diff options
Diffstat (limited to 'source4/torture')
| -rw-r--r-- | source4/torture/smbiconv.c | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/source4/torture/smbiconv.c b/source4/torture/smbiconv.c new file mode 100644 index 0000000000..a7869504f2 --- /dev/null +++ b/source4/torture/smbiconv.c @@ -0,0 +1,241 @@ +/* + Unix SMB/CIFS implementation. + Charset module tester + + Copyright (C) Jelmer Vernooij 2003 + Based on iconv/icon_prog.c from the GNU C Library, + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. + + This program 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 + (at your option) any later version. + + 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., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "includes.h" + +static int process_block (smb_iconv_t cd, const char *addr, size_t len, FILE *output) +{ +#define OUTBUF_SIZE 32768 + const char *start = addr; + char outbuf[OUTBUF_SIZE]; + char *outptr; + size_t outlen; + size_t n; + + while (len > 0) + { + outptr = outbuf; + outlen = OUTBUF_SIZE; + n = smb_iconv (cd, &addr, &len, &outptr, &outlen); + + if (outptr != outbuf) + { + /* We have something to write out. */ + int errno_save = errno; + + if (fwrite (outbuf, 1, outptr - outbuf, output) + < (size_t) (outptr - outbuf) + || ferror (output)) + { + /* Error occurred while printing the result. */ + DEBUG (0, ("conversion stopped due to problem in writing the output")); + return -1; + } + + errno = errno_save; + } + + if (errno != E2BIG) + { + /* iconv() ran into a problem. */ + switch (errno) + { + case EILSEQ: + DEBUG(0,("illegal input sequence at position %ld", + (long) (addr - start))); + break; + case EINVAL: + DEBUG(0, ("\ +incomplete character or shift sequence at end of buffer")); + break; + case EBADF: + DEBUG(0, ("internal error (illegal descriptor)")); + break; + default: + DEBUG(0, ("unknown iconv() error %d", errno)); + break; + } + + return -1; + } + } + + return 0; +} + + +static int process_fd (iconv_t cd, int fd, FILE *output) +{ + /* we have a problem with reading from a descriptor since we must not + provide the iconv() function an incomplete character or shift + sequence at the end of the buffer. Since we have to deal with + arbitrary encodings we must read the whole text in a buffer and + process it in one step. */ + static char *inbuf = NULL; + static size_t maxlen = 0; + char *inptr = NULL; + size_t actlen = 0; + + while (actlen < maxlen) + { + ssize_t n = read (fd, inptr, maxlen - actlen); + + if (n == 0) + /* No more text to read. */ + break; + + if (n == -1) + { + /* Error while reading. */ + DEBUG(0, ("error while reading the input")); + return -1; + } + + inptr += n; + actlen += n; + } + + if (actlen == maxlen) + while (1) + { + ssize_t n; + char *new_inbuf; + + /* Increase the buffer. */ + new_inbuf = (char *) realloc (inbuf, maxlen + 32768); + if (new_inbuf == NULL) + { + DEBUG(0, ("unable to allocate buffer for input")); + return -1; + } + inbuf = new_inbuf; + maxlen += 32768; + inptr = inbuf + actlen; + + do + { + n = read (fd, inptr, maxlen - actlen); + + if (n == 0) + /* No more text to read. */ + break; + + if (n == -1) + { + /* Error while reading. */ + DEBUG(0, ("error while reading the input")); + return -1; + } + + inptr += n; + actlen += n; + } + while (actlen < maxlen); + + if (n == 0) + /* Break again so we leave both loops. */ + break; + } + + /* Now we have all the input in the buffer. Process it in one run. */ + return process_block (cd, inbuf, actlen, output); +} + +/* Main function */ + +int main(int argc, char *argv[]) +{ + const char *file = NULL; + char *from = ""; + char *to = ""; + char *output = NULL; + const char *preload_modules[] = {NULL, NULL}; + FILE *out = stdout; + int fd; + smb_iconv_t cd; + + /* make sure the vars that get altered (4th field) are in + a fixed location or certain compilers complain */ + poptContext pc; + struct poptOption long_options[] = { + POPT_AUTOHELP + { "from-code", 'f', POPT_ARG_STRING, &from, 0, "Encoding of original text" }, + { "to-code", 't', POPT_ARG_STRING, &to, 0, "Encoding for output" }, + { "output", 'o', POPT_ARG_STRING, &output, 0, "Write output to this file" }, + { "preload-modules", 'p', POPT_ARG_STRING, &preload_modules[0], 0, "Modules to load" }, + POPT_COMMON_SAMBA + POPT_TABLEEND + }; + + setlinebuf(stdout); + + pc = poptGetContext("smbiconv", argc, (const char **) argv, + long_options, 0); + + poptSetOtherOptionHelp(pc, "[FILE] ..."); + + while(poptGetNextOpt(pc) != -1); + + /* the following functions are part of the Samba debugging + facilities. See lib/debug.c */ + setup_logging("smbiconv", True); + + if (preload_modules[0]) smb_load_modules(preload_modules); + + if(output) { + out = fopen(output, "w"); + + if(!out) { + DEBUG(0, ("Can't open output file '%s': %s, exiting...\n", output, strerror(errno))); + return 1; + } + } + + cd = smb_iconv_open(to, from); + if((int)cd == -1) { + DEBUG(0,("unable to find from or to encoding, exiting...\n")); + return 1; + } + + while((file = poptGetArg(pc))) { + if(strcmp(file, "-") == 0) fd = 0; + else { + fd = open(file, O_RDONLY); + + if(!fd) { + DEBUG(0, ("Can't open input file '%s': %s, ignoring...\n", file, strerror(errno))); + continue; + } + } + + /* Loop thru all arguments */ + process_fd(cd, fd, out); + + close(fd); + } + poptFreeContext(pc); + + fclose(out); + + return 0; +} |