5 * This is part of ypp-sc-tools, a set of third-party tools for assisting
6 * players of Yohoho Puzzle Pirates.
8 * Copyright (C) 2009 Ian Jackson <ijackson@chiark.greenend.org.uk>
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 * Yohoho and Puzzle Pirates are probably trademarks of Three Rings and
24 * are used without permission. This program is not endorsed or
25 * sponsored by Three Rings.
30 void *mmalloc(size_t sz) {
33 sysassert( r= malloc(sz) );
36 void *mrealloc(void *p, size_t sz) {
39 sysassert( r= realloc(p,sz) );
45 static const char *basepath; /* as passed in by caller */
48 int dbfile_gzopen(const char *basepath_spec) {
51 basepath= basepath_spec;
53 char *zpath= masprintf("%s.gz", basepath);
54 int e= gzopen(zpath, O_RDONLY, &dbfile, &dbzcat, 0);
56 if (e) { errno=e; sysassert(errno==ENOENT); return 0; }
61 int dbfile_open(const char *tpath) {
67 dbfile= fopen(tpath,"r");
68 if (!dbfile) { sysassert(errno==ENOENT); return 0; }
72 void dbfile_close(void) {
73 gzclose(&dbfile, &dbzcat, basepath);
76 #define dbassertgl(x) ((x) ? (void)0 : dbfile_assertfail(file,line,#x))
78 void dbfile_getsline(char *lbuf, size_t lbufsz, const char *file, int line) {
80 char *s= fgets(lbuf,lbufsz,dbfile);
81 sysassert(!ferror(dbfile));
82 dbassertgl(!feof(dbfile));
85 dbassertgl(l>0); dbassertgl(lbuf[--l]=='\n');
89 int dbfile_vscanf(const char *fmt, va_list al) {
90 int r= vfscanf(dbfile,fmt,al);
91 sysassert(!ferror(dbfile));
95 int dbfile_scanf(const char *fmt, ...) {
98 int r= dbfile_vscanf(fmt,al);
103 void dbfile_assertfail(const char *file, int line, const char *m) {
105 fatal("Error in dictionary file %s.gz:\n"
106 " Requirement not met at %s:%d:\n"
108 basepath, file,line, m);
110 fatal("Error in dictionary file %s at byte %ld:\n"
111 " Requirement not met at %s:%d:\n"
113 basepath,(long)ftell(dbfile), file,line, m);
115 fatal("Semantic error in dictionaries:\n"
116 " Requirement not met at %s:%d:\n"
121 int gzopen(const char *zpath, int oflags, FILE **f_r, pid_t *pid_r,
122 const char *gziplevel /* 0 for read; may be 0, or "-1" etc. */) {
124 int zfd= open(zpath, oflags, 0666);
125 if (zfd<0) return errno;
128 sysassert(! pipe(pipefds) );
130 int oi,io; const char *cmd; const char *stdiomode;
131 switch ((oflags & O_ACCMODE)) {
132 case O_RDONLY: oi=0; io=1; cmd="gunzip"; stdiomode="r"; break;
133 case O_WRONLY: oi=1; io=0; cmd="gzip"; stdiomode="w"; break;
137 sysassert( (*pid_r=fork()) != -1 );
139 sysassert( dup2(zfd,oi)==oi );
140 sysassert( dup2(pipefds[io],io)==io );
141 sysassert(! close(zfd) );
142 sysassert(! close(pipefds[0]) );
143 sysassert(! close(pipefds[1]) );
144 execlp(cmd,cmd,gziplevel,(char*)0);
145 sysassert(!"execlp gzip/gunzip");
147 sysassert(! close(zfd) );
148 sysassert(! close(pipefds[io]) );
149 sysassert( *f_r= fdopen(pipefds[oi], stdiomode) );
154 void gzclose(FILE **f, pid_t *p, const char *what) {
157 sysassert(!ferror(*f));
158 sysassert(!fclose(*f));
161 char *process= masprintf("%s (de)compressor",what);
162 waitpid_check_exitstatus(*p,process,1);