + + /* strncat. */ + test_strncat (); + + /* strncmp. */ + test_strncmp (); + + /* strncpy. */ + test_strncpy (); + + /* strlen. */ + test_strlen (); + + /* strnlen. */ + test_strnlen (); + + /* strchr. */ + test_strchr (); + + /* strchrnul. */ + test_strchrnul (); + + /* rawmemchr. */ + test_rawmemchr (); + + /* index - just like strchr. */ + test_index (); + + /* strrchr. */ + test_strrchr (); + + /* memrchr. */ + test_memrchr (); + + /* rindex - just like strrchr. */ + test_rindex (); + + /* strpbrk - somewhat like strchr. */ + test_strpbrk (); + + /* strstr - somewhat like strchr. */ + test_strstr (); + + /* strspn. */ + test_strspn (); + + /* strcspn. */ + test_strcspn (); + + /* strtok - the hard one. */ + test_strtok (); + + /* strtok_r. */ + test_strtok_r (); + + /* strsep. */ + test_strsep (); + + /* memcmp. */ + test_memcmp (); + + /* memchr. */ + test_memchr (); + + /* memcpy - need not work for overlap. */ + test_memcpy (); + + /* memmove - must work on overlap. */ + test_memmove (); + + /* mempcpy */ + test_mempcpy (); + + /* memccpy. */ + test_memccpy (); + + /* memset. */ + test_memset (); + + /* bcopy. */ + test_bcopy (); + + /* bzero. */ + test_bzero (); + + /* bcmp - somewhat like memcmp. */ + test_bcmp (); + + /* strndup. */ + test_strndup (); + + /* strerror - VERY system-dependent. */ + test_strerror (); + + /* strcasecmp. Without locale dependencies. */ + test_strcasecmp (); + + /* strncasecmp. Without locale dependencies. */ + test_strncasecmp (); + + if (errors == 0) + { + status = EXIT_SUCCESS; + puts("No errors."); + } + else + { + status = EXIT_FAILURE; + printf("%Zd errors.\n", errors); + } + + return status; +} |