/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2020, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire 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
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
- * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
- * related information and legal notices. It is expected that any future
- * projects/authors will amend these files as needed.
+ * See files README, COPYING and CREDITS in the root of the source
+ * tree for related information and legal notices. It is expected
+ * that future projects/authors will amend these files as needed.
*
* ---
*
* info.c: display an info page
- *
+ *
* Known contributors to this file:
* Dave Pare, 1986
* Mike Wise, 1997 - added apropos and case insensitivity
* Doug Hay, 1998
* Steve McClure, 1998-2000
+ * Ron Koenderink, 2004
*/
-#include "misc.h"
-#include "player.h"
+#include <config.h>
+
+#include <ctype.h>
#include <errno.h>
-#include <string.h>
-#include <stdio.h>
#include <sys/stat.h>
+#include <stdio.h>
#if !defined(_WIN32)
+#include <strings.h>
#include <dirent.h>
-#else
-#include <windows.h>
-#endif
-#ifdef solaris
-#include <unistd.h>
#endif
#include "commands.h"
#include "optlist.h"
-#if 0
-static int fileselect(struct dirent *dp);
-static int printdir(void);
-#endif
-
-static s_char *
-lowerit(s_char *buf, int n, s_char *orig)
+static char *
+lowerit(char *buf, int n, char *orig)
{ /* converts a string to lower case */
/* lower case output buffer */
/* size of output buffer */
/* input strig */
int i;
- s_char *tmp;
- tmp = buf;
- memset(buf, 0, n);
- for (i = 0; i < n && *orig; i++) {
- *tmp++ = tolower(*orig++);
- }
+ for (i = 0; i < n - 1 && orig[i]; i++)
+ buf[i] = tolower(orig[i]);
+ buf[i] = 0;
return buf;
}
-static int
-strnccmp(s_char *s1, s_char *s2, int n)
-{
- int i;
- char c1, c2;
- for (i = 0; i < n && *s1 && s2; i++) {
- c1 = tolower(*s1++);
- c2 = tolower(*s2++);
- if (c1 > c2)
- return 1;
- else if (c1 < c2)
- return -1;
- }
- return 0;
-}
-
#if !defined(_WIN32)
int
info(void)
{
- s_char buf[255];
+ char buf[255];
FILE *fp;
- s_char *bp;
+ char *name;
+ char *tmp_name;
struct stat statb;
struct dirent *dp;
- s_char filename[1024];
+ char filename[1024];
+ char last[256];
DIR *info_dp;
+ int nmatch = 0;
+ int width = 0;
+ char sep;
- if (player->argp[1] == 0 || !*player->argp[1])
- bp = "TOP";
-#if 0
- /* Note that we generate an "all" file now, which contains
- * this list, so we don't do printdir. */
- else if (!strcmp(player->argp[1], "all"))
- return printdir();
-#endif
- /*
- * don't let sneaky people go outside the info directory
- */
- else if (NULL != (bp = strrchr(player->argp[1], '/')))
- bp++;
- else
- bp = player->argp[1];
- sprintf(filename, "%s/%s", infodir, bp);
+ name = player->argp[1];
+ if (name) {
+ /*
+ * don't let sneaky people go outside the info directory
+ */
+ if (NULL != (tmp_name = strrchr(name, '/')))
+ name = tmp_name + 1;
+ }
+ if (!name || !*name)
+ name = "TOP";
+
+ snprintf(filename, sizeof(filename), "%s/%s", infodir, name);
fp = fopen(filename, "r");
if (fp == NULL) {
- int len = strlen(bp);
- /* may be a "partial" request. */
+ /* may be a "partial" request. */
info_dp = opendir(infodir);
- if (info_dp == 0) {
- pr("Can't open info dir \"%s\"\n", infodir);
- return RET_SYS;
+ if (!info_dp) {
+ pr("Can't open info dir\n");
+ logerror("Can't open info dir \"%s\"\n", infodir);
+ return RET_FAIL;
}
- rewinddir(info_dp);
- while ((dp = readdir(info_dp)) != 0 && fp == 0) {
- if (strnccmp(bp, dp->d_name, len) != 0)
+
+ while ((dp = readdir(info_dp))) {
+ if (strncasecmp(name, dp->d_name, strlen(name)) != 0)
continue;
- sprintf(filename, "%s/%s", infodir, dp->d_name);
- fp = fopen(filename, "r");
+ nmatch++;
+ if (nmatch == 1) {
+ snprintf(last, sizeof(last), "%s", dp->d_name);
+ } else {
+ if (nmatch == 2) {
+ pr("`%s' is ambiguous. The following topics match:\n%s",
+ name, last);
+ width = strlen(last);
+ }
+ width += 2 + strlen(dp->d_name);
+ sep = ' ';
+ if (width > 75) {
+ sep = '\n';
+ width = strlen(dp->d_name);
+ }
+ pr(",%c%s", sep, dp->d_name);
+ }
}
closedir(info_dp);
+ if (nmatch == 0) {
+ pr("Sorry, there is no info on %s\n", name);
+ return RET_FAIL;
+ } else if (nmatch > 1) {
+ pr(".\n");
+ return RET_FAIL;
+ }
+ snprintf(filename, sizeof(filename), "%s/%s", infodir, last);
+ fp = fopen(filename, "r");
if (fp == NULL) {
- pr("Sorry, there is no info on %s\n", bp);
+ pr("Error reading info file for %s\n", name);
+ logerror("Cannot open for \"%s\" info file (%s)",
+ filename, strerror(errno));
return RET_FAIL;
}
}
if (fstat(fileno(fp), &statb) < 0) {
- pr("Cannot read info page for \"%s\" (%s)\n",
- dp->d_name, strerror(errno));
+ pr("Error reading info file for %s\n", name);
+ logerror("Cannot fstat for \"%s\" info file (%s)",
+ filename, strerror(errno));
fclose(fp);
- return RET_SYS;
+ return RET_FAIL;
}
- if ((statb.st_mode & S_IFREG) == 0) {
- pr("There is no available information on \"%s\"\n", dp->d_name);
+ if (!S_ISREG(statb.st_mode)) {
+ pr("Error reading info file for %s\n", name);
+ logerror("The info file \"%s\" is not regular file\n", filename);
fclose(fp);
return RET_FAIL;
}
- pr("Information on: %s Last modification date: %s",
- bp, ctime(&statb.st_mtime));
- while (fgets(buf, sizeof(buf), fp) != 0)
+
+ while (fgets(buf, sizeof(buf), fp))
pr("%s", buf);
(void)fclose(fp);
return RET_OK;
}
-#if 0
-static int biggest;
-
-static int
-fileselect(struct dirent *dp)
-{
- int l;
- if (*dp->d_name == '.')
- return 0;
-
- if ((l = strlen(dp->d_name)) > biggest)
- biggest = l;
- return 1;
-}
-
-#ifdef solaris
-static int
-alphasort(struct dirent *d1, struct dirent *d2)
-{
- return strcmp(d1->d_name, d2->d_name);
-}
-
-static int
-scandir(char *dir, struct dirent ***dpp, int (*select) (), int (*sort) ())
- /* directory to read */
- /* directory entry pointer pointer */
-{
- DIR *dirp;
- int nsize;
- int nents;
- struct dirent *d, *tmp;
-
- d = (struct dirent *)malloc(sizeof(struct dirent) +
- pathconf(".", _PC_NAME_MAX) + 1);
- if ((dirp = opendir(dir)) == NULL)
- return -1;
- nsize = 100;
- *dpp = (struct dirent **)malloc(nsize * sizeof(struct dirent *));
- if ((*dpp) == NULL) {
- closedir(dirp);
- return -1;
- }
- nents = 0;
- while ((d = readdir_r(dirp, d)) != NULL) {
- if (select != NULL && !(*select) (d))
- continue;
- tmp =
- (struct dirent *)malloc(sizeof(struct dirent) +
- strlen(d->d_name) + 1);
- if (tmp == NULL)
- return -1;
- tmp->d_ino = d->d_ino;
- tmp->d_reclen = d->d_reclen;
- strcpy(tmp->d_name, d->d_name);
- if (nents > nsize) {
- *dpp =
- (struct dirent **)realloc((char *)*dpp,
- nsize * sizeof(struct dirent *));
- if (*dpp == NULL)
- return -1;
- }
- (*dpp)[nents++] = tmp;
- }
- closedir(dirp);
- if (nents > 0 && sort != NULL)
- qsort(*dpp, nents, sizeof(struct dirent *), sort);
- return nents;
-}
-#endif
-
-static int
-printdir(void)
-{
-#if !defined(solaris) && !defined(ALPHA) && !defined(__linux__)
- extern int alphasort(const struct dirent *const *,
- const struct dirent *const *);
-#endif
- static time_t lastmodtime;
- static int number;
- static struct dirent **dp;
- struct stat st;
- int count;
- int i;
- int npl;
-
- if (stat(infodir, &st) == -1)
- return RET_FAIL;
- pr("Available topics are:\n");
- if (lastmodtime < st.st_mtime) {
- if (dp)
- free((s_char *)dp);
- biggest = 0;
- number = scandir(infodir, &dp, fileselect, alphasort);
- lastmodtime = st.st_mtime;
- }
- count = 79 / (biggest + 1) - 1;
- for (i = 0, npl = 0; i < number; i++) {
- pr("%-*.*s%c", biggest, strlen(dp[i]->d_name),
- dp[i]->d_name, npl == count ? '\n' : ' ');
- if (npl == count)
- npl = 0;
- else
- npl++;
- }
- if (npl != 0)
- pr("\n");
- return 0;
-}
-#endif
-
int
apro(void)
{
FILE *fp;
- s_char *bp, *lbp;
- s_char *fbuf;
- s_char *lbuf;
+ char *name, *lbp;
+ char *fbuf;
+ char *lbuf;
struct dirent *dp;
- s_char filename[1024];
+ char filename[1024];
DIR *info_dp;
long nf, nhf, nl, nlhl, nhl, nll;
int alreadyhit;
int lhitlim;
+ struct stat statb;
- if (player->argp[1] == 0 || !*player->argp[1]) {
+ if (!player->argp[1] || !*player->argp[1]) {
pr("Apropos what?\n");
return RET_FAIL;
}
}
info_dp = opendir(infodir);
- if (info_dp == 0) {
- pr("Can't open info dir \"%s\"\n", infodir);
- return RET_SYS;
+ if (info_dp == NULL) {
+ pr("Can't open info dir\n");
+ logerror("Can't open info dir \"%s\"", infodir);
+ return RET_FAIL;
}
- fbuf = (s_char *)malloc(256);
- lbuf = (s_char *)malloc(256);
- lbp = (s_char *)malloc(256);
+ fbuf = malloc(256);
+ lbuf = malloc(256);
+ lbp = malloc(256);
/*
* lower case search string into lbp
*/
- bp = player->argp[1];
- lowerit(lbp, 256, bp);
+ name = player->argp[1];
+ lowerit(lbp, 256, name);
/*
* search
*/
nf = nhf = nl = nhl = 0;
- rewinddir(info_dp);
- while ((dp = readdir(info_dp)) != 0) {
- sprintf(filename, "%s/%s", infodir, dp->d_name);
+ while ((dp = readdir(info_dp))) {
+ if (dp->d_name[0] == '.')
+ continue;
+ snprintf(filename, sizeof(filename), "%s/%s", infodir, dp->d_name);
fp = fopen(filename, "r");
alreadyhit = 0;
nll = nlhl = 0;
if (fp != NULL) {
+ if (fstat(fileno(fp), &statb) < 0) {
+ logerror("Cannot stat for \"%s\" info file (%s)",
+ filename, strerror(errno));
+ fclose(fp);
+ continue;
+ }
+ if (!S_ISREG(statb.st_mode)) {
+ logerror("The info file \"%s\" is not regular file\n",
+ filename);
+ fclose(fp);
+ continue;
+ }
while (fgets(fbuf, 256, fp)) {
lowerit(lbuf, 256, fbuf);
if (strstr(lbuf, lbp)) {
free(lbp);
if ((nhl) > lhitlim) {
- pr("Limit of %ld lines exceeded\n", lhitlim);
+ pr("Limit of %d lines exceeded\n", lhitlim);
}
pr("Found %s in %ld of %ld files and in %ld of %ld lines\n",
- bp, nhf, nf, nhl, nl);
+ name, nhf, nf, nhl, nl);
return RET_OK;
}
-#else
+#else /* _WIN32 */
int
info(void)
{
- s_char buf[255];
+ char buf[255];
FILE *fp;
- s_char *bp;
- s_char *bp2;
- s_char filename[1024];
-
- if (player->argp[1] == 0 || !*player->argp[1])
- bp = "TOP";
-#if 0
- /* Note that we generate an "all" file now, which contains
- * this list, so we don't do printdir. */
- else if (!strcmp(player->argp[1], "all"))
- return printdir();
-#endif
- else {
+ char *name;
+ char *tmp_name;
+ char filename[1024];
+ char last[256];
+ int nmatch = 0;
+ int width = 0;
+ char sep;
+
+ name = player->argp[1];
+ if (name) {
/*
* don't let sneaky people go outside the info directory
*/
- bp = player->argp[1];
- if (NULL != (bp2 = strrchr(bp, '/')))
- bp = ++bp2;
- if (NULL != (bp2 = strrchr(bp, '\\')))
- bp = ++bp2;
- if (NULL != (bp2 = strrchr(bp, ':')))
- bp = ++bp2;
- if (!*bp)
- bp = "TOP";
+ if (NULL != (tmp_name = strrchr(name, '/')))
+ name = tmp_name + 1;
+ if (NULL != (tmp_name = strrchr(name, '\\')))
+ name = tmp_name + 1;
+ if (NULL != (tmp_name = strrchr(name, ':')))
+ name = tmp_name + 1;
}
+ if (!name || !*name)
+ name = "TOP";
- strncpy(filename, infodir, sizeof(filename) - 2);
- strcat(filename, "//");
- strncat(filename, bp, sizeof(filename) - 1 - strlen(filename));
- fp = fopen(filename, "r");
+ snprintf(filename, sizeof(filename) - 1, "%s\\%s", infodir, name);
+ fp = fopen(filename, "rb");
if (fp == NULL) {
- /* may be a "partial" request. */
+ /* may be a "partial" request. */
HANDLE hDir;
WIN32_FIND_DATA fData;
- int len = strlen(bp);
- strncat(filename, "*", sizeof(filename) - 1 - strlen(filename));
+ strcat(filename, "*");
hDir = FindFirstFile(filename, &fData);
if (hDir == INVALID_HANDLE_VALUE) {
- pr("Can't open info dir \"%s\"\n", infodir);
- return RET_SYS;
+ switch (GetLastError()) {
+ case ERROR_FILE_NOT_FOUND:
+ pr("Sorry, there is no info on %s\n", name);
+ break;
+ case ERROR_PATH_NOT_FOUND:
+ pr("Can't open info dir\n");
+ logerror("Can't open info dir \"%s\"", infodir);
+ break;
+ default:
+ pr("Error reading info dir\n");
+ logerror("Error (%lu) reading info dir(%s)\\file(%s)",
+ GetLastError(), infodir, filename);
+ }
+ return RET_FAIL;
}
do {
- if ((fData.dwFileAttributes == FILE_ATTRIBUTE_NORMAL) &&
- (strnccmp(bp, fData.cFileName, len) == 0)) {
- strncpy(filename, infodir, sizeof(filename) - 2);
- strcat(filename, "//");
- strncat(filename, fData.cFileName,
- sizeof(filename) - 1 - strlen(filename));
- fp = fopen(filename, "r");
+ if ((fData.dwFileAttributes != (DWORD)-1) &&
+ ((fData.dwFileAttributes == FILE_ATTRIBUTE_NORMAL) ||
+ (fData.dwFileAttributes == FILE_ATTRIBUTE_ARCHIVE) ||
+ (fData.dwFileAttributes == FILE_ATTRIBUTE_READONLY)) &&
+ (strncasecmp(name, fData.cFileName, strlen(name)) == 0)) {
+ nmatch++;
+ if (nmatch == 1) {
+ snprintf(last, sizeof(last), "%s", fData.cFileName);
+ } else {
+ if (nmatch == 2) {
+ pr("`%s' is ambiguous. The following topics match:\n%s",
+ name, last);
+ width = strlen(last);
+ }
+ width += 2 + strlen(fData.cFileName);
+ sep = ' ';
+ if (width > 75) {
+ sep = '\n';
+ width = strlen(fData.cFileName);
+ }
+ pr(",%c%s", sep, fData.cFileName);
+ }
}
- } while (!fp && FindNextFile(hDir, &fData));
+ } while (FindNextFile(hDir, &fData));
FindClose(hDir);
+ if (nmatch == 0) {
+ pr("Sorry, there is no info on %s\n", name);
+ return RET_FAIL;
+ } else if (nmatch > 1) {
+ pr(".\n");
+ return RET_FAIL;
+ }
+ snprintf(filename, sizeof(filename), "%s/%s", infodir, last);
+ fp = fopen(filename, "rb");
if (fp == NULL) {
- pr("Sorry, there is no info on %s\n", bp);
+ pr("Error reading info file for %s\n", name);
+ logerror("Cannot open for \"%s\" info file (%s)",
+ filename, strerror(errno));
+ return RET_FAIL;
+ }
+ } else {
+ DWORD fAttrib = GetFileAttributes(filename);
+ if ((fAttrib == (DWORD)-1) || /* INVALID_FILE_ATTRIBUTES */
+ ((fAttrib != FILE_ATTRIBUTE_NORMAL) &&
+ (fAttrib != FILE_ATTRIBUTE_ARCHIVE) &&
+ (fAttrib != FILE_ATTRIBUTE_READONLY))) {
+ pr("Error reading info file for %s\n", name);
+ logerror("The info file \"%s\" is not regular file\n",
+ filename);
+ fclose(fp);
return RET_FAIL;
}
}
- pr("Information on: %s", bp);
+
while (fgets(buf, sizeof(buf), fp) != 0)
pr("%s", buf);
(void)fclose(fp);
return RET_OK;
}
-#if 0
-static int
-printdir(void)
-{
- HANDLE hDir;
- WIN32_FIND_DATA fData;
- int count;
- int i;
- int npl;
- s_char filename[1024];
-
- strncpy(filename, infodir, sizeof(filename) - 3);
- strcat(filename, "//*");
-
- hDir = FindFirstFile(filename, &fData);
- if (hDir == INVALID_HANDLE_VALUE) {
- return RET_FAIL;
- }
-
- pr("Available topics are:\n");
- do {
- if (fData.dwFileAttributes == FILE_ATTRIBUTE_NORMAL) {
- /* Yes, we could do multi-column work here. */
- pr("%s\n", fData.cFileName);
- }
- } while (FindNextFile(hDir, &fData));
- FindClose(hDir);
-
- return 0;
-}
-#endif
-
int
apro(void)
{
HANDLE hDir;
WIN32_FIND_DATA fData;
FILE *fp;
- s_char *bp, *lbp;
- s_char *fbuf;
- s_char *lbuf;
- s_char filename[1024];
+ char *name, *lbp;
+ char *fbuf;
+ char *lbuf;
+ char filename[1024];
long nf, nhf, nl, nlhl, nhl, nll;
int alreadyhit;
int lhitlim;
lhitlim = 100;
}
- strncpy(filename, infodir, sizeof(filename) - 3);
- strcat(filename, "//*");
+ snprintf(filename, sizeof(filename), "%s\\*", infodir);
hDir = FindFirstFile(filename, &fData);
if (hDir == INVALID_HANDLE_VALUE) {
+ if (GetLastError() == ERROR_PATH_NOT_FOUND) {
+ pr("Can't open info dir\n");
+ logerror("Can't open info dir \"%s\"", infodir);
+ } else {
+ pr("Error reading info dir\n");
+ logerror("Error (%lu) reading info dir(%s)\\file(%s)",
+ GetLastError(), infodir, filename);
+ }
return RET_FAIL;
}
- fbuf = (s_char *)malloc(256);
- lbuf = (s_char *)malloc(256);
- lbp = (s_char *)malloc(256);
+ fbuf = malloc(256);
+ lbuf = malloc(256);
+ lbp = malloc(256);
/*
* lower case search string into lbp
*/
- bp = player->argp[1];
- lowerit(lbp, 256, bp);
+ name = player->argp[1];
+ lowerit(lbp, 256, name);
/*
* search
*/
nf = nhf = nl = nhl = 0;
do {
- strncpy(filename, infodir, sizeof(filename) - 3);
- strcat(filename, "//");
- strncat(filename, fData.cFileName,
- sizeof(filename) - 1 - strlen(filename));
- fp = fopen(filename, "r");
- alreadyhit = 0;
- nll = nlhl = 0;
- if (fp != NULL) {
- while (fgets(fbuf, 256, fp)) {
- lowerit(lbuf, 256, fbuf);
- if (strstr(lbuf, lbp)) {
- if (!alreadyhit) {
- pr("*** %s ***\n", fData.cFileName);
- alreadyhit = 1;
- nhf++;
+ if ((fData.dwFileAttributes != (DWORD)-1) &&
+ ((fData.dwFileAttributes == FILE_ATTRIBUTE_NORMAL) ||
+ (fData.dwFileAttributes == FILE_ATTRIBUTE_ARCHIVE) ||
+ (fData.dwFileAttributes == FILE_ATTRIBUTE_READONLY))) {
+ snprintf(filename, sizeof(filename), "%s\\%s", infodir,
+ fData.cFileName);
+ fp = fopen(filename, "rb");
+ alreadyhit = 0;
+ nll = nlhl = 0;
+ if (fp != NULL) {
+ while (fgets(fbuf, 256, fp)) {
+ lowerit(lbuf, 256, fbuf);
+ if (strstr(lbuf, lbp)) {
+ if (!alreadyhit) {
+ pr("*** %s ***\n", fData.cFileName);
+ alreadyhit = 1;
+ nhf++;
+ }
+ fbuf[74] = '\n';
+ fbuf[75] = 0;
+ pr(" %s", fbuf);
+ nlhl++;
+ /*
+ * break if too many lines
+ */
+ if ((nhl + nlhl) > lhitlim)
+ break;
}
- fbuf[74] = '\n';
- fbuf[75] = 0;
- pr(" %s", fbuf);
- nlhl++;
- /*
- * break if too many lines
- */
- if ((nhl + nlhl) > lhitlim)
- break;
+ nll++;
}
- nll++;
+ fclose(fp);
}
- fclose(fp);
+ nhl += nlhl;
+ nl += nll;
+ nf++;
+ if (nhl > lhitlim)
+ break;
}
- nhl += nlhl;
- nl += nll;
- nf++;
- if (nhl > lhitlim)
- break;
} while (FindNextFile(hDir, &fData));
FindClose(hDir);
free(lbp);
if ((nhl) > lhitlim) {
- pr("Limit of %ld lines exceeded\n", lhitlim);
+ pr("Limit of %d lines exceeded\n", lhitlim);
}
pr("Found %s in %ld of %ld files and in %ld of %ld lines\n",
- bp, nhf, nf, nhl, nl);
+ name, nhf, nf, nhl, nl);
return RET_OK;
}
-#endif
+#endif /* _WIN32 */
projects / empserver / blobdiff