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49 lines
2.5 KiB
49 lines
2.5 KiB
2 months ago
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/*
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* UCW Library -- Strings Allocated on the Stack
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*
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* (c) 2005--2007 Martin Mares <mj@ucw.cz>
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* (c) 2005 Tomas Valla <tom@ucw.cz>
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* (c) 2008 Pavel Charvat <pchar@ucw.cz>
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*
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* This software may be freely distributed and used according to the terms
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* of the GNU Lesser General Public License.
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*/
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#ifndef _UCW_STKSTRING_H
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#define _UCW_STKSTRING_H
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#include <alloca.h>
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#include <string.h>
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#include <stdio.h>
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#include <ucw/string.h>
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#ifdef CONFIG_UCW_CLEAN_ABI
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#define stk_array_join ucw_stk_array_join
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#define stk_array_len ucw_stk_array_len
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#define stk_fsize_internal ucw_stk_fsize_internal
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#define stk_hexdump_internal ucw_stk_hexdump_internal
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#define stk_printf_internal ucw_stk_printf_internal
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#define stk_vprintf_internal ucw_stk_vprintf_internal
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#endif
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#define stk_strdup(s) ({ const char *_s=(s); uint _l=strlen(_s)+1; char *_x=alloca(_l); memcpy(_x, _s, _l); _x; })
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#define stk_strndup(s,n) ({ const char *_s=(s); uint _l=strnlen(_s,(n)); char *_x=alloca(_l+1); memcpy(_x, _s, _l); _x[_l]=0; _x; })
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#define stk_strcat(s1,s2) ({ const char *_s1=(s1); const char *_s2=(s2); uint _l1=strlen(_s1); uint _l2=strlen(_s2); char *_x=alloca(_l1+_l2+1); memcpy(_x,_s1,_l1); memcpy(_x+_l1,_s2,_l2+1); _x; })
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#define stk_strmulticat(s...) ({ char *_s[]={s}; char *_x=alloca(stk_array_len(_s, ARRAY_SIZE(_s)-1)); stk_array_join(_x, _s, ARRAY_SIZE(_s)-1, 0); _x; })
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#define stk_strarraycat(s,n) ({ char **_s=(s); int _n=(n); char *_x=alloca(stk_array_len(_s,_n)); stk_array_join(_x, _s, _n, 0); _x; })
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#define stk_strjoin(s,n,sep) ({ char **_s=(s); int _n=(n); char *_x=alloca(stk_array_len(_s,_n)+_n-1); stk_array_join(_x, _s, _n, (sep)); _x; })
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#define stk_printf(f...) ({ uint _l=stk_printf_internal(f); char *_x=alloca(_l); sprintf(_x, f); _x; })
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#define stk_vprintf(f, args) ({ uint _l=stk_vprintf_internal(f, args); char *_x=alloca(_l); vsprintf(_x, f, args); _x; })
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#define stk_hexdump(s,n) ({ uint _n=(n); char *_x=alloca(3*_n+1); stk_hexdump_internal(_x,(char*)(s),_n); _x; })
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#define stk_str_unesc(s) ({ const char *_s=(s); char *_d=alloca(strlen(_s)+1); str_unesc(_d, _s); _d; })
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#define stk_fsize(n) ({ char *_s=alloca(16); stk_fsize_internal(_s, n); _s; })
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uint stk_array_len(char **s, uint cnt);
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void stk_array_join(char *x, char **s, uint cnt, uint sep);
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uint stk_printf_internal(const char *x, ...) FORMAT_CHECK(printf,1,2);
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uint stk_vprintf_internal(const char *x, va_list args);
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void stk_hexdump_internal(char *dst, const byte *src, uint n);
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void stk_fsize_internal(char *dst, u64 size);
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#endif
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