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log.c
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log.c
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#include <stdio.h>
#include <stdarg.h>
#include <ctype.h>
#include <libintl.h>
#include <sys/select.h>
#include <unistd.h>
#include "incore.h"
#include "libgfs.h"
#define _(String) gettext(String)
struct log_state {
int print_level;
};
static struct log_state _state = {MSG_NOTICE};
void increase_verbosity(void)
{
_state.print_level++;
}
void decrease_verbosity(void)
{
_state.print_level--;
}
void print_msg(int priority, char *file, int line, const char *format, va_list args) {
switch (priority) {
case MSG_DEBUG:
printf("(%s:%d)\t", file, line);
vprintf(format, args);
break;
case MSG_INFO:
case MSG_NOTICE:
case MSG_WARN:
vprintf(format, args);
break;
case MSG_ERROR:
case MSG_CRITICAL:
default:
vfprintf(stderr, format, args);
break;
}
return;
}
void print_log_level(int iif, int priority, char *file, int line, const char *format, ...)
{
va_list args;
const char *transform;
va_start(args, format);
transform = _(format);
if((_state.print_level == priority) ||
(!iif && (_state.print_level >= priority)))
print_msg(priority, file, line, transform, args);
va_end(args);
}
int query(struct options *opts, const char *format, ...)
{
va_list args;
const char *transform;
char response;
fd_set rfds;
struct timeval tv;
int err = 0;
int ret = 0;
va_start(args, format);
transform = _(format);
if(opts->yes)
return 1;
if(opts->no)
return 0;
/* Watch stdin (fd 0) to see when it has input. */
FD_ZERO(&rfds);
FD_SET(STDIN_FILENO, &rfds);
tv.tv_sec = 0;
tv.tv_usec = 0;
/* Make sure there isn't extraneous input before asking the
* user the question */
while((err = select(STDIN_FILENO + 1, &rfds, NULL, NULL, &tv))) {
if(err < 0) {
log_debug("Error in select() on stdin\n");
break;
}
err = read(STDIN_FILENO, &response, sizeof(char));
}
query:
vprintf(transform, args);
/* Make sure query is printed out */
fflush(NULL);
rescan:
err = read(STDIN_FILENO, &response, sizeof(char));
if(tolower(response) == 'y') {
ret = 1;
} else if (tolower(response) == 'n') {
ret = 0;
} else if ((response == ' ') || (response == '\t')) {
goto rescan;
} else {
while(response != '\n')
err = read(STDIN_FILENO, &response, sizeof(char));
printf("Bad response, please type 'y' or 'n'.\n");
goto query;
}
/* Clip the input */
while((err = select(STDIN_FILENO + 1, &rfds, NULL, NULL, &tv))) {
if(err < 0) {
log_debug("Error in select() on stdin\n");
break;
}
err = read(STDIN_FILENO, &response, sizeof(char));
}
return ret;
}

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Mon, Feb 24, 11:35 AM (15 h, 44 m ago)
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log.c (2 KB)

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