68 lines
1.3 KiB
C
68 lines
1.3 KiB
C
#ifndef __ZZIP_INTERNAL_STRING_H
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#define __ZZIP_INTERNAL_STRING_H
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#ifdef __linux__
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#define _GNU_SOURCE _glibc_developers_are_idiots_to_call_strndup_gnu_specific_
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#endif
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#include <zzip/conf.h>
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#if defined ZZIP_HAVE_STRING_H
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#include <string.h>
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#elif defined ZZIP_HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#if defined ZZIP_HAVE_STRNDUP || defined strndup
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#define _zzip_strndup strndup
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#else
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/* if your system does not have strndup: */
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zzip__new__ static char *
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_zzip_strndup(char const *p, size_t maxlen)
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{
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if (p == NULL)
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{
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return p;
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} else
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{
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size_t len = strnlen(p, maxlen);
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char* r = malloc(len + 1);
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if (r == NULL)
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return NULL; /* errno = ENOMEM */
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r[len] = '\0';
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return memcpy(r, p, len);
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}
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}
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#endif
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#if defined ZZIP_HAVE_STRCASECMP || defined strcasecmp
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#define _zzip_strcasecmp strcasecmp
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#else
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/* if your system does not have strcasecmp: */
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static int
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_zzip_strcasecmp(char *__zzip_restrict a, char *_zzip_restrict b)
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{
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if (! a)
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return (b) ? 1 : 0;
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if (! b)
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return -1;
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while (1)
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{
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int v = tolower(*a) - tolower(*b);
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if (v)
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return v;
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if (! *a)
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return 1;
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if (! *b)
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return -1;
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a++;
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b++;
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}
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}
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#endif
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#endif
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