/[magellan-source]/trunk/mkinitrd-magellan/busybox/archival/dpkg.c

Diff of /trunk/mkinitrd-magellan/busybox/archival/dpkg.c

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-revision 815 by niro,
Sat Sep  1 22:45:15 2007 UTC
+revision 816 by niro,
Fri Apr 24 18:33:46 2009 UTC
 Line 24
   *
   */
- #include "busybox.h"
+ #include "libbb.h"
+ #include <fnmatch.h>
  #include "unarchive.h"
  /* note: if you vary hash_prime sizes be aware,
-Line 53
+Line 54
   *      and available file */
  #define PACKAGE_HASH_PRIME 10007
  typedef struct edge_s {
- 	unsigned operator:3;
+ 	unsigned operator:4; /* was:3 */
  	unsigned type:4;
- 	unsigned name:14;
+ 	unsigned name:16; /* was:14 */
- 	unsigned version:14;
+ 	unsigned version:16; /* was:14 */
  } edge_t;
  typedef struct common_node_s {
- 	unsigned name:14;
+ 	unsigned name:16; /* was:14 */
- 	unsigned version:14;
+ 	unsigned version:16; /* was:14 */
- 	unsigned num_of_edges:14;
+ 	unsigned num_of_edges:16; /* was:14 */
  	edge_t **edge;
  } common_node_t;
-Line 71 
 typedef struct common_node_s {
+Line 72 
 typedef struct common_node_s {
   * likely to be installed at any one time, so there is a bit of leeway here */
  #define STATUS_HASH_PRIME 8191
  typedef struct status_node_s {
- 	unsigned package:14;	/* has to fit PACKAGE_HASH_PRIME */
+ 	unsigned package:16; /* was:14 */       /* has to fit PACKAGE_HASH_PRIME */
- 	unsigned status:14;		/* has to fit STATUS_HASH_PRIME */
+ 	unsigned status:16; /* was:14 */        /* has to fit STATUS_HASH_PRIME */
  } status_node_t;
- /* Were statically declared here, but such a big bss is nommu-unfriendly */
- static char **name_hashtable;             /* [NAME_HASH_PRIME + 1] */
+ /* Globals */
- static common_node_t **package_hashtable; /* [PACKAGE_HASH_PRIME + 1] */
+ struct globals {
- static status_node_t **status_hashtable;  /* [STATUS_HASH_PRIME + 1] */
+ 	char          *name_hashtable[NAME_HASH_PRIME + 1];
+ 	common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
+ 	status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
+ };
+ #define G (*ptr_to_globals)
+ #define name_hashtable    (G.name_hashtable   )
+ #define package_hashtable (G.package_hashtable)
+ #define status_hashtable  (G.status_hashtable )
+ #define INIT_G() do { \
+ 	SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
+ } while (0)
  /* Even numbers are for 'extras', like ored dependencies or null */
  enum edge_type_e {
-Line 107 
 enum operator_e {
+Line 119 
 enum operator_e {
  typedef struct deb_file_s {
  	char *control_file;
  	char *filename;
- 	unsigned package:14;
+ 	unsigned package:16; /* was:14 */
  } deb_file_t;
  static void make_hash(const char *key, unsigned *start, unsigned *decrement, const int hash_prime)
  {
- 	unsigned long int hash_num = key[0];
+ 	unsigned long hash_num = key[0];
  	int len = strlen(key);
  	int i;
-Line 124 
 static void make_hash(const char *key, u
+Line 136 
 static void make_hash(const char *key, u
  		 * shift amount is mod 24 because long int is 32 bit and data
  		 * to be shifted is 8, don't want to shift data to where it has
  		 * no effect*/
- 		hash_num += ((key[i] + key[i-1]) << ((key[i] * i) % 24));
+ 		hash_num += (key[i] + key[i-1]) << ((key[i] * i) % 24);
  	}
  	*start = (unsigned) hash_num % hash_prime;
  	*decrement = (unsigned) 1 + (hash_num % (hash_prime - 1));
-Line 133 
 static void make_hash(const char *key, u
+Line 145 
 static void make_hash(const char *key, u
  /* this adds the key to the hash table */
  static int search_name_hashtable(const char *key)
  {
- 	unsigned probe_address = 0;
+ 	unsigned probe_address;
- 	unsigned probe_decrement = 0;
+ 	unsigned probe_decrement;
  	make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
  	while (name_hashtable[probe_address] != NULL) {
-Line 155 
 static int search_name_hashtable(const c
+Line 167 
 static int search_name_hashtable(const c
   */
  static unsigned search_status_hashtable(const char *key)
  {
- 	unsigned probe_address = 0;
+ 	unsigned probe_address;
- 	unsigned probe_decrement = 0;
+ 	unsigned probe_decrement;
  	make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
  	while (status_hashtable[probe_address] != NULL) {
-Line 312 
 static int test_version(const unsigned v
+Line 324 
 static int test_version(const unsigned v
  	return FALSE;
  }
  static int search_package_hashtable(const unsigned name, const unsigned version, const unsigned operator)
  {
- 	unsigned probe_address = 0;
+ 	unsigned probe_address;
- 	unsigned probe_decrement = 0;
+ 	unsigned probe_decrement;
  	make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
  	while (package_hashtable[probe_address] != NULL) {
-Line 352 
 static int search_package_hashtable(cons
+Line 363 
 static int search_package_hashtable(cons
   * FIXME: I don't think this is very efficient, but I thought I'd keep
   * it simple for now until it proves to be a problem.
   */
- static int search_for_provides(int needle, int start_at) {
+ static int search_for_provides(int needle, int start_at)
+ {
  	int i, j;
  	common_node_t *p;
  	for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
-Line 371 
 static int search_for_provides(int needl
+Line 383 
 static int search_for_provides(int needl
   */
  static void add_edge_to_node(common_node_t *node, edge_t *edge)
  {
- 	node->num_of_edges++;
+ 	node->edge = xrealloc_vector(node->edge, 2, node->num_of_edges);
- 	node->edge = xrealloc(node->edge, sizeof(edge_t) * (node->num_of_edges + 1));
+ 	node->edge[node->num_of_edges++] = edge;
- 	node->edge[node->num_of_edges - 1] = edge;
  }
  /*
-Line 409 
 static void add_split_dependencies(commo
+Line 420 
 static void add_split_dependencies(commo
  		if ((edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS)
  		 && (strcmp(field, field2) != 0)
  		) {
- 			or_edge = xmalloc(sizeof(edge_t));
+ 			or_edge = xzalloc(sizeof(edge_t));
  			or_edge->type = edge_type + 1;
  			or_edge->name = search_name_hashtable(field);
- 			or_edge->version = 0; // tracks the number of altenatives
+ 			//or_edge->version = 0; // tracks the number of alternatives
  			add_edge_to_node(parent_node, or_edge);
  		}
-Line 431 
 static void add_split_dependencies(commo
+Line 442 
 static void add_split_dependencies(commo
  				edge->version = search_name_hashtable("ANY");
  			} else {
  				/* Skip leading ' ' or '(' */
- 				version += strspn(field2, " (");
+ 				version += strspn(version, " (");
  				/* Calculate length of any operator characters */
  				offset_ch = strspn(version, "<=>");
  				/* Determine operator */
  				if (offset_ch > 0) {
  					if (strncmp(version, "=", offset_ch) == 0) {
  						edge->operator = VER_EQUAL;
- 					}
+ 					} else if (strncmp(version, "<<", offset_ch) == 0) {
- 					else if (strncmp(version, "<<", offset_ch) == 0) {
  						edge->operator = VER_LESS;
- 					}
+ 					} else if (strncmp(version, "<=", offset_ch) == 0) {
- 					else if (strncmp(version, "<=", offset_ch) == 0) {
  						edge->operator = VER_LESS_EQUAL;
- 					}
+ 					} else if (strncmp(version, ">>", offset_ch) == 0) {
- 					else if (strncmp(version, ">>", offset_ch) == 0) {
  						edge->operator = VER_MORE;
- 					}
+ 					} else if (strncmp(version, ">=", offset_ch) == 0) {
- 					else if (strncmp(version, ">=", offset_ch) == 0) {
  						edge->operator = VER_MORE_EQUAL;
  					} else {
  						bb_error_msg_and_die("illegal operator");
-Line 472 
 static void add_split_dependencies(commo
+Line 479 
 static void add_split_dependencies(commo
  				or_edge->version++;
  			add_edge_to_node(parent_node, edge);
- 		} while ((field2 = strtok_r(NULL, "|", &line_ptr2)) != NULL);
+ 			field2 = strtok_r(NULL, "|", &line_ptr2);
+ 		} while (field2 != NULL);
  		free(line2);
- 	} while ((field = strtok_r(NULL, ",", &line_ptr1)) != NULL);
+ 		field = strtok_r(NULL, ",", &line_ptr1);
+ 	} while (field != NULL);
  	free(line);
  }
-Line 577 
 static int read_package_field(const char
+Line 588 
 static int read_package_field(const char
  static unsigned fill_package_struct(char *control_buffer)
  {
- 	static const char *const field_names[] = { "Package", "Version",
+ 	static const char field_names[] ALIGN1 =
- 		"Pre-Depends", "Depends","Replaces", "Provides",
+ 		"Package\0""Version\0"
- 		"Conflicts", "Suggests", "Recommends", "Enhances", 0
+ 		"Pre-Depends\0""Depends\0""Replaces\0""Provides\0"
- 	};
+ 		"Conflicts\0""Suggests\0""Recommends\0""Enhances\0";
  	common_node_t *new_node = xzalloc(sizeof(common_node_t));
  	char *field_name;
-Line 597 
 static unsigned fill_package_struct(char
+Line 608 
 static unsigned fill_package_struct(char
  				&field_name, &field_value);
  		if (field_name == NULL) {
- 			goto fill_package_struct_cleanup; /* Oh no, the dreaded goto statement ! */
+ 			goto fill_package_struct_cleanup;
  		}
- 		field_num = index_in_str_array(field_names, field_name);
+ 		field_num = index_in_strings(field_names, field_name);
  		switch (field_num) {
  		case 0: /* Package */
  			new_node->name = search_name_hashtable(field_value);
-Line 643 
 static unsigned fill_package_struct(char
+Line 654 
 static unsigned fill_package_struct(char
  		return -1;
  	}
  	num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
- 	if (package_hashtable[num] == NULL) {
+ 	free_package(package_hashtable[num]);
- 		package_hashtable[num] = new_node;
+ 	package_hashtable[num] = new_node;
- 	} else {
- 		free_package(new_node);
- 	}
  	return num;
  }
-Line 706 
 static void set_status(const unsigned st
+Line 714 
 static void set_status(const unsigned st
  	new_status = xasprintf("%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
  	status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
  	free(new_status);
- 	return;
  }
- static const char *describe_status(int status_num) {
+ static const char *describe_status(int status_num)
- 	int status_want, status_state ;
+ {
+ 	int status_want, status_state;
  	if (status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0)
- 		return "is not installed or flagged to be installed\n";
+ 		return "is not installed or flagged to be installed";
  	status_want = get_status(status_num, 1);
  	status_state = get_status(status_num, 3);
-Line 725 
 static const char *describe_status(int s
+Line 733 
 static const char *describe_status(int s
  		if (status_want == search_name_hashtable("purge"))
  			return "is marked to be purged";
  	}
- 	if (status_want ==  search_name_hashtable("unknown"))
+ 	if (status_want == search_name_hashtable("unknown"))
  		return "is in an indeterminate state";
  	if (status_want == search_name_hashtable("install"))
  		return "is marked to be installed";
-Line 733 
 static const char *describe_status(int s
+Line 741 
 static const char *describe_status(int s
  	return "is not installed or flagged to be installed";
  }
  static void index_status_file(const char *filename)
  {
  	FILE *status_file;
-Line 742 
 static void index_status_file(const char
+Line 749 
 static void index_status_file(const char
  	status_node_t *status_node = NULL;
  	unsigned status_num;
- 	status_file = xfopen(filename, "r");
+ 	status_file = xfopen_for_read(filename);
- 	while ((control_buffer = xmalloc_fgets_str(status_file, "\n\n")) != NULL) {
+ 	while ((control_buffer = xmalloc_fgetline_str(status_file, "\n\n")) != NULL) {
  		const unsigned package_num = fill_package_struct(control_buffer);
  		if (package_num != -1) {
  			status_node = xmalloc(sizeof(status_node_t));
-Line 763 
 static void index_status_file(const char
+Line 770 
 static void index_status_file(const char
  		free(control_buffer);
  	}
  	fclose(status_file);
- 	return;
  }
  static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
-Line 780 
 static void write_buffer_no_status(FILE
+Line 786 
 static void write_buffer_no_status(FILE
  			fprintf(new_status_file, "%s: %s\n", name, value);
  		}
  	}
- 	return;
  }
  /* This could do with a cleanup */
  static void write_status_file(deb_file_t **deb_file)
  {
- 	FILE *old_status_file = xfopen("/var/lib/dpkg/status", "r");
+ 	FILE *old_status_file = xfopen_for_read("/var/lib/dpkg/status");
- 	FILE *new_status_file = xfopen("/var/lib/dpkg/status.udeb", "w");
+ 	FILE *new_status_file = xfopen_for_write("/var/lib/dpkg/status.udeb");
  	char *package_name;
  	char *status_from_file;
  	char *control_buffer = NULL;
-Line 798 
 static void write_status_file(deb_file_t
+Line 803 
 static void write_status_file(deb_file_t
  	int i = 0;
  	/* Update previously known packages */
- 	while ((control_buffer = xmalloc_fgets_str(old_status_file, "\n\n")) != NULL) {
+ 	while ((control_buffer = xmalloc_fgetline_str(old_status_file, "\n\n")) != NULL) {
- 		if ((tmp_string = strstr(control_buffer, "Package:")) == NULL) {
+ 		tmp_string = strstr(control_buffer, "Package:");
+ 		if (tmp_string == NULL) {
  			continue;
  		}
-Line 824 
 static void write_status_file(deb_file_t
+Line 830 
 static void write_status_file(deb_file_t
  			if (strcmp(status_from_file, status_from_hashtable) != 0) {
  				/* New status isnt exactly the same as old status */
  				const int state_status = get_status(status_num, 3);
- 				if ((strcmp("installed", name_hashtable[state_status]) == 0) ||
+ 				if ((strcmp("installed", name_hashtable[state_status]) == 0)
- 					(strcmp("unpacked", name_hashtable[state_status]) == 0)) {
+ 				 || (strcmp("unpacked", name_hashtable[state_status]) == 0)
+ 				) {
  					/* We need to add the control file from the package */
  					i = 0;
  					while (deb_file[i] != NULL) {
-Line 890 
 static void write_status_file(deb_file_t
+Line 897 
 static void write_status_file(deb_file_t
  			}
  		}
  		/* If the package from the status file wasnt handle above, do it now*/
- 		if (! write_flag) {
+ 		if (!write_flag) {
  			fprintf(new_status_file, "%s\n\n", control_buffer);
  		}
-Line 911 
 static void write_status_file(deb_file_t
+Line 918 
 static void write_status_file(deb_file_t
  	fclose(old_status_file);
  	fclose(new_status_file);
  	/* Create a separate backfile to dpkg */
  	if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
- 		struct stat stat_buf;
+ 		if (errno != ENOENT)
- 		xstat("/var/lib/dpkg/status", &stat_buf);
+ 			bb_error_msg_and_die("cannot create backup status file");
  		/* Its ok if renaming the status file fails because status
  		 * file doesnt exist, maybe we are starting from scratch */
  		bb_error_msg("no status file found, creating new one");
  	}
- 	if (rename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status") == -1) {
+ 	xrename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status");
- 		bb_error_msg_and_die("DANGER: cannot create status file, "
- 			"you need to manually repair your status file");
- 	}
  }
  /* This function returns TRUE if the given package can satisfy a
-Line 951 
 static int package_satisfies_dependency(
+Line 954 
 static int package_satisfies_dependency(
  	return 0;
  }
- static int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
+ static int check_deps(deb_file_t **deb_file, int deb_start /*, int dep_max_count - ?? */)
  {
  	int *conflicts = NULL;
  	int conflicts_num = 0;
-Line 969 
 static int check_deps(deb_file_t **deb_f
+Line 972 
 static int check_deps(deb_file_t **deb_f
  	 * installed package for conflicts*/
  	while (deb_file[i] != NULL) {
  		const unsigned package_num = deb_file[i]->package;
- 		conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
+ 		conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
  		conflicts[conflicts_num] = package_num;
  		conflicts_num++;
  		/* add provides to conflicts list */
-Line 986 
 static int check_deps(deb_file_t **deb_f
+Line 989 
 static int check_deps(deb_file_t **deb_f
  					new_node->version = package_hashtable[package_num]->edge[j]->version;
  					package_hashtable[conflicts_package_num] = new_node;
  				}
- 				conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
+ 				conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
  				conflicts[conflicts_num] = conflicts_package_num;
  				conflicts_num++;
  			}
-Line 1071 
 static int check_deps(deb_file_t **deb_f
+Line 1074 
 static int check_deps(deb_file_t **deb_f
  			const edge_t *package_edge = package_node->edge[j];
  			unsigned package_num;
- 			if (package_edge->type == EDGE_OR_PRE_DEPENDS ||
+ 			if (package_edge->type == EDGE_OR_PRE_DEPENDS
- 			    package_edge->type == EDGE_OR_DEPENDS) {	/* start an EDGE_OR_ list */
+ 			 || package_edge->type == EDGE_OR_DEPENDS
+ 			) {	/* start an EDGE_OR_ list */
  				number_of_alternatives = package_edge->version;
  				root_of_alternatives = package_edge;
  				continue;
- 			} else if (number_of_alternatives == 0) {	/* not in the middle of an EDGE_OR_ list */
+ 			}
+ 			if (number_of_alternatives == 0) {	/* not in the middle of an EDGE_OR_ list */
  				number_of_alternatives = 1;
  				root_of_alternatives = NULL;
  			}
-Line 1126 
 static int check_deps(deb_file_t **deb_f
+Line 1131 
 static int check_deps(deb_file_t **deb_f
  							name_hashtable[package_node->name],
  							package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
  							name_hashtable[root_of_alternatives->name]);
- 					else
+ 					bb_error_msg_and_die(
- 						bb_error_msg_and_die(
+ 						"package %s %sdepends on %s, which %s\n",
- 							"package %s %sdepends on %s, which %s\n",
+ 						name_hashtable[package_node->name],
- 							name_hashtable[package_node->name],
+ 						package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
- 							package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
+ 						name_hashtable[package_edge->name],
- 							name_hashtable[package_edge->name],
+ 						describe_status(status_num));
- 							describe_status(status_num));
+ 				}
- 				} else if (result == 0 && number_of_alternatives) {
+ 				if (result == 0 && number_of_alternatives) {
  					/* we've found a package which
  					 * satisfies the dependency,
  					 * so skip over the rest of
-Line 1152 
 static int check_deps(deb_file_t **deb_f
+Line 1157 
 static int check_deps(deb_file_t **deb_f
  static char **create_list(const char *filename)
  {
  	FILE *list_stream;
- 	char **file_list = NULL;
+ 	char **file_list;
- 	char *line = NULL;
+ 	char *line;
- 	int count = 0;
+ 	int count;
  	/* don't use [xw]fopen here, handle error ourself */
- 	list_stream = fopen(filename, "r");
+ 	list_stream = fopen_for_read(filename);
  	if (list_stream == NULL) {
  		return NULL;
  	}
- 	while ((line = xmalloc_getline(list_stream)) != NULL) {
+ 	file_list = NULL;
- 		file_list = xrealloc(file_list, sizeof(char *) * (count + 2));
+ 	count = 0;
- 		file_list[count] = line;
+ 	while ((line = xmalloc_fgetline(list_stream)) != NULL) {
- 		count++;
+ 		file_list = xrealloc_vector(file_list, 2, count);
+ 		file_list[count++] = line;
+ 		/*file_list[count] = NULL; - xrealloc_vector did it */
  	}
  	fclose(list_stream);
- 	if (count == 0) {
+ 	return file_list;
- 		return NULL;
- 	} else {
- 		file_list[count] = NULL;
- 		return file_list;
- 	}
  }
  /* maybe i should try and hook this into remove_file.c somehow */
  static int remove_file_array(char **remove_names, char **exclude_names)
  {
  	struct stat path_stat;
- 	int match_flag;
+ 	int remove_flag = 1; /* not removed anything yet */
- 	int remove_flag = FALSE;
+ 	int i, j;
- 	int i,j;
  	if (remove_names == NULL) {
- 		return FALSE;
+ 		return 0;
  	}
  	for (i = 0; remove_names[i] != NULL; i++) {
- 		match_flag = FALSE;
  		if (exclude_names != NULL) {
- 			for (j = 0; exclude_names[j] != 0; j++) {
+ 			for (j = 0; exclude_names[j] != NULL; j++) {
  				if (strcmp(remove_names[i], exclude_names[j]) == 0) {
- 					match_flag = TRUE;
+ 					goto skip;
- 					break;
  				}
  			}
  		}
- 		if (!match_flag) {
+ 		/* TODO: why we are checking lstat? we can just try rm/rmdir */
- 			if (lstat(remove_names[i], &path_stat) < 0) {
+ 		if (lstat(remove_names[i], &path_stat) < 0) {
- 				continue;
+ 			continue;
- 			}
+ 		}
- 			if (S_ISDIR(path_stat.st_mode)) {
+ 		if (S_ISDIR(path_stat.st_mode)) {
- 				if (rmdir(remove_names[i]) != -1) {
+ 			remove_flag &= rmdir(remove_names[i]); /* 0 if no error */
- 					remove_flag = TRUE;
+ 		} else {
- 				}
+ 			remove_flag &= unlink(remove_names[i]); /* 0 if no error */
- 			} else {
- 				if (unlink(remove_names[i]) != -1) {
- 					remove_flag = TRUE;
- 				}
- 			}
  		}
+  skip:
+ 		continue;
  	}
- 	return remove_flag;
+ 	return (remove_flag == 0);
  }
- static int run_package_script(const char *package_name, const char *script_type)
+ static void run_package_script_or_die(const char *package_name, const char *script_type)
  {
- 	struct stat path_stat;
  	char *script_path;
  	int result;
  	script_path = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, script_type);
- 	/* If the file doesnt exist is isnt a fatal */
+ 	/* If the file doesnt exist is isnt fatal */
- 	result = lstat(script_path, &path_stat) < 0 ? EXIT_SUCCESS : system(script_path);
+ 	result = access(script_path, F_OK) ? EXIT_SUCCESS : system(script_path);
  	free(script_path);
- 	return result;
+ 	if (result)
+ 		bb_error_msg_and_die("%s failed, exit code %d", script_type, result);
  }
- static const char *all_control_files[] = {"preinst", "postinst", "prerm", "postrm",
+ /*
- 	"list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
+ The policy manual defines what scripts get called when and with
+ what arguments. I realize that busybox does not support all of
+ these scenarios, but it does support some of them; it does not,
+ however, run them with any parameters in run_package_script_or_die().
+ Here are the scripts:
+ preinst install
+ preinst install <old_version>
+ preinst upgrade <old_version>
+ preinst abort_upgrade <new_version>
+ postinst configure <most_recent_version>
+ postinst abort-upgade <new_version>
+ postinst abort-remove
+ postinst abort-remove in-favour <package> <version>
+ postinst abort-deconfigure in-favor <failed_install_package> removing <conflicting_package> <version>
+ prerm remove
+ prerm upgrade <new_version>
+ prerm failed-upgrade <old_version>
+ prerm remove in-favor <package> <new_version>
+ prerm deconfigure in-favour <package> <version> removing <package> <version>
+ postrm remove
+ postrm purge
+ postrm upgrade <new_version>
+ postrm failed-upgrade <old_version>
+ postrm abort-install
+ postrm abort-install <old_version>
+ postrm abort-upgrade <old_version>
+ postrm disappear <overwriter> <version>
+ */
+ static const char *const all_control_files[] = {
+ 	"preinst", "postinst", "prerm", "postrm",
+ 	"list", "md5sums", "shlibs", "conffiles",
+ 	"config", "templates"
+ };
  static char **all_control_list(const char *package_name)
  {
-Line 1239 
 static char **all_control_list(const cha
+Line 1268 
 static char **all_control_list(const cha
  	char **remove_files;
  	/* Create a list of all /var/lib/dpkg/info/<package> files */
- 	remove_files = xzalloc(sizeof(all_control_files));
+ 	remove_files = xzalloc(sizeof(all_control_files) + sizeof(char*));
- 	while (all_control_files[i]) {
+ 	while (i < ARRAY_SIZE(all_control_files)) {
- 		remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, all_control_files[i]);
+ 		remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s",
+ 				package_name, all_control_files[i]);
  		i++;
  	}
-Line 1250 
 static char **all_control_list(const cha
+Line 1280 
 static char **all_control_list(const cha
  static void free_array(char **array)
  {
  	if (array) {
  		unsigned i = 0;
  		while (array[i]) {
-Line 1265 
 static void free_array(char **array)
+Line 1294 
 static void free_array(char **array)
   * the status_hashtable to retrieve the info. This results in smaller code than
   * scanning the status file. The resulting list, however, is unsorted.
   */
- static void list_packages(void)
+ static void list_packages(const char *pattern)
  {
  	int i;
-Line 1273 
 static void list_packages(void)
+Line 1302 
 static void list_packages(void)
  	puts("+++-==============-==============");
  	/* go through status hash, dereference package hash and finally strings */
- 	for (i=0; i<STATUS_HASH_PRIME+1; i++) {
+ 	for (i = 0; i < STATUS_HASH_PRIME+1; i++) {
  		if (status_hashtable[i]) {
  			const char *stat_str;  /* status string */
  			const char *name_str;  /* package name */
-Line 1287 
 static void list_packages(void)
+Line 1315 
 static void list_packages(void)
  			name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
  			vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
+ 			if (pattern && fnmatch(pattern, name_str, 0))
+ 				continue;
  			/* get abbreviation for status field 1 */
  			s1 = stat_str[0] == 'i' ? 'i' : 'r';
  			/* get abbreviation for status field 2 */
- 			for (j=0, spccnt=0; stat_str[j] && spccnt<2; j++) {
+ 			for (j = 0, spccnt = 0; stat_str[j] && spccnt < 2; j++) {
  				if (stat_str[j] == ' ') spccnt++;
  			}
  			s2 = stat_str[j];
-Line 1299 
 static void list_packages(void)
+Line 1330 
 static void list_packages(void)
  			/* print out the line formatted like Debian dpkg */
  			printf("%c%c  %-14s %s\n", s1, s2, name_str, vers_str);
  		}
-     }
+ 	}
  }
  static void remove_package(const unsigned package_num, int noisy)
-Line 1312 
 static void remove_package(const unsigne
+Line 1343 
 static void remove_package(const unsigne
  	char **exclude_files;
  	char list_name[package_name_length + 25];
  	char conffile_name[package_name_length + 30];
- 	int return_value;
  	if (noisy)
  		printf("Removing %s (%s)...\n", package_name, package_version);
- 	/* run prerm script */
+ 	/* Run prerm script */
- 	return_value = run_package_script(package_name, "prerm");
+ 	run_package_script_or_die(package_name, "prerm");
- 	if (return_value == -1) {
- 		bb_error_msg_and_die("script failed, prerm failure");
- 	}
  	/* Create a list of files to remove, and a separate list of those to keep */
- 	sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
+ 	sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
  	remove_files = create_list(list_name);
- 	sprintf(conffile_name, "/var/lib/dpkg/info/%s.conffiles", package_name);
+ 	sprintf(conffile_name, "/var/lib/dpkg/info/%s.%s", package_name, "conffiles");
  	exclude_files = create_list(conffile_name);
  	/* Some directories can't be removed straight away, so do multiple passes */
- 	while (remove_file_array(remove_files, exclude_files)) /*repeat */;
+ 	while (remove_file_array(remove_files, exclude_files))
+ 		continue;
  	free_array(exclude_files);
  	free_array(remove_files);
  	/* Create a list of files in /var/lib/dpkg/info/<package>.* to keep  */
  	exclude_files = xzalloc(sizeof(char*) * 3);
  	exclude_files[0] = xstrdup(conffile_name);
- 	exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.postrm", package_name);
+ 	exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm");
  	/* Create a list of all /var/lib/dpkg/info/<package> files */
  	remove_files = all_control_list(package_name);
-Line 1347 
 static void remove_package(const unsigne
+Line 1375 
 static void remove_package(const unsigne
  	free_array(remove_files);
  	free_array(exclude_files);
- 	/* rename <package>.conffile to <package>.list */
+ 	/* rename <package>.conffiles to <package>.list
+ 	 * The conffiles control file isn't required in Debian packages, so don't
+ 	 * error out if it's missing.  */
  	rename(conffile_name, list_name);
  	/* Change package status */
-Line 1365 
 static void purge_package(const unsigned
+Line 1395 
 static void purge_package(const unsigned
  	printf("Purging %s (%s)...\n", package_name, package_version);
- 	/* run prerm script */
+ 	/* Run prerm script */
- 	if (run_package_script(package_name, "prerm") != 0) {
+ 	run_package_script_or_die(package_name, "prerm");
- 		bb_error_msg_and_die("script failed, prerm failure");
- 	}
  	/* Create a list of files to remove */
- 	sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
+ 	sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
  	remove_files = create_list(list_name);
  	exclude_files = xzalloc(sizeof(char*));
-Line 1386 
 static void purge_package(const unsigned
+Line 1414 
 static void purge_package(const unsigned
  	free_array(remove_files);
  	free(exclude_files);
- 	/* run postrm script */
+ 	/* Run postrm script */
- 	if (run_package_script(package_name, "postrm") == -1) {
+ 	run_package_script_or_die(package_name, "postrm");
- 		bb_error_msg_and_die("postrm fialure.. set status to what?");
- 	}
  	/* Change package status */
  	set_status(status_num, "not-installed", 3);
-Line 1416 
 static void init_archive_deb_control(arc
+Line 1442 
 static void init_archive_deb_control(arc
  	tar_handle->src_fd = ar_handle->src_fd;
  	/* We don't care about data.tar.* or debian-binary, just control.tar.* */
- #ifdef CONFIG_FEATURE_DEB_TAR_GZ
+ #if ENABLE_FEATURE_SEAMLESS_GZ
- 	llist_add_to(&(ar_handle->accept), "control.tar.gz");
+ 	llist_add_to(&(ar_handle->accept), (char*)"control.tar.gz");
  #endif
- #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
+ #if ENABLE_FEATURE_SEAMLESS_BZ2
- 	llist_add_to(&(ar_handle->accept), "control.tar.bz2");
+ 	llist_add_to(&(ar_handle->accept), (char*)"control.tar.bz2");
  #endif
  	/* Assign the tar handle as a subarchive of the ar handle */
  	ar_handle->sub_archive = tar_handle;
- 	return;
  }
  static void init_archive_deb_data(archive_handle_t *ar_handle)
-Line 1438 
 static void init_archive_deb_data(archiv
+Line 1462 
 static void init_archive_deb_data(archiv
  	tar_handle->src_fd = ar_handle->src_fd;
  	/* We don't care about control.tar.* or debian-binary, just data.tar.* */
- #ifdef CONFIG_FEATURE_DEB_TAR_GZ
+ #if ENABLE_FEATURE_SEAMLESS_GZ
- 	llist_add_to(&(ar_handle->accept), "data.tar.gz");
+ 	llist_add_to(&(ar_handle->accept), (char*)"data.tar.gz");
  #endif
- #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
+ #if ENABLE_FEATURE_SEAMLESS_BZ2
- 	llist_add_to(&(ar_handle->accept), "data.tar.bz2");
+ 	llist_add_to(&(ar_handle->accept), (char*)"data.tar.bz2");
  #endif
  	/* Assign the tar handle as a subarchive of the ar handle */
  	ar_handle->sub_archive = tar_handle;
- 	return;
  }
  static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
-Line 1463 
 static char *deb_extract_control_file_to
+Line 1485 
 static char *deb_extract_control_file_to
  	return ar_handle->sub_archive->buffer;
  }
- static void data_extract_all_prefix(archive_handle_t *archive_handle)
+ static void FAST_FUNC data_extract_all_prefix(archive_handle_t *archive_handle)
  {
  	char *name_ptr = archive_handle->file_header->name;
-Line 1472 
 static void data_extract_all_prefix(arch
+Line 1494 
 static void data_extract_all_prefix(arch
  		archive_handle->file_header->name = xasprintf("%s%s", archive_handle->buffer, name_ptr);
  		data_extract_all(archive_handle);
  	}
- 	return;
  }
  static void unpack_package(deb_file_t *deb_file)
-Line 1484 
 static void unpack_package(deb_file_t *d
+Line 1505 
 static void unpack_package(deb_file_t *d
  	char *list_filename;
  	archive_handle_t *archive_handle;
  	FILE *out_stream;
- 	llist_t *accept_list = NULL;
+ 	llist_t *accept_list;
- 	int i = 0;
+ 	int i;
  	/* If existing version, remove it first */
  	if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
-Line 1499 
 static void unpack_package(deb_file_t *d
+Line 1520 
 static void unpack_package(deb_file_t *d
  	}
  	/* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
- 	info_prefix = xasprintf("/var/lib/dpkg/info/%s.", package_name);
+ 	info_prefix = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "");
  	archive_handle = init_archive_deb_ar(deb_file->filename);
  	init_archive_deb_control(archive_handle);
- 	while (all_control_files[i]) {
+ 	accept_list = NULL;
+ 	i = 0;
+ 	while (i < ARRAY_SIZE(all_control_files)) {
  		char *c = xasprintf("./%s", all_control_files[i]);
  		llist_add_to(&accept_list, c);
  		i++;
-Line 1512 
 static void unpack_package(deb_file_t *d
+Line 1535 
 static void unpack_package(deb_file_t *d
  	archive_handle->sub_archive->filter = filter_accept_list;
  	archive_handle->sub_archive->action_data = data_extract_all_prefix;
  	archive_handle->sub_archive->buffer = info_prefix;
- 	archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
+ 	archive_handle->sub_archive->ah_flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
  	unpack_ar_archive(archive_handle);
  	/* Run the preinst prior to extracting */
- 	if (run_package_script(package_name, "preinst") != 0) {
+ 	run_package_script_or_die(package_name, "preinst");
- 		/* when preinst returns exit code != 0 then quit installation process */
- 		bb_error_msg_and_die("subprocess pre-installation script returned error");
- 	}
  	/* Extract data.tar.gz to the root directory */
  	archive_handle = init_archive_deb_ar(deb_file->filename);
  	init_archive_deb_data(archive_handle);
  	archive_handle->sub_archive->action_data = data_extract_all_prefix;
- 	archive_handle->sub_archive->buffer = "/";
+ 	archive_handle->sub_archive->buffer = (char*)"/"; /* huh? */
- 	archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
+ 	archive_handle->sub_archive->ah_flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
  	unpack_ar_archive(archive_handle);
  	/* Create the list file */
- 	list_filename = xasprintf("/var/lib/dpkg/info/%s.list", package_name);
+ 	list_filename = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "list");
- 	out_stream = xfopen(list_filename, "w");
+ 	out_stream = xfopen_for_write(list_filename);
  	while (archive_handle->sub_archive->passed) {
  		/* the leading . has been stripped by data_extract_all_prefix already */
  		fputs(archive_handle->sub_archive->passed->data, out_stream);
-Line 1557 
 static void configure_package(deb_file_t
+Line 1577 
 static void configure_package(deb_file_t
  	printf("Setting up %s (%s)...\n", package_name, package_version);
  	/* Run the postinst script */
- 	if (run_package_script(package_name, "postinst") != 0) {
+ 	/* TODO: handle failure gracefully */
- 		/* TODO: handle failure gracefully */
+ 	run_package_script_or_die(package_name, "postinst");
- 		bb_error_msg_and_die("postrm failure.. set status to what?");
- 	}
  	/* Change status to reflect success */
  	set_status(status_num, "install", 1);
  	set_status(status_num, "installed", 3);
  }
- int dpkg_main(int argc, char **argv)
+ int dpkg_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+ int dpkg_main(int argc UNUSED_PARAM, char **argv)
  {
  	deb_file_t **deb_file = NULL;
  	status_node_t *status_node;
-Line 1585 
 int dpkg_main(int argc, char **argv)
+Line 1605 
 int dpkg_main(int argc, char **argv)
  		OPT_purge = 0x10,
  		OPT_remove = 0x20,
  		OPT_unpack = 0x40,
- 		REQ_package_name = 0x8000,
- 		REQ_filename = 0x4000,
  	};
- 	opt = getopt32(argc, argv, "CF:ilPru", &str_f);
+ 	INIT_G();
- 	if (opt & OPT_configure) opt |= REQ_package_name; // -C
+ 	opt = getopt32(argv, "CF:ilPru", &str_f);
+ 	//if (opt & OPT_configure) ... // -C
  	if (opt & OPT_force_ignore_depends) { // -F (--force in official dpkg)
  		if (strcmp(str_f, "depends"))
  			opt &= ~OPT_force_ignore_depends;
  	}
- 	if (opt & OPT_install) opt |= REQ_filename; // -i
+ 	//if (opt & OPT_install) ... // -i
  	//if (opt & OPT_list_installed) ... // -l
- 	if (opt & OPT_purge) opt |= REQ_package_name; // -P
+ 	//if (opt & OPT_purge) ... // -P
- 	if (opt & OPT_remove) opt |= REQ_package_name; // -r
+ 	//if (opt & OPT_remove) ... // -r
- 	if (opt & OPT_unpack) opt |= REQ_filename; // -u (--unpack in official dpkg)
+ 	//if (opt & OPT_unpack) ... // -u (--unpack in official dpkg)
- 	argc -= optind;
  	argv += optind;
  	/* check for non-option argument if expected  */
- 	if (!opt || (!argc && !(opt && OPT_list_installed)))
+ 	if (!opt || (!argv[0] && !(opt && OPT_list_installed)))
  		bb_show_usage();
- 	name_hashtable = xzalloc(sizeof(name_hashtable[0]) * (NAME_HASH_PRIME + 1));
- 	package_hashtable = xzalloc(sizeof(package_hashtable[0]) * (PACKAGE_HASH_PRIME + 1));
- 	status_hashtable = xzalloc(sizeof(status_hashtable[0]) * (STATUS_HASH_PRIME + 1));
  /*	puts("(Reading database ... xxxxx files and directories installed.)"); */
  	index_status_file("/var/lib/dpkg/status");
  	/* if the list action was given print the installed packages and exit */
  	if (opt & OPT_list_installed) {
- 		list_packages();
+ 		list_packages(argv[0]);
  		return EXIT_SUCCESS;
  	}
  	/* Read arguments and store relevant info in structs */
  	while (*argv) {
  		/* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
- 		deb_file = xrealloc(deb_file, sizeof(deb_file_t *) * (deb_count + 2));
+ 		deb_file = xrealloc_vector(deb_file, 2, deb_count);
- 		deb_file[deb_count] = xzalloc(sizeof(deb_file_t));
+ 		deb_file[deb_count] = xzalloc(sizeof(deb_file[0][0]));
- 		if (opt & REQ_filename) {
+ 		if (opt & (OPT_install | OPT_unpack)) {
+ 			/* -i/-u: require filename */
  			archive_handle_t *archive_handle;
  			llist_t *control_list = NULL;
  			/* Extract the control file */
- 			llist_add_to(&control_list, "./control");
+ 			llist_add_to(&control_list, (char*)"./control");
  			archive_handle = init_archive_deb_ar(argv[0]);
  			init_archive_deb_control(archive_handle);
  			deb_file[deb_count]->control_file = deb_extract_control_file_to_buffer(archive_handle, control_list);
-Line 1647 
 int dpkg_main(int argc, char **argv)
+Line 1663 
 int dpkg_main(int argc, char **argv)
  			deb_file[deb_count]->package = (unsigned) package_num;
  			/* Add the package to the status hashtable */
- 			if (opt & (OPT_unpack|OPT_install)) {
+ 			if (opt & (OPT_unpack | OPT_install)) {
  				/* Try and find a currently installed version of this package */
  				status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
  				/* If no previous entry was found initialise a new entry */
-Line 1665 
 int dpkg_main(int argc, char **argv)
+Line 1681 
 int dpkg_main(int argc, char **argv)
  					set_status(status_num, "reinstreq", 2);
  				}
  			}
- 		}
+ 		} else if (opt & (OPT_configure | OPT_purge | OPT_remove)) {
- 		else if (opt & REQ_package_name) {
+ 			/* -C/-p/-r: require package name */
  			deb_file[deb_count]->package = search_package_hashtable(
  					search_name_hashtable(argv[0]),
  					search_name_hashtable("ANY"), VER_ANY);
-Line 1685 
 int dpkg_main(int argc, char **argv)
+Line 1701 
 int dpkg_main(int argc, char **argv)
  					bb_error_msg_and_die("%s is already removed", name_hashtable[package_hashtable[package_num]->name]);
  				}
  				set_status(status_num, "deinstall", 1);
- 			}
+ 			} else if (opt & OPT_purge) {
- 			else if (opt & OPT_purge) {
  				/* if package status is "conf-files" then its ok */
  				if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
  					bb_error_msg_and_die("%s is already purged", name_hashtable[package_hashtable[package_num]->name]);
-Line 1697 
 int dpkg_main(int argc, char **argv)
+Line 1712 
 int dpkg_main(int argc, char **argv)
  		deb_count++;
  		argv++;
  	}
+ 	if (!deb_count)
+ 		bb_error_msg_and_die("no package files specified");
  	deb_file[deb_count] = NULL;
  	/* Check that the deb file arguments are installable */
  	if (!(opt & OPT_force_ignore_depends)) {
- 		if (!check_deps(deb_file, 0, deb_count)) {
+ 		if (!check_deps(deb_file, 0 /*, deb_count*/)) {
  			bb_error_msg_and_die("dependency check failed");
  		}
  	}
-Line 1748 
 int dpkg_main(int argc, char **argv)
+Line 1765 
 int dpkg_main(int argc, char **argv)
  		}
  		for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
- 			if (package_hashtable[i] != NULL) {
+ 			free_package(package_hashtable[i]);
- 				free_package(package_hashtable[i]);
- 			}
  		}
  		for (i = 0; i < STATUS_HASH_PRIME; i++) {

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Added in v.816
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Removed from v.815
 


changed lines


 
Added in v.816
-Removed from v.815
+Added in v.816