diff options
Diffstat (limited to 'src/utils.c')
| -rw-r--r-- | src/utils.c | 121 |
1 files changed, 116 insertions, 5 deletions
diff --git a/src/utils.c b/src/utils.c index 4950ab2..567dc35 100644 --- a/src/utils.c +++ b/src/utils.c @@ -59,12 +59,12 @@ as that of the covered work. */ # endif #endif +#include <sys/time.h> + #include <sys/stat.h> /* For TIOCGWINSZ and friends: */ -#ifdef HAVE_SYS_IOCTL_H -# include <sys/ioctl.h> -#endif +#include <sys/ioctl.h> #ifdef HAVE_TERMIOS_H # include <termios.h> #endif @@ -73,6 +73,11 @@ as that of the covered work. */ #include <signal.h> #include <setjmp.h> +#include <regex.h> +#ifdef HAVE_LIBPCRE +# include <pcre.h> +#endif + #ifndef HAVE_SIGSETJMP /* If sigsetjmp is a macro, configure won't pick it up. */ # ifdef sigsetjmp @@ -769,8 +774,7 @@ fopen_excl (const char *fname, int binary) open_id = 13; fd = open( fname, /* File name. */ flags, /* Flags. */ - 0777, /* Mode for default protection. -*/ + 0777, /* Mode for default protection. */ "rfm=stmlf", /* Stream_LF. */ OPEN_OPT_ARGS); /* Access callback. */ } @@ -918,6 +922,19 @@ acceptable (const char *s) return true; } +/* Determine whether an URL is acceptable to be followed, according to + regex patterns to accept/reject. */ +bool +accept_url (const char *s) +{ + if (opt.acceptregex && !opt.regex_match_fun (opt.acceptregex, s)) + return false; + if (opt.rejectregex && opt.regex_match_fun (opt.rejectregex, s)) + return false; + + return true; +} + /* Check if D2 is a subdirectory of D1. E.g. if D1 is `/something', subdir_p() will return true if and only if D2 begins with `/something/' or is exactly '/something'. */ @@ -1826,6 +1843,17 @@ number_to_static_string (wgint number) ringpos = (ringpos + 1) % RING_SIZE; return buf; } + +/* Converts the byte to bits format if --report-bps option is enabled + */ +wgint +convert_to_bits (wgint num) +{ + if (opt.report_bps) + return num * 8; + return num; +} + /* Determine the width of the terminal we're running on. If that's not possible, return 0. */ @@ -2299,6 +2327,89 @@ base64_decode (const char *base64, void *dest) return q - (char *) dest; } +#ifdef HAVE_LIBPCRE +/* Compiles the PCRE regex. */ +void * +compile_pcre_regex (const char *str) +{ + const char *errbuf; + int erroffset; + pcre *regex = pcre_compile (str, 0, &errbuf, &erroffset, 0); + if (! regex) + { + fprintf (stderr, _("Invalid regular expression %s, %s\n"), + quote (str), errbuf); + return false; + } + return regex; +} +#endif + +/* Compiles the POSIX regex. */ +void * +compile_posix_regex (const char *str) +{ + regex_t *regex = xmalloc (sizeof (regex_t)); + int errcode = regcomp ((regex_t *) regex, str, REG_EXTENDED | REG_NOSUB); + if (errcode != 0) + { + int errbuf_size = regerror (errcode, (regex_t *) regex, NULL, 0); + char *errbuf = xmalloc (errbuf_size); + regerror (errcode, (regex_t *) regex, errbuf, errbuf_size); + fprintf (stderr, _("Invalid regular expression %s, %s\n"), + quote (str), errbuf); + xfree (errbuf); + return NULL; + } + + return regex; +} + +#ifdef HAVE_LIBPCRE +#define OVECCOUNT 30 +/* Matches a PCRE regex. */ +bool +match_pcre_regex (const void *regex, const char *str) +{ + int l = strlen (str); + int ovector[OVECCOUNT]; + + int rc = pcre_exec ((pcre *) regex, 0, str, l, 0, 0, ovector, OVECCOUNT); + if (rc == PCRE_ERROR_NOMATCH) + return false; + else if (rc < 0) + { + logprintf (LOG_VERBOSE, _("Error while matching %s: %d\n"), + quote (str), rc); + return false; + } + else + return true; +} +#undef OVECCOUNT +#endif + +/* Matches a POSIX regex. */ +bool +match_posix_regex (const void *regex, const char *str) +{ + int rc = regexec ((regex_t *) regex, str, 0, NULL, 0); + if (rc == REG_NOMATCH) + return false; + else if (rc == 0) + return true; + else + { + int errbuf_size = regerror (rc, opt.acceptregex, NULL, 0); + char *errbuf = xmalloc (errbuf_size); + regerror (rc, opt.acceptregex, errbuf, errbuf_size); + logprintf (LOG_VERBOSE, _("Error while matching %s: %d\n"), + quote (str), rc); + xfree (errbuf); + return false; + } +} + #undef IS_ASCII #undef NEXT_CHAR |