int main(int argc, char **argv)
{
char line[2048];
int c;
FILE *in, *out;
char *outfn = NULL, *newfn = NULL;
int verbose = 0;
while ((c = getopt (argc, argv, "f:v")) != EOF) {
switch (c) {
case 'f':
in = fopen(optarg, "r");
if (!in) {
perror(optarg);
exit(1);
}
parse_config_file(in);
fclose(in);
break;
case 'v':
verbose++;
break;
default:
fprintf(stderr, "%s: [-f config-file] [file]\n",
argv[0]);
break;
}
}
if (optind < argc) {
in = fopen(argv[optind], "r");
if (!in) {
perror(argv[optind]);
exit(1);
}
optind++;
} else
in = stdin;
if (optind < argc) {
outfn = argv[optind];
newfn = (char *) malloc(strlen(outfn)+20);
if (!newfn) {
fprintf(stderr, "Memory error! Exiting.\n");
exit(1);
}
strcpy(newfn, outfn);
strcat(newfn, ".new");
out = fopen(newfn, "w");
if (!out) {
perror(newfn);
exit(1);
}
} else {
out = stdout;
outfn = 0;
}
while (!feof(in)) {
if (fgets(line, sizeof(line), in) == NULL)
break;
substitute_line(line);
fputs(line, out);
}
fclose(in);
fclose(out);
if (outfn) {
if (compare_file(outfn, newfn)) {
if (verbose)
printf("No change, keeping %s.\n", outfn);
unlink(newfn);
} else {
if (verbose)
printf("Creating or replacing %s.\n", outfn);
rename(newfn, outfn);
}
}
return (0);
}
int main(int argc, char **argv)
{
char line[2048];
int c;
FILE *in, *out;
char *outfn = NULL, *newfn = NULL;
int verbose = 0;
int adjust_timestamp = 0;
struct stat stbuf;
struct utimbuf ut;
while ((c = getopt (argc, argv, "f:tv")) != EOF) {
switch (c) {
case 'f':
in = fopen(optarg, "r");
if (!in) {
perror(optarg);
exit(1);
}
parse_config_file(in);
fclose(in);
break;
case 't':
adjust_timestamp++;
break;
case 'v':
verbose++;
break;
default:
fprintf(stderr, "%s: [-f config-file] [file]\n",
argv[0]);
break;
}
}
if (optind < argc) {
in = fopen(argv[optind], "r");
if (!in) {
perror(argv[optind]);
exit(1);
}
optind++;
} else
in = stdin;
if (optind < argc) {
outfn = argv[optind];
newfn = (char *) malloc(strlen(outfn)+20);
if (!newfn) {
fprintf(stderr, "Memory error! Exiting.\n");
exit(1);
}
strcpy(newfn, outfn);
strcat(newfn, ".new");
out = fopen(newfn, "w");
if (!out) {
perror(newfn);
exit(1);
}
} else {
out = stdout;
outfn = 0;
}
while (!feof(in)) {
if (fgets(line, sizeof(line), in) == NULL)
break;
substitute_line(line);
fputs(line, out);
}
fclose(in);
fclose(out);
if (outfn) {
struct stat st;
if (compare_file(outfn, newfn)) {
if (verbose)
printf("No change, keeping %s.\n", outfn);
if (adjust_timestamp) {
if (stat(outfn, &stbuf) == 0) {
if (verbose)
printf("Updating modtime for %s\n", outfn);
ut.actime = stbuf.st_atime;
ut.modtime = time(0);
if (utime(outfn, &ut) < 0)
perror("utime");
}
}
unlink(newfn);
} else {
if (verbose)
printf("Creating or replacing %s.\n", outfn);
rename(newfn, outfn);
}
/* set read-only to alert user it is a generated file */
if (stat(outfn, &st) == 0)
chmod(outfn, st.st_mode & ~0222);
}
return (0);
}
int main(int argc, char **argv)
{
char line[2048];
int c;
int fd;
FILE *in, *out, *old = NULL;
char *outfn = NULL, *newfn = NULL;
int verbose = 0;
int adjust_timestamp = 0;
int got_atime = 0;
struct stat stbuf;
struct timeval tv[2];
while ((c = getopt (argc, argv, "f:tv")) != EOF) {
switch (c) {
case 'f':
in = fopen(optarg, "r");
if (!in) {
perror(optarg);
exit(1);
}
parse_config_file(in);
fclose(in);
break;
case 't':
adjust_timestamp++;
break;
case 'v':
verbose++;
break;
default:
fprintf(stderr, "%s: [-f config-file] [file]\n",
argv[0]);
break;
}
}
if (optind < argc) {
in = fopen(argv[optind], "r");
if (!in) {
perror(argv[optind]);
exit(1);
}
optind++;
} else
in = stdin;
if (optind < argc) {
outfn = argv[optind];
newfn = (char *) malloc(strlen(outfn)+20);
if (!newfn) {
fprintf(stderr, "Memory error! Exiting.\n");
exit(1);
}
strcpy(newfn, outfn);
strcat(newfn, ".new");
fd = open(newfn, O_CREAT|O_TRUNC|O_RDWR, 0444);
if (fd < 0) {
perror(newfn);
exit(1);
}
out = fdopen(fd, "w+");
if (!out) {
perror("fdopen");
exit(1);
}
fd = open(outfn, O_RDONLY);
if (fd > 0) {
/* save the original atime, if possible */
if (fstat(fd, &stbuf) == 0) {
#if HAVE_STRUCT_STAT_ST_ATIM
tv[0].tv_sec = stbuf.st_atim.tv_sec;
tv[0].tv_usec = stbuf.st_atim.tv_nsec / 1000;
#else
tv[0].tv_sec = stbuf.st_atime;
tv[0].tv_usec = 0;
#endif
got_atime = 1;
}
old = fdopen(fd, "r");
if (!old)
close(fd);
}
} else {
out = stdout;
outfn = 0;
}
while (!feof(in)) {
if (fgets(line, sizeof(line), in) == NULL)
break;
substitute_line(line);
fputs(line, out);
}
fclose(in);
if (outfn) {
fflush(out);
rewind(out);
if (old && compare_file(old, out)) {
if (verbose)
printf("No change, keeping %s.\n", outfn);
if (adjust_timestamp) {
if (verbose)
printf("Updating modtime for %s\n", outfn);
if (gettimeofday(&tv[1], NULL) < 0) {
perror("gettimeofday");
exit(1);
}
if (got_atime == 0)
tv[0] = tv[1];
else if (verbose)
printf("Using original atime\n");
#ifdef HAVE_FUTIMES
if (futimes(fileno(old), tv) < 0)
perror("futimes");
#else
if (utimes(outfn, tv) < 0)
perror("utimes");
#endif
}
fclose(out);
if (unlink(newfn) < 0)
perror("unlink");
} else {
if (verbose)
printf("Creating or replacing %s.\n", outfn);
fclose(out);
if (old)
fclose(old);
old = NULL;
if (rename(newfn, outfn) < 0) {
perror("rename");
exit(1);
}
}
}
if (old)
fclose(old);
return (0);
}
