diff options
Diffstat (limited to 'src/bfstd.h')
| -rw-r--r-- | src/bfstd.h | 58 |
1 files changed, 54 insertions, 4 deletions
diff --git a/src/bfstd.h b/src/bfstd.h index f91e380..557f253 100644 --- a/src/bfstd.h +++ b/src/bfstd.h @@ -8,8 +8,8 @@ #ifndef BFS_BFSTD_H #define BFS_BFSTD_H -#include "prelude.h" -#include "sanity.h" +#include "bfs.h" + #include <stddef.h> #include <ctype.h> @@ -18,7 +18,7 @@ * Work around https://github.com/llvm/llvm-project/issues/65532 by forcing a * function, not a macro, to be called. */ -#if __FreeBSD__ && SANITIZE_MEMORY +#if __FreeBSD__ && __SANITIZE_MEMORY__ # define BFS_INTERCEPT(fn) (fn) #else # define BFS_INTERCEPT(fn) fn @@ -158,6 +158,16 @@ FILE *xfopen(const char *path, int flags); */ char *xgetdelim(FILE *file, char delim); +/** + * Open the controlling terminal. + * + * @param flags + * The open() flags. + * @return + * An open file descriptor, or -1 on failure. + */ +int open_cterm(int flags); + // #include <stdlib.h> /** @@ -169,6 +179,23 @@ char *xgetdelim(FILE *file, char delim); const char *xgetprogname(void); /** + * Wrapper for strtoll() that forbids leading spaces. + * + * @param str + * The string to parse. + * @param end + * If non-NULL, will hold a pointer to the first invalid character. + * If NULL, the entire string must be valid. + * @param base + * The base for the conversion, or 0 to auto-detect. + * @param value + * Will hold the parsed integer value, on success. + * @return + * 0 on success, -1 on failure. + */ +int xstrtoll(const char *str, char **end, int base, long long *value); + +/** * Process a yes/no prompt. * * @return 1 for yes, 0 for no, and -1 for unknown. @@ -248,6 +275,11 @@ char *xstpencpy(char *dest, char *end, const char *src, size_t n); const char *xstrerror(int errnum); /** + * Shorthand for xstrerror(errno). + */ +const char *errstr(void); + +/** * Format a mode like ls -l (e.g. -rw-r--r--). * * @param mode @@ -344,7 +376,7 @@ size_t xread(int fd, void *buf, size_t nbytes); * writes. * * @return - The number of bytes written. A value != nbytes indicates an error. + * The number of bytes written. A value != nbytes indicates an error. */ size_t xwrite(int fd, const void *buf, size_t nbytes); @@ -410,6 +442,24 @@ char *xconfstr(int name); */ int xstrtofflags(const char **str, unsigned long long *set, unsigned long long *clear); +/** + * Wrapper for sysconf() that works around an MSan bug. + */ +long xsysconf(int name); + +/** + * Check for a POSIX option[1] at runtime. + * + * [1]: https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/V1_chap02.html#tag_02_01_06 + * + * @param name + * The symbolic name of the POSIX option (e.g. SPAWN). + * @return + * The value of the option, either -1 or a date like 202405. + */ +#define sysoption(name) \ + (_POSIX_##name == 0 ? xsysconf(_SC_##name) : _POSIX_##name) + #include <wchar.h> /** |