diff options
Diffstat (limited to 'src/bfstd.c')
| -rw-r--r-- | src/bfstd.c | 63 |
1 files changed, 54 insertions, 9 deletions
diff --git a/src/bfstd.c b/src/bfstd.c index 7680f17..b29fb7b 100644 --- a/src/bfstd.c +++ b/src/bfstd.c @@ -1,13 +1,15 @@ // Copyright © Tavian Barnes <tavianator@tavianator.com> // SPDX-License-Identifier: 0BSD -#include "prelude.h" #include "bfstd.h" + +#include "bfs.h" #include "bit.h" #include "diag.h" #include "sanity.h" #include "thread.h" #include "xregex.h" + #include <errno.h> #include <fcntl.h> #include <langinfo.h> @@ -27,13 +29,13 @@ #include <unistd.h> #include <wchar.h> -#if BFS_USE_SYS_SYSMACROS_H +#if __has_include(<sys/sysmacros.h>) # include <sys/sysmacros.h> -#elif BFS_USE_SYS_MKDEV_H +#elif __has_include(<sys/mkdev.h>) # include <sys/mkdev.h> #endif -#if BFS_USE_UTIL_H +#if __has_include(<util.h>) # include <util.h> #endif @@ -184,6 +186,16 @@ char *xgetdelim(FILE *file, char delim) { } } +int open_cterm(int flags) { + char path[L_ctermid]; + if (ctermid(path) == NULL || strlen(path) == 0) { + errno = ENOTTY; + return -1; + } + + return open(path, flags); +} + const char *xgetprogname(void) { const char *cmd = NULL; #if BFS_HAS_GETPROGNAME @@ -199,6 +211,35 @@ const char *xgetprogname(void) { return cmd; } +int xstrtoll(const char *str, char **end, int base, long long *value) { + // strtoll() skips leading spaces, but we want to reject them + if (xisspace(str[0])) { + errno = EINVAL; + return -1; + } + + // If end is NULL, make sure the entire string is valid + bool entire = !end; + char *endp; + if (!end) { + end = &endp; + } + + errno = 0; + long long result = strtoll(str, end, base); + if (errno != 0) { + return -1; + } + + if (*end == str || (entire && **end != '\0')) { + errno = EINVAL; + return -1; + } + + *value = result; + return 0; +} + /** Compile and execute a regular expression for xrpmatch(). */ static int xrpregex(nl_item item, const char *response) { const char *pattern = nl_langinfo(item); @@ -285,7 +326,7 @@ const char *xstrerror(int errnum) { // On FreeBSD with MemorySanitizer, duplocale() triggers // https://github.com/llvm/llvm-project/issues/65532 -#if BFS_HAS_STRERROR_L && !(__FreeBSD__ && SANITIZE_MEMORY) +#if BFS_HAS_STRERROR_L && !(__FreeBSD__ && __SANITIZE_MEMORY__) # if BFS_HAS_USELOCALE locale_t loc = uselocale((locale_t)0); # else @@ -322,6 +363,10 @@ const char *xstrerror(int errnum) { return ret; } +const char *errstr(void) { + return xstrerror(errno); +} + /** Get the single character describing the given file type. */ static char type_char(mode_t mode) { switch (mode & S_IFMT) { @@ -672,14 +717,14 @@ int xstrtofflags(const char **str, unsigned long long *set, unsigned long long * } long xsysconf(int name) { -#if __FreeBSD__ && SANITIZE_MEMORY +#if __FreeBSD__ && __SANITIZE_MEMORY__ // Work around https://github.com/llvm/llvm-project/issues/88163 __msan_scoped_disable_interceptor_checks(); #endif long ret = sysconf(name); -#if __FreeBSD__ && SANITIZE_MEMORY +#if __FreeBSD__ && __SANITIZE_MEMORY__ __msan_scoped_enable_interceptor_checks(); #endif @@ -922,14 +967,14 @@ static char *dollar_quote(char *dest, char *end, const char *str, size_t len, en /** How much of this string is safe as a bare word? */ static size_t bare_len(const char *str, size_t len) { - // https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_02 + // https://pubs.opengroup.org/onlinepubs/9799919799/utilities/V3_chap02.html#tag_19_02 size_t ret = strcspn(str, "|&;<>()$`\\\"' *?[#~=%!{}"); return ret < len ? ret : len; } /** How much of this string is safe to double-quote? */ static size_t quotable_len(const char *str, size_t len) { - // https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_02_03 + // https://pubs.opengroup.org/onlinepubs/9799919799/utilities/V3_chap02.html#tag_19_02_03 size_t ret = strcspn(str, "`$\\\"!"); return ret < len ? ret : len; } |