| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #ifndef UTIL_XSTDIO_H | ||
| 2 | #define UTIL_XSTDIO_H | ||
| 3 | |||
| 4 | #include <errno.h> | ||
| 5 | #include <stdarg.h> | ||
| 6 | #include <stdbool.h> | ||
| 7 | #include <stdio.h> | ||
| 8 | #include "debug.h" | ||
| 9 | #include "macros.h" | ||
| 10 | #include "xreadwrite.h" | ||
| 11 | |||
| 12 | // Convert fopen(3) mode string to equivalent open(3) flags | ||
| 13 | 8 | static inline int xfopen_mode_to_flags(const char *mode) | |
| 14 | { | ||
| 15 | 8 | BUG_ON(mode[0] == '\0'); | |
| 16 | 8 | bool plus = (mode[1] == '+'); | |
| 17 | 12 | BUG_ON(mode[plus ? 2 : 1] != '\0'); | |
| 18 | |||
| 19 |
3/4✓ Branch 0 taken 2 times.
✓ Branch 1 taken 3 times.
✓ Branch 2 taken 3 times.
✗ Branch 3 not taken.
|
8 | switch (mode[0]) { |
| 20 | 2 | case 'a': | |
| 21 |
2/2✓ Branch 0 taken 1 times.
✓ Branch 1 taken 1 times.
|
2 | return (plus ? O_RDWR : O_WRONLY) | O_CREAT | O_APPEND; |
| 22 | 3 | case 'r': | |
| 23 |
2/2✓ Branch 0 taken 1 times.
✓ Branch 1 taken 2 times.
|
3 | return (plus ? O_RDWR : O_RDONLY); |
| 24 | 3 | case 'w': | |
| 25 |
2/2✓ Branch 0 taken 2 times.
✓ Branch 1 taken 1 times.
|
3 | return (plus ? O_RDWR : O_WRONLY) | O_CREAT | O_TRUNC; |
| 26 | } | ||
| 27 | |||
| 28 | − | BUG("Unknown fopen() mode string: '%s'", mode); | |
| 29 | return 0; | ||
| 30 | } | ||
| 31 | |||
| 32 | 8 | static inline FILE *xfopen(const char *path, const char *mode, int flags, mode_t mask) | |
| 33 | { | ||
| 34 | 8 | BUG_ON(flags != (flags & (O_CLOEXEC | O_NOCTTY | O_NOFOLLOW))); | |
| 35 | 8 | flags |= xfopen_mode_to_flags(mode); | |
| 36 | |||
| 37 | 8 | int fd = xopen(path, flags, mask); | |
| 38 |
1/2✓ Branch 0 taken 8 times.
✗ Branch 1 not taken.
|
8 | if (fd < 0) { |
| 39 | return NULL; | ||
| 40 | } | ||
| 41 | |||
| 42 | 8 | FILE *file = fdopen(fd, mode); | |
| 43 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 8 times.
|
8 | if (unlikely(!file)) { |
| 44 | ✗ | int e = errno; | |
| 45 | ✗ | xclose(fd); | |
| 46 | ✗ | errno = e; | |
| 47 | } | ||
| 48 | return file; | ||
| 49 | } | ||
| 50 | |||
| 51 | char *xfgets(char *restrict buf, int bufsize, FILE *restrict stream); | ||
| 52 | int xfputs(const char *restrict str, FILE *restrict stream); | ||
| 53 | int xfputc(int c, FILE *stream); | ||
| 54 | int xvfprintf(FILE *restrict stream, const char *restrict fmt, va_list ap) VPRINTF(2); | ||
| 55 | int xfprintf(FILE *restrict stream, const char *restrict fmt, ...) PRINTF(2); | ||
| 56 | int xfflush(FILE *stream); | ||
| 57 | |||
| 58 | #endif | ||
| 59 |