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- /* FERRORF.C
- ** Prints error message with printf() formatting syntax, then a colon,
- ** then a message corressponding to the value of errno, then a newline.
- ** Output is to filehandle.
- **
- ** Public Domain by Mark R. Devlin, free usage is permitted.
- */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <stdarg.h>
- #include <string.h>
-
- int ferrorf(FILE *filehandle, const char *format, ...)
- {
- int vfp, fp;
- va_list vargs;
-
- vfp = fp = 0;
- va_start(vargs, format);
- vfp = vfprintf(filehandle, format, vargs);
- va_end(vargs);
- fp = fprintf(filehandle, ": %s\n", sys_errlist[errno]);
- return ((vfp==EOF || fp==EOF) ? EOF : (vfp+fp));
- }
-