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slang
git-6dd5ade9a97b52ace4ac033779a6d3c1c51db4d1.patch
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File git-6dd5ade9a97b52ace4ac033779a6d3c1c51db4d1.patch of Package slang
From 6dd5ade9a97b52ace4ac033779a6d3c1c51db4d1 Mon Sep 17 00:00:00 2001 From: "John E. Davis" <jed@jedsoft.org> Date: Tue, 30 Jan 2018 04:04:17 -0500 Subject: [PATCH] pre2.3.2-19: Added support for the new ncurses 32-bit terminfo database entries. --- src/sltermin.c | 76 +++++++++++++++++++++++++++++++++++++++++++-------------- src/untic.c | 5 ++- 2 files changed, 61 insertions(+), 20 deletions(-) --- src/sltermin.c +++ src/sltermin.c 2018-02-09 08:45:27.600773794 +0000 @@ -36,6 +36,11 @@ USA. * term(4) man page on an SGI. */ +/* The ncurses terminfo binary files come in two flavors: A legacy + * format that uses 16 bit integers in the number-section, and a new + * 32 bit format (nurses 6, from 2018). + */ + /* Short integers are stored in two 8-bit bytes. The first byte contains * the least significant 8 bits of the value, and the second byte contains * the most significant 8 bits. (Thus, the value represented is @@ -46,7 +51,7 @@ USA. * source and also is to be considered missing. */ -static int make_integer (unsigned char *buf) +static int make_integer16 (unsigned char *buf) { register int lo, hi; lo = (int) *buf++; hi = (int) *buf; @@ -58,6 +63,20 @@ static int make_integer (unsigned char * return lo + 256 * hi; } +static int make_integer32 (unsigned char *buf) +{ + unsigned int u; + int i; + + u = (unsigned int)buf[0]; + u |= ((unsigned int)buf[1])<<8; + u |= ((unsigned int)buf[2])<<16; + u |= ((unsigned int)buf[3])<<24; + + i = (int)u; + return i; +} + /* * The compiled file is created from the source file descriptions of the * terminals (see the -I option of infocmp) by using the terminfo compiler, @@ -67,14 +86,15 @@ static int make_integer (unsigned char * * * The header section begins the file. This section contains six short * integers in the format described below. These integers are (1) the magic - * number (octal 0432); (2) the size, in bytes, of the names section; (3) - * the number of bytes in the boolean section; (4) the number of short - * integers in the numbers section; (5) the number of offsets (short + * number (legacy:0432, 01036:32 but); (2) the size, in bytes, of the names section; (3) + * the number of bytes in the boolean section; (4) the number of integers + * in the numbers section; (5) the number of offsets (short * integers) in the strings section; (6) the size, in bytes, of the string * table. */ -#define MAGIC 0432 +#define MAGIC_LEGACY 0432 +#define MAGIC_32BIT 01036 /* In this structure, all char * fields are malloced EXCEPT if the * structure is SLTERMCAP. In that case, only terminal_names is malloced @@ -94,6 +114,8 @@ struct _pSLterminfo_Type unsigned int num_numbers; unsigned char *numbers; + unsigned int sizeof_number; + int (*make_integer)(unsigned char *); unsigned int num_string_offsets; unsigned char *string_offsets; @@ -112,6 +134,7 @@ static FILE *open_terminfo (char *file, { FILE *fp; unsigned char buf[12]; + int magic; /* Alan Cox reported a security problem here if the application using the * library is setuid. So, I need to make sure open the file as a normal @@ -150,19 +173,34 @@ static FILE *open_terminfo (char *file, if (fp == NULL) return NULL; - if ((12 == fread ((char *) buf, 1, 12, fp) && (MAGIC == make_integer (buf)))) + if (12 != fread ((char *)buf, 1, 12, fp)) + { + (void) fclose(fp); + return NULL; + } + magic = make_integer16(buf); + if (magic == MAGIC_LEGACY) + { + h->make_integer = make_integer16; + h->sizeof_number = 2; + } + else if (magic == MAGIC_32BIT) { - h->name_section_size = make_integer (buf + 2); - h->boolean_section_size = make_integer (buf + 4); - h->num_numbers = make_integer (buf + 6); - h->num_string_offsets = make_integer (buf + 8); - h->string_table_size = make_integer (buf + 10); + h->make_integer = make_integer32; + h->sizeof_number = 4; } else { - fclose (fp); - fp = NULL; + (void) fclose (fp); + return NULL; } + + h->name_section_size = make_integer16 (buf + 2); + h->boolean_section_size = make_integer16 (buf + 4); + h->num_numbers = make_integer16 (buf + 6); + h->num_string_offsets = make_integer16 (buf + 8); + h->string_table_size = make_integer16 (buf + 10); + return fp; } @@ -215,13 +253,14 @@ static unsigned char *read_boolean_flags /* * The numbers section is similar to the boolean flags section. Each - * capability takes up two bytes, and is stored as a short integer. If the - * value represented is -1 or -2, the capability is taken to be missing. + * capability takes up 2(4) bytes for the legacy(32 bit) format and + * is stored as a integer. If the value represented is -1 or -2, the + * capability is taken to be missing. */ static unsigned char *read_numbers (FILE *fp, SLterminfo_Type *t) { - return t->numbers = read_terminfo_section (fp, 2 * t->num_numbers); + return t->numbers = read_terminfo_section (fp, t->sizeof_number * t->num_numbers); } /* The strings section is also similar. Each capability is stored as a @@ -430,7 +469,7 @@ char *_pSLtt_tigetstr (SLterminfo_Type * offset = compute_cap_offset (cap, t, Tgetstr_Map, t->num_string_offsets); if (offset < 0) return NULL; - offset = make_integer (t->string_offsets + 2 * offset); + offset = make_integer16 (t->string_offsets + 2 * offset); if (offset < 0) return NULL; return t->string_table + offset; } @@ -446,7 +485,8 @@ int _pSLtt_tigetnum (SLterminfo_Type *t, offset = compute_cap_offset (cap, t, Tgetnum_Map, t->num_numbers); if (offset < 0) return -1; - return make_integer (t->numbers + 2 * offset); + + return (*t->make_integer)(t->numbers + t->sizeof_number * offset); } int _pSLtt_tigetflag (SLterminfo_Type *t, SLCONST char *cap) --- src/untic.c +++ src/untic.c 2018-02-09 08:45:27.656772726 +0000 @@ -36,7 +36,7 @@ int main (int argc, char **argv) puts (t->terminal_names); while (*map->name != 0) { - str = (unsigned char *) SLtt_tigetstr (map->name, (char **) &t); + str = (unsigned char *) SLtt_tigetstr ((SLFUTURE_CONST char *)map->name, (char **) &t); if (str == NULL) { map++; @@ -76,7 +76,7 @@ int main (int argc, char **argv) while (*map->name != 0) { int val; - if ((val = SLtt_tigetnum (map->name, (char **) &t)) >= 0) + if ((val = SLtt_tigetnum ((SLFUTURE_CONST char *)map->name, (char **) &t)) >= 0) { fprintf (stdout, "\t%s#%d\t\t%s\n", map->name, val, @@ -85,6 +85,7 @@ int main (int argc, char **argv) map++; } + _pSLtt_tifreeent (t); return 0; }
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