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lwip-contrib-mac/apps/httpserver_raw/makefsdata/makefsdata.c

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/**
* makefsdata: Converts a directory structure for use with the lwIP httpd.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Jim Pettinato
* Simon Goldschmidt
*
* @todo:
* - take TCP_MSS, LWIP_TCP_TIMESTAMPS and
* PAYLOAD_ALIGN_TYPE/PAYLOAD_ALIGNMENT as arguments
*/
#include <stdio.h>
#include <stdlib.h>
#ifdef WIN32
#define WIN32_LEAN_AND_MEAN
#include "windows.h"
#else
#include <dir.h>
#endif
#include <dos.h>
#include <string.h>
/* Compatibility defines Win32 vs. DOS */
#ifdef WIN32
#define FIND_T WIN32_FIND_DATAA
#define FIND_T_FILENAME(fInfo) (fInfo.cFileName)
#define FIND_T_IS_DIR(fInfo) ((fInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0)
#define FIND_T_IS_FILE(fInfo) ((fInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
#define FIND_RET_T HANDLE
#define FINDFIRST_FILE(path, result) FindFirstFileA(path, result)
#define FINDFIRST_DIR(path, result) FindFirstFileA(path, result)
#define FINDNEXT(ff_res, result) FindNextFileA(ff_res, result)
#define FINDFIRST_SUCCEEDED(ret) (ret != INVALID_HANDLE_VALUE)
#define FINDNEXT_SUCCEEDED(ret) (ret == TRUE)
#define GETCWD(path, len) GetCurrentDirectoryA(len, path)
#define CHDIR(path) SetCurrentDirectoryA(path)
#define CHDIR_SUCCEEDED(ret) (ret == TRUE)
#else
#define FIND_T struct ffblk
#define FIND_T_FILENAME(fInfo) (fInfo.ff_name)
#define FIND_T_IS_DIR(fInfo) ((fInfo.ff_attrib & FA_DIREC) == FA_DIREC)
#define FIND_T_IS_FILE(fInfo) (1)
#define FIND_RET_T int
#define FINDFIRST_FILE(path, result) findfirst(path, result, FA_ARCH)
#define FINDFIRST_DIR(path, result) findfirst(path, result, FA_DIREC)
#define FINDNEXT(ff_res, result) FindNextFileA(ff_res, result)
#define FINDFIRST_SUCCEEDED(ret) (ret == 0)
#define FINDNEXT_SUCCEEDED(ret) (ret == 0)
#define GETCWD(path, len) getcwd(path, len)
#define CHDIR(path) chdir(path)
#define CHDIR_SUCCEEDED(ret) (ret == 0)
#endif
#define NEWLINE "\r\n"
#define NEWLINE_LEN 2
/* define this to get the header variables we use to build HTTP headers */
#define LWIP_HTTPD_DYNAMIC_HEADERS 1
#define LWIP_HTTPD_SSI 1
#include "../httpd_structs.h"
#include "../core/inet_chksum.c"
#include "../core/def.c"
/** (Your server name here) */
const char *serverID = "Server: "HTTPD_SERVER_AGENT"\r\n";
/* change this to suit your MEM_ALIGNMENT */
#define PAYLOAD_ALIGNMENT 4
/* set this to 0 to prevent aligning payload */
#define ALIGN_PAYLOAD 1
/* define this to a type that has the required alignment */
#define PAYLOAD_ALIGN_TYPE "unsigned int"
static int payload_alingment_dummy_counter = 0;
#define HEX_BYTES_PER_LINE 16
#define MAX_PATH_LEN 256
#define COPY_BUFSIZE 10240
struct file_entry
{
struct file_entry* next;
const char* filename_c;
};
int process_sub(FILE *data_file, FILE *struct_file);
int process_file(FILE *data_file, FILE *struct_file, const char *filename);
int file_write_http_header(FILE *data_file, const char *filename, int file_size,
u16_t *http_hdr_len, u16_t *http_hdr_chksum);
int file_put_ascii(FILE *file, const char *ascii_string, int len, int *i);
int s_put_ascii(char *buf, const char *ascii_string, int len, int *i);
void concat_files(const char *file1, const char *file2, const char *targetfile);
int check_path(char* path, size_t size);
static unsigned char file_buffer_raw[COPY_BUFSIZE];
/* 5 bytes per char + 3 bytes per line */
static char file_buffer_c[COPY_BUFSIZE * 5 + ((COPY_BUFSIZE / HEX_BYTES_PER_LINE) * 3)];
char curSubdir[MAX_PATH_LEN];
char lastFileVar[MAX_PATH_LEN];
char hdr_buf[4096];
unsigned char processSubs = 1;
unsigned char includeHttpHeader = 1;
unsigned char useHttp11 = 0;
unsigned char supportSsi = 1;
unsigned char precalcChksum = 0;
struct file_entry* first_file = NULL;
struct file_entry* last_file = NULL;
static void print_usage(void)
{
printf(" Usage: htmlgen [targetdir] [-s] [-i] [-f:<filename>]" NEWLINE NEWLINE);
printf(" targetdir: relative or absolute path to files to convert" NEWLINE);
printf(" switch -s: toggle processing of subdirectories (default is on)" NEWLINE);
printf(" switch -e: exclude HTTP header from file (header is created at runtime, default is off)" NEWLINE);
printf(" switch -11: include HTTP 1.1 header (1.0 is default)" NEWLINE);
printf(" switch -nossi: no support for SSI (cannot calculate Content-Length for SSI)" NEWLINE);
printf(" switch -c: precalculate checksums for all pages (default is off)" NEWLINE);
printf(" switch -f: target filename (default is \"fsdata.c\")" NEWLINE);
printf(" if targetdir not specified, htmlgen will attempt to" NEWLINE);
printf(" process files in subdirectory 'fs'" NEWLINE);
}
int main(int argc, char *argv[])
{
char path[MAX_PATH_LEN];
char appPath[MAX_PATH_LEN];
FILE *data_file;
FILE *struct_file;
int filesProcessed;
int i;
char targetfile[MAX_PATH_LEN];
strcpy(targetfile, "fsdata.c");
memset(path, 0, sizeof(path));
memset(appPath, 0, sizeof(appPath));
printf(NEWLINE " makefsdata - HTML to C source converter" NEWLINE);
printf(" by Jim Pettinato - circa 2003 " NEWLINE);
printf(" extended by Simon Goldschmidt - 2009 " NEWLINE NEWLINE);
strcpy(path, "fs");
for(i = 1; i < argc; i++) {
if (argv[i] == NULL) {
continue;
}
if (argv[i][0] == '-') {
if (strstr(argv[i], "-s")) {
processSubs = 0;
} else if (strstr(argv[i], "-e")) {
includeHttpHeader = 0;
} else if (strstr(argv[i], "-11")) {
useHttp11 = 1;
} else if (strstr(argv[i], "-nossi")) {
supportSsi = 0;
} else if (strstr(argv[i], "-c")) {
precalcChksum = 1;
} else if((argv[i][1] == 'f') && (argv[i][2] == ':')) {
strncpy(targetfile, &argv[i][3], sizeof(targetfile) - 1);
targetfile[sizeof(targetfile) - 1] = 0;
printf("Writing to file \"%s\"\n", targetfile);
} else if ((strstr(argv[i], "-?")) || (strstr(argv[i], "-h"))) {
print_usage();
exit(0);
}
} else if ((argv[i][0] == '/') && (argv[i][1] == '?') && (argv[i][2] == 0)) {
print_usage();
exit(0);
} else {
strncpy(path, argv[i], sizeof(path)-1);
path[sizeof(path)-1] = 0;
}
}
if(!check_path(path, sizeof(path))) {
printf("Invalid path: \"%s\"." NEWLINE, path);
exit(-1);
}
GETCWD(appPath, MAX_PATH_LEN);
/* if command line param or subdir named 'fs' not found spout usage verbiage */
if (!CHDIR_SUCCEEDED(CHDIR(path))) {
/* if no subdir named 'fs' (or the one which was given) exists, spout usage verbiage */
printf(" Failed to open directory \"%s\"." NEWLINE NEWLINE, path);
print_usage();
exit(-1);
}
CHDIR(appPath);
printf("HTTP %sheader will %s statically included." NEWLINE,
(includeHttpHeader ? (useHttp11 ? "1.1 " : "1.0 ") : ""),
(includeHttpHeader ? "be" : "not be"));
sprintf(curSubdir, ""); /* start off in web page's root directory - relative paths */
printf(" Processing all files in directory %s", path);
if (processSubs) {
printf(" and subdirectories..." NEWLINE NEWLINE);
} else {
printf("..." NEWLINE NEWLINE);
}
data_file = fopen("fsdata.tmp", "wb");
if (data_file == NULL) {
printf("Failed to create file \"fsdata.tmp\"\n");
exit(-1);
}
struct_file = fopen("fshdr.tmp", "wb");
if (struct_file == NULL) {
printf("Failed to create file \"fshdr.tmp\"\n");
fclose(data_file);
exit(-1);
}
CHDIR(path);
fprintf(data_file, "#include \"fs.h\"" NEWLINE);
fprintf(data_file, "#include \"lwip/def.h\"" NEWLINE);
fprintf(data_file, "#include \"fsdata.h\"" NEWLINE NEWLINE NEWLINE);
fprintf(data_file, "#define file_NULL (struct fsdata_file *) NULL" NEWLINE NEWLINE NEWLINE);
sprintf(lastFileVar, "NULL");
filesProcessed = process_sub(data_file, struct_file);
/* data_file now contains all of the raw data.. now append linked list of
* file header structs to allow embedded app to search for a file name */
fprintf(data_file, NEWLINE NEWLINE);
fprintf(struct_file, "#define FS_ROOT file_%s" NEWLINE, lastFileVar);
fprintf(struct_file, "#define FS_NUMFILES %d" NEWLINE NEWLINE, filesProcessed);
fclose(data_file);
fclose(struct_file);
CHDIR(appPath);
/* append struct_file to data_file */
printf(NEWLINE "Creating target file..." NEWLINE NEWLINE);
concat_files("fsdata.tmp", "fshdr.tmp", targetfile);
/* if succeeded, delete the temporary files */
if (remove("fsdata.tmp") != 0) {
printf("Warning: failed to delete fsdata.tmp\n");
}
if (remove("fshdr.tmp") != 0) {
printf("Warning: failed to delete fshdr.tmp\n");
}
printf(NEWLINE "Processed %d files - done." NEWLINE NEWLINE, filesProcessed);
while (first_file != NULL) {
struct file_entry* fe = first_file;
first_file = fe->next;
free(fe);
}
return 0;
}
int check_path(char* path, size_t size)
{
size_t slen;
if (path[0] == 0) {
/* empty */
return 0;
}
slen = strlen(path);
if (slen >= size) {
/* not NULL-terminated */
return 0;
}
while ((slen > 0) && ((path[slen] == '\\') || (path[slen] == '/'))) {
/* path should not end with trailing backslash */
path[slen] = 0;
slen--;
}
if (slen == 0) {
return 0;
}
return 1;
}
static void copy_file(const char *filename_in, FILE *fout)
{
FILE *fin;
size_t len;
fin = fopen(filename_in, "rb");
if (fin == NULL) {
printf("Failed to open file \"%s\"\n", filename_in);
exit(-1);
}
while((len = fread(file_buffer_raw, 1, COPY_BUFSIZE, fin)) > 0)
{
fwrite(file_buffer_raw, 1, len, fout);
}
fclose(fin);
}
void concat_files(const char *file1, const char *file2, const char *targetfile)
{
FILE *fout;
fout = fopen(targetfile, "wb");
if (fout == NULL) {
printf("Failed to open file \"%s\"\n", targetfile);
exit(-1);
}
copy_file(file1, fout);
copy_file(file2, fout);
fclose(fout);
}
int process_sub(FILE *data_file, FILE *struct_file)
{
FIND_T fInfo;
FIND_RET_T fret;
int filesProcessed = 0;
if (processSubs) {
/* process subs recursively */
size_t sublen = strlen(curSubdir);
size_t freelen = sizeof(curSubdir) - sublen - 1;
LWIP_ASSERT("sublen < sizeof(curSubdir)", sublen < sizeof(curSubdir));
fret = FINDFIRST_DIR("*", &fInfo);
if (FINDFIRST_SUCCEEDED(fret)) {
do {
const char *curName = FIND_T_FILENAME(fInfo);
if ((curName[0] == '.') || (strcmp(curName, "CVS") == 0)) {
continue;
}
if (!FIND_T_IS_DIR(fInfo)) {
continue;
}
if (freelen > 0) {
CHDIR(curName);
strncat(curSubdir, "/", freelen);
strncat(curSubdir, curName, freelen - 1);
curSubdir[sizeof(curSubdir) - 1] = 0;
printf(NEWLINE "processing subdirectory %s/..." NEWLINE, curSubdir);
filesProcessed += process_sub(data_file, struct_file);
CHDIR("..");
curSubdir[sublen] = 0;
} else {
printf("WARNING: cannot process sub due to path length restrictions: \"%s/%s\"\n", curSubdir, curName);
}
} while (FINDNEXT_SUCCEEDED(FINDNEXT(fret, &fInfo)));
}
}
fret = FINDFIRST_FILE("*.*", &fInfo);
if (FINDFIRST_SUCCEEDED(fret)) {
/* at least one file in directory */
do {
if (FIND_T_IS_FILE(fInfo)) {
const char *curName = FIND_T_FILENAME(fInfo);
printf("processing %s/%s..." NEWLINE, curSubdir, curName);
if (process_file(data_file, struct_file, curName) < 0) {
printf(NEWLINE "Error... aborting" NEWLINE);
return -1;
}
filesProcessed++;
}
} while (FINDNEXT_SUCCEEDED(FINDNEXT(fret, &fInfo)));
}
return filesProcessed;
}
int get_file_size(const char* filename)
{
FILE *inFile;
int file_size = -1;
inFile = fopen(filename, "rb");
if (inFile == NULL) {
printf("Failed to open file \"%s\"\n", filename);
exit(-1);
}
fseek(inFile, 0, SEEK_END);
file_size = ftell(inFile);
fclose(inFile);
return file_size;
}
void process_file_data(const char *filename, FILE *data_file)
{
FILE *source_file;
size_t len, written, i, src_off=0;
source_file = fopen(filename, "rb");
if (source_file == NULL) {
printf("Failed to open file \"%s\"\n", filename);
exit(-1);
}
do {
size_t off = 0;
len = fread(file_buffer_raw, 1, COPY_BUFSIZE, source_file);
if (len > 0) {
for (i = 0; i < len; i++) {
sprintf(&file_buffer_c[off], "0x%02.2x,", file_buffer_raw[i]);
off += 5;
if ((++src_off % HEX_BYTES_PER_LINE) == 0) {
memcpy(&file_buffer_c[off], NEWLINE, NEWLINE_LEN);
off += NEWLINE_LEN;
}
}
written = fwrite(file_buffer_c, 1, off, data_file);
}
} while(len > 0);
fclose(source_file);
}
int write_checksums(FILE *struct_file, const char *filename, const char *varname,
u16_t hdr_len, u16_t hdr_chksum)
{
int chunk_size = TCP_MSS;
int offset;
size_t len;
int i = 0;
FILE *f;
#if LWIP_TCP_TIMESTAMPS
/* when timestamps are used, usable space is 12 bytes less per segment */
chunk_size -= 12;
#endif
fprintf(struct_file, "#if HTTPD_PRECALCULATED_CHECKSUM" NEWLINE);
fprintf(struct_file, "const struct fsdata_chksum chksums_%s[] = {" NEWLINE, varname);
memset(file_buffer_raw, 0xab, sizeof(file_buffer_raw));
f = fopen(filename, "rb");
if (f == NULL) {
printf("Failed to open file \"%s\"\n", filename);
exit(-1);
}
if (hdr_len > 0) {
/* add checksum for HTTP header */
fprintf(struct_file, "{%d, 0x%04x, %d}," NEWLINE, 0, hdr_chksum, hdr_len);
i++;
}
for (offset = hdr_len; ; offset += len) {
unsigned short chksum;
len = fread(file_buffer_raw, 1, chunk_size, f);
if (len == 0) {
break;
}
chksum = ~inet_chksum(file_buffer_raw, (u16_t)len);
/* add checksum for data */
fprintf(struct_file, "{%d, 0x%04x, %d}," NEWLINE, offset, chksum, len);
i++;
}
fclose(f);
fprintf(struct_file, "};" NEWLINE);
fprintf(struct_file, "#endif /* HTTPD_PRECALCULATED_CHECKSUM */" NEWLINE);
return i;
}
static int is_valid_char_for_c_var(char x)
{
if (((x >= 'A') && (x <= 'Z')) ||
((x >= 'a') && (x <= 'z')) ||
((x >= '0') && (x <= '9')) ||
(x == '_'))
{
return 1;
}
return 0;
}
static void fix_filename_for_c(char* qualifiedName, size_t max_len)
{
struct file_entry* f;
size_t len = strlen(qualifiedName);
char *new_name = malloc(len + 2);
int filename_ok;
int cnt = 0;
size_t i;
if (len + 3 == max_len) {
printf("File name too long: \"%s\"\n", qualifiedName);
exit(-1);
}
strcpy(new_name, qualifiedName);
for (i = 0; i < len; i++) {
if (!is_valid_char_for_c_var(new_name[i])) {
new_name[i] = '_';
}
}
do {
filename_ok = 1;
for (f = first_file; f != NULL; f = f->next) {
if (!strcmp(f->filename_c, new_name)) {
filename_ok = 0;
cnt++;
// try next unique file name
sprintf(&new_name[len], "%d", cnt);
break;
}
}
} while (!filename_ok && (cnt < 999));
if (!filename_ok) {
printf("Failed to get unique file name: \"%s\"\n", qualifiedName);
exit(-1);
}
strcpy(qualifiedName, new_name);
free(new_name);
}
static void register_filename(const char* qualifiedName)
{
struct file_entry* fe = malloc(sizeof(struct file_entry));
fe->filename_c = strdup(qualifiedName);
fe->next = NULL;
if (first_file == NULL) {
first_file = last_file = fe;
} else {
last_file->next = fe;
last_file = fe;
}
}
int process_file(FILE *data_file, FILE *struct_file, const char *filename)
{
char varname[MAX_PATH_LEN];
int i = 0;
char qualifiedName[MAX_PATH_LEN];
int file_size;
u16_t http_hdr_chksum = 0;
u16_t http_hdr_len = 0;
int chksum_count = 0;
/* create qualified name (TODO: prepend slash or not?) */
sprintf(qualifiedName,"%s/%s", curSubdir, filename);
/* create C variable name */
strcpy(varname, qualifiedName);
/* convert slashes & dots to underscores */
fix_filename_for_c(varname, MAX_PATH_LEN);
register_filename(varname);
#if ALIGN_PAYLOAD
/* to force even alignment of array */
fprintf(data_file, "static const " PAYLOAD_ALIGN_TYPE " dummy_align_%s = %d;" NEWLINE, varname, payload_alingment_dummy_counter++);
#endif /* ALIGN_PAYLOAD */
fprintf(data_file, "static const unsigned char data_%s[] = {" NEWLINE, varname);
/* encode source file name (used by file system, not returned to browser) */
fprintf(data_file, "/* %s (%d chars) */" NEWLINE, qualifiedName, strlen(qualifiedName)+1);
file_put_ascii(data_file, qualifiedName, strlen(qualifiedName)+1, &i);
#if ALIGN_PAYLOAD
/* pad to even number of bytes to assure payload is on aligned boundary */
while(i % PAYLOAD_ALIGNMENT != 0) {
fprintf(data_file, "0x%02.2x,", 0);
i++;
}
#endif /* ALIGN_PAYLOAD */
fprintf(data_file, NEWLINE);
file_size = get_file_size(filename);
if (includeHttpHeader) {
file_write_http_header(data_file, filename, file_size, &http_hdr_len, &http_hdr_chksum);
}
if (precalcChksum) {
chksum_count = write_checksums(struct_file, filename, varname, http_hdr_len, http_hdr_chksum);
}
/* build declaration of struct fsdata_file in temp file */
fprintf(struct_file, "const struct fsdata_file file_%s[] = { {" NEWLINE, varname);
fprintf(struct_file, "file_%s," NEWLINE, lastFileVar);
fprintf(struct_file, "data_%s," NEWLINE, varname);
fprintf(struct_file, "data_%s + %d," NEWLINE, varname, i);
fprintf(struct_file, "sizeof(data_%s) - %d," NEWLINE, varname, i);
fprintf(struct_file, "%d," NEWLINE, includeHttpHeader);
if (precalcChksum) {
fprintf(struct_file, "#if HTTPD_PRECALCULATED_CHECKSUM" NEWLINE);
fprintf(struct_file, "%d, chksums_%s," NEWLINE, chksum_count, varname);
fprintf(struct_file, "#endif /* HTTPD_PRECALCULATED_CHECKSUM */" NEWLINE);
}
fprintf(struct_file, "}};" NEWLINE NEWLINE);
strcpy(lastFileVar, varname);
/* write actual file contents */
i = 0;
fprintf(data_file, NEWLINE "/* raw file data (%d bytes) */" NEWLINE, file_size);
process_file_data(filename, data_file);
fprintf(data_file, "};" NEWLINE NEWLINE);
return 0;
}
int file_write_http_header(FILE *data_file, const char *filename, int file_size,
u16_t *http_hdr_len, u16_t *http_hdr_chksum)
{
int i = 0;
int response_type = HTTP_HDR_OK;
const char* file_type;
const char *cur_string;
size_t cur_len;
int written = 0;
size_t hdr_len = 0;
u16_t acc;
const char *file_ext;
int j;
u8_t keepalive = useHttp11;
if (keepalive) {
size_t loop;
for (loop = 0; loop < NUM_SHTML_EXTENSIONS; loop++) {
if (strstr(filename, g_pcSSIExtensions[loop])) {
/* no keepalive connection for SSI files */
keepalive = 0;
}
}
}
memset(hdr_buf, 0, sizeof(hdr_buf));
if (useHttp11) {
response_type = HTTP_HDR_OK_11;
}
fprintf(data_file, NEWLINE "/* HTTP header */");
if (strstr(filename, "404") == filename) {
response_type = HTTP_HDR_NOT_FOUND;
if (useHttp11) {
response_type = HTTP_HDR_NOT_FOUND_11;
}
} else if (strstr(filename, "400") == filename) {
response_type = HTTP_HDR_BAD_REQUEST;
if (useHttp11) {
response_type = HTTP_HDR_BAD_REQUEST_11;
}
} else if (strstr(filename, "501") == filename) {
response_type = HTTP_HDR_NOT_IMPL;
if (useHttp11) {
response_type = HTTP_HDR_NOT_IMPL_11;
}
}
cur_string = g_psHTTPHeaderStrings[response_type];
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
cur_string = serverID;
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
file_ext = filename;
if (file_ext != NULL) {
while(strstr(file_ext, ".") != NULL) {
file_ext = strstr(file_ext, ".");
file_ext++;
}
}
if((file_ext == NULL) || (*file_ext == 0)) {
printf("failed to get extension for file \"%s\", using default.\n", filename);
file_type = HTTP_HDR_DEFAULT_TYPE;
} else {
for(j = 0; j < NUM_HTTP_HEADERS; j++) {
if(!strcmp(file_ext, g_psHTTPHeaders[j].extension)) {
file_type = g_psHTTPHeaders[j].content_type;
break;
}
}
if (j >= NUM_HTTP_HEADERS) {
printf("failed to get file type for extension \"%s\", using default.\n", file_ext);
file_type = HTTP_HDR_DEFAULT_TYPE;
}
}
if (useHttp11) {
char intbuf[MAX_PATH_LEN];
int content_len = file_size;
memset(intbuf, 0, sizeof(intbuf));
if (!keepalive) {
content_len *= 2;
}
{
cur_string = g_psHTTPHeaderStrings[HTTP_HDR_CONTENT_LENGTH];
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s%d\r\n\" (%d+ bytes) */" NEWLINE, cur_string, content_len, cur_len+2);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
_itoa(content_len, intbuf, 10);
strcat(intbuf, "\r\n");
cur_len = strlen(intbuf);
written += file_put_ascii(data_file, intbuf, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], intbuf, cur_len);
hdr_len += cur_len;
}
}
if (keepalive) {
cur_string = g_psHTTPHeaderStrings[HTTP_HDR_CONN_KEEPALIVE];
} else {
cur_string = g_psHTTPHeaderStrings[HTTP_HDR_CONN_CLOSE];
}
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
}
}
cur_string = file_type;
cur_len = strlen(cur_string);
fprintf(data_file, NEWLINE "/* \"%s\" (%d bytes) */" NEWLINE, cur_string, cur_len);
written += file_put_ascii(data_file, cur_string, cur_len, &i);
i = 0;
if (precalcChksum) {
memcpy(&hdr_buf[hdr_len], cur_string, cur_len);
hdr_len += cur_len;
LWIP_ASSERT("hdr_len <= 0xffff", hdr_len <= 0xffff);
LWIP_ASSERT("strlen(hdr_buf) == hdr_len", strlen(hdr_buf) == hdr_len);
acc = ~inet_chksum(hdr_buf, (u16_t)hdr_len);
*http_hdr_len = (u16_t)hdr_len;
*http_hdr_chksum = acc;
}
return written;
}
int file_put_ascii(FILE *file, const char* ascii_string, int len, int *i)
{
int x;
for(x = 0; x < len; x++) {
unsigned char cur = ascii_string[x];
fprintf(file, "0x%02.2x,", cur);
if ((++(*i) % HEX_BYTES_PER_LINE) == 0) {
fprintf(file, NEWLINE);
}
}
return len;
}
int s_put_ascii(char *buf, const char *ascii_string, int len, int *i)
{
int x;
int idx = 0;
for(x = 0; x < len; x++) {
unsigned char cur = ascii_string[x];
sprintf(&buf[idx], "0x%02.2x,", cur);
idx += 5;
if ((++(*i) % HEX_BYTES_PER_LINE) == 0) {
sprintf(&buf[idx], NEWLINE);
idx += NEWLINE_LEN;
}
}
return len;
}
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