X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Ftinfo%2Fcaptoinfo.c;h=dd02d902dc5261a67c4849508d8c15c07ec22b68;hp=e1b50b7b4f2e621b72aa32cacd7cd4cfdbcf8e3b;hb=7af63696972b12659832a1c3413d9ace9641c8f6;hpb=46722468f47c2b77b3987729b4bcf2321cccfd01;ds=sidebyside diff --git a/ncurses/tinfo/captoinfo.c b/ncurses/tinfo/captoinfo.c index e1b50b7b..dd02d902 100644 --- a/ncurses/tinfo/captoinfo.c +++ b/ncurses/tinfo/captoinfo.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. * + * Copyright (c) 1998-2012,2016 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * @@ -29,6 +29,7 @@ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * + * and: Thomas E. Dickey 1996-on * ****************************************************************************/ /* @@ -39,7 +40,7 @@ * * There is just one entry point: * - * char *_nc_captoinfo(n, s, parametrized) + * char *_nc_captoinfo(n, s, parameterized) * * Convert value s for termcap string capability named n into terminfo * format. @@ -92,7 +93,7 @@ #include #include -MODULE_ID("$Id: captoinfo.c,v 1.43 2002/09/28 16:38:59 tom Exp $") +MODULE_ID("$Id: captoinfo.c,v 1.78 2016/05/28 23:22:52 tom Exp $") #define MAX_PUSHED 16 /* max # args we can push onto the stack */ @@ -113,9 +114,7 @@ init_string(void) /* initialize 'my_string', 'my_length' */ { if (my_string == 0) - my_string = typeMalloc(char, my_length = 256); - if (my_string == 0) - _nc_err_abort(MSG_NO_MEMORY); + TYPE_MALLOC(char, my_length = 256, my_string); *my_string = '\0'; return my_string; @@ -124,19 +123,19 @@ init_string(void) static char * save_string(char *d, const char *const s) { - size_t have = (d - my_string); + size_t have = (size_t) (d - my_string); size_t need = have + strlen(s) + 2; if (need > my_length) { - my_string = (char *) realloc(my_string, my_length = (need + need)); + my_string = (char *) _nc_doalloc(my_string, my_length = (need + need)); if (my_string == 0) _nc_err_abort(MSG_NO_MEMORY); d = my_string + have; } - (void) strcpy(d, s); + _nc_STRCPY(d, s, my_length - have); return d + strlen(d); } -static inline char * +static NCURSES_INLINE char * save_char(char *s, int c) { static char temp[2]; @@ -148,7 +147,7 @@ static void push(void) /* push onstack on to the stack */ { - if (stackptr > MAX_PUSHED) + if (stackptr >= MAX_PUSHED) _nc_warning("string too complex to convert"); else stack[stackptr++] = onstack; @@ -182,7 +181,7 @@ cvtchar(register const char *sp) case '$': case '\\': case '%': - c = *sp; + c = (unsigned char) (*sp); len = 2; break; case '\0': @@ -195,22 +194,22 @@ cvtchar(register const char *sp) case '3': len = 1; while (isdigit(UChar(*sp))) { - c = 8 * c + (*sp++ - '0'); + c = (unsigned char) (8 * c + (*sp++ - '0')); len++; } break; default: - c = *sp; + c = (unsigned char) (*sp); len = 2; break; } break; case '^': - c = (*++sp & 0x1f); + c = (unsigned char) (*++sp & 0x1f); len = 2; break; default: - c = *sp; + c = (unsigned char) (*sp); len = 1; } if (isgraph(c) && c != ',' && c != '\'' && c != '\\' && c != ':') { @@ -239,6 +238,12 @@ getparm(int parm, int n) else if (parm == 2) parm = 1; } + + while (n--) { + dp = save_string(dp, "%p"); + dp = save_char(dp, '0' + parm); + } + if (onstack == parm) { if (n > 1) { _nc_warning("string may not be optimal"); @@ -254,11 +259,6 @@ getparm(int parm, int n) onstack = parm; - while (n--) { - dp = save_string(dp, "%p"); - dp = save_char(dp, '0' + parm); - } - if (seenn && parm < 3) { dp = save_string(dp, "%{96}%^"); } @@ -272,12 +272,12 @@ getparm(int parm, int n) * Convert a termcap string to terminfo format. * 'cap' is the relevant terminfo capability index. * 's' is the string value of the capability. - * 'parametrized' tells what type of translations to do: + * 'parameterized' tells what type of translations to do: * % translations if 1 * pad translations if >=0 */ -char * -_nc_captoinfo(const char *cap, const char *s, int const parametrized) +NCURSES_EXPORT(char *) +_nc_captoinfo(const char *cap, const char *s, int const parameterized) { const char *capstart; @@ -294,7 +294,7 @@ _nc_captoinfo(const char *cap, const char *s, int const parametrized) capstart = 0; if (s == 0) s = ""; - if (parametrized >= 0 && isdigit(UChar(*s))) + if (parameterized >= 0 && isdigit(UChar(*s))) for (capstart = s;; s++) if (!(isdigit(UChar(*s)) || *s == '*' || *s == '.')) break; @@ -303,7 +303,7 @@ _nc_captoinfo(const char *cap, const char *s, int const parametrized) switch (*s) { case '%': s++; - if (parametrized < 1) { + if (parameterized < 1) { dp = save_char(dp, '%'); break; } @@ -468,73 +468,9 @@ _nc_captoinfo(const char *cap, const char *s, int const parametrized) break; } break; -#ifdef REVISIBILIZE - case '\\': - dp = save_char(dp, *s++); - dp = save_char(dp, *s++); - break; - case '\n': - dp = save_string(dp, "\\n"); - s++; - break; - case '\t': - dp = save_string(dp, "\\t"); - s++; - break; - case '\r': - dp = save_string(dp, "\\r"); - s++; - break; - case '\200': - dp = save_string(dp, "\\0"); - s++; - break; - case '\f': - dp = save_string(dp, "\\f"); - s++; - break; - case '\b': - dp = save_string(dp, "\\b"); - s++; - break; - case ' ': - dp = save_string(dp, "\\s"); - s++; - break; - case '^': - dp = save_string(dp, "\\^"); - s++; - break; - case ':': - dp = save_string(dp, "\\:"); - s++; - break; - case ',': - dp = save_string(dp, "\\,"); - s++; - break; - default: - if (*s == '\033') { - dp = save_string(dp, "\\E"); - s++; - } else if (*s > 0 && *s < 32) { - dp = save_char(dp, '^'); - dp = save_char(dp, *s + '@'); - s++; - } else if (*s <= 0 || *s >= 127) { - dp = save_char(dp, '\\'); - dp = save_char(dp, ((*s & 0300) >> 6) + '0'); - dp = save_char(dp, ((*s & 0070) >> 3) + '0'); - dp = save_char(dp, (*s & 0007) + '0'); - s++; - } else - dp = save_char(dp, *s++); - break; -#else default: dp = save_char(dp, *s++); break; -#endif } } @@ -577,7 +513,7 @@ bcd_expression(const char *str) { char buffer[80]; int tst; - sprintf(buffer, fmt, ch1, ch2); + _nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer)) fmt, ch1, ch2); tst = strlen(buffer) - 1; assert(len == tst); } @@ -589,17 +525,20 @@ bcd_expression(const char *str) static char * save_tc_char(char *bufptr, int c1) { - char temp[80]; - if (is7bits(c1) && isprint(c1)) { if (c1 == ':' || c1 == '\\') bufptr = save_char(bufptr, '\\'); bufptr = save_char(bufptr, c1); } else { - if (c1 == (c1 & 0x1f)) /* iscntrl() returns T on 255 */ - (void) strcpy(temp, unctrl((chtype) c1)); - else - (void) sprintf(temp, "\\%03o", c1); + char temp[80]; + + if (c1 == (c1 & 0x1f)) { /* iscntrl() returns T on 255 */ + _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp)) + "%.20s", unctrl((chtype) c1)); + } else { + _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp)) + "\\%03o", c1); + } bufptr = save_string(bufptr, temp); } return bufptr; @@ -636,24 +575,27 @@ save_tc_inequality(char *bufptr, int c1, int c2) * Convert a terminfo string to termcap format. Parameters are as in * _nc_captoinfo(). */ -char * -_nc_infotocap(const char *cap GCC_UNUSED, const char *str, int const parametrized) +NCURSES_EXPORT(char *) +_nc_infotocap(const char *cap GCC_UNUSED, const char *str, int const parameterized) { int seenone = 0, seentwo = 0, saw_m = 0, saw_n = 0; const char *padding; const char *trimmed = 0; + int in0, in1, in2; char ch1 = 0, ch2 = 0; char *bufptr = init_string(); + char octal[4]; int len; bool syntax_error = FALSE; /* we may have to move some trailing mandatory padding up front */ padding = str + strlen(str) - 1; - if (*padding == '>' && *--padding == '/') { - --padding; + if (padding > str && *padding == '>') { + if (*--padding == '/') + --padding; while (isdigit(UChar(*padding)) || *padding == '.' || *padding == '*') padding--; - if (*padding == '<' && *--padding == '$') + if (padding > str && *padding == '<' && *--padding == '$') trimmed = padding; padding += 2; @@ -661,12 +603,97 @@ _nc_infotocap(const char *cap GCC_UNUSED, const char *str, int const parametrize bufptr = save_char(bufptr, *padding++); } - for (; *str && str != trimmed; str++) { + for (; *str && ((trimmed == 0) || (str < trimmed)); str++) { int c1, c2; char *cp = 0; - if (str[0] == '\\' && (str[1] == '^' || str[1] == ',')) { - bufptr = save_char(bufptr, *++str); + if (str[0] == '^') { + if (str[1] == '\0' || (str + 1) == trimmed) { + bufptr = save_string(bufptr, "\\136"); + ++str; + } else { + bufptr = save_char(bufptr, *str++); + bufptr = save_char(bufptr, *str); + } + } else if (str[0] == '\\') { + if (str[1] == '\0' || (str + 1) == trimmed) { + bufptr = save_string(bufptr, "\\134"); + ++str; + } else if (str[1] == '^') { + bufptr = save_string(bufptr, "\\136"); + ++str; + } else if (str[1] == ',') { + bufptr = save_char(bufptr, *++str); + } else { + int xx1; + + bufptr = save_char(bufptr, *str++); + xx1 = *str; + if (_nc_strict_bsd) { + + if (isdigit(UChar(xx1))) { + int pad = 0; + int xx2; + + if (!isdigit(UChar(str[1]))) + pad = 2; + else if (str[1] && !isdigit(UChar(str[2]))) + pad = 1; + + /* + * Test for "\0", "\00" or "\000" and transform those + * into "\200". + */ + if (xx1 == '0' + && ((pad == 2) || (str[1] == '0')) + && ((pad >= 1) || (str[2] == '0'))) { + xx2 = '2'; + } else { + xx2 = '0'; + pad = 0; /* FIXME - optionally pad to 3 digits */ + } + while (pad-- > 0) { + bufptr = save_char(bufptr, xx2); + xx2 = '0'; + } + } else if (strchr("E\\nrtbf", xx1) == 0) { + switch (xx1) { + case 'e': + xx1 = 'E'; + break; + case 'l': + xx1 = 'n'; + break; + case 's': + bufptr = save_char(bufptr, '0'); + bufptr = save_char(bufptr, '4'); + xx1 = '0'; + break; + case ':': + /* + * Note: termcap documentation claims that ":" + * must be escaped as "\072", however the + * documentation is incorrect - read the code. + * The replacement does not work reliably, + * so the advice is not helpful. + */ + bufptr = save_char(bufptr, '0'); + bufptr = save_char(bufptr, '7'); + xx1 = '2'; + break; + default: + /* should not happen, but handle this anyway */ + _nc_SPRINTF(octal, _nc_SLIMIT(sizeof(octal)) + "%03o", UChar(xx1)); + bufptr = save_char(bufptr, octal[0]); + bufptr = save_char(bufptr, octal[1]); + xx1 = octal[2]; + break; + } + } + } + bufptr = save_char(bufptr, xx1); + } } else if (str[0] == '$' && str[1] == '<') { /* discard padding */ str += 2; while (isdigit(UChar(*str)) @@ -676,22 +703,37 @@ _nc_infotocap(const char *cap GCC_UNUSED, const char *str, int const parametrize || *str == '>') str++; --str; + } else if (sscanf(str, + "[%%?%%p1%%{8}%%<%%t%d%%p1%%d%%e%%p1%%{16}%%<%%t%d%%p1%%{8}%%-%%d%%e%d;5;%%p1%%d%%;m", + &in0, &in1, &in2) == 3 + && ((in0 == 4 && in1 == 10 && in2 == 48) + || (in0 == 3 && in1 == 9 && in2 == 38))) { + /* dumb-down an optimized case from xterm-256color for termcap */ + if ((str = strstr(str, ";m")) == 0) + break; /* cannot happen */ + ++str; + if (in2 == 48) { + bufptr = save_string(bufptr, "[48;5;%dm"); + } else { + bufptr = save_string(bufptr, "[38;5;%dm"); + } } else if (str[0] == '%' && str[1] == '%') { /* escaped '%' */ bufptr = save_string(bufptr, "%%"); - } else if (*str != '%' || (parametrized < 1)) { + ++str; + } else if (*str != '%' || (parameterized < 1)) { bufptr = save_char(bufptr, *str); } else if (sscanf(str, "%%?%%{%d}%%>%%t%%{%d}%%+%%;", &c1, &c2) == 2) { str = strchr(str, ';'); bufptr = save_tc_inequality(bufptr, c1, c2); } else if (sscanf(str, "%%?%%{%d}%%>%%t%%'%c'%%+%%;", &c1, &ch2) == 2) { str = strchr(str, ';'); - bufptr = save_tc_inequality(bufptr, c1, c2); + bufptr = save_tc_inequality(bufptr, c1, ch2); } else if (sscanf(str, "%%?%%'%c'%%>%%t%%{%d}%%+%%;", &ch1, &c2) == 2) { str = strchr(str, ';'); - bufptr = save_tc_inequality(bufptr, c1, c2); + bufptr = save_tc_inequality(bufptr, ch1, c2); } else if (sscanf(str, "%%?%%'%c'%%>%%t%%'%c'%%+%%;", &ch1, &ch2) == 2) { str = strchr(str, ';'); - bufptr = save_tc_inequality(bufptr, c1, c2); + bufptr = save_tc_inequality(bufptr, ch1, ch2); } else if ((len = bcd_expression(str)) != 0) { str += len; bufptr = save_string(bufptr, "%B"); @@ -706,15 +748,15 @@ _nc_infotocap(const char *cap GCC_UNUSED, const char *str, int const parametrize bufptr = save_tc_char(bufptr, c1); } /* FIXME: this "works" for 'delta' */ - else if (strncmp(str, "%{2}%*%-", 8) == 0) { + else if (strncmp(str, "%{2}%*%-", (size_t) 8) == 0) { str += 7; bufptr = save_string(bufptr, "%D"); - } else if (strncmp(str, "%{96}%^", 7) == 0) { + } else if (strncmp(str, "%{96}%^", (size_t) 7) == 0) { str += 6; if (saw_m++ == 0) { bufptr = save_string(bufptr, "%n"); } - } else if (strncmp(str, "%{127}%^", 8) == 0) { + } else if (strncmp(str, "%{127}%^", (size_t) 8) == 0) { str += 7; if (saw_n++ == 0) { bufptr = save_string(bufptr, "%m"); @@ -737,8 +779,25 @@ _nc_infotocap(const char *cap GCC_UNUSED, const char *str, int const parametrize case '8': case '9': bufptr = save_char(bufptr, '%'); - while (isdigit(UChar(*str))) - bufptr = save_char(bufptr, *str++); + ch1 = 0; + ch2 = 0; + while (isdigit(UChar(*str))) { + ch2 = ch1; + ch1 = *str++; + if (_nc_strict_bsd) { + if (ch1 > '3') + return 0; + } else { + bufptr = save_char(bufptr, ch1); + } + } + if (_nc_strict_bsd) { + if (ch2 != 0 && ch2 != '0') + return 0; + if (ch1 < '2') + ch1 = 'd'; + bufptr = save_char(bufptr, ch1); + } if (strchr("doxX.", *str)) { if (*str != 'd') /* termcap doesn't have octal, hex */ return 0; @@ -759,6 +818,8 @@ _nc_infotocap(const char *cap GCC_UNUSED, const char *str, int const parametrize * termcap notation. */ case 's': + if (_nc_strict_bsd) + return 0; bufptr = save_string(bufptr, "%s"); break; @@ -786,7 +847,12 @@ _nc_infotocap(const char *cap GCC_UNUSED, const char *str, int const parametrize } /* endswitch (*str) */ } /* endelse (*str == '%') */ - if (*str == '\0') + /* + * 'str' always points to the end of what was scanned in this step, + * but that may not be the end of the string. + */ + assert(str != 0); + if (str == 0 || *str == '\0') break; } /* endwhile (*str) */ @@ -833,4 +899,13 @@ main(int argc, char *argv[]) } #endif /* MAIN */ -/* captoinfo.c ends here */ +#if NO_LEAKS +NCURSES_EXPORT(void) +_nc_captoinfo_leaks(void) +{ + if (my_string != 0) { + FreeAndNull(my_string); + } + my_length = 0; +} +#endif