Split the huge list of else ifs which was used for parsing 'desc', 'depends', 'files' and 'deltas' files, into separate functions and move them to a new file parse.c . This makes it possible for other backends to share the same parse code. Also change the parsing from the giant else if list to a single loop calling different functions as specified in an array of parser structs (see parse_lines() for details).
Move _alpm_delta_parse to parse.c and make it static. Signed-off-by: Henning Garus <[email protected]> --- I actually managed to make it longer, instead of shorter (well if you take out comments and license headers this version is roughly as long as the old one), however I think it is more readable. Feel free to call it overkill though. I don't really like the ugets stuff I used to get the next line, but I wanted this to work on something other than FILE*, even though this is not used (yet), and this was the best thing I could come up with. I toyed around with using fopencookie, but that sucks when it comes to portability (there is funopen on bsd, beyond that you are simply screwed). I removed the memset for the line array, it should be fairly safe and I ran valgrind with several pactests and it did not shout at me (at least after I supressed the numerous leaks reported for bash). Btw, is there a reason why pacman uses two different file formats (line based in db files vs. keyword = value in .PKGINFO ? lib/libalpm/Makefile.am | 1 + lib/libalpm/be_files.c | 222 +++++----------------------------- lib/libalpm/delta.c | 56 --------- lib/libalpm/delta.h | 1 - lib/libalpm/parse.c | 305 +++++++++++++++++++++++++++++++++++++++++++++++ lib/libalpm/parse.h | 40 ++++++ 6 files changed, 377 insertions(+), 248 deletions(-) create mode 100644 lib/libalpm/parse.c create mode 100644 lib/libalpm/parse.h diff --git a/lib/libalpm/Makefile.am b/lib/libalpm/Makefile.am index 871855e..5ed8866 100644 --- a/lib/libalpm/Makefile.am +++ b/lib/libalpm/Makefile.am @@ -27,6 +27,7 @@ libalpm_la_SOURCES = \ backup.h backup.c \ be_files.c \ be_package.c \ + parse.h parse.c \ cache.h cache.c \ conflict.h conflict.c \ db.h db.c \ diff --git a/lib/libalpm/be_files.c b/lib/libalpm/be_files.c index 21533ef..1066b60 100644 --- a/lib/libalpm/be_files.c +++ b/lib/libalpm/be_files.c @@ -31,7 +31,6 @@ #include <ctype.h> #include <time.h> #include <limits.h> /* PATH_MAX */ -#include <locale.h> /* setlocale */ /* libalpm */ #include "db.h" @@ -42,9 +41,9 @@ #include "alpm.h" #include "handle.h" #include "package.h" -#include "delta.h" #include "deps.h" #include "dload.h" +#include "parse.h" /* @@ -386,7 +385,8 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) { FILE *fp = NULL; char path[PATH_MAX]; - char line[513]; + char *pkgname = NULL; + char *pkgver = NULL; char *pkgpath = NULL; ALPM_LOG_FUNC; @@ -417,9 +417,6 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) _alpm_log(PM_LOG_FUNCTION, "loading package data for %s : level=0x%x\n", info->name, inforeq); - /* clear out 'line', to be certain - and to make valgrind happy */ - memset(line, 0, 513); - pkgpath = get_pkgpath(db, info); if(access(pkgpath, F_OK)) { @@ -429,6 +426,7 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) goto error; } + /* DESC */ if(inforeq & INFRQ_DESC) { snprintf(path, PATH_MAX, "%sdesc", pkgpath); @@ -436,139 +434,26 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) _alpm_log(PM_LOG_ERROR, _("could not open file %s: %s\n"), path, strerror(errno)); goto error; } - while(!feof(fp)) { - if(fgets(line, 256, fp) == NULL) { - break; - } - _alpm_strtrim(line); - if(strcmp(line, "%NAME%") == 0) { - if(fgets(line, 512, fp) == NULL) { - goto error; - } - if(strcmp(_alpm_strtrim(line), info->name) != 0) { - _alpm_log(PM_LOG_ERROR, _("%s database is inconsistent: name " - "mismatch on package %s\n"), db->treename, info->name); - } - } else if(strcmp(line, "%VERSION%") == 0) { - if(fgets(line, 512, fp) == NULL) { - goto error; - } - if(strcmp(_alpm_strtrim(line), info->version) != 0) { - _alpm_log(PM_LOG_ERROR, _("%s database is inconsistent: version " - "mismatch on package %s\n"), db->treename, info->name); - } - } else if(strcmp(line, "%FILENAME%") == 0) { - if(fgets(line, 512, fp) == NULL) { - goto error; - } - STRDUP(info->filename, _alpm_strtrim(line), goto error); - } else if(strcmp(line, "%DESC%") == 0) { - if(fgets(line, 512, fp) == NULL) { - goto error; - } - STRDUP(info->desc, _alpm_strtrim(line), goto error); - } else if(strcmp(line, "%GROUPS%") == 0) { - while(fgets(line, 512, fp) && strlen(_alpm_strtrim(line))) { - char *linedup; - STRDUP(linedup, _alpm_strtrim(line), goto error); - info->groups = alpm_list_add(info->groups, linedup); - } - } else if(strcmp(line, "%URL%") == 0) { - if(fgets(line, 512, fp) == NULL) { - goto error; - } - STRDUP(info->url, _alpm_strtrim(line), goto error); - } else if(strcmp(line, "%LICENSE%") == 0) { - while(fgets(line, 512, fp) && strlen(_alpm_strtrim(line))) { - char *linedup; - STRDUP(linedup, _alpm_strtrim(line), goto error); - info->licenses = alpm_list_add(info->licenses, linedup); - } - } else if(strcmp(line, "%ARCH%") == 0) { - if(fgets(line, 512, fp) == NULL) { - goto error; - } - STRDUP(info->arch, _alpm_strtrim(line), goto error); - } else if(strcmp(line, "%BUILDDATE%") == 0) { - if(fgets(line, 512, fp) == NULL) { - goto error; - } - _alpm_strtrim(line); - - char first = tolower(line[0]); - if(first > 'a' && first < 'z') { - struct tm tmp_tm = {0}; /* initialize to null in case of failure */ - setlocale(LC_TIME, "C"); - strptime(line, "%a %b %e %H:%M:%S %Y", &tmp_tm); - info->builddate = mktime(&tmp_tm); - setlocale(LC_TIME, ""); - } else { - info->builddate = atol(line); - } - } else if(strcmp(line, "%INSTALLDATE%") == 0) { - if(fgets(line, 512, fp) == NULL) { - goto error; - } - _alpm_strtrim(line); - - char first = tolower(line[0]); - if(first > 'a' && first < 'z') { - struct tm tmp_tm = {0}; /* initialize to null in case of failure */ - setlocale(LC_TIME, "C"); - strptime(line, "%a %b %e %H:%M:%S %Y", &tmp_tm); - info->installdate = mktime(&tmp_tm); - setlocale(LC_TIME, ""); - } else { - info->installdate = atol(line); - } - } else if(strcmp(line, "%PACKAGER%") == 0) { - if(fgets(line, 512, fp) == NULL) { - goto error; - } - STRDUP(info->packager, _alpm_strtrim(line), goto error); - } else if(strcmp(line, "%REASON%") == 0) { - if(fgets(line, 512, fp) == NULL) { - goto error; - } - info->reason = (pmpkgreason_t)atol(_alpm_strtrim(line)); - } else if(strcmp(line, "%SIZE%") == 0 || strcmp(line, "%CSIZE%") == 0) { - /* NOTE: the CSIZE and SIZE fields both share the "size" field - * in the pkginfo_t struct. This can be done b/c CSIZE - * is currently only used in sync databases, and SIZE is - * only used in local databases. - */ - if(fgets(line, 512, fp) == NULL) { - goto error; - } - info->size = atol(_alpm_strtrim(line)); - /* also store this value to isize if isize is unset */ - if(info->isize == 0) { - info->isize = info->size; - } - } else if(strcmp(line, "%ISIZE%") == 0) { - /* ISIZE (installed size) tag only appears in sync repositories, - * not the local one. */ - if(fgets(line, 512, fp) == NULL) { - goto error; - } - info->isize = atol(_alpm_strtrim(line)); - } else if(strcmp(line, "%MD5SUM%") == 0) { - /* MD5SUM tag only appears in sync repositories, - * not the local one. */ - if(fgets(line, 512, fp) == NULL) { - goto error; - } - STRDUP(info->md5sum, _alpm_strtrim(line), goto error); - } else if(strcmp(line, "%REPLACES%") == 0) { - while(fgets(line, 512, fp) && strlen(_alpm_strtrim(line))) { - char *linedup; - STRDUP(linedup, _alpm_strtrim(line), goto error); - info->replaces = alpm_list_add(info->replaces, linedup); - } - } else if(strcmp(line, "%FORCE%") == 0) { - info->force = 1; - } + STRDUP(pkgname, info->name, goto error); + STRDUP(pkgver, info->version, goto error); + if(_alpm_parse_desc(&_alpm_parse_from_file, fp, info) != 0) { + goto error; } + if(strcmp(pkgname,info->name) != 0) { + _alpm_log(PM_LOG_ERROR, _("%s database is inconsistent: name mismatch " + "on package %s\n"), db->treename, pkgname); + } + if(strcmp(pkgver,info->version) != 0) { + _alpm_log(PM_LOG_ERROR, _("%s database is inconsistent: version mismatch " + "on package %s\n"), db->treename, pkgver); + } + FREE(pkgname); + FREE(pkgver); + /* store size in isize if isize is unset */ + if(info->isize == 0) { + info->isize = info->size; + } + fclose(fp); fp = NULL; } @@ -580,21 +465,8 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) _alpm_log(PM_LOG_ERROR, _("could not open file %s: %s\n"), path, strerror(errno)); goto error; } - while(fgets(line, 256, fp)) { - _alpm_strtrim(line); - if(strcmp(line, "%FILES%") == 0) { - while(fgets(line, 512, fp) && strlen(_alpm_strtrim(line))) { - char *linedup; - STRDUP(linedup, _alpm_strtrim(line), goto error); - info->files = alpm_list_add(info->files, linedup); - } - } else if(strcmp(line, "%BACKUP%") == 0) { - while(fgets(line, 512, fp) && strlen(_alpm_strtrim(line))) { - char *linedup; - STRDUP(linedup, _alpm_strtrim(line), goto error); - info->backup = alpm_list_add(info->backup, linedup); - } - } + if(_alpm_parse_files(&_alpm_parse_from_file, fp, info) != 0) { + goto error; } fclose(fp); fp = NULL; @@ -607,33 +479,8 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) _alpm_log(PM_LOG_ERROR, _("could not open file %s: %s\n"), path, strerror(errno)); goto error; } - while(!feof(fp)) { - fgets(line, 255, fp); - _alpm_strtrim(line); - if(strcmp(line, "%DEPENDS%") == 0) { - while(fgets(line, 512, fp) && strlen(_alpm_strtrim(line))) { - pmdepend_t *dep = _alpm_splitdep(_alpm_strtrim(line)); - info->depends = alpm_list_add(info->depends, dep); - } - } else if(strcmp(line, "%OPTDEPENDS%") == 0) { - while(fgets(line, 512, fp) && strlen(_alpm_strtrim(line))) { - char *linedup; - STRDUP(linedup, _alpm_strtrim(line), goto error); - info->optdepends = alpm_list_add(info->optdepends, linedup); - } - } else if(strcmp(line, "%CONFLICTS%") == 0) { - while(fgets(line, 512, fp) && strlen(_alpm_strtrim(line))) { - char *linedup; - STRDUP(linedup, _alpm_strtrim(line), goto error); - info->conflicts = alpm_list_add(info->conflicts, linedup); - } - } else if(strcmp(line, "%PROVIDES%") == 0) { - while(fgets(line, 512, fp) && strlen(_alpm_strtrim(line))) { - char *linedup; - STRDUP(linedup, _alpm_strtrim(line), goto error); - info->provides = alpm_list_add(info->provides, linedup); - } - } + if(_alpm_parse_depends(&_alpm_parse_from_file, fp, info) != 0) { + goto error; } fclose(fp); fp = NULL; @@ -643,17 +490,8 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) if(inforeq & INFRQ_DELTAS) { snprintf(path, PATH_MAX, "%sdeltas", pkgpath); if((fp = fopen(path, "r"))) { - while(!feof(fp)) { - fgets(line, 255, fp); - _alpm_strtrim(line); - if(strcmp(line, "%DELTAS%") == 0) { - while(fgets(line, 512, fp) && strlen(_alpm_strtrim(line))) { - pmdelta_t *delta = _alpm_delta_parse(line); - if(delta) { - info->deltas = alpm_list_add(info->deltas, delta); - } - } - } + if(_alpm_parse_deltas(&_alpm_parse_from_file, fp, info) != 0) { + goto error; } fclose(fp); fp = NULL; @@ -675,6 +513,8 @@ int _alpm_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq) return(0); error: + free(pkgname); + free(pkgver); free(pkgpath); if(fp) { fclose(fp); diff --git a/lib/libalpm/delta.c b/lib/libalpm/delta.c index 523968e..5202e4b 100644 --- a/lib/libalpm/delta.c +++ b/lib/libalpm/delta.c @@ -25,7 +25,6 @@ #include <stdint.h> /* intmax_t */ #include <limits.h> #include <sys/types.h> -#include <regex.h> /* libalpm */ #include "delta.h" @@ -247,61 +246,6 @@ off_t _alpm_shortest_delta_path(alpm_list_t *deltas, return(bestsize); } -/** Parses the string representation of a pmdelta_t object. - * This function assumes that the string is in the correct format. - * This format is as follows: - * $deltafile $deltamd5 $deltasize $oldfile $newfile - * @param line the string to parse - * @return A pointer to the new pmdelta_t object - */ -/* TODO this does not really belong here, but in a parsing lib */ -pmdelta_t *_alpm_delta_parse(char *line) -{ - pmdelta_t *delta; - char *tmp = line, *tmp2; - regex_t reg; - - regcomp(®, - "^[^[:space:]]* [[:xdigit:]]{32} [[:digit:]]*" - " [^[:space:]]* [^[:space:]]*$", - REG_EXTENDED | REG_NOSUB | REG_NEWLINE); - if(regexec(®, line, 0, 0, 0) != 0) { - /* delta line is invalid, return NULL */ - regfree(®); - return(NULL); - } - regfree(®); - - CALLOC(delta, 1, sizeof(pmdelta_t), RET_ERR(PM_ERR_MEMORY, NULL)); - - tmp2 = tmp; - tmp = strchr(tmp, ' '); - *(tmp++) = '\0'; - STRDUP(delta->delta, tmp2, RET_ERR(PM_ERR_MEMORY, NULL)); - - tmp2 = tmp; - tmp = strchr(tmp, ' '); - *(tmp++) = '\0'; - STRDUP(delta->delta_md5, tmp2, RET_ERR(PM_ERR_MEMORY, NULL)); - - tmp2 = tmp; - tmp = strchr(tmp, ' '); - *(tmp++) = '\0'; - delta->delta_size = atol(tmp2); - - tmp2 = tmp; - tmp = strchr(tmp, ' '); - *(tmp++) = '\0'; - STRDUP(delta->from, tmp2, RET_ERR(PM_ERR_MEMORY, NULL)); - - tmp2 = tmp; - STRDUP(delta->to, tmp2, RET_ERR(PM_ERR_MEMORY, NULL)); - - _alpm_log(PM_LOG_DEBUG, "delta : %s %s '%lld'\n", delta->from, delta->to, (long long)delta->delta_size); - - return(delta); -} - void _alpm_delta_free(pmdelta_t *delta) { FREE(delta->from); diff --git a/lib/libalpm/delta.h b/lib/libalpm/delta.h index 4f426cb..3c4e4cf 100644 --- a/lib/libalpm/delta.h +++ b/lib/libalpm/delta.h @@ -39,7 +39,6 @@ struct __pmdelta_t { off_t download_size; }; -pmdelta_t *_alpm_delta_parse(char *line); void _alpm_delta_free(pmdelta_t *delta); off_t _alpm_shortest_delta_path(alpm_list_t *deltas, const char *to, alpm_list_t **path); diff --git a/lib/libalpm/parse.c b/lib/libalpm/parse.c new file mode 100644 index 0000000..31038fc --- /dev/null +++ b/lib/libalpm/parse.c @@ -0,0 +1,305 @@ +/* + * parse.c + * + * Copyright (c) 2006-2009 Pacman Development Team <[email protected]> + * Copyright (c) 2002-2006 by Judd Vinet <[email protected]> + * + * 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, see <http://www.gnu.org/licenses/>. + */ +#include "config.h" + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <ctype.h> +#include <locale.h> /* setlocale */ +#include <regex.h> +#include <time.h> + +/* libalpm */ +#include "parse.h" +#include "util.h" +#include "alpm_list.h" +#include "log.h" +#include "package.h" +#include "delta.h" +#include "deps.h" + +enum { + PARSE_FINISHED = 0, + PARSE_UNFINISHED = 1, + PARSE_ERROR = 2 +}; + +typedef struct parser { + char *keyword; + int (*func)(char*, void*); + void *saveto; +} parser_t; + +/** Parses the string representation of a pmdelta_t object. + * This function assumes that the string is in the correct format. + * This format is as follows: + * $deltafile $deltamd5 $deltasize $oldfile $newfile + * @param line the string to parse + * @return A pointer to the new pmdelta_t object + */ +static pmdelta_t *delta_parse(char *line) +{ + pmdelta_t *delta; + char *tmp = line, *tmp2; + regex_t reg; + + regcomp(®, + "^[^[:space:]]* [[:xdigit:]]{32} [[:digit:]]*" + " [^[:space:]]* [^[:space:]]*$", + REG_EXTENDED | REG_NOSUB | REG_NEWLINE); + if(regexec(®, line, 0, 0, 0) != 0) { + /* delta line is invalid, return NULL */ + regfree(®); + return(NULL); + } + regfree(®); + + CALLOC(delta, 1, sizeof(pmdelta_t), RET_ERR(PM_ERR_MEMORY, NULL)); + + tmp2 = tmp; + tmp = strchr(tmp, ' '); + *(tmp++) = '\0'; + STRDUP(delta->delta, tmp2, RET_ERR(PM_ERR_MEMORY, NULL)); + + tmp2 = tmp; + tmp = strchr(tmp, ' '); + *(tmp++) = '\0'; + STRDUP(delta->delta_md5, tmp2, RET_ERR(PM_ERR_MEMORY, NULL)); + + tmp2 = tmp; + tmp = strchr(tmp, ' '); + *(tmp++) = '\0'; + delta->delta_size = atol(tmp2); + + tmp2 = tmp; + tmp = strchr(tmp, ' '); + *(tmp++) = '\0'; + STRDUP(delta->from, tmp2, RET_ERR(PM_ERR_MEMORY, NULL)); + + tmp2 = tmp; + STRDUP(delta->to, tmp2, RET_ERR(PM_ERR_MEMORY, NULL)); + + _alpm_log(PM_LOG_DEBUG, "delta : %s %s '%lld'\n", delta->from, delta->to, (long long)delta->delta_size); + + return(delta); +} + +/** Parse line based data, as found in desc, depends, files and deltas files + * The data is expected to be in the following format: + * keyword + * [entry] + * [entry] + * ... + * <newline> + * [keyword] + * ... + * + * The handling of the data for each keyword is described by the matching + * struct of type parser_t. This struct holds a function pointer and a void + * pointer for each keyword. The function is called for the lines following a + * keyword until it returns PARSE_FINISHED. It is expected to handle the actual + * parsing and store the data at the passed void pointer. + * @param parsers describes how to parse data for each keyword + * @param nparsers size of parsers + * @param ugets pointer to an fgets like function, which gets called to get + * the next line + * @param from describes from where to read the next line, this is passed to + * ugets + */ +static int parse_lines(parser_t parsers[], int nparsers, ugets_t ugets, + void *from) +{ + int i, ret; + char line[513]; + parser_t *p = NULL; + + while((*ugets)(line, sizeof(line) - 1, from) != NULL) { + _alpm_strtrim(line); + if(p == NULL && strlen(line) == 0) { + continue; + } + if(p == NULL) { + for(i = 0; i < nparsers; i++) { + if(strcmp(line,parsers[i].keyword) == 0) { + p = &parsers[i]; + } + } + } + else { + ret = (*(p->func))(line, p->saveto); + if(ret == PARSE_FINISHED) { + p = NULL; + } + else if(ret == PARSE_ERROR) { + return(ret); + } + } + } + return(0); +} + +static int copy_line(char *line, void *target) { + STRDUP(*(char**)target, line, return(PARSE_ERROR)); + return(PARSE_FINISHED); +} + +static int parse_off_t(char *line, void *target) { + *(off_t*)target = (off_t)atol(line); + return(PARSE_FINISHED); +} + +static int parse_reason(char *line, void *target) { + *(pmpkgreason_t*)target = (pmpkgreason_t)atol(line); + return(PARSE_FINISHED); +} + +static int parse_date(char *line, void *target) { + char first = tolower(line[0]); + if(first > 'a' && first < 'z') { + struct tm tmp_tm = {0}; /* initialize to null in case of failure */ + setlocale(LC_TIME, "C"); + strptime(line, "%a %b %e %H:%M:%S %Y", &tmp_tm); + *(time_t*)target = mktime(&tmp_tm); + setlocale(LC_TIME, ""); + } else { + *(time_t*)target = atol(line); + } + return(PARSE_FINISHED); +} + +static int set_flag(char *line, void *target) { + *(unsigned short*)target = 1; + return(PARSE_FINISHED); +} + +static int copy_to_list(char *line, void *list) { + if(strlen(line) == 0) { + return(PARSE_FINISHED); + } + char *linedup; + STRDUP(linedup, line, RET_ERR(PM_ERR_MEMORY, PARSE_ERROR)); + *(alpm_list_t**)list = alpm_list_add(*(alpm_list_t**)list, linedup); + return(PARSE_UNFINISHED); +} + +static int deltas_to_list(char *line, void *list) { + if(strlen(line) == 0) { + return(PARSE_FINISHED); + } + pmdelta_t *delta = delta_parse(line); + if(delta != NULL) { + *(alpm_list_t**)list = alpm_list_add(*(alpm_list_t**)list, delta); + } + return(PARSE_UNFINISHED); +} + +static int deps_to_list(char *line, void *list) { + if(strlen(line) == 0) { + return(PARSE_FINISHED); + } + pmdepend_t *dep = _alpm_splitdep(line); + *(alpm_list_t**)list = alpm_list_add(*(alpm_list_t**)list, dep); + return(PARSE_UNFINISHED); +} + +char *_alpm_parse_from_file(char *buf,int size, void* fp) +{ + return(fgets(buf, size, (FILE*)fp)); +} + +char *_alpm_parse_from_archive(char *buf,int size, void* a) +{ + return(_alpm_archive_fgets(buf, size, (struct archive*)a)); +} + + +int _alpm_parse_desc(ugets_t ugets, void *from, pmpkg_t *pkg) +{ + ALPM_LOG_FUNC; + + parser_t parsers[] = { + {"%NAME%", ©_line, &pkg->name}, + {"%VERSION%", ©_line, &pkg->version}, + {"%FILENAME%", ©_line, &pkg->filename}, + {"%DESC%", ©_line, &pkg->desc}, + {"%GROUPS%", ©_to_list, &pkg->groups}, + {"%URL%", ©_line, &pkg->url}, + {"%LICENSE%", ©_to_list, &pkg->licenses}, + {"%ARCH%", ©_line, &pkg->arch}, + {"%BUILDDATE%", &parse_date, &pkg->builddate}, + {"%INSTALLDATE%", &parse_date, &pkg->installdate}, + {"%PACKAGER%", ©_line, &pkg->packager}, + {"%REASON%", &parse_reason, &pkg->reason}, + {"%SIZE%", &parse_off_t, &pkg->size}, + {"%CSIZE%", &parse_off_t, &pkg->size}, + {"%ISIZE%", &parse_off_t, &pkg->isize}, + {"%MD5SUM%", ©_line, &pkg->md5sum}, + {"%REPLACES%", ©_to_list, &pkg->replaces}, + {"%FORCE%", &set_flag, &pkg->force} + }; + int nparsers = sizeof(parsers) / sizeof(parser_t); + + return(parse_lines(parsers, nparsers, ugets, from)); +} + +int _alpm_parse_files(ugets_t ugets, void* from, + pmpkg_t *pkg) +{ + ALPM_LOG_FUNC; + + parser_t parsers[] = { + {"%FILES%", ©_to_list, &pkg->files}, + {"%BACKUP%", ©_to_list, &pkg->backup} + }; + int nparsers = sizeof(parsers) / sizeof(parser_t); + + return(parse_lines(parsers, nparsers, ugets, from)); +} + +int _alpm_parse_depends(char* (*ugets)(char*, int, void*), void *from, + pmpkg_t *pkg) +{ + ALPM_LOG_FUNC; + + parser_t parsers[] = { + {"%DEPENDS%", &deps_to_list, &pkg->depends}, + {"%OPTDEPENDS%", ©_to_list, &pkg->optdepends}, + {"%CONFLICTS%", ©_to_list, &pkg->conflicts}, + {"%PROVIDES%", ©_to_list, &pkg->provides} + }; + int nparsers = sizeof(parsers) / sizeof(parser_t); + + return(parse_lines(parsers, nparsers, ugets, from)); +} + +int _alpm_parse_deltas(ugets_t ugets, void *from, pmpkg_t *pkg) +{ + ALPM_LOG_FUNC; + + parser_t parsers[] = { + {"%DELTAS%", &deltas_to_list, &pkg->deltas} + }; + int nparsers = sizeof(parsers) / sizeof(parser_t); + + return(parse_lines(parsers, nparsers, ugets, from)); +} + +/* vim: set ts=2 sw=2 noet: */ diff --git a/lib/libalpm/parse.h b/lib/libalpm/parse.h new file mode 100644 index 0000000..d3ef77e --- /dev/null +++ b/lib/libalpm/parse.h @@ -0,0 +1,40 @@ +/* + * parse.h + * + * Copyright (c) 2006-2009 Pacman Development Team <[email protected]> + * Copyright (c) 2002-2006 by Judd Vinet <[email protected]> + * + * 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, see <http://www.gnu.org/licenses/>. + */ +#ifndef _ALPM_PARSE_H +#define _ALPM_PARSE_H + +#include "package.h" + +/* An fgets like function, argument for the parse functions */ +typedef char *(*ugets_t)(char*, int, void*); + +/* arguments for the parse functions (ugets_t) */ +char *_alpm_parse_from_file(char*, int, void*); +char *_alpm_parse_from_archive(char*, int, void*); + +/* parse functions */ +int _alpm_parse_desc(ugets_t, void*, pmpkg_t*); +int _alpm_parse_files(ugets_t, void*, pmpkg_t*); +int _alpm_parse_depends(ugets_t, void*, pmpkg_t*); +int _alpm_parse_deltas(ugets_t, void*, pmpkg_t*); + +#endif /* _ALPM_PARSE_H */ + +/* vim: set ts=2 sw=2 noet: */ -- 1.6.4.4
