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Diffstat (limited to 'ax25/axgetput/util.c')
| -rw-r--r-- | ax25/axgetput/util.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/ax25/axgetput/util.c b/ax25/axgetput/util.c new file mode 100644 index 0000000..160647f --- /dev/null +++ b/ax25/axgetput/util.c @@ -0,0 +1,208 @@ +/* @(#) $Id: util.c,v 1.1 2006/12/10 19:12:59 dl9sau Exp $ */ + +/* + * (c) 2002 Thomas Osterried DL9SAU <thomas@x-berg.in-berlin.de> + * License: GPL. See http://www.fsf.org/ + * Sources: http://x-berg.in-berlin.de/cgi-bin/viewcvs.cgi/ampr/axgetput/ + */ + +#include "includes.h" + +#include "axgetput.h" + +/* Use private function because some platforms are broken, eg 386BSD */ + +static int Xtolower(int c) +{ + return (c >= 'A' && c <= 'Z') ? (c - 'A' + 'a') : c; +} + +/*---------------------------------------------------------------------------*/ + +char *strlwc(char *s) +{ + char *p; + + for (p = s; (*p = Xtolower(*p)); p++) ; + return s; +} + +/*---------------------------------------------------------------------------*/ + +char *strtrim(char *s) +{ + char *p; + + for (p = s; *p; p++) ; + while (--p >= s && isspace(*p & 0xff)) ; + p[1] = 0; + return s; +} + +/*---------------------------------------------------------------------------*/ + +int my_read(int fd, char *s, int len_max, int *eof, char *p_break) +{ + + struct timeval timeout; + fd_set errfds; + int len_got; + + *eof = 0; + + for (len_got = 0; len_got < len_max; ) { + int len; + char *s_curr = s + len_got; + + if ((len = read(fd, s_curr, (p_break ? 1 : len_max))) < 1) { + if (len == -1 && errno == EAGAIN) { + sleep(10); + continue; + } + *eof = 1; + // len = 0: normal eof. if we're looking for a string, return -1 since + // we have'nt found + return (len == 0 && p_break ? -1 : (len_got ? len_got : len)); + } + len_got += len; + + // read once? or char in p_break found? + if (!p_break || strchr(p_break, *s_curr)) + break; + } + timeout.tv_sec = 0; + timeout.tv_usec = 0; + FD_ZERO(&errfds); + FD_SET(fdout, &errfds); + if (select(fd+1, 0, 0, &errfds, &timeout) && FD_ISSET(fd, &errfds)) + *eof = 1; + + return len_got; +} + +/*---------------------------------------------------------------------------*/ + +int secure_write(int fd, char *s, int len_write) { + int len_write_left_curr = len_write; + + while (len_write_left_curr) { + int len; + if ((len = write(fd, s, len_write_left_curr)) < 0) { + if (len == -1 && errno == EAGAIN) { + sleep(10); + continue; + } + return -1; + } + if (len != len_write_left_curr) { + // queue busy.. + sleep(10); + } + s += len; + len_write_left_curr -= len; + } + return len_write; +} + +/*---------------------------------------------------------------------------*/ + +char *get_fixed_filename(char *line, long size, unsigned int msg_crc, int generate_filename) { + + static char filename[1024]; + char *p, *q, *r; + + *filename = 0; + + if ((p = strchr(line, '\"'))) { + p++; + } + + /* security.. */ + + if ((q = strrchr((p ? p : line), '/'))) { + p = ++q; + } + if ((q = strrchr((p ? p : line), '\\'))) { + p = ++q; + } + if ((q = strrchr((p ? p : line), ':'))) { + p = ++q; + } + if (!p) { + p = line; + } + while (*p && isspace(*p & 0xff)) + p++; + for (r = filename, q = p; *q; q++) { + if (*q == '"' || *q == ';') { + break; + } + *r++ = *q; + } + *r = 0; + strtrim(filename); + if ((q = strrchr(filename, '.'))) { + if (!*(q+1)) { + /* remove trailing dots */ + *q = 0; + } else { + /* make suffix lowercase */ + strlwc(q); + } + } + if (!*filename && generate_filename) { + sprintf(filename, "unknown-%ld%d%ld.bin", size, msg_crc, time(0)); + } + return filename; +} + +/*---------------------------------------------------------------------------*/ + +/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */ + +/* Linear day numbers of the respective 1sts in non-leap years. */ +static int day_n[] = { 0,31,59,90,120,151,181,212,243,273,304,334,0,0,0,0 }; + /* JanFebMarApr May Jun Jul Aug Sep Oct Nov Dec */ + +/*---------------------------------------------------------------------------*/ + +long date_dos2unix(unsigned short time,unsigned short date) +{ + int month,year; + long secs; + + month = ((date >> 5) & 15)-1; + year = date >> 9; + secs = (time & 31)*2+60*((time >> 5) & 63)+(time >> 11)*3600+86400* + ((date & 31)-1+day_n[month]+(year/4)+year*365-((year & 3) == 0 && + month < 2 ? 1 : 0)+3653); + /* days since 1.1.70 plus 80's leap day */ + return secs; +} + +/*---------------------------------------------------------------------------*/ + +/* Convert linear UNIX date to a MS-DOS time/date pair. */ + +void date_unix2dos(int unix_date,unsigned short *time, unsigned short *date) +{ + int day,year,nl_day,month; + + *time = (unix_date % 60)/2+(((unix_date/60) % 60) << 5)+ + (((unix_date/3600) % 24) << 11); + day = unix_date/86400-3652; + year = day/365; + if ((year+3)/4+365*year > day) year--; + day -= (year+3)/4+365*year; + if (day == 59 && !(year & 3)) { + nl_day = day; + month = 2; + } + else { + nl_day = (year & 3) || day <= 59 ? day : day-1; + for (month = 0; month < 12; month++) + if (day_n[month] > nl_day) break; + } + *date = nl_day-day_n[month-1]+1+(month << 5)+(year << 9); +} + |