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master
local/fileutils.c
65 строк
1 KB
Roman Žilka
watch: Orderly recovery from cmd taking longer than -n [BUG]; code cleanup
06 окт 2023, 08:34
06 окт 2023, 08:34
0a5b342
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#include <errno.h> #ifdef HAVE_ERROR_H # include <error.h> #endif #ifdef HAVE_STDIO_EXT_H # include <stdio_ext.h> #else /* FIXME: use a more portable definition of __fpending() (from gnulib?) */ # include <stdio.h> # define __fpending(fp) ((fp)->_p - (fp)->_bf._base) #endif #include <stdlib.h> #include <unistd.h> #include "nls.h" #include "fileutils.h" #include "c.h" int close_stream(FILE * stream) { const int some_pending = (__fpending(stream) != 0); const int prev_fail = (ferror(stream) != 0); const int fclose_fail = (fclose(stream) != 0); if (prev_fail || (fclose_fail && (some_pending || errno != EBADF))) { if (!fclose_fail && errno != EPIPE) errno = 0; return EOF; } return 0; } /* Use atexit(); */ void close_stdout(void) { if (close_stream(stdout) != 0 && !(errno == EPIPE)) { char const *write_error = _("write error"); error(0, errno, "%s", write_error); _exit(EXIT_FAILURE); } if (close_stream(stderr) != 0) _exit(EXIT_FAILURE); } // read a multi-byte character from a byte-oriented stream wint_t getmb(FILE *f) { unsigned char c2; uf8 byte = 0; int c; wchar_t rval; mbstate_t mbstate; memset(&mbstate, 0, sizeof(mbstate)); while ((c = getc(f)) != EOF) { c2 = c; if (mbrtowc(&rval, (char *)&c2, 1, &mbstate) <= 1) return rval; if (++byte == MB_CUR_MAX) break; } return WEOF; }