diff options
Diffstat (limited to 'libc/string/wstring.c')
| -rw-r--r-- | libc/string/wstring.c | 198 |
1 files changed, 194 insertions, 4 deletions
diff --git a/libc/string/wstring.c b/libc/string/wstring.c index fd9e07d3d..6957b1fb8 100644 --- a/libc/string/wstring.c +++ b/libc/string/wstring.c @@ -35,6 +35,7 @@ #include <ctype.h> #include <stdlib.h> #include <errno.h> +#include <signal.h> #ifdef WANT_WIDE #include <wchar.h> @@ -60,16 +61,28 @@ typedef unsigned char __string_uchar_t; /* NOTE: If we ever do internationalized syserr messages, this will * have to be changed! */ +#define _SYS_NERR 125 +#define _SYS_ERRMSG_MAXLEN 50 + +extern const char _string_syserrmsgs[]; + +#define _SYS_NSIG 32 +#define _SYS_SIGMSG_MAXLEN 25 + +extern const char _string_syssigmsgs[]; + + #if _SYS_ERRMSG_MAXLEN < __UIM_BUFLEN_INT + 14 #define _STRERROR_BUFSIZE (__UIM_BUFLEN_INT + 14) #else #define _STRERROR_BUFSIZE _SYS_ERRMSG_MAXLEN #endif -#define _SYS_NERR 125 -#define _SYS_ERRMSG_MAXLEN 50 - -extern const char _string_syserrmsgs[]; +#if _SYS_SIGMSG_MAXLEN < __UIM_BUFLEN_INT + 14 +#define _STRSIGNAL_BUFSIZE (__UIM_BUFLEN_INT + 14) +#else +#define _STRSIGNAL_BUFSIZE _SYS_SIGMSG_MAXLEN +#endif /**********************************************************************/ #ifdef L__string_syserrmsgs @@ -1727,3 +1740,180 @@ size_t strlcpy(register char *__restrict dst, #endif /**********************************************************************/ +#ifdef L__string_syssigmsgs + +const char _string_syssigmsgs[] = { + /* 0: 0, 1 */ "\0" + /* 1: 1, 7 */ "Hangup\0" + /* 2: 8, 10 */ "Interrupt\0" + /* 3: 18, 5 */ "Quit\0" + /* 4: 23, 20 */ "Illegal instruction\0" + /* 5: 43, 22 */ "Trace/breakpoint trap\0" + /* 6: 65, 8 */ "Aborted\0" + /* 7: 73, 10 */ "Bus error\0" + /* 8: 83, 25 */ "Floating point exception\0" + /* 9: 108, 7 */ "Killed\0" + /* 10: 115, 22 */ "User defined signal 1\0" + /* 11: 137, 19 */ "Segmentation fault\0" + /* 12: 156, 22 */ "User defined signal 2\0" + /* 13: 178, 12 */ "Broken pipe\0" + /* 14: 190, 12 */ "Alarm clock\0" + /* 15: 202, 11 */ "Terminated\0" + /* 16: 213, 12 */ "Stack fault\0" + /* 17: 225, 13 */ "Child exited\0" + /* 18: 238, 10 */ "Continued\0" + /* 19: 248, 17 */ "Stopped (signal)\0" + /* 20: 265, 8 */ "Stopped\0" + /* 21: 273, 20 */ "Stopped (tty input)\0" + /* 22: 293, 21 */ "Stopped (tty output)\0" + /* 23: 314, 21 */ "Urgent I/O condition\0" + /* 24: 335, 24 */ "CPU time limit exceeded\0" + /* 25: 359, 25 */ "File size limit exceeded\0" + /* 26: 384, 22 */ "Virtual timer expired\0" + /* 27: 406, 24 */ "Profiling timer expired\0" + /* 28: 430, 15 */ "Window changed\0" + /* 29: 445, 13 */ "I/O possible\0" + /* 30: 458, 14 */ "Power failure\0" + /* 31: 472, 16 */ "Bad system call" +}; + +#endif + +/**********************************************************************/ +#ifdef L_sys_siglist + +const char *const sys_siglist[_NSIG] = { + NULL, + _string_syssigmsgs + 1, + _string_syssigmsgs + 8, + _string_syssigmsgs + 18, + _string_syssigmsgs + 23, + _string_syssigmsgs + 43, + _string_syssigmsgs + 65, + _string_syssigmsgs + 73, + _string_syssigmsgs + 83, + _string_syssigmsgs + 108, + _string_syssigmsgs + 115, + _string_syssigmsgs + 137, + _string_syssigmsgs + 156, + _string_syssigmsgs + 178, + _string_syssigmsgs + 190, + _string_syssigmsgs + 202, + _string_syssigmsgs + 213, + _string_syssigmsgs + 225, + _string_syssigmsgs + 238, + _string_syssigmsgs + 248, + _string_syssigmsgs + 265, + _string_syssigmsgs + 273, + _string_syssigmsgs + 293, + _string_syssigmsgs + 314, + _string_syssigmsgs + 335, + _string_syssigmsgs + 359, + _string_syssigmsgs + 384, + _string_syssigmsgs + 406, + _string_syssigmsgs + 430, + _string_syssigmsgs + 445, + _string_syssigmsgs + 458, + _string_syssigmsgs + 472, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, +}; + +#endif +/**********************************************************************/ +#ifdef L_strsignal + +/* TODO: make a threadsafe version? */ + +char *strsignal(int signum) +{ + register char *s; + int i; + static char buf[_STRSIGNAL_BUFSIZE]; + static const char unknown[15] = { + 'U', 'n', 'k', 'n', 'o', 'w', 'n', ' ', 's', 'i', 'g', 'n', 'a', 'l', ' ' + }; + + if (((unsigned int) signum) < _SYS_NSIG) { + /* Trade time for space. This function should rarely be called + * so rather than keeping an array of pointers for the different + * messages, just run through the buffer until we find the + * correct string. */ + for (s = (char *) _string_syssigmsgs, i = signum ; i ; ++s) { + if (!*s) { + --i; + } + } + if (*s) { /* Make sure we have an actual message. */ + goto DONE; + } + } + + s = _int10tostr(buf+sizeof(buf)-1, signum) - sizeof(unknown); + memcpy(s, unknown, sizeof(unknown)); + + DONE: + return s; +} + +#endif +/**********************************************************************/ +#ifdef L_psignal + +/* TODO: make this threadsafe with a reentrant version of strsignal? */ + +void psignal(int signum, register const char *message) +{ + /* If the program is calling psignal, it's a safe bet that printf and + * friends are used as well. It is also possible that the calling + * program could buffer stderr, or reassign it. */ + + register const char *sep; + + sep = ": "; + if (!(message && *message)) { /* Caller did not supply a prefix message */ + message = (sep += 2); /* or passed an empty string. */ + } + +#if 1 + fprintf(stderr, "%s%s%s\n", message, sep, strsignal(signum)); +#else + /* Note: Assumes stderr not closed or buffered. */ + __STDIO_THREADLOCK(stderr); + _stdio_fdout(STDERR_FILENO, message, sep, strsignal(signum)); + __STDIO_THREADUNLOCK(stderr); +#endif +} + +#endif +/**********************************************************************/ |