diff options
Diffstat (limited to 'util.c')
| -rw-r--r-- | util.c | 37 |
1 files changed, 32 insertions, 5 deletions
@@ -1,4 +1,3 @@ -#include <ctype.h> #include <errno.h> #include <stdarg.h> #include <stdio.h> @@ -46,6 +45,16 @@ errx(int exitstatus, const char *fmt, ...) exit(exitstatus); } +/* Handle read or write errors for a FILE * stream */ +void +checkfileerror(FILE *fp, const char *name, int mode) +{ + if (mode == 'r' && ferror(fp)) + errx(1, "read error: %s", name); + else if (mode == 'w' && (fflush(fp) || ferror(fp))) + errx(1, "write error: %s", name); +} + /* strcasestr() included for portability */ char * strcasestr(const char *h, const char *n) @@ -56,8 +65,8 @@ strcasestr(const char *h, const char *n) return (char *)h; for (; *h; ++h) { - for (i = 0; n[i] && tolower((unsigned char)n[i]) == - tolower((unsigned char)h[i]); ++i) + for (i = 0; n[i] && TOLOWER((unsigned char)n[i]) == + TOLOWER((unsigned char)h[i]); ++i) ; if (n[i] == '\0') return (char *)h; @@ -72,7 +81,7 @@ uri_hasscheme(const char *s) { const char *p = s; - for (; isalpha((unsigned char)*p) || isdigit((unsigned char)*p) || + for (; ISALPHA((unsigned char)*p) || ISDIGIT((unsigned char)*p) || *p == '+' || *p == '-' || *p == '.'; p++) ; /* scheme, except if empty and starts with ":" then it is a path */ @@ -99,7 +108,7 @@ uri_parse(const char *s, struct uri *u) } /* scheme / protocol part */ - for (; isalpha((unsigned char)*p) || isdigit((unsigned char)*p) || + for (; ISALPHA((unsigned char)*p) || ISDIGIT((unsigned char)*p) || *p == '+' || *p == '-' || *p == '.'; p++) ; /* scheme, except if empty and starts with ":" then it is a path */ @@ -309,6 +318,24 @@ strtotime(const char *s, time_t *t) return 0; } +time_t +getcomparetime(void) +{ + time_t now, t; + char *p; + + if ((now = time(NULL)) == (time_t)-1) + return (time_t)-1; + + if ((p = getenv("SFEED_NEW_AGE"))) { + if (strtotime(p, &t) == -1) + return (time_t)-1; + return now - t; + } + + return now - 86400; /* 1 day is old news */ +} + /* Escape characters below as HTML 2.0 / XML 1.0. */ void xmlencode(const char *s, FILE *fp) |