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-rw-r--r--atoms.c398
1 files changed, 398 insertions, 0 deletions
diff --git a/atoms.c b/atoms.c
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+/* This file is part of "reprepro"
+ * Copyright (C) 2003,2004,2005,2006,2007,2008,2009 Bernhard R. Link
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02111-1301 USA
+ */
+#include <config.h>
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "error.h"
+#include "mprintf.h"
+#include "strlist.h"
+#include "atoms.h"
+
+const char **atoms_architectures;
+const char **atoms_components;
+static const char * const packagetypes[5] = { "!!NONE!!", "dsc", "deb", "udeb", "ddeb" };
+const char **atoms_packagetypes = (const char **)&packagetypes;
+const char **atoms_commands;
+static int command_count;
+static const char * const types[4] = {
+ "architecture", "component", "packagetype", "command"
+};
+const char **atomtypes = (const char **)types;
+
+/* trivial implementation for now, perhaps make it more complicated later */
+static struct strlist architectures, components;
+
+retvalue atoms_init(int count) {
+ retvalue r;
+ strlist_init(&architectures);
+ strlist_init(&components);
+
+ /* add a 0th entry to all, so 0 means uninitialized */
+
+ r = strlist_add_dup(&architectures, "!!NONE!!");
+ if (RET_WAS_ERROR(r))
+ return r;
+ r = strlist_add_dup(&architectures, "source");
+ if (RET_WAS_ERROR(r))
+ return r;
+ r = strlist_add_dup(&architectures, "all");
+ if (RET_WAS_ERROR(r))
+ return r;
+ r = strlist_add_dup(&components, "!!NONE!!");
+ if (RET_WAS_ERROR(r))
+ return r;
+ /* a fallback component to put things without a component in */
+ r = strlist_add_dup(&components, "strange");
+ if (RET_WAS_ERROR(r))
+ return r;
+ atoms_components = (const char**)components.values;
+ atoms_architectures = (const char**)architectures.values;
+ command_count = count;
+ if (command_count > 0) {
+ atoms_commands = nzNEW(command_count + 1, const char*);
+ if (FAILEDTOALLOC(atoms_commands))
+ return RET_ERROR_OOM;
+ }
+ return RET_OK;
+}
+
+retvalue architecture_intern(const char *value, architecture_t *atom_p) {
+ retvalue r;
+ int i;
+
+ i = strlist_ofs(&architectures, value);
+ if (i >= 0) {
+ *atom_p = (architecture_t)i;
+ return RET_OK;
+ }
+ i = architectures.count;
+ r = strlist_add_dup(&architectures, value);
+ atoms_architectures = (const char**)architectures.values;
+ if (RET_IS_OK(r)) {
+ *atom_p = (architecture_t)i;
+ return RET_OK;
+ } else
+ return r;
+}
+retvalue component_intern(const char *value, component_t *atom_p) {
+ retvalue r;
+ int i;
+
+ i = strlist_ofs(&components, value);
+ if (i >= 0) {
+ *atom_p = (component_t)i;
+ return RET_OK;
+ }
+ i = components.count;
+ r = strlist_add_dup(&components, value);
+ atoms_components = (const char**)components.values;
+ if (RET_IS_OK(r)) {
+ *atom_p = (component_t)i;
+ return RET_OK;
+ } else
+ return r;
+}
+
+architecture_t architecture_find(const char *value) {
+ int i = strlist_ofs(&architectures, value);
+ if (i < 0)
+ return atom_unknown;
+ else
+ return (architecture_t)i;
+}
+
+architecture_t architecture_find_l(const char *value, size_t l) {
+ architecture_t a;
+
+ for (a = architectures.count - 1 ; a > 0 ; a--) {
+ const char *name = atoms_architectures[a];
+ size_t len = strlen(name);
+
+ if (len == l && memcmp(name, value, len) == 0)
+ return a;
+ }
+ return atom_unknown;
+}
+
+// TODO: this might be called a lot, perhaps optimize it...
+component_t component_find_l(const char *value, size_t l) {
+ component_t a;
+
+ for (a = components.count - 1 ; a > 0 ; a--) {
+ const char *name = atoms_components[a];
+ size_t len = strlen(name);
+
+ if (len == l && memcmp(name, value, len) == 0)
+ return a;
+ }
+ return atom_unknown;
+}
+
+component_t component_find(const char *value) {
+ int i = strlist_ofs(&components, value);
+ if (i < 0)
+ return atom_unknown;
+ else
+ return (architecture_t)i;
+}
+
+packagetype_t packagetype_find(const char *value) {
+ if (strcmp(value, "dsc") == 0)
+ return pt_dsc;
+ else if (strcmp(value, "deb") == 0)
+ return pt_deb;
+ else if (strcmp(value, "udeb") == 0)
+ return pt_udeb;
+ else if (strcmp(value, "ddeb") == 0)
+ return pt_ddeb;
+ else
+ return atom_unknown;
+}
+
+packagetype_t packagetype_find_l(const char *value, size_t len) {
+ if (len == 3) {
+ if (strncmp(value, "dsc", 3) == 0)
+ return pt_dsc;
+ else if (strncmp(value, "deb", 3) == 0)
+ return pt_deb;
+ } else if (len == 4) {
+ if (strncmp(value, "udeb", 4) == 0)
+ return pt_udeb;
+ else if (strncmp(value, "ddeb", 4) == 0)
+ return pt_ddeb;
+ }
+ return atom_unknown;
+}
+
+static inline command_t command_find(const char *value) {
+ command_t c;
+
+ for (c = command_count ; c > 0 ; c--) {
+ if (strcmp(atoms_commands[c], value) == 0)
+ return c;
+ }
+ return atom_unknown;
+}
+
+atom_t atom_find(enum atom_type type, const char *value) {
+ switch (type) {
+ case at_packagetype:
+ return packagetype_find(value);
+ case at_architecture:
+ return architecture_find(value);
+ case at_component:
+ return component_find(value);
+ case at_command:
+ return command_find(value);
+ default:
+ return atom_unknown;
+ }
+}
+
+retvalue atom_intern(enum atom_type type, const char *value, atom_t *atom_p) {
+ assert (type == at_architecture || type == at_component);
+ switch (type) {
+ case at_architecture:
+ return architecture_intern(value, atom_p);
+ case at_component:
+ return component_intern(value, atom_p);
+ default:
+ return RET_ERROR;
+ }
+}
+
+void atomlist_init(struct atomlist *list) {
+ list->count = 0; list->size = 0;
+ list->atoms = NULL;
+}
+
+void atomlist_done(struct atomlist *list) {
+ if (list->size > 0) {
+ assert (list->atoms != NULL);
+ free(list->atoms);
+ }
+ /* reset atoms but not size, so reuse can be caught */
+ list->atoms = NULL;
+}
+
+/* add a atom uniquely (perhaps sorted), RET_NOTHING when already there */
+retvalue atomlist_add_uniq(struct atomlist *list, atom_t atom) {
+ int i;
+ atom_t *n;
+
+ assert (atom_defined(atom));
+
+ for (i = 0 ; i < list->count ; i++) {
+ if (list->atoms[i] == atom)
+ return RET_NOTHING;
+ }
+ if (list->size <= list->count) {
+ n = realloc(list->atoms, (sizeof(atom_t))*(list->count + 8));
+ if (FAILEDTOALLOC(n))
+ return RET_ERROR_OOM;
+ list->size = list->count + 8;
+ list->atoms = n;
+ }
+ list->atoms[list->count++] = atom;
+ return RET_OK;
+}
+
+retvalue atomlist_add(struct atomlist *list, atom_t atom) {
+ atom_t *n;
+
+ assert (atom_defined(atom));
+
+ if (list->size <= list->count) {
+ n = realloc(list->atoms, (sizeof(atom_t))*(list->count + 8));
+ if (FAILEDTOALLOC(n))
+ return RET_ERROR_OOM;
+ list->size = list->count + 8;
+ list->atoms = n;
+ }
+ list->atoms[list->count++] = atom;
+ return RET_OK;
+}
+
+/* replace the contents of dest with those from orig, which get emptied */
+void atomlist_move(struct atomlist *dest, struct atomlist *orig) {
+ dest->atoms = orig->atoms;
+ dest->count = orig->count;
+ dest->size = orig->size;
+ /* reset atoms but not size, so reuse can be caught */
+ orig->atoms = NULL;
+}
+
+bool atomlist_hasexcept(const struct atomlist *list, atom_t atom) {
+ int i;
+
+ for (i = 0 ; i < list->count ; i++) {
+ if (list->atoms[i] != atom)
+ return true;
+ }
+ return false;
+}
+
+bool atomlist_in(const struct atomlist *list, atom_t atom) {
+ int i;
+
+ for (i = 0 ; i < list->count ; i++) {
+ if (list->atoms[i] == atom)
+ return true;
+ }
+ return false;
+}
+int atomlist_ofs(const struct atomlist *list, atom_t atom) {
+ int i;
+
+ for (i = 0 ; i < list->count ; i++) {
+ if (list->atoms[i] == atom)
+ return i;
+ }
+ return -1;
+}
+
+bool atomlist_subset(const struct atomlist *list, const struct atomlist *subset, atom_t *missing) {
+ int i, j;
+
+ for (j = 0 ; j < subset->count ; j++) {
+ atom_t atom = subset->atoms[j];
+
+ for (i = 0 ; i < list->count ; i++) {
+ if (list->atoms[i] == atom)
+ break;
+ }
+ if (i >= list->count) {
+ if (missing != NULL)
+ *missing = atom;
+ return false;
+ }
+ }
+ return true;
+}
+
+retvalue atomlist_fprint(FILE *file, enum atom_type type, const struct atomlist *list) {
+ const char **atoms = NULL;
+ int c;
+ atom_t *p;
+ retvalue result;
+
+ assert(list != NULL);
+ assert(file != NULL);
+
+ switch (type) {
+ case at_architecture:
+ atoms = atoms_architectures;
+ break;
+ case at_component:
+ atoms = atoms_components;
+ break;
+ case at_packagetype:
+ atoms = atoms_packagetypes;
+ break;
+ case at_command:
+ atoms = atoms_commands;
+ break;
+ }
+ assert(atoms != NULL);
+
+ c = list->count;
+ p = list->atoms;
+ result = RET_OK;
+ while (c > 0) {
+ if (fputs(atoms[*(p++)], file) == EOF)
+ result = RET_ERROR;
+ if (--c > 0 && fputc(' ', file) == EOF)
+ result = RET_ERROR;
+ }
+ return result;
+}
+
+component_t components_count(void) {
+ return components.count;
+}
+
+retvalue atomlist_filllist(enum atom_type type, struct atomlist *list, char *string, const char **missing) {
+ struct atomlist l;
+ char *e;
+ retvalue r;
+ atom_t a;
+
+ atomlist_init(&l);
+ while (*string != '\0') {
+ e = strchr(string, '|');
+ if (e == NULL)
+ e = strchr(string, '\0');
+ else
+ *(e++) = '\0';
+ a = atom_find(type, string);
+ if (!atom_defined(a)) {
+ atomlist_done(&l);
+ *missing = string;
+ return RET_NOTHING;
+ }
+ r = atomlist_add(&l, a);
+ if (RET_WAS_ERROR(r)) {
+ atomlist_done(&l);
+ return r;
+ }
+ string = e;
+ }
+ atomlist_move(list, &l);
+ return RET_OK;
+}