101 lines
2.2 KiB
Diff
101 lines
2.2 KiB
Diff
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Submitted By: Mario Fetka (mario dot fetka at gmail dot com)
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Date: 2009-03-19
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Initial Package Version: 0.49
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Origin: http://oss.netfarm.it/guides/ris-linux.php
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Upstream Status: unknown
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Description: A patch for hpa-tftp to permit case insensitive file lookups
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diff -Naur tftp-hpa-0.49.orig/tftpd/tftpd.c tftp-hpa-0.49/tftpd/tftpd.c
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--- tftp-hpa-0.49.orig/tftpd/tftpd.c 2009-03-19 17:50:47.883141096 +0000
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+++ tftp-hpa-0.49/tftpd/tftpd.c 2009-03-19 18:00:20.991735706 +0000
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@@ -46,6 +46,7 @@
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#include <pwd.h>
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#include <limits.h>
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#include <syslog.h>
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+#include <dirent.h>
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#include "common/tftpsubs.h"
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#include "recvfrom.h"
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@@ -972,6 +973,9 @@
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static void tftp_sendfile(struct formats *, struct tftphdr *, int);
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static void tftp_recvfile(struct formats *, struct tftphdr *, int);
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+int lookup_entry(const char *comp, char *dest);
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+void lookup_file(char *filename);
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+
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struct formats {
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const char *f_mode;
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char *(*f_rewrite) (char *, int, const char **);
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@@ -1332,6 +1336,63 @@
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}
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#endif
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+int lookup_entry(const char *comp, char *dest)
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+{
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+ DIR *dirp;
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+ struct dirent *dptr;
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+ dirp = opendir(dest[0] ? dest : ".");
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+ if (!dirp) return 0;
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+ while ((dptr = readdir(dirp)))
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+ {
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+ if (!strcasecmp(dptr->d_name, comp))
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+ {
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+ if (dest[0]) strcat(dest, "/");
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+ strcat(dest, dptr->d_name);
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+ closedir(dirp);
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+ return 1;
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+ }
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+ }
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+ closedir(dirp);
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+ return 0;
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+}
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+
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+
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+void lookup_file(char *filename)
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+{
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+ int found = 0;
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+ int len = 0;
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+ char dest[1024];
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+ char comp[1024];
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+ char *check = filename;
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+ char *seek = NULL;
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+
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+ dest[0] = 0;
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+ check++;
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+ while (*check)
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+ {
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+ seek = strchr(check, '\\');
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+ if (!seek)
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+ {
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+ if ((*check) && (lookup_entry(check, dest)))
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+ found = 1;
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+ break;
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+ }
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+ len = seek - check;
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+ memcpy(comp, check, len);
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+ comp[len]=0;
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+ if (!lookup_entry(comp, dest))
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+ break;
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+ check += len + 1;
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+ }
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+
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+ if (found)
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+ {
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+ filename[0] = 0;
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+ strcat(filename, dest);
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+ }
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+}
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+
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+
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static FILE *file;
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/*
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* Validate file access. Since we
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@@ -1357,6 +1418,7 @@
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tsize_ok = 0;
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*errmsg = NULL;
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+ if (*filename == '\\') lookup_file(filename);
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if (!secure) {
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if (*filename != '/') {
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*errmsg = "Only absolute filenames allowed";
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