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/* utf2.c
* 31mar05abu
* Convert process or file (ISO-8859-15) to stdout (UTF-8, 2-Byte)
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <signal.h>
#include <sys/wait.h>
// utf2 [-<cmd> [<arg> ..]]
// utf2 [<Infile/ISO-8859-15>]
int main(int ac, char *av[]) {
int c;
pid_t pid = 0;
FILE *fp = stdin;
if (ac > 1) {
if (*av[1] == '-') {
int pfd[2];
if (pipe(pfd) < 0) {
fprintf(stderr, "utf2: Pipe errorn");
return 1;
}
if ((pid = fork()) == 0) {
close(pfd[0]);
if (pfd[1] != STDOUT_FILENO)
dup2(pfd[1], STDOUT_FILENO), close(pfd[1]);
execvp(av[1]+1, av+1);
}
if (pid < 0) {
fprintf(stderr, "utf2: Fork errorn");
return 1;
}
close(pfd[1]);
if (!(fp = fdopen(pfd[0], "r"))) {
fprintf(stderr, "utf2: Pipe open errorn");
return 1;
}
}
else if (!(fp = fopen(av[1], "r"))) {
fprintf(stderr, "utf2: '%s' open errorn", av[1]);
return 1;
}
}
while ((c = getc_unlocked(fp)) != EOF) {
if (c == 0xA4)
putchar_unlocked(0xE2), putchar_unlocked(0x82), putchar_unlocked(0xAC);
else if (c >= 0x80) {
putchar_unlocked(0xC0 | c>>6 & 0x1F);
putchar_unlocked(0x80 | c & 0x3F);
}
else
putchar_unlocked(c);
}
if (pid) {
fclose(fp);
while (waitpid(pid, NULL, 0) < 0)
if (errno != EINTR) {
fprintf(stderr, "utf2: Pipe close errorn");
return 1;
}
}
return 0;
}
http:///wiki/?utf2c