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Diffstat (limited to 'Build/source/texk/dvipdfmx/dvipdfmx-20110309/src/dpxfile.c')
| -rw-r--r-- | Build/source/texk/dvipdfmx/dvipdfmx-20110309/src/dpxfile.c | 1049 |
1 files changed, 1049 insertions, 0 deletions
diff --git a/Build/source/texk/dvipdfmx/dvipdfmx-20110309/src/dpxfile.c b/Build/source/texk/dvipdfmx/dvipdfmx-20110309/src/dpxfile.c new file mode 100644 index 00000000000..67155401510 --- /dev/null +++ b/Build/source/texk/dvipdfmx/dvipdfmx-20110309/src/dpxfile.c @@ -0,0 +1,1049 @@ +/* $Header: /home/cvsroot/dvipdfmx/src/dpxfile.c,v 1.28 2011/03/06 03:06:59 chofchof Exp $ + + This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks. + + Copyright (C) 2007 by Jin-Hwan Cho and Shunsaku Hirata, + the dvipdfmx project team <dvipdfmx@project.ktug.or.kr> + + Copyright (C) 1998, 1999 by Mark A. Wicks <mwicks@kettering.edu> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. +*/ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include "system.h" +#include "error.h" +#include "mem.h" + +#include "dpxutil.h" +#include "mfileio.h" + +#include "dpxfile.h" + +#include <kpathsea/lib.h> +#include <string.h> +#ifdef WIN32 +#include <io.h> +#include <process.h> +#else +#if HAVE_SYS_WAIT_H +#include <sys/wait.h> +#endif +#ifndef WEXITSTATUS +#define WEXITSTATUS(val) ((unsigned)(val) >> 8) +#endif +#ifndef WIFEXITED +#define WIFEXITED(val) (((val) & 255) == 0) +#endif +#endif + +static int verbose = 0; + +void +dpx_file_set_verbose (void) +{ + verbose++; +} + + +/* Kpathsea library does not check file type. */ +static int qcheck_filetype (const char *fqpn, int type); + +/* For testing MIKTEX enabled compilation */ +#if defined(TESTCOMPILE) && !defined(MIKTEX) +# define MIKTEX 1 +# define PATH_SEP_CHR '/' +# define _MAX_PATH 256 + +static int +miktex_get_acrobat_font_dir (char *buf) +{ + strcpy(buf, "/usr/share/ghostscript/Resource/Font/"); + return 1; +} + +static int +miktex_find_file (const char *filename, const char *dirlist, char *buf) +{ + int r = 0; + char *fqpn; + + fqpn = kpse_path_search(dirlist, filename, 0); + if (!fqpn) + return 0; + if (strlen(fqpn) > _MAX_PATH) + r = 0; + else { + strcpy(buf, fqpn); + r = 1; + } + RELEASE(fqpn); + + return r; +} + +static int +miktex_find_app_input_file (const char *progname, const char *filename, char *buf) +{ + int r = 0; + char *fqpn; + + kpse_reset_program_name(progname); + fqpn = kpse_find_file (filename, kpse_program_text_format, false); + kpse_reset_program_name(PACKAGE); + + if (!fqpn) + return 0; + if (strlen(fqpn) > _MAX_PATH) + r = 0; + else { + strcpy(buf, fqpn); + r = 1; + } + RELEASE(fqpn); + + return r; +} + +static int +miktex_find_psheader_file (const char *filename, char *buf) +{ + int r; + char *fqpn; + + fqpn = kpse_find_file(filename, kpse_tex_ps_header_format, 0); + + if (!fqpn) + return 0; + if (strlen(fqpn) > _MAX_PATH) + r = 0; + else { + strcpy(buf, fqpn); + r = 1; + } + RELEASE(fqpn); + + return r; +} + +#endif /* TESTCOMPILE */ + +#ifdef MIKTEX +#ifndef PATH_SEP_CHR +# define PATH_SEP_CHR '\\' +#endif +static char _tmpbuf[_MAX_PATH+1]; +#endif /* MIKTEX */ + +static int exec_spawn (char *cmd) +{ + char **cmdv, **qv; + char *p, *pp; + char buf[512]; + int i, ret; + + if (!cmd || !*cmd) + return -1; + i = 0; + p = cmd; + while (*p) { + if (*p == ' ' || *p == '\t') + i++; + p++; + } + cmdv = (char **) xmalloc (sizeof (char *) * (i+2)); + p = cmd; + qv = cmdv; + while (*p == ' ' || *p == '\t') + p++; + while (*p) { + pp = buf; + if (*p == '"') { + p++; + while (*p != '"') { + if (*p == '\0') { + free (cmdv); + return -1; + } + *pp++ = *p++; + } + p++; + } else if (*p == '\'') { + p++; + while (*p != '\'') { + if (*p == '\0') { + free (cmdv); + return -1; + } + *pp++ = *p++; + } + p++; + } else { + while (*p != ' ' && *p != '\t' && *p) +#ifdef WIN32 + if (*p == '\'') { + *pp++ = '\"'; + p++; + } else { + *pp++ = *p++; + } +#else + *pp++ = *p++; +#endif + } + *pp = '\0'; + if ((pp = strchr (buf, ' ')) || (pp = strchr (buf, '\t'))) { +#ifdef WIN32 + *qv = concat3 ("\"", buf, "\""); +#else + *qv = concat3 ("'", buf, "'"); +#endif + } else { + *qv = concat (buf, ""); + } + while (*p == ' ' || *p == '\t') + p++; + qv++; + } + *qv = NULL; +#ifdef WIN32 + ret = spawnvp (_P_WAIT, *cmdv, (const char* const*) cmdv); +#else + i = fork (); + if (i < 0) + ret = -1; + else if (i == 0) { + if (execvp (*cmdv, cmdv)) + ret = -1; + } else { + if (wait (&ret) == i) { + ret = (WIFEXITED (ret) ? WEXITSTATUS (ret) : -1); + } else { + ret = -1; + } + } +#endif + qv = cmdv; + if (qv) { + while (*qv) { + free (*qv); + qv++; + } + free (cmdv); + } + return ret; +} + +/* ensuresuffix() returns a copy of basename if sfx is "". */ +static char * +ensuresuffix (const char *basename, const char *sfx) +{ + char *q, *p; + + p = NEW(strlen(basename) + strlen(sfx) + 1, char); + strcpy(p, basename); + q = strrchr(p, '.'); + if (!q && sfx[0]) + strcat(p, sfx); + + return p; +} + +#ifdef MIKTEX +static char * +dpx_find__app__xyz (const char *filename, + const char *suffix, int is_text) +{ + char *fqpn = NULL; + int r; + char *q; + + q = ensuresuffix(filename, suffix); + r = miktex_find_app_input_file(PACKAGE, q, _tmpbuf); + if (!r && strcmp(q, filename)) + r = miktex_find_app_input_file(PACKAGE, filename, _tmpbuf); + if (r) { + fqpn = NEW(strlen(_tmpbuf) + 1, char); + strcpy(fqpn, _tmpbuf); + } + RELEASE(q); + + return fqpn; +} + +static char * +dpx_foolsearch (const char *foolname, + const char *filename, + int is_text) +{ + char *fqpn = NULL; + int r; + + r = miktex_find_app_input_file(foolname, filename, _tmpbuf); + if (r) { + fqpn = NEW(strlen(_tmpbuf) + 1, char); + strcpy(fqpn, _tmpbuf); + } + + return fqpn; +} +#else /* TEXK */ +#if defined(__TDS_VERSION__) && __TDS_VERSION__ >= 0x200406L +# define TDS11DOC "http://www.tug.org/ftp/tex/tds-1.1/tds.html#Fonts" +static void +insistupdate (const char *filename, + const char *fqpn, + const char *foolname, + kpse_file_format_type foolformat, + kpse_file_format_type realformat) +{ + kpse_format_info_type *fif; + kpse_format_info_type *fir; + if (verbose < 1) + return; + fif = &kpse_format_info[foolformat]; + fir = &kpse_format_info[realformat]; + WARN("File name=\"%s\" format=\"%s\" might be found in different location than I expected:", + filename, fir->type); + WARN(">> %s", fqpn); + WARN(">> Please adjust your TEXMF as conformant with:"); + WARN(">> " TDS11DOC); + WARN(">> I searched it with fooling kpathsea as progname=\"%s\" format=\"%s\".", + foolname, fif->type); + WARN(">> Default search path for this format file is:"); + WARN(">> %s", fir->default_path); + WARN(">> Please read \"README\" file."); +} +#endif /* TDS 1.1 */ + +static char * +dpx_find__app__xyz (const char *filename, + const char *suffix, int is_text) +{ + char *fqpn = NULL; + char *q; + + q = ensuresuffix(filename, suffix); + fqpn = kpse_find_file(q, + (is_text ? + kpse_program_text_format : kpse_program_binary_format), 0); + if (!fqpn && strcmp(q, filename)) + fqpn = kpse_find_file(filename, + (is_text ? + kpse_program_text_format : kpse_program_binary_format), 0); + RELEASE(q); + + return fqpn; +} + +static char * +dpx_foolsearch (const char *foolname, + const char *filename, + int is_text) +{ + char *fqpn = NULL; + + kpse_reset_program_name(foolname); + fqpn = kpse_find_file (filename, + (is_text ? + kpse_program_text_format : + kpse_program_binary_format), + false); + kpse_reset_program_name(PACKAGE); + + return fqpn; +} +#endif /* MIKTEX */ + +static char *dpx_find_fontmap_file (const char *filename); +static char *dpx_find_agl_file (const char *filename); +static char *dpx_find_sfd_file (const char *filename); +static char *dpx_find_cmap_file (const char *filename); +static char *dpx_find_enc_file (const char *filename); +static char *dpx_find_opentype_file (const char *filename); +static char *dpx_find_truetype_file (const char *filename); +static char *dpx_find_type1_file (const char *filename); +static char *dpx_find_iccp_file (const char *filename); +static char *dpx_find_dfont_file (const char *filename); + +FILE * +dpx_open_file (const char *filename, int type) +{ + FILE *fp = NULL; + char *fqpn = NULL; + + switch (type) { + case DPX_RES_TYPE_FONTMAP: + fqpn = dpx_find_fontmap_file(filename); + break; + case DPX_RES_TYPE_T1FONT: + fqpn = dpx_find_type1_file(filename); + break; + case DPX_RES_TYPE_TTFONT: + fqpn = dpx_find_truetype_file(filename); + break; + case DPX_RES_TYPE_OTFONT: + fqpn = dpx_find_opentype_file(filename); + break; + case DPX_RES_TYPE_PKFONT: + break; + case DPX_RES_TYPE_CMAP: + fqpn = dpx_find_cmap_file(filename); + break; + case DPX_RES_TYPE_ENC: + fqpn = dpx_find_enc_file(filename); + break; + case DPX_RES_TYPE_SFD: + fqpn = dpx_find_sfd_file(filename); + break; + case DPX_RES_TYPE_AGL: + fqpn = dpx_find_agl_file(filename); + break; + case DPX_RES_TYPE_ICCPROFILE: + fqpn = dpx_find_iccp_file(filename); + break; + case DPX_RES_TYPE_DFONT: + fqpn = dpx_find_dfont_file(filename); + break; + case DPX_RES_TYPE_BINARY: + fqpn = dpx_find__app__xyz(filename, "", 0); + break; + case DPX_RES_TYPE_TEXT: + fqpn = dpx_find__app__xyz(filename, "", 1); + break; + default: + ERROR("Unknown resource type: %d", type); + break; + } + if (fqpn) { + fp = MFOPEN(fqpn, FOPEN_RBIN_MODE); + RELEASE(fqpn); + } + + return fp; +} + + +static char * +dpx_find_iccp_file (const char *filename) +{ + char *fqpn = NULL; + + fqpn = dpx_find__app__xyz(filename, "", 0); + if (fqpn || strrchr(filename, '.')) + return fqpn; + + fqpn = dpx_find__app__xyz(filename, ".icc", 0); + if (fqpn) + return fqpn; + + fqpn = dpx_find__app__xyz(filename, ".icm", 0); + + return fqpn; +} + + +static char * +dpx_find_fontmap_file (const char *filename) +{ + char *fqpn = NULL; + char *q; + + q = ensuresuffix(filename, ".map"); +#ifdef MIKTEX + fqpn = dpx_find__app__xyz(q, ".map", 1); +#else /* !MIKTEX */ + fqpn = kpse_find_file(q, kpse_fontmap_format, 0); + if (!fqpn) { + fqpn = dpx_find__app__xyz(q, ".map", 1); +#if defined(__TDS_VERSION__) && __TDS_VERSION__ >= 0x200406L + if (fqpn) + insistupdate(q, fqpn, PACKAGE, + kpse_program_text_format, kpse_fontmap_format); +#endif + } +#endif /* MIKETEX */ + RELEASE(q); + + return fqpn; +} + + +static char * +dpx_find_agl_file (const char *filename) +{ + char *fqpn = NULL; + char *q; + + q = ensuresuffix(filename, ".txt"); +#ifdef MIKTEX + fqpn = dpx_find__app__xyz(q, ".txt", 1); +#else /* !MIKTEX */ + fqpn = kpse_find_file(q, kpse_fontmap_format, 0); + if (!fqpn) { + fqpn = dpx_find__app__xyz(q, ".txt", 1); +#if defined(__TDS_VERSION__) && __TDS_VERSION__ >= 0x200406L + if (fqpn) + insistupdate(q, fqpn, PACKAGE, + kpse_program_text_format, kpse_fontmap_format); +#endif + } +#endif /* MIKETEX */ + RELEASE(q); + + return fqpn; +} + + +/* cmap.sty put files into tex/latex/cmap */ +static char * +dpx_find_cmap_file (const char *filename) +{ + char *fqpn = NULL; + static const char *fools[] = { + "cmap", "tex", NULL + }; + int i; + +#if defined(MIKTEX) + /* Find in Acrobat's Resource/CMap dir */ + { + char _acrodir[_MAX_PATH+1]; + char *q; + int r; + + memset(_acrodir, 0, _MAX_PATH+1); + r = miktex_get_acrobat_font_dir(_acrodir); + if (r && + strlen(_acrodir) > strlen("Font")) { + /* ....\Font\ */ + q = strrchr(_acrodir, PATH_SEP_CHR); + if (q && q[1] == '\0') + q[0] = '\0'; + q = strrchr(_acrodir, PATH_SEP_CHR); + if (q && !strcmp(q + 1, "Font")) { + sprintf(q, "%cCMap%c", PATH_SEP_CHR, PATH_SEP_CHR); + r = miktex_find_file(filename, _acrodir, _tmpbuf); + if (r) { + fqpn = NEW(strlen(_tmpbuf) + 1, char); + strcpy(fqpn, _tmpbuf); + } + } + } + memset(_tmpbuf, 0, _MAX_PATH+1); + } +#else +#if defined(__TDS_VERSION__) && __TDS_VERSION__ >= 0x200406L + fqpn = kpse_find_file(filename, kpse_cmap_format, 0); +#endif +#endif + + /* Files found above are assumed to be CMap, + * if it's not really CMap it will cause an error. + */ + for (i = 0; !fqpn && fools[i]; i++) { + fqpn = dpx_foolsearch(fools[i], filename, 1); + if (fqpn) { +#ifndef MIKTEX +#if defined(__TDS_VERSION__) && __TDS_VERSION__ >= 0x200406L + insistupdate(filename, fqpn, fools[i], + kpse_program_text_format, kpse_cmap_format); +#endif +#endif + if (!qcheck_filetype(fqpn, DPX_RES_TYPE_CMAP)) { + WARN("Found file \"%s\" for PostScript CMap but it doesn't look like a CMap...", fqpn); + RELEASE(fqpn); + fqpn = NULL; + } + } + } + + return fqpn; +} + + +/* Search order: + * SFDFONTS (TDS 1.1) + * ttf2pk (text file) + * ttf2tfm (text file) + * dvipdfm (text file) + */ +static char * +dpx_find_sfd_file (const char *filename) +{ + char *fqpn = NULL; + char *q; + static const char *fools[] = { + "ttf2pk", "ttf2tfm", NULL + }; + int i; + + q = ensuresuffix(filename, ".sfd"); +#ifndef MIKTEX +#if defined(__TDS_VERSION__) && __TDS_VERSION__ >= 0x200406L + fqpn = kpse_find_file(q, kpse_sfd_format, 0); +#endif +#endif /* !MIKTEX */ + + for (i = 0; !fqpn && fools[i]; i++) { + fqpn = dpx_foolsearch(fools[i], q, 1); +#ifndef MIKTEX +#if defined(__TDS_VERSION__) && __TDS_VERSION__ >= 0x200406L + if (fqpn) + insistupdate(filename, fqpn, fools[i], + kpse_program_text_format, kpse_sfd_format); +#endif +#endif + } + RELEASE(q); + + return fqpn; +} + + +static char * +dpx_find_enc_file (const char *filename) +{ + char *fqpn = NULL; + char *q; + static const char *fools[] = { + "dvips", NULL + }; + int i; + + q = ensuresuffix(filename, ".enc"); +#ifdef MIKTEX + if (miktex_find_psheader_file(q, _tmpbuf)) { + fqpn = NEW(strlen(_tmpbuf) + 1, char); + strcpy(fqpn, _tmpbuf); + } +#else +# if defined(__TDS_VERSION__) && __TDS_VERSION__ >= 0x200406L + fqpn = kpse_find_file(q, kpse_enc_format, 0); +# else + fqpn = kpse_find_file(q, kpse_tex_ps_header_format, 0); +# endif +#endif /* MIKTEX */ + + for (i = 0; !fqpn && fools[i]; i++) { + fqpn = dpx_foolsearch(fools[i], q, 1); +#ifndef MIKTEX +#if defined(__TDS_VERSION__) && __TDS_VERSION__ >= 0x200406L + if (fqpn) + insistupdate(filename, fqpn, fools[i], + kpse_program_text_format, kpse_enc_format); +#endif +#endif + } + RELEASE(q); + + return fqpn; +} + + +static char * +dpx_find_type1_file (const char *filename) +{ + char *fqpn = NULL; + + fqpn = kpse_find_file(filename, kpse_type1_format, 0); + if (fqpn && !qcheck_filetype(fqpn, DPX_RES_TYPE_T1FONT)) { + RELEASE(fqpn); + fqpn = NULL; + } + + return fqpn; +} + + +static char * +dpx_find_truetype_file (const char *filename) +{ + char *fqpn = NULL; + + fqpn = kpse_find_file(filename, kpse_truetype_format, 0); + if (fqpn && !qcheck_filetype(fqpn, DPX_RES_TYPE_TTFONT)) { + RELEASE(fqpn); + fqpn = NULL; + } + + return fqpn; +} + + +static char * +dpx_find_opentype_file (const char *filename) +{ + char *fqpn = NULL; + char *q; + + q = ensuresuffix(filename, ".otf"); +#ifndef MIKTEX +#if defined(__TDS_VERSION__) && __TDS_VERSION__ >= 0x200406L + fqpn = kpse_find_file(q, kpse_opentype_format, 0); + if (!fqpn) { +#endif +#endif + fqpn = dpx_foolsearch(PACKAGE, q, 0); +#ifndef MIKTEX +#if defined(__TDS_VERSION__) && __TDS_VERSION__ >= 0x200406L + if (fqpn) + insistupdate(filename, fqpn, PACKAGE, + kpse_program_binary_format, kpse_opentype_format); + } +#endif +#endif + RELEASE(q); + + /* *We* use "opentype" for ".otf" (CFF). */ + if (fqpn && !qcheck_filetype(fqpn, DPX_RES_TYPE_OTFONT)) { + RELEASE(fqpn); + fqpn = NULL; + } + + return fqpn; +} + + +static char * +dpx_find_dfont_file (const char *filename) +{ + char *fqpn = NULL; + + fqpn = kpse_find_file(filename, kpse_truetype_format, 0); + if (fqpn) { + int len = strlen(fqpn); + if (len > 6 && strncmp(fqpn+len-6, ".dfont", 6)) { + fqpn = RENEW(fqpn, len+6, char); + strcat(fqpn, "/rsrc"); + } + } + if (!qcheck_filetype(fqpn, DPX_RES_TYPE_DFONT)) { + RELEASE(fqpn); + fqpn = NULL; + } + return fqpn; +} + + +#ifdef HAVE_MKSTEMP +# include <stdlib.h> +/* extern int mkstemp(const char *); */ +#endif + +/* Please fix: GCC warning + * warning: implicit declaration of function `mkstemp' + * mkstemp may not be declared in stdlib.h. + */ +char * +dpx_create_temp_file (void) +{ + char *tmp = NULL; + +#if defined(MIKTEX) + { + tmp = NEW(_MAX_PATH + 1, char); + miktex_create_temp_file_name(tmp); /* FIXME_FIXME */ + } +#elif defined(HAVE_MKSTEMP) +# define __TMPDIR "/tmp" +# define TEMPLATE "/dvipdfmx.XXXXXX" + { + const char *_tmpd; + int _fd = -1; +# ifdef HAVE_GETENV + _tmpd = getenv("TMPDIR"); + if (!_tmpd) + _tmpd = __TMPDIR; +# else + _tmpd = __TMPDIR; +# endif /* HAVE_GETENV */ + tmp = NEW(strlen(_tmpd) + strlen(TEMPLATE) + 1, char); + strcpy(tmp, _tmpd); + strcat(tmp, TEMPLATE); + _fd = mkstemp(tmp); + if (_fd != -1) +#ifdef WIN32 + _close(_fd); +#else + close(_fd); +#endif /* WIN32 */ + else { + RELEASE(tmp); + tmp = NULL; + } + } +#else /* use tmpnam */ + { + char *_tmpa = NEW(L_tmpnam + 1, char); + tmp = tmpnam(_tmpa); + if (!tmp) + RELEASE(_tmpa); + } +#endif /* MIKTEX */ + + return tmp; +} + +void +dpx_delete_temp_file (char *tmp) +{ + if (!tmp) + return; + remove (tmp); + RELEASE(tmp); + + return; +} + +/* dpx_file_apply_filter() is used for converting unsupported graphics + * format to one of the formats that dvipdfmx can natively handle. + * 'input' is the filename of the original file and 'output' is actually + * temporal files 'generated' by the above routine. + * This should be system dependent. (MiKTeX may want something different) + * Please modify as appropriate (see also pdfximage.c and dvipdfmx.c). + */ +int +dpx_file_apply_filter (const char *cmdtmpl, + const char *input, const char *output, + unsigned char version) +{ + char *cmd = NULL; + const char *p, *q; + size_t n, size; + int error = 0; + + if (!cmdtmpl) + return -1; + else if (!input || !output) + return -1; + + size = strlen(cmdtmpl) + strlen(input) + strlen(output) + 3; + cmd = NEW(size, char); + memset(cmd, 0, size); + for (n = 0, p = cmdtmpl; *p != 0; p++) { +#define need(s,l,m,n) \ +if ((l) + (n) >= (m)) { \ + (m) += (n) + 128; \ + (s) = RENEW((s), (m), char); \ +} + if (p[0] == '%') { + p++; + switch (p[0]) { + case 'o': /* Output file name */ + need(cmd, n, size, strlen(output)); + strcpy(cmd + n, output); n += strlen(output); + break; + case 'i': /* Input filename */ + need(cmd, n, size, strlen(input)); + strcpy(cmd + n, input); n += strlen(input); + break; + case 'b': + need(cmd, n, size, strlen(input)); + q = strrchr(input, '.'); /* wrong */ + if (q) { + memcpy(cmd + n, input, (int) (q - input)); + n += (int) (q - input); + } else { + strcpy(cmd + n, input); n += strlen(input); + } + case 'v': /* Version number, e.g. 1.4 */ { + char buf[16]; + sprintf(buf, "1.%hu", (unsigned short) version); + need(cmd, n, size, strlen(buf)); + strcpy(cmd + n, buf); n += strlen(buf); + break; + } + case 0: + break; + case '%': + need(cmd, n, size, 1); + cmd[n] = '%'; n++; + break; + } + } else { + need(cmd, n, size, 1); + cmd[n] = p[0]; n++; + } + } + need(cmd, n, size, 1); + cmd[n] = '\0'; + if (strlen(cmd) == 0) { + RELEASE(cmd); + return -1; + } + + error = exec_spawn(cmd); + if (error) + WARN("Filtering file via command -->%s<-- failed.", cmd); + RELEASE(cmd); + + return error; +} + +static char _sbuf[128]; +/* + * SFNT type sigs: + * `true' (0x74727565): TrueType (Mac) + * `typ1' (0x74797031) (Mac): PostScript font housed in a sfnt wrapper + * 0x00010000: TrueType (Win)/OpenType + * `OTTO': PostScript CFF font with OpenType wrapper + * `ttcf': TrueType Collection + */ +static int +istruetype (FILE *fp) +{ + int n; + + rewind(fp); + n = fread(_sbuf, 1, 4, fp); + rewind(fp); + + if (n != 4) + return 0; + else if (!memcmp(_sbuf, "true", 4) || + !memcmp(_sbuf, "\0\1\0\0", 4)) /* This doesn't help... */ + return 1; + else if (!memcmp(_sbuf, "ttcf", 4)) + return 1; + + return 0; +} + +/* "OpenType" is only for ".otf" here */ +static int +isopentype (FILE *fp) +{ + int n; + + rewind(fp); + n = fread(_sbuf, 1, 4, fp); + rewind(fp); + + if (n != 4) + return 0; + else if (!memcmp(_sbuf, "OTTO", 4)) + return 1; + else + return 0; +} + +static int +ist1binary (FILE *fp) +{ + char *p; + int n; + + rewind(fp); + n = fread(_sbuf, 1, 21, fp); + rewind(fp); + + p = _sbuf; + if (n != 21) + return 0; + else if (p[0] != (char) 0x80 || p[1] < 0 || p[1] > 3) + return 0; + else if (!memcmp(p + 6, "%!PS-AdobeFont", 14) || + !memcmp(p + 6, "%!FontType1", 11)) + return 1; + else if (!memcmp(p + 6, "%!PS", 4)) { +#if 0 + p[20] = '\0'; p += 6; + WARN("Ambiguous PostScript resource type: %s", (char *) p); +#endif + return 1; + } + /* Otherwise ambiguious */ + return 0; +} + +/* %!PS-Adobe-x.y Resource-CMap */ +static int +ispscmap (FILE *fp) +{ + char *p; + p = mfgets(_sbuf, 128, fp); p[127] = '\0'; + if (!p || strlen(p) < 4 || memcmp(p, "%!PS", 4)) + return 0; + for (p += 4; *p && !isspace(*p); p++); + for ( ; *p && (*p == ' ' || *p == '\t'); p++); + if (*p == '\0' || strlen(p) < strlen("Resource-CMap")) + return 0; + else if (!memcmp(p, "Resource-CMap", strlen("Resource-CMap"))) + return 1; + /* Otherwise ambiguious */ + return 0; +} + +static int +isdfont (FILE *fp) +{ + int i, n; + unsigned long pos; + + rewind(fp); + + get_unsigned_quad(fp); + seek_absolute(fp, (pos = get_unsigned_quad(fp)) + 0x18); + seek_absolute(fp, pos + get_unsigned_pair(fp)); + n = get_unsigned_pair(fp); + for (i = 0; i <= n; i++) { + if (get_unsigned_quad(fp) == 0x73666e74UL) /* "sfnt" */ + return 1; + get_unsigned_quad(fp); + } + return 0; +} + +/* This actually opens files. */ +static int +qcheck_filetype (const char *fqpn, int type) +{ + int r = 1; + FILE *fp; + + if (!fqpn) + return 0; + + fp = MFOPEN(fqpn, FOPEN_RBIN_MODE); + if (!fp) { + WARN("File \"%s\" found but I could not open that...", fqpn); + return 0; + } + switch (type) { + case DPX_RES_TYPE_T1FONT: + r = ist1binary(fp); + break; + case DPX_RES_TYPE_TTFONT: + r = istruetype(fp); + break; + case DPX_RES_TYPE_OTFONT: + r = isopentype(fp); + break; + case DPX_RES_TYPE_CMAP: + r = ispscmap(fp); + break; + case DPX_RES_TYPE_DFONT: + r = isdfont(fp); + break; + } + MFCLOSE(fp); + + return r; +} + |