/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
*
* THE BSD LICENSE
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* util.c: A hodge podge of utility functions and standard functions which
* are unavailable on certain systems
*
* Rob McCool
*/
#ifdef XP_UNIX
#include <sys/types.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <unistd.h>
#include <limits.h>
#include "prthread.h"
#endif /* XP_UNIX */
//include "nspr.h"
#include <errno.h>
#include "../daemon/netsite.h"
#include "../public/nsapi.h"
#include <ucx/string.h>
#include <ucx/mempool.h>
#include "pblock.h"
#include "util.h"
#include <openssl/bio.h>
#include <openssl/buffer.h>
#include <openssl/evp.h>
/* ------------------------------ _uudecode ------------------------------- */
static const unsigned char pr2six[256] = {
64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,62,64,64,64,63,
52,53,54,55,56,57,58,59,60,61,64,64,64,64,64,64,64,0,1,2,3,4,5,6,7,8,9,
10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,64,64,64,64,64,64,26,27,
28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,
64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,64,64,64,64,64
};
/** you MUST reserve at least 2 additional bytes for bufout */
size_t util_base64decode(char *bufcoded, size_t codedbytes, char *bufout) {
register char *bufin = bufcoded;
register int nprbytes;
size_t nbytesdecoded;
/* Find the length */
nprbytes = (int) codedbytes;
while(pr2six[(int)(bufin[nprbytes-1])] >= 64) {
nprbytes--;
}
nbytesdecoded = ((nprbytes+3)/4) * 3;
while (nprbytes > 0) {
*(bufout++) = (unsigned char)
(pr2six[(int)(*bufin)] << 2 | pr2six[(int)bufin[1]] >> 4);
*(bufout++) = (unsigned char)
(pr2six[(int)bufin[1]] << 4 | pr2six[(int)bufin[2]] >> 2);
*(bufout++) = (unsigned char)
(pr2six[(int)bufin[2]] << 6 | pr2six[(int)bufin[3]]);
bufin += 4;
nprbytes -= 4;
}
if(nprbytes & 03) {
if(pr2six[(int)bufin[-2]] > 63)
nbytesdecoded -= 2;
else
nbytesdecoded -= 1;
}
return nbytesdecoded;
}
char* util_base64encode(char *in, size_t len) {
BIO *b;
BIO *e;
BUF_MEM *mem;
e = BIO_new(BIO_f_base64());
b = BIO_new(BIO_s_mem());
BIO_set_flags(e, BIO_FLAGS_BASE64_NO_NL);
e = BIO_push(e, b);
BIO_write(e, in, len);
BIO_flush(e);
BIO_get_mem_ptr(e, &mem);
char *out = malloc(mem->length + 1);
memcpy(out, mem->data, mem->length);
out[mem->length] = '\0';
BIO_free_all(e);
return out;
}
/* --------------------------- util_env_create ---------------------------- */
NSAPI_PUBLIC char **util_env_create(char **env, int n, int *pos)
{
int x;
if(!env) {
*pos = 0;
return (char **) MALLOC((n + 1)*sizeof(char *));
}
else {
for(x = 0; (env[x]); x++);
env = (char **) REALLOC(env, (n + x + 1)*(sizeof(char *)));
*pos = x;
return env;
}
}
/* ---------------------------- util_env_free ----------------------------- */
NSAPI_PUBLIC void util_env_free(char **env)
{
register char **ep = env;
for(ep = env; *ep; ep++)
FREE(*ep);
FREE(env);
}
/* ----------------------------- util_env_str ----------------------------- */
NSAPI_PUBLIC char *util_env_str(const char *name, const char *value) {
char *t;
size_t len = strlen(name) + strlen(value) + 2;
t = (char *) MALLOC(len); /* 2: '=' and '\0' */
snprintf(t, len, "%s=%s", name, value);
return t;
}
/* --------------------------- util_env_replace --------------------------- */
NSAPI_PUBLIC void util_env_replace(char **env, const char *name, const char *value)
{
int x, y, z;
char *i;
for(x = 0; env[x]; x++) {
i = strchr(env[x], '=');
*i = '\0';
if(!strcmp(env[x], name)) {
y = strlen(env[x]);
z = strlen(value);
env[x] = (char *) REALLOC(env[x], y + z + 2);
util_sprintf(&env[x][y], "=%s", value);
return;
}
*i = '=';
}
}
/* ---------------------------- util_sh_escape ---------------------------- */
NSAPI_PUBLIC char *util_sh_escape(char *s)
{
char *ns = (char *) MALLOC(strlen(s) * 2 + 1); /* worst case */
register char *t, *u;
for(t = s, u = ns; *t; ++t, ++u) {
if(strchr("&;`''\"|*?~<>^()[]{}$\\ #!", *t))
*u++ = '\\';
*u = *t;
}
*u = '\0';
return ns;
}
/* ---------------------------- util_env_find ----------------------------- */
NSAPI_PUBLIC char *util_env_find(char **env, const char *name)
{
char *i;
int x, r;
for(x = 0; env[x]; x++) {
i = strchr(env[x], '=');
*i = '\0';
r = !strcmp(env[x], name);
*i = '=';
if(r)
return i + 1;
}
return NULL;
}
/* ---------------------------- util_env_copy ----------------------------- */
NSAPI_PUBLIC char **util_env_copy(char **src, char **dst)
{
char **src_ptr;
int src_cnt;
int index;
if (!src)
return NULL;
for (src_cnt = 0, src_ptr = src; *src_ptr; src_ptr++, src_cnt++);
if (!src_cnt)
return NULL;
dst = util_env_create(dst, src_cnt, &index);
for (src_ptr = src; *src_ptr; index++, src_ptr++)
dst[index] = STRDUP(*src_ptr);
dst[index] = NULL;
return dst;
}
/* ----------------------------- util_sprintf ----------------------------- */
NSAPI_PUBLIC int util_vsnprintf(char *s, int n, register const char *fmt,
va_list args)
{
return vsnprintf(s, n, fmt, args);
}
NSAPI_PUBLIC int util_snprintf(char *s, int n, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
return vsnprintf(s, n, fmt, args);
}
NSAPI_PUBLIC int util_vsprintf(char *s, register const char *fmt, va_list args)
{
return vsprintf(s, fmt, args);
}
NSAPI_PUBLIC int util_sprintf(char *s, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
return vsprintf(s, fmt, args);
}
// TODO: asprintf
/* -------------------------- util_uri_unescape --------------------------- */
NSAPI_PUBLIC void util_uri_unescape(char *s)
{
char *t, *u;
for(t = s, u = s; *t; ++t, ++u) {
if((*t == '%') && t[1] && t[2]) {
*u = ((t[1] >= 'A' ? ((t[1] & 0xdf) - 'A')+10 : (t[1] - '0'))*16) +
(t[2] >= 'A' ? ((t[2] & 0xdf) - 'A')+10 : (t[2] - '0'));
t += 2;
}
else
if(u != t)
*u = *t;
}
*u = *t;
}
/*
* Same as util_uri_unescape, but returns success/failure
*/
NSAPI_PUBLIC int util_uri_unescape_strict(char *s)
{
char *t, *u, t1, t2;
int rv = 1;
for(t = s, u = s; *t; ++t, ++u) {
if (*t == '%') {
t1 = t[1] & 0xdf; /* [a-f] -> [A-F] */
if ((t1 < 'A' || t1 > 'F') && (t[1] < '0' || t[1] > '9'))
rv = 0;
t2 = t[2] & 0xdf; /* [a-f] -> [A-F] */
if ((t2 < 'A' || t2 > 'F') && (t[2] < '0' || t[2] > '9'))
rv = 0;
*u = ((t[1] >= 'A' ? ((t[1] & 0xdf) - 'A')+10 : (t[1] - '0'))*16) +
(t[2] >= 'A' ? ((t[2] & 0xdf) - 'A')+10 : (t[2] - '0'));
t += 2;
}
else if (u != t)
*u = *t;
}
*u = *t;
return rv;
}
NSAPI_PUBLIC int
util_uri_unescape_plus (const char *src, char *trg, int len)
{
const char *t = src;
char *u = trg == NULL ? (char *)src : trg;
int rlen = 0;
if (len == -1)
len = strlen (src);
for( ; len && *t; ++t, ++u, len--, rlen++)
{
if((*t == '%') && t[1] && t[2])
{
*u = ((t[1] >= 'A' ? ((t[1] & 0xdf) - 'A') + 10 : (t[1] - '0')) * 16) +
(t[2] >= 'A' ? ((t[2] & 0xdf) - 'A') + 10 : (t[2] - '0'));
t += 2;
len-= 2;
}
else
if (*t == '+')
*u = ' ';
else
*u = *t;
}
*u = 0;
return rlen;
}
NSAPI_PUBLIC int INTutil_getboolean(const char *v, int def) {
if(v[0] == 'T' || v[0] == 't') {
return 1;
}
if(v[0] == 'F' || v[0] == 'f') {
return 0;
}
return def;
}
int util_getboolean_s(sstr_t s, int def) {
if(s.length == 0) {
return def;
}
if(s.ptr[0] == 'T' || s.ptr[0] == 't') {
return 1;
}
if(s.ptr[0] == 'F' || s.ptr[0] == 'f') {
return 0;
}
return def;
}
NSAPI_PUBLIC int util_strtoint(char *str, int64_t *value) {
char *end;
errno = 0;
int64_t val = strtoll(str, &end, 0);
if(errno == 0) {
*value = val;
return 1;
} else {
return 0;
}
}
/* ------------------------------ util_itoa ------------------------------- */
/*
NSAPI_PUBLIC int util_itoa(int i, char *a)
{
int len = util_i64toa(i, a);
PR_ASSERT(len < UTIL_ITOA_SIZE);
return len;
}
*/
NSAPI_PUBLIC int INTutil_itoa(int i, char *a) {
return INTutil_i64toa(i, a);
}
/* ----------------------------- util_i64toa ------------------------------ */
/*
* Assumption: Reversing the digits will be faster in the general case
* than doing a log10 or some nasty trick to find the # of digits.
*/
NSAPI_PUBLIC int INTutil_i64toa(int64_t i, char *a)
{
register int x, y, p;
register char c;
int negative;
negative = 0;
if(i < 0) {
*a++ = '-';
negative = 1;
i = -i;
}
p = 0;
while(i > 9) {
a[p++] = (i%10) + '0';
i /= 10;
}
a[p++] = i + '0';
if(p > 1) {
for(x = 0, y = p - 1; x < y; ++x, --y) {
c = a[x];
a[x] = a[y];
a[y] = c;
}
}
a[p] = '\0';
//PR_ASSERT(p + negative < UTIL_I64TOA_SIZE);
return p + negative;
}
#ifndef XP_WIN32
NSAPI_PUBLIC struct passwd *
util_getpwnam(const char *name, struct passwd *result, char *buffer,
int buflen)
{
struct passwd *rv;
errno = getpwnam_r(name, result, buffer, buflen, &rv);
if (errno != 0)
rv = NULL;
return rv;
}
#endif
#ifndef XP_WIN32
NSAPI_PUBLIC struct passwd *
util_getpwuid(uid_t uid, struct passwd *result, char *buffer, int buflen)
{
struct passwd *rv;
errno = getpwuid_r(uid, result, buffer, buflen, &rv);
if (errno != 0)
rv = NULL;
return rv;
}
#endif
NSAPI_PUBLIC int util_errno2status(int errno_value) {
switch(errno_value) {
case 0: {
return 200;
}
case EACCES: {
return 403;
}
case ENOENT: {
return 404;
break;
}
}
return 500;
}
NSAPI_PUBLIC
sstr_t util_path_append(pool_handle_t *pool, char *path, char *ch) {
sstr_t parent = sstr(path);
sstr_t child = sstr(ch);
sstr_t newstr;
UcxAllocator a = util_pool_allocator(pool);
if(parent.ptr[parent.length-1] == '/') {
newstr = sstrcat_a(&a, 2, parent, child);
} else {
newstr = sstrcat_a(&a, 3, parent, S("/"), child);
}
return newstr;
}
sstr_t util_path_remove_last(sstr_t path) {
int i;
for(i=path.length-1;i>=0;i--) {
char c = path.ptr[i];
if(c == '/') {
path.ptr[i] = 0;
path.length = i;
break;
}
}
if(i < 0) {
path.ptr = NULL;
path.length = 0;
}
return path;
}
void util_add_ppath(sstr_t root, sstr_t path, pblock *vars) {
// concat path
size_t length = root.length + path.length;
char *translated_path = alloca(length);
memcpy(translated_path, root.ptr, root.length);
memcpy(translated_path + root.length, path.ptr, path.length);
// add path to specified pblock
pblock_kvinsert(
pb_key_ppath,
translated_path,
length,
vars);
}
UcxAllocator util_pool_allocator(pool_handle_t *pool) {
UcxAllocator a;
a.malloc = (ucx_allocator_malloc)pool_malloc;
a.calloc = (ucx_allocator_calloc)pool_calloc;
a.realloc = (ucx_allocator_realloc)pool_realloc;
a.free = (ucx_allocator_free)pool_free;
a.pool = pool;
return a;
}
// new - code from params.cpp
NSAPI_PUBLIC pblock* util_parse_param(pool_handle_t *pool, char *query) {
pblock *pb = pblock_create_pool(pool, 32);
if(!pb) {
return NULL;
}
if(!query || !(*query)) {
return pb;
}
int loopFlag = 1;
int nl = 0; // size of the name substring
int vl = 0; // size of the value substring
int state = 0;
const char *np = query;
const char *vp = NULL;
while (loopFlag) {
char delim = *query++;
switch (delim) {
case '&':
case '\0': {
if(!delim) {
loopFlag = 0;
}
state = 0;
if(nl > 0) {
util_uri_unescape_plus(np, NULL, nl);
util_uri_unescape_plus(vp, NULL, vl);
pblock_nvlinsert(np, nl, vp, vl, pb);
}
nl = 0;
vl = 0;
vp = NULL;
np = query;
break;
}
case '=': {
state = 1;
vp = query;
break;
}
default: {
if(state) {
vl++;
} else {
nl++;
}
}
} /* switch */
} /* while */
return pb;
}
// TODO: remove
sstr_t sstrdup_mp(UcxMempool *pool, sstr_t s) {
sstr_t newstring;
newstring.ptr = (char*)ucx_mempool_malloc(pool, s.length + 1);
if (newstring.ptr != NULL) {
newstring.length = s.length;
newstring.ptr[newstring.length] = 0;
memcpy(newstring.ptr, s.ptr, s.length);
}
return newstring;
}
/* ---------------------------- util_mstr2num ----------------------------- */
static const int MSTR2NUM_HT_MASK = 0xf;
struct mstr2num_ht {
unsigned ucmstr; // Uppercase 3 character month string in a machine word
int mnum; // 0-based month number for this month string
};
struct mstr2num_ht MSTR2NUM_HT[] = {
{ 'A' << 16 | 'P' << 8 | 'R', 3 },
{ 'S' << 16 | 'E' << 8 | 'P', 8 },
{ 'M' << 16 | 'A' << 8 | 'Y', 4 },
{ 0, -1 },
{ 'M' << 16 | 'A' << 8 | 'R', 2 },
{ 'F' << 16 | 'E' << 8 | 'B', 1 },
{ 0, -1 },
{ 'D' << 16 | 'E' << 8 | 'C', 11 },
{ 'O' << 16 | 'C' << 8 | 'T', 9 },
{ 'J' << 16 | 'U' << 8 | 'N', 5 },
{ 0, -1 },
{ 'A' << 16 | 'U' << 8 | 'G', 7 },
{ 'J' << 16 | 'A' << 8 | 'N', 0 },
{ 'J' << 16 | 'U' << 8 | 'L', 6 },
{ 0, -1 },
{ 'N' << 16 | 'O' << 8 | 'V', 10 }
};
static inline int _mstr2num(const char *s)
{
const unsigned char *mstr = (const unsigned char *) s;
/*
* We compute ucmstr (an uppercase 3 character month string stored in a
* machine word) and hash (a perfect hash based on the last 2 characters
* of the 3 character uppercase month string) from the input string s.
* Note that each character from the input string is masked by 0xdf; in
* ASCII, this has the effect of converting alphabetic characters to
* uppercase while 1. not changing any nonalphabetic characters into
* alphabetic characters and 2. leaving any nul characters unchanged.
*
* The hash value is used as an index into the MSTR2NUM_HT[] hash table.
* If the ucmstr at that index matches our computed ucmstr, the mnum at
* that index is the 0-based month number corresponding to the input
* string.
*
* Note that we never read past the end of the input string and always
* return -1 if the input string doesn't begin with a valid 3 character
* month string.
*/
unsigned char ucmstr0 = mstr[0] & 0xdf;
unsigned ucmstr = ucmstr0 << 16;
if (ucmstr0 != '\0') {
unsigned char ucmstr1 = mstr[1] & 0xdf;
ucmstr |= ucmstr1 << 8;
if (ucmstr1 != '\0') {
unsigned char ucmstr2 = mstr[2] & 0xdf;
ucmstr |= ucmstr2;
unsigned hash = (ucmstr1 >> 2) ^ (ucmstr2 << 1);
int i = hash & MSTR2NUM_HT_MASK;
if (MSTR2NUM_HT[i].ucmstr == ucmstr)
return MSTR2NUM_HT[i].mnum;
}
}
return -1;
}
NSAPI_PUBLIC int util_mstr2num(const char *s)
{
return _mstr2num(s);
}
/* ------------------------- util_str_time_equal -------------------------- */
/*
* Function to compare if two time strings are equal
*
* Acceptable date formats:
* Sun, 06 Nov 1994 08:49:37 GMT ; RFC 822, updated by RFC 1123
* Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036
* Sun Nov 6 08:49:37 1994 ; ANSI C's asctime() format
*
* Return 0 if equal, -1 if not equal.
*/
static inline const char * _parse_day_month(const char *p, int *day, int *month)
{
*day = 0;
if (*p == ',') {
// Parse day and month: ", 06 Nov", ", 06-Nov"
p++;
if (*p == ' ')
p++;
while (*p >= '0' && *p <= '9')
*day = *day * 10 + (*p++ - '0');
if (*p == ' ' || *p == '-')
p++;
*month = _mstr2num(p);
if (*month != -1)
p += 3;
} else {
// Parse month and day: " Nov 6"
if (*p == ' ')
p++;
*month = _mstr2num(p);
if (*month != -1)
p += 3;
while (*p == ' ')
p++;
while (*p >= '0' && *p <= '9')
*day = *day * 10 + (*p++ - '0');
}
return p;
}
static inline void _parse_year_time(const char *p, int *year, const char ** time)
{
int _year = 0;
if (*p == '-') {
// Parse year and time: "-94 08:49:37"
p++;
while (*p >= '0' && *p <= '9')
_year = _year * 10 + (*p++ - '0');
if (_year < 70) {
_year += 2000;
} else {
_year += 1900;
}
if (*p == ' ')
p++;
*time = p;
} else {
// Parse year and time or time and year
if (*p == ' ')
p++;
if (p[0] && p[1] && p[2] == ':') {
// Parse time and year: "08:49:37 1994"
*time = p;
p += 3;
while (*p && *p != ' ')
p++;
if (*p == ' ')
p++;
while (*p >= '0' && *p <= '9')
_year = _year * 10 + (*p++ - '0');
} else {
// Parse year and time: "1994 08:49:37"
while (*p >= '0' && *p <= '9')
_year = _year * 10 + (*p++ - '0');
if (*p == ' ')
p++;
*time = p;
}
}
*year = _year;
}
NSAPI_PUBLIC int util_str_time_equal(const char *t1, const char *t2)
{
// Skip leading whitespace and day of week
while (isspace(*t1))
t1++;
while (isalpha(*t1))
t1++;
while (isspace(*t2))
t2++;
while (isalpha(*t2))
t2++;
// Day and month: ", 06 Nov", ", 06-Nov", or " Nov 6"
int day1;
int month1;
t1 = _parse_day_month(t1, &day1, &month1);
int day2;
int month2;
t2 = _parse_day_month(t2, &day2, &month2);
if (day1 != day2)
return -1;
if (month1 != month2)
return -1;
// Year and time: " 1994 08:49:37", "-94 08:49:37", or " 08:49:37 1994"
int year1;
const char *time1;
_parse_year_time(t1, &year1, &time1);
int year2;
const char *time2;
_parse_year_time(t2, &year2, &time2);
if (year1 != year2)
return -1;
while (*time1 && *time1 != ' ' && *time1 == *time2) {
time1++;
time2++;
}
if (*time2 && *time2 != ' ')
return -1;
return 0;
}
/* --------------------------- util_later_than ---------------------------- */
static int _time_compare(const struct tm *lms, const char *ims)
{
while (isspace(*ims))
ims++;
while (isalpha(*ims))
ims++;
int day;
int month;
ims = _parse_day_month(ims, &day, &month);
if (month == -1)
return 1;
int year;
const char *time;
_parse_year_time(ims, &year, &time);
int rv;
rv = (lms->tm_year + 1900) - year;
if (rv)
return rv;
rv = lms->tm_mon - month;
if (rv)
return rv;
rv = lms->tm_mday - day;
if (rv)
return rv;
const char *p = time;
int hour = 0;
while (*p >= '0' && *p <= '9')
hour = hour * 10 + (*p++ - '0');
if (*p == ':')
p++;
rv = lms->tm_hour - hour;
if (rv)
return rv;
int minutes = 0;
while (*p >= '0' && *p <= '9')
minutes = minutes * 10 + (*p++ - '0');
if (*p == ':')
p++;
rv = lms->tm_min - minutes;
if (rv)
return rv;
int seconds = 0;
while (*p >= '0' && *p <= '9')
seconds = seconds * 10 + (*p++ - '0');
if (*p == ':')
p++;
rv = lms->tm_sec - seconds;
if (rv)
return rv;
return 0;
}
NSAPI_PUBLIC int util_later_than(const struct tm *lms, const char *ims)
{
/*
* Returns 0 if lms later than ims
* 0 if ims is malformed
* 1 if ims later than lms
* 1 if equal
*/
return _time_compare(lms, ims) <= 0;
}
NSAPI_PUBLIC int util_time_equal(const struct tm *lms, const char *ims)
{
return _time_compare(lms, ims) == 0;
}
NSAPI_PUBLIC struct tm *
util_gmtime(const time_t *clock, struct tm *res)
{
return gmtime_r(clock, res);
}
int util_isdate(char *str) {
sstr_t datestr = sstr(str);
sstr_t example = S("Sun, 06 Nov 1994 08:49:37 GMT");
if(datestr.length != example.length) {
return 0;
}
for(int i=0;i<datestr.length;i++) {
char e = example.ptr[i];
if(isdigit(e)) {
if(!isdigit(datestr.ptr[i])) {
return 0;
}
} else if(e == ' ') {
if(datestr.ptr[i] != ' ') {
return 0;
}
} else if(e == ',') {
if(datestr.ptr[i] != ',') {
return 0;
}
} else if(e == ':') {
if(datestr.ptr[i] != ':') {
return 0;
}
}
}
if(!sstrsuffix(datestr, S("GMT"))) {
return 0;
}
return 1;
}
/* ------------------------- util_mime_separator -------------------------- */
NSAPI_PUBLIC int util_mime_separator(char *sep)
{
int size = 35; // documented in nsapi.h
int pos = 0;
sep[pos++] = CR;
sep[pos++] = LF;
sep[pos++] = '-';
sep[pos++] = '-';
int r[6];
for(int i=0;i<6;i++) {
r[i] = rand() % 10000;
}
pos += snprintf(
sep+4,
size-4,
"X%04x%04x%04x%04x%04x%04xE",
r[0],
r[1],
r[2],
r[3],
r[4],
r[5]);
return pos;
}