* tools.c -- Miscellaneous routines
*/
-#include <stdio.h>
+
+
+#include <ctype.h>
#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <limits.h>
+#include <netinet/in.h>
+#include <netdb.h>
#include <string.h>
+#include <pwd.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <pthread.h>
+#include <signal.h>
+#include <sys/time.h>
#include "webcit.h"
+#include "webserver.h"
+
+
+char *ascmonths[] = {
+ "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+};
+
+char *ascdays[] = {
+ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
+};
+
char *safestrncpy(char *dest, const char *src, size_t n)
{
if (dest == NULL || src == NULL) {
- fprintf(stderr, "safestrncpy: NULL argument\n");
+ lprintf(1, "safestrncpy: NULL argument\n");
abort();
}
strncpy(dest, src, n);
}
+
/*
- * num_parms() - discover number of parameters...
+ * num_tokens() - discover number of parameters/tokens in a string
*/
-int num_parms(char *source)
-{
+int num_tokens(char *source, char tok) {
int a;
int count = 1;
- for (a = 0; a < strlen(source); ++a)
- if (source[a] == '|')
- ++count;
- return (count);
+ if (source == NULL) return(0);
+ for (a=0; a<strlen(source); ++a) {
+ if (source[a]==tok) ++count;
+ }
+ return(count);
}
/*
- * extract() - extract a parameter from a series of "|" separated...
+ * extract_token() - a smarter string tokenizer
*/
-void extract(char *dest, char *source, int parmnum)
+void extract_token(char *dest, char *source, int parmnum, char separator)
{
- char buf[256];
- int count = 0;
- int n;
+ int i;
+ int len;
+ int curr_parm;
+
+ strcpy(dest,"");
+ len = 0;
+ curr_parm = 0;
- if (strlen(source) == 0) {
- strcpy(dest, "");
+ if (strlen(source)==0) {
return;
}
- n = num_parms(source);
- if (parmnum >= n) {
- strcpy(dest, "");
- return;
+ for (i=0; i<strlen(source); ++i) {
+ if (source[i]==separator) {
+ ++curr_parm;
+ }
+ else if (curr_parm == parmnum) {
+ dest[len+1] = 0;
+ dest[len++] = source[i];
+ }
}
- strcpy(buf, source);
- if ((parmnum == 0) && (n == 1)) {
- strcpy(dest, buf);
- for (n = 0; n < strlen(dest); ++n)
- if (dest[n] == '|')
- dest[n] = 0;
+}
+
+
+
+/*
+ * remove_token() - a tokenizer that kills, maims, and destroys
+ */
+void remove_token(char *source, int parmnum, char separator)
+{
+ int i;
+ int len;
+ int curr_parm;
+ int start, end;
+
+ len = 0;
+ curr_parm = 0;
+ start = (-1);
+ end = (-1);
+
+ if (strlen(source)==0) {
return;
+ }
+
+ for (i=0; i<strlen(source); ++i) {
+ if ( (start < 0) && (curr_parm == parmnum) ) {
+ start = i;
+ }
+
+ if ( (end < 0) && (curr_parm == (parmnum+1)) ) {
+ end = i;
+ }
+
+ if (source[i]==separator) {
+ ++curr_parm;
+ }
}
- while (count++ < parmnum)
- do {
- strcpy(buf, &buf[1]);
- } while ((strlen(buf) > 0) && (buf[0] != '|'));
- if (buf[0] == '|')
- strcpy(buf, &buf[1]);
- for (count = 0; count < strlen(buf); ++count)
- if (buf[count] == '|')
- buf[count] = 0;
- strcpy(dest, buf);
+
+ if (end < 0) end = strlen(source);
+
+ strcpy(&source[start], &source[end]);
}
+
+
+
/*
* extract_int() - extract an int parm w/o supplying a buffer
*/
int extract_int(char *source, int parmnum)
{
- char buf[256];
-
- extract(buf, source, parmnum);
- return (atoi(buf));
+ char buf[SIZ];
+
+ extract_token(buf, source, parmnum, '|');
+ return(atoi(buf));
}
/*
*/
long extract_long(char *source, long int parmnum)
{
- char buf[256];
-
- extract(buf, source, parmnum);
- return (atol(buf));
+ char buf[SIZ];
+
+ extract_token(buf, source, parmnum, '|');
+ return(atol(buf));
}
+
+
+
+
+
+
+
+
+
+
+
+
+
/*
* check for the presence of a character within a string (returns count)
*/
int haschar(st, ch)
char st[];
-int ch;
+char ch;
{
int a, b;
b = 0;
++b;
return (b);
}
+
+
+/*
+ * Format a date/time stamp for output
+ */
+void fmt_date(char *buf, time_t thetime) {
+ struct tm *tm;
+ int hour;
+
+ strcpy(buf, "");
+ tm = localtime(&thetime);
+ hour = tm->tm_hour;
+ if (hour == 0) hour = 12;
+ else if (hour > 12) hour = hour - 12;
+
+ sprintf(buf, "%s %d %d %2d:%02d%s",
+ ascmonths[tm->tm_mon],
+ tm->tm_mday,
+ tm->tm_year + 1900,
+ hour,
+ tm->tm_min,
+ ( (tm->tm_hour > 12) ? "pm" : "am" )
+ );
+}
+
+
+
+/*
+ * Format TIME ONLY for output
+ */
+void fmt_time(char *buf, time_t thetime) {
+ struct tm *tm;
+ int hour;
+
+ strcpy(buf, "");
+ tm = localtime(&thetime);
+ hour = tm->tm_hour;
+ if (hour == 0) hour = 12;
+ else if (hour > 12) hour = hour - 12;
+
+ sprintf(buf, "%d:%02d%s",
+ hour,
+ tm->tm_min,
+ ( (tm->tm_hour > 12) ? "pm" : "am" )
+ );
+}
+
+
+
+
+/*
+ * Format a date/time stamp to the format used in HTTP headers
+ */
+void httpdate(char *buf, time_t thetime) {
+ struct tm *tm;
+
+ strcpy(buf, "");
+ tm = localtime(&thetime);
+
+ sprintf(buf, "%s, %02d %s %4d %02d:%02d:%02d",
+ ascdays[tm->tm_wday],
+ tm->tm_mday,
+ ascmonths[tm->tm_mon],
+ tm->tm_year + 1900,
+ tm->tm_hour,
+ tm->tm_min,
+ tm->tm_sec
+ );
+}
+
+
+
+
+
+/*
+ * Utility function to "readline" from memory
+ * (returns new pointer)
+ */
+char *memreadline(char *start, char *buf, int maxlen)
+{
+ char ch;
+ char *ptr;
+ int len = 0; /* tally our own length to avoid strlen() delays */
+
+ ptr = start;
+ memset(buf, 0, maxlen);
+
+ while (1) {
+ ch = *ptr++;
+ if ( (len < (maxlen - 1)) && (ch != 13) && (ch != 10) ) {
+ buf[strlen(buf) + 1] = 0;
+ buf[strlen(buf)] = ch;
+ ++len;
+ }
+ if ((ch == 10) || (ch == 0)) {
+ return ptr;
+ }
+ }
+}
+
+
+
+/*
+ * pattern2() - searches for patn within search string, returns pos
+ */
+int pattern2(char *search, char *patn)
+{
+ int a;
+ for (a=0; a<strlen(search); ++a) {
+ if (!strncasecmp(&search[a],patn,strlen(patn))) return(a);
+ }
+ return(-1);
+ }
+
+
+/*
+ * Strip leading and trailing spaces from a string
+ */
+void striplt(char *buf)
+{
+ while ((strlen(buf) > 0) && (isspace(buf[0])))
+ strcpy(buf, &buf[1]);
+ while (isspace(buf[strlen(buf) - 1]))
+ buf[strlen(buf) - 1] = 0;
+}
+
+
+/*
+ * Determine whether the specified message number is contained within the
+ * specified set.
+ */
+int is_msg_in_mset(char *mset, long msgnum) {
+ int num_sets;
+ int s;
+ char setstr[SIZ], lostr[SIZ], histr[SIZ]; /* was 1024 */
+ long lo, hi;
+
+ /*
+ * Now set it for all specified messages.
+ */
+ num_sets = num_tokens(mset, ',');
+ for (s=0; s<num_sets; ++s) {
+ extract_token(setstr, mset, s, ',');
+
+ extract_token(lostr, setstr, 0, ':');
+ if (num_tokens(setstr, ':') >= 2) {
+ extract_token(histr, setstr, 1, ':');
+ if (!strcmp(histr, "*")) {
+ snprintf(histr, sizeof histr, "%ld", LONG_MAX);
+ }
+ }
+ else {
+ strcpy(histr, lostr);
+ }
+ lo = atol(lostr);
+ hi = atol(histr);
+
+ if ((msgnum >= lo) && (msgnum <= hi)) return(1);
+ }
+
+ return(0);
+}
+
+
+
+/*
+ * Read binary data from server into memory
+ */
+void read_server_binary(char *buffer, size_t total_len) {
+ char buf[SIZ];
+ size_t bytes = 0;
+ size_t thisblock = 0;
+
+ while (bytes < total_len) {
+ thisblock = 4095;
+ if ((total_len - bytes) < thisblock) {
+ thisblock = total_len - bytes;
+ }
+ serv_printf("READ %d|%d", (int)bytes, (int)thisblock);
+ serv_gets(buf);
+ if (buf[0] == '6') {
+ thisblock = (size_t)atoi(&buf[4]);
+ serv_read(&buffer[bytes], thisblock);
+ bytes += thisblock;
+ }
+ else {
+ wprintf("Error: %s<BR>\n", &buf[4]);
+ }
+ }
+}
+
+
+
+/*
+ * Strip a boundarized substring out of a string (for example, remove
+ * parentheses and anything inside them).
+ *
+ * This improved version can strip out *multiple* boundarized substrings.
+ */
+void stripout(char *str, char leftboundary, char rightboundary) {
+ int a;
+ int lb = (-1);
+ int rb = (-1);
+
+ do {
+ lb = (-1);
+ rb = (-1);
+
+ for (a = 0; a < strlen(str); ++a) {
+ if (str[a] == leftboundary) lb = a;
+ if (str[a] == rightboundary) rb = a;
+ }
+
+ if ( (lb > 0) && (rb > lb) ) {
+ strcpy(&str[lb - 1], &str[rb + 1]);
+ }
+
+ } while ( (lb > 0) && (rb > lb) );
+
+}
+
+
projects / citadel.git / blobdiff