main.c revision 179760 
1/*-
2 * ----------------------------------------------------------------------------
3 * "THE BEER-WARE LICENSE" (Revision 42):
4 * <beat@chruetertee.ch> wrote this file. As long as you retain this notice you
5 * can do whatever you want with this stuff. If we meet some day, and you think
6 * this stuff is worth it, you can buy me a beer in return.          Beat G�tzi
7 * ----------------------------------------------------------------------------
8 */
9
10#include <sys/cdefs.h>
11__FBSDID("$FreeBSD: head/usr.sbin/pkg_install/updating/main.c 179760 2008-06-12 15:21:13Z flz $");
12
13#include <errno.h>
14#include <limits.h>
15#include <sysexits.h>
16#include <getopt.h>
17
18#include "lib.h"
19#include "pathnames.h"
20
21typedef struct installedport {
22	struct installedport *next;				/* List of installed ports. */
23	char name[LINE_MAX];					/* Name of the installed port. */
24} INSTALLEDPORT;
25
26int usage(void);
27
28static char opts[] = "d:f:h";
29static struct option longopts[] = {
30	{ "date",	required_argument,	NULL,		'd' },
31	{ "file",	required_argument,	NULL,		'f' },
32	{ "help",	no_argument,		NULL,		'h' },
33	{ NULL,		0,			NULL,		0 },
34};
35
36/*
37 * Parse /usr/port/UPDATING for corresponding entries. If no argument is
38 * passed to pkg_updating all entries for all installed ports are displayed.
39 * If a list of portnames is passed to pkg_updating only entries for the
40 * given portnames are displayed. Use the -d option to define that only newer
41 * entries as this date are shown.
42 */
43int
44main(int argc, char *argv[])
45{
46	/* Keyword for searching portname in UPDATING. */
47	const char *affects = "AFFECTS";
48	/* Indicate a date -> end of a entry. Will fail on 2100-01-01... */
49	const char *end = "20";
50	/* Keyword for searching origin portname of installed port. */
51	const char *origin = "@comment ORIGIN:";
52	const char *pkgdbpath = LOG_DIR;		/* Location of pkgdb */
53	const char *updatingfile = UPDATING;	/* Location of UPDATING */
54
55	char *date = NULL; 						/* Passed -d argument */
56	char *dateline = NULL;					/* Saved date of an entry */
57	/* Tmp lines for parsing file */
58	char *tmpline1 = NULL;
59	char *tmpline2 = NULL;
60
61	char originline[LINE_MAX];				/* Line of +CONTENTS */
62	/* Temporary variable to create path to +CONTENTS for installed ports. */
63	char tmp_file[MAXPATHLEN];
64	char updatingline[LINE_MAX];			/* Line of UPDATING */
65
66	int ch;									/* Char used by getopt */
67	int found = 0;							/* Found an entry */
68	int linelength;							/* Length of parsed line */
69	int maxcharperline = LINE_MAX;			/* Max chars per line */
70	int dflag = 0;							/* -d option set */
71	/* If pflag = 0 UPDATING will be checked for all installed ports. */
72	int pflag = 0;
73
74	size_t n;								/* Offset to create path */
75
76	struct dirent *pkgdbdir;				/* pkgdb directory */
77	struct stat attribute;					/* attribute of pkgdb element */
78
79	/* Needed nodes for linked list with installed ports. */
80	INSTALLEDPORT *head = (INSTALLEDPORT *) NULL;
81	INSTALLEDPORT *curr = (INSTALLEDPORT *) NULL;
82
83	DIR *dir;
84	FILE *fd;
85
86	while ((ch = getopt_long(argc, argv, opts, longopts, NULL)) != -1) {
87		switch (ch) {
88			case 'd':
89				dflag = 1;
90				date = optarg;
91				break;
92			case 'f':
93				updatingfile = optarg;
94				break;
95			case 'h':
96			default:
97				usage();
98		}
99	}
100	argc -= optind;
101	argv += optind;
102
103	/* Check if passed date has a correct format. */
104	if (dflag == 1) {
105		linelength = strlen(date);
106		if (linelength != 8)
107			exit(EX_DATAERR);
108		if (strspn(date, "0123456789") != 8) {
109			fprintf(stderr, "unknown date format: %s\n", date);
110			exit(EX_DATAERR);
111		}
112	}
113
114	/* Save the list of passed portnames. */
115	if (argc != 0) {
116		pflag = 1;
117		while (*argv) {
118			if((curr = (INSTALLEDPORT *)
119				malloc(sizeof(INSTALLEDPORT))) == NULL)
120				(void)exit(EXIT_FAILURE);
121			strlcpy (curr->name, *argv, strlen(*argv) + 1);
122			curr->next = head;
123			head = curr;
124			(void)*argv++;
125		}
126	}
127
128	/*
129	 * UPDATING will be parsed for all installed ports
130	 * if no portname is passed.
131	 */
132	if (pflag == 0) {
133		/* Open /var/db/pkg and search for all installed ports. */
134		if((dir = opendir(pkgdbpath)) != NULL) {
135			while ((pkgdbdir = readdir(dir)) != NULL) {
136				if (strcmp(pkgdbdir->d_name, ".") != 0 &&
137					strcmp(pkgdbdir->d_name, "..") !=0) {
138
139					/* Create path to +CONTENTS file for each installed port */
140					n = strlcpy(tmp_file, pkgdbpath, strlen(pkgdbpath)+1);
141					n = strlcpy(tmp_file + n, "/", sizeof(tmp_file) - n);
142					n = strlcat(tmp_file + n, pkgdbdir->d_name,
143						sizeof(tmp_file) - n);
144					if(stat(tmp_file, &attribute) == -1) {
145						fprintf(stderr, "can't open %s: %s\n",
146							tmp_file, strerror(errno));
147						return EXIT_FAILURE;
148					}
149					if(attribute.st_mode & S_IFREG)
150						continue;
151					(void)strlcat(tmp_file + n, "/",
152						sizeof(tmp_file) - n);
153					(void)strlcat(tmp_file + n, CONTENTS_FNAME,
154						sizeof(tmp_file) - n);
155
156					/* Open +CONTENT file */
157					fd = fopen(tmp_file, "r");
158					if(fd == NULL) {
159						fprintf(stderr, "warning: can't open %s: %s\n",
160						tmp_file, strerror(errno));
161						continue;
162					}
163
164					/*
165					 * Parses +CONTENT for ORIGIN line and
166					 * put element into linked list.
167					 */
168					while(fgets(originline, maxcharperline, fd) != NULL) {
169						tmpline1 = strstr(originline, origin);
170						if( tmpline1 != NULL ) {
171							/* Tmp variable to store port name. */
172							char *pname;
173							pname = strrchr(originline, (int)':');
174							pname++;
175							if((curr = (INSTALLEDPORT *)
176								malloc(sizeof(INSTALLEDPORT))) == NULL)
177								(void)exit(EXIT_FAILURE);
178							if (pname[strlen(pname) - 1] == '\n')
179								pname[strlen(pname) - 1] = '\0';
180							strlcpy (curr->name, pname, strlen(pname)+1);
181							curr->next = head;
182							head = curr;
183						}
184					}
185
186					if(ferror(fd)) {
187						fprintf(stderr, "error reading input\n");
188						exit(EX_IOERR);
189					}
190
191					(void)fclose(fd);
192				}
193			}
194			closedir(dir);
195		}
196	}
197
198	/* Open UPDATING file */
199	fd = fopen(updatingfile, "r");
200	if(fd == NULL) {
201		fprintf(stderr, "can't open %s: %s\n",
202		updatingfile, strerror(errno));
203		exit(EX_UNAVAILABLE);
204	}
205
206	/* Parse opened UPDATING file. */
207	while(fgets(updatingline, maxcharperline, fd) != NULL) {
208		/* No entry is found so far */
209		if (found == 0) {
210			/* Search for AFFECTS line to parse the portname. */
211			tmpline1 = strstr(updatingline, affects);
212
213			if( tmpline1 != NULL ) {
214				curr = head;
215				while(curr != NULL) {
216					tmpline2 = strstr(updatingline, curr->name);
217					if( tmpline2 != NULL )
218						break;
219					curr = curr->next;
220				}
221				if( tmpline2 != NULL ) {
222					/* If -d is set, check if entry is newer than the date. */
223					if ( (dflag == 1) && (strncmp(dateline, date, 8) < 0))
224						continue;
225					printf("%s", dateline);
226					printf("%s", updatingline);
227					found = 1;
228				}
229			}
230		}
231		/* Search for the end of an entry, if not found print the line. */
232		else {
233			tmpline1 = strstr(updatingline, end);
234			if( tmpline1 == NULL )
235				printf("%s", updatingline);
236			else {
237				linelength = strlen(updatingline);
238				if (linelength == 10)
239					found = 0;
240				else
241					printf("%s", updatingline);
242			}
243		}
244		/* Save the actual line, it could be a date. */
245		dateline = strdup(updatingline);
246	}
247
248	if(ferror(fd)) {
249		fprintf(stderr, "error reading input\n");
250		exit(EX_IOERR);
251	}
252	(void)fclose(fd);
253
254	exit(EX_OK);
255}
256
257int
258usage(void)
259{
260	fprintf(stderr,
261		"usage: pkg_updating [-h] [-d YYYYMMDD] [-f file] [portname ...]\n");
262	exit(EX_USAGE);
263}
264
265void
266cleanup(int sig)
267{
268	if (sig)
269		exit(1);
270}
271