63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
#include "file.h"
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#include "error.h"
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#include "convert.h"
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#include <paths.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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FILE* get_file_s(const char* path, const char* type) {
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struct stat s;
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FILE* file;
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if (streql("-", path) && type[0] == 'r') {
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clearerr(stdin);
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fflush(stdin);
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return stdin;
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}
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if (lstat(path, &s) < 0) {
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if (type[0] != 'r') goto read;
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error_s("failed to read %s: %s", path, strerror(errno));
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return NULL;
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}
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if (S_ISDIR(s.st_mode)) {
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error_s("%s is a directory", path);
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return NULL;
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}
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read:
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file = fopen(path, type);
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if (file == NULL) {
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error_s("failed to %s file %s: %s", type[0] == 'r' ? "read" : "write", path, strerror(errno));
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}
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return file;
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}
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FILE* get_file(const char* path, const char* type) {
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FILE* file = get_file_s(path, type);
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if (file == NULL) exit(EXIT_FAILURE);
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return file;
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}
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int get_tty (void) {
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int fd = open(_PATH_TTY, O_RDONLY);
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if (fd < 0) error("failed to get tty: %s", strerror(errno));
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return fd;
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}
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FILE* get_tty_stream(char* type) {
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int fd = get_tty();
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FILE* file = fdopen(fd, type);
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if (file == NULL) {
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error("failed to open tty stream: %s", strerror(errno));
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}
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return file;
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}
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