/* ---------------------------------------------------------------------------- libconfig - A library for processing structured configuration files Copyright (C) 2005-2010 Mark A Lindner This file is part of libconfig. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, see . ---------------------------------------------------------------------------- */ #include "scanctx.h" #include "wincompat.h" #include #include #include #define STRING_BLOCK_SIZE 64 #define CHUNK_SIZE 32 /* ------------------------------------------------------------------------- */ static const char *err_bad_include = "cannot open include file"; static const char *err_include_too_deep = "include file nesting too deep"; /* ------------------------------------------------------------------------- */ static const char *__scanctx_add_filename(struct scan_context *ctx, const char *filename) { unsigned int count = ctx->num_filenames; const char **f; for(f = ctx->filenames; count > 0; ++f, --count) { if(!strcmp(*f, filename)) { free((void *)filename); return(*f); /* already in list */ } } if((ctx->num_filenames % CHUNK_SIZE) == 0) { ctx->filenames = (const char **)realloc( (void *)ctx->filenames, (ctx->num_filenames + CHUNK_SIZE) * sizeof(const char *)); } ctx->filenames[ctx->num_filenames] = filename; ++ctx->num_filenames; return(filename); } /* ------------------------------------------------------------------------- */ void scanctx_init(struct scan_context *ctx, const char *top_filename) { memset(ctx, 0, sizeof(struct scan_context)); if(top_filename) ctx->top_filename = __scanctx_add_filename(ctx, strdup(top_filename)); } /* ------------------------------------------------------------------------- */ const char **scanctx_cleanup(struct scan_context *ctx, unsigned int *num_filenames) { int i; for(i = 0; i < ctx->depth; ++i) fclose(ctx->streams[i]); free((void *)(strbuf_release(&(ctx->string)))); *num_filenames = ctx->num_filenames; return(ctx->filenames); } /* ------------------------------------------------------------------------- */ FILE *scanctx_push_include(struct scan_context *ctx, void *buffer, const char **error) { FILE *fp = NULL; const char *file; char *full_file = NULL; *error = NULL; if(ctx->depth == MAX_INCLUDE_DEPTH) { *error = err_include_too_deep; return(NULL); } file = scanctx_take_string(ctx); if(ctx->config->include_dir) { full_file = (char *)malloc(strlen(ctx->config->include_dir) + strlen(file) + 2); strcpy(full_file, ctx->config->include_dir); strcat(full_file, FILE_SEPARATOR); strcat(full_file, file); } fp = fopen(full_file ? full_file : file, "rt"); free((void *)full_file); if(fp) { ctx->streams[ctx->depth] = fp; ctx->files[ctx->depth] = __scanctx_add_filename(ctx, file); ctx->buffers[ctx->depth] = buffer; ++(ctx->depth); } else { free((void *)file); *error = err_bad_include; } return(fp); } /* ------------------------------------------------------------------------- */ void *scanctx_pop_include(struct scan_context *ctx) { void *buffer; if(ctx->depth == 0) return(NULL); /* stack underflow */ --(ctx->depth); buffer = ctx->buffers[ctx->depth]; fclose(ctx->streams[ctx->depth]); return(buffer); } /* ------------------------------------------------------------------------- */ char *scanctx_take_string(struct scan_context *ctx) { char *r = strbuf_release(&(ctx->string)); return(r ? r : strdup("")); } /* ------------------------------------------------------------------------- */ const char *scanctx_current_filename(struct scan_context *ctx) { return((ctx->depth == 0) ? ctx->top_filename : ctx->files[ctx->depth - 1]); } /* ------------------------------------------------------------------------- */ /* eof */ 0:43:10 +0000'>2012-02-26Revert "Clean up debian/rules"Jonathan McCrohan2-14/+24 2012-02-26Use inheritance in package descriptions in debian/controlJonathan McCrohan1-2/+0 2012-02-22Clean up debian/rulesJonathan McCrohan2-24/+14 2012-02-15Upload to experimental.debian/1.4.8-1_exp1Jonathan McCrohan1-1/+1 2012-02-12Nitpicky typos.Jonathan McCrohan2-3/+3 2012-02-12Make changes as per JCristau's advice.Jonathan McCrohan1-9/+3 2012-02-11Remove unused entries from debian/rulesJonathan McCrohan1-2/+0 2012-02-11Fix typo in bugclose changelogJonathan McCrohan1-1/+1 2012-02-11Fix typo in libconfig++dev.examplesJonathan McCrohan1-3/+3 2012-02-11Update changelog.Jonathan McCrohan1-2/+5 2012-02-11Remove forced install of examples in rules.Jonathan McCrohan1-2/+2 2012-02-11Fix Examples.Jonathan McCrohan6-34/+17 2012-02-11Remove makefile.Jonathan McCrohan1-7/+0 2012-02-11Move *.docs, *.install and *.examples to -dev.Jonathan McCrohan7-2/+2 2012-02-11Move to single -dev package.Jonathan McCrohan2-14/+12 2012-02-08Update package changelog.Jonathan McCrohan1-1/+1 2012-02-08Partial manual revert of move to libconfig*8.Jonathan McCrohan4-12/+12 2012-02-08Add my name to debian copyright.Jonathan McCrohan1-2/+3 2012-02-08Atomic commit. Rollback to libconfig8 packaging names.Jonathan McCrohan10-8/+8 2012-02-07Rename libconfig9 to libconfig8 to aid release teamJonathan McCrohan1-14/+14 2012-02-07Fix "closes typo"Jonathan McCrohan1-1/+1 2012-02-07Revert "Add symbols"Jonathan McCrohan3-739/+1 2012-02-07Revert "Fix b0rked symbol file."Jonathan McCrohan1-1/+1 2012-02-07Revert "Second attempt"Jonathan McCrohan2-0/+194 2012-01-29Second attemptJonathan McCrohan2-194/+0 2012-01-29Fix b0rked symbol file.Jonathan McCrohan1-1/+1 2012-01-29Add symbolsJonathan McCrohan3-1/+739 2012-01-26add examples properlyJonathan McCrohan1-0/+2 2012-01-26Update changelogJonathan McCrohan1-3/+6 2012-01-26fix typoJonathan McCrohan1-1/+1 2012-01-26fix accidental description changesJonathan McCrohan1-2/+2 2012-01-26more fucking around to please lintianJonathan McCrohan1-5/+2 2012-01-25Linitan fixesJonathan McCrohan2-3/+2 2012-01-25Split out debug packagesJonathan McCrohan2-1/+6 2011-12-31Fix debian/rulesJonathan McCrohan1-1/+1 2011-12-31Remove shlibsJonathan McCrohan1-2/+0 2011-12-31Remove NMU from changelogJonathan McCrohan1-1/+0 2011-12-31Lintian FixesJonathan McCrohan1-2/+4 2011-12-31Remove Makefile patchJonathan McCrohan1-1/+0 2011-12-31Update MakefilesJonathan McCrohan10-248/+8222 2011-12-31Updated makefilesJonathan McCrohan1-0/+1