diff options
Diffstat (limited to 'loadacm.c')
| -rw-r--r-- | loadacm.c | 664 |
1 files changed, 314 insertions, 350 deletions
@@ -1,3 +1,4 @@ +/* vi: set sw=4 ts=4: */ /* * Derived from * mapscrn.c - version 0.92 @@ -23,120 +24,115 @@ typedef unsigned short unicode; static long int ctoi(unsigned char *s, int *is_unicode); -int old_screen_map_read_ascii(FILE *fp, unsigned char buf[]); -int uni_screen_map_read_ascii(FILE *fp, unicode buf[], int* is_unicode); -unicode utf8_to_ucs2 (char* buf); -int screen_map_load(int fd, FILE *fp); +int old_screen_map_read_ascii(FILE * fp, unsigned char buf[]); +int uni_screen_map_read_ascii(FILE * fp, unicode buf[], int *is_unicode); +unicode utf8_to_ucs2(char *buf); +int screen_map_load(int fd, FILE * fp); int loadacm_main(int argc, char **argv) { - int fd; - - fd = open("/dev/tty", O_RDWR); - if (fd < 0) { - fprintf(stderr, "Error opening /dev/tty1: %s\n", strerror(errno)); - return 1; - } - - if (screen_map_load(fd, stdin)) - { - fprintf(stderr, "Error loading acm: %s\n", strerror(errno)); - return 1; - } - - write(fd, "\033(K", 3); - - return 0; + int fd; + + fd = open("/dev/tty", O_RDWR); + if (fd < 0) { + fprintf(stderr, "Error opening /dev/tty1: %s\n", strerror(errno)); + return 1; + } + + if (screen_map_load(fd, stdin)) { + fprintf(stderr, "Error loading acm: %s\n", strerror(errno)); + return 1; + } + + write(fd, "\033(K", 3); + + return 0; } -int screen_map_load(int fd, FILE *fp) +int screen_map_load(int fd, FILE * fp) { - struct stat stbuf; - unicode wbuf[E_TABSZ]; - unsigned char buf[E_TABSZ]; - int parse_failed = 0; - int is_unicode; - - if (fstat(fp->_fileno, &stbuf)) - perror("Cannot stat map file"), exit(1); - - /* first try a UTF screen-map: either ASCII (no restriction) or binary (regular file) */ - if (!(parse_failed = (-1 == uni_screen_map_read_ascii(fp,wbuf,&is_unicode))) || - (S_ISREG(stbuf.st_mode) && - (stbuf.st_size == (sizeof(unicode) * E_TABSZ)))) /* test for binary UTF map by size */ - { - if (parse_failed) - { - if (-1 == fseek (fp, 0, SEEK_SET)) - { - if (errno == ESPIPE) - fprintf (stderr, "16bit screen-map MUST be a regular file.\n"), exit (1); - else - perror ("fseek failed reading binary 16bit screen-map"), exit (1); - } - - if (fread(wbuf, sizeof(unicode) * E_TABSZ, 1, fp) != 1) - perror("Cannot read [new] map from file"), exit(1); + struct stat stbuf; + unicode wbuf[E_TABSZ]; + unsigned char buf[E_TABSZ]; + int parse_failed = 0; + int is_unicode; + + if (fstat(fp->_fileno, &stbuf)) + perror("Cannot stat map file"), exit(1); + + /* first try a UTF screen-map: either ASCII (no restriction) or binary (regular file) */ + if (! + (parse_failed = + (-1 == uni_screen_map_read_ascii(fp, wbuf, &is_unicode))) +|| (S_ISREG(stbuf.st_mode) && (stbuf.st_size == (sizeof(unicode) * E_TABSZ)))) { /* test for binary UTF map by size */ + if (parse_failed) { + if (-1 == fseek(fp, 0, SEEK_SET)) { + if (errno == ESPIPE) + fprintf(stderr, + "16bit screen-map MUST be a regular file.\n"), + exit(1); + else + perror("fseek failed reading binary 16bit screen-map"), + exit(1); + } + + if (fread(wbuf, sizeof(unicode) * E_TABSZ, 1, fp) != 1) + perror("Cannot read [new] map from file"), exit(1); #if 0 - else - fprintf(stderr, "Input screen-map is binary.\n"); + else + fprintf(stderr, "Input screen-map is binary.\n"); #endif + } + + /* if it was effectively a 16-bit ASCII, OK, else try to read as 8-bit map */ + /* same if it was binary, ie. if parse_failed */ + if (parse_failed || is_unicode) { + if (ioctl(fd, PIO_UNISCRNMAP, wbuf)) + perror("PIO_UNISCRNMAP ioctl"), exit(1); + else + return 0; + } } - /* if it was effectively a 16-bit ASCII, OK, else try to read as 8-bit map */ - /* same if it was binary, ie. if parse_failed */ - if (parse_failed || is_unicode) - { - if (ioctl(fd,PIO_UNISCRNMAP,wbuf)) - perror("PIO_UNISCRNMAP ioctl"), exit(1); - else - return 0; + /* rewind... */ + if (-1 == fseek(fp, 0, SEEK_SET)) { + if (errno == ESPIPE) + fprintf(stderr, + "Assuming 8bit screen-map - MUST be a regular file.\n"), + exit(1); + else + perror("fseek failed assuming 8bit screen-map"), exit(1); } - } - - /* rewind... */ - if (-1 == fseek (fp, 0, SEEK_SET)) - { - if (errno == ESPIPE) - fprintf (stderr, "Assuming 8bit screen-map - MUST be a regular file.\n"), exit (1); - else - perror ("fseek failed assuming 8bit screen-map"), exit (1); - } - - /* ... and try an old 8-bit screen-map */ - if (!(parse_failed = (-1 == old_screen_map_read_ascii(fp,buf))) || - (S_ISREG(stbuf.st_mode) && - (stbuf.st_size == E_TABSZ))) /* test for binary old 8-bit map by size */ - { - if (parse_failed) - { - if (-1 == fseek (fp, 0, SEEK_SET)) - { - if (errno == ESPIPE) - /* should not - it succedeed above */ - fprintf (stderr, "fseek() returned ESPIPE !\n"), exit (1); - else - perror ("fseek for binary 8bit screen-map"), exit (1); - } - - if (fread(buf,E_TABSZ,1,fp) != 1) - perror("Cannot read [old] map from file"), exit(1); + + /* ... and try an old 8-bit screen-map */ + if (!(parse_failed = (-1 == old_screen_map_read_ascii(fp, buf))) || + (S_ISREG(stbuf.st_mode) && (stbuf.st_size == E_TABSZ))) { /* test for binary old 8-bit map by size */ + if (parse_failed) { + if (-1 == fseek(fp, 0, SEEK_SET)) { + if (errno == ESPIPE) + /* should not - it succedeed above */ + fprintf(stderr, "fseek() returned ESPIPE !\n"), + exit(1); + else + perror("fseek for binary 8bit screen-map"), exit(1); + } + + if (fread(buf, E_TABSZ, 1, fp) != 1) + perror("Cannot read [old] map from file"), exit(1); #if 0 - else - fprintf(stderr, "Input screen-map is binary.\n"); + else + fprintf(stderr, "Input screen-map is binary.\n"); #endif + } + + if (ioctl(fd, PIO_SCRNMAP, buf)) + perror("PIO_SCRNMAP ioctl"), exit(1); + else + return 0; + } else { + fprintf(stderr, "Error parsing symbolic map\n"); + exit(1); } - - if (ioctl(fd,PIO_SCRNMAP,buf)) - perror("PIO_SCRNMAP ioctl"), exit(1); - else - return 0; - } - else - { - fprintf(stderr, "Error parsing symbolic map\n"); - exit(1); - } } @@ -149,116 +145,111 @@ int screen_map_load(int fd, FILE *fp) * * FIXME: ignores everything after second word */ -int uni_screen_map_read_ascii(FILE *fp, unicode buf[], int *is_unicode) +int uni_screen_map_read_ascii(FILE * fp, unicode buf[], int *is_unicode) { - char buffer[256]; /* line buffer reading file */ - char *p, *q; /* 1st + 2nd words in line */ - int in, on; /* the same, as numbers */ - int tmp_is_unicode; /* tmp for is_unicode calculation */ - int i; /* loop index - result holder */ - int ret_code = 0; /* return code */ - sigset_t sigset, old_sigset; - - assert (is_unicode); - - *is_unicode = 0; - - /* first 128 codes defaults to ASCII */ - for (i=0; i<128; i++) buf[i] = i; - /* remaining defaults to replacement char (usually E_TABSZ = 256) */ - for ( ; i<E_TABSZ; i++) buf[i] = 0xfffd; - - /* block SIGCHLD */ - sigemptyset (&sigset); - sigaddset (&sigset, SIGCHLD); - sigprocmask (SIG_BLOCK, &sigset, &old_sigset); - - do - { - if (NULL == fgets(buffer, sizeof(buffer),fp)) - { - if (feof (fp)) - break; - else - { - perror ("uni_screen_map_read_ascii() can't read line"); - exit (2); - } - } - - /* get "charset-relative charcode", stripping leading spaces */ - p = strtok(buffer," \t\n"); - - /* skip empty lines and comments */ - if (!p || *p == '#') - continue; - - /* get unicode mapping */ - q = strtok(NULL," \t\n"); - if (q) - { - in = ctoi(p, NULL); - if (in < 0 || in > 255) - { - ret_code = -1; - break; - } - - on = ctoi(q, &tmp_is_unicode); - if (in < 0 && on > 65535) - { - ret_code = -1; - break; - } - - *is_unicode |= tmp_is_unicode; - buf[in] = on; + char buffer[256]; /* line buffer reading file */ + char *p, *q; /* 1st + 2nd words in line */ + int in, on; /* the same, as numbers */ + int tmp_is_unicode; /* tmp for is_unicode calculation */ + int i; /* loop index - result holder */ + int ret_code = 0; /* return code */ + sigset_t sigset, old_sigset; + + assert(is_unicode); + + *is_unicode = 0; + + /* first 128 codes defaults to ASCII */ + for (i = 0; i < 128; i++) + buf[i] = i; + /* remaining defaults to replacement char (usually E_TABSZ = 256) */ + for (; i < E_TABSZ; i++) + buf[i] = 0xfffd; + + /* block SIGCHLD */ + sigemptyset(&sigset); + sigaddset(&sigset, SIGCHLD); + sigprocmask(SIG_BLOCK, &sigset, &old_sigset); + + do { + if (NULL == fgets(buffer, sizeof(buffer), fp)) { + if (feof(fp)) + break; + else { + perror("uni_screen_map_read_ascii() can't read line"); + exit(2); + } + } + + /* get "charset-relative charcode", stripping leading spaces */ + p = strtok(buffer, " \t\n"); + + /* skip empty lines and comments */ + if (!p || *p == '#') + continue; + + /* get unicode mapping */ + q = strtok(NULL, " \t\n"); + if (q) { + in = ctoi(p, NULL); + if (in < 0 || in > 255) { + ret_code = -1; + break; + } + + on = ctoi(q, &tmp_is_unicode); + if (in < 0 && on > 65535) { + ret_code = -1; + break; + } + + *is_unicode |= tmp_is_unicode; + buf[in] = on; + } else { + ret_code = -1; + break; + } } - else - { - ret_code = -1; - break; - } - } - while (1); /* terminated by break on feof() */ + while (1); /* terminated by break on feof() */ - /* restore sig mask */ - sigprocmask (SIG_SETMASK, &old_sigset, NULL); + /* restore sig mask */ + sigprocmask(SIG_SETMASK, &old_sigset, NULL); - return ret_code; + return ret_code; } -int old_screen_map_read_ascii(FILE *fp, unsigned char buf[]) +int old_screen_map_read_ascii(FILE * fp, unsigned char buf[]) { - char buffer[256]; - int in, on; - char *p, *q; - - for (in=0; in<256; in++) buf[in]=in; - - while (fgets(buffer,sizeof(buffer)-1,fp)) - { - p = strtok(buffer," \t\n"); - - if (!p || *p == '#') - continue; - - q = strtok(NULL," \t\n#"); - if (q) - { - in = ctoi(p, NULL); - if (in < 0 || in > 255) return -1; - - on = ctoi(q, NULL); - if (in < 0 && on > 255) return -1; - - buf[in] = on; + char buffer[256]; + int in, on; + char *p, *q; + + for (in = 0; in < 256; in++) + buf[in] = in; + + while (fgets(buffer, sizeof(buffer) - 1, fp)) { + p = strtok(buffer, " \t\n"); + + if (!p || *p == '#') + continue; + + q = strtok(NULL, " \t\n#"); + if (q) { + in = ctoi(p, NULL); + if (in < 0 || in > 255) + return -1; + + on = ctoi(q, NULL); + if (in < 0 && on > 255) + return -1; + + buf[in] = on; + } else + return -1; } - else return -1; - } - - return(0); + + return (0); } @@ -270,172 +261,145 @@ int old_screen_map_read_ascii(FILE *fp, unsigned char buf[]) * * CAVEAT: will report valid UTF mappings using only 1 byte as 8-bit ones. */ -long int ctoi(unsigned char *s, int *is_unicode) +long int ctoi(unsigned char *s, int *is_unicode) { - int i; - size_t ls; - - ls = strlen(s); - if (is_unicode) *is_unicode = 0; - - /* hex-specified UCS2 */ - if ((strncmp(s,"U+",2) == 0) && - (strspn(s+2,"0123456789abcdefABCDEF") == ls-2)) - { - sscanf(s+2,"%x",&i); - if (is_unicode) *is_unicode = 1; - } - - /* hex-specified byte */ - else if ((ls <= 4) && (strncmp(s,"0x",2) == 0) && - (strspn(s+2,"0123456789abcdefABCDEF") == ls-2)) - sscanf(s+2,"%x",&i); - - /* oct-specified number (byte) */ - else if ((*s == '0') && - (strspn(s,"01234567") == ls)) - sscanf(s,"%o",&i); - - /* dec-specified number (byte) */ - else if (strspn(s,"0123456789") == ls) - sscanf(s,"%d",&i); - - /* single-byte quoted char */ - else if ((strlen(s) == 3) && (s[0] == '\'') && (s[2] == '\'')) - i=s[1]; - - /* multi-byte UTF8 quoted char */ - else if ((s[0] == '\'') && (s[ls-1] == '\'')) - { - s[ls-1] = 0; /* ensure we'll not "parse UTF too far" */ - i = utf8_to_ucs2(s+1); - if (is_unicode) *is_unicode = 1; - } - else - return(-1); - - return(i); + int i; + size_t ls; + + ls = strlen(s); + if (is_unicode) + *is_unicode = 0; + + /* hex-specified UCS2 */ + if ((strncmp(s, "U+", 2) == 0) && + (strspn(s + 2, "0123456789abcdefABCDEF") == ls - 2)) { + sscanf(s + 2, "%x", &i); + if (is_unicode) + *is_unicode = 1; + } + + /* hex-specified byte */ + else if ((ls <= 4) && (strncmp(s, "0x", 2) == 0) && + (strspn(s + 2, "0123456789abcdefABCDEF") == ls - 2)) + sscanf(s + 2, "%x", &i); + + /* oct-specified number (byte) */ + else if ((*s == '0') && (strspn(s, "01234567") == ls)) + sscanf(s, "%o", &i); + + /* dec-specified number (byte) */ + else if (strspn(s, "0123456789") == ls) + sscanf(s, "%d", &i); + + /* single-byte quoted char */ + else if ((strlen(s) == 3) && (s[0] == '\'') && (s[2] == '\'')) + i = s[1]; + + /* multi-byte UTF8 quoted char */ + else if ((s[0] == '\'') && (s[ls - 1] == '\'')) { + s[ls - 1] = 0; /* ensure we'll not "parse UTF too far" */ + i = utf8_to_ucs2(s + 1); + if (is_unicode) + *is_unicode = 1; + } else + return (-1); + + return (i); } -void saveoldmap(int fd, char *omfil) +void saveoldmap(int fd, char *omfil) { - FILE *fp; - char buf[E_TABSZ]; + FILE *fp; + char buf[E_TABSZ]; + #ifdef GIO_UNISCRNMAP - unicode xbuf[E_TABSZ]; - int is_old_map = 0; + unicode xbuf[E_TABSZ]; + int is_old_map = 0; - if (ioctl(fd,GIO_UNISCRNMAP,xbuf)) - { - perror("GIO_UNISCRNMAP ioctl error"); + if (ioctl(fd, GIO_UNISCRNMAP, xbuf)) { + perror("GIO_UNISCRNMAP ioctl error"); #endif - if (ioctl(fd,GIO_SCRNMAP,buf)) - { - perror("GIO_SCRNMAP ioctl error"); - exit(1); - } - else - is_old_map = 1; + if (ioctl(fd, GIO_SCRNMAP, buf)) { + perror("GIO_SCRNMAP ioctl error"); + exit(1); + } else + is_old_map = 1; #ifdef GIO_UNISCRNMAP - } + } #endif - - if ((fp = fopen(omfil, "w")) == NULL) - { - perror(omfil); - exit(1); - } + if ((fp = fopen(omfil, "w")) == NULL) { + perror(omfil); + exit(1); + } #ifdef GIO_UNISCRNMAP - if (is_old_map) - { + if (is_old_map) { #endif - if (fwrite(buf,E_TABSZ,1,fp) != 1) - { - perror("Error writing map to file"); - exit(1); - } + if (fwrite(buf, E_TABSZ, 1, fp) != 1) { + perror("Error writing map to file"); + exit(1); + } #ifdef GIO_UNISCRNMAP - } - else - if (fwrite(xbuf, sizeof(unicode) * E_TABSZ,1,fp) != 1) - { - perror("Error writing map to file"); - exit(1); + } else if (fwrite(xbuf, sizeof(unicode) * E_TABSZ, 1, fp) != 1) { + perror("Error writing map to file"); + exit(1); } #endif - - fclose(fp); + + fclose(fp); } -unicode utf8_to_ucs2 (char* buf) +unicode utf8_to_ucs2(char *buf) { - int utf_count = 0; - long utf_char; - unicode tc; - unsigned char c; - - do - { - c = *buf; - buf++; - - /* if byte should be part of multi-byte sequence */ - if(c & 0x80) - { - /* if we have already started to parse a UTF8 sequence */ - if (utf_count > 0 && (c & 0xc0) == 0x80) - { - utf_char = (utf_char << 6) | (c & 0x3f); - utf_count--; - if (utf_count == 0) - tc = utf_char; - else - continue; - } - else /* Possibly 1st char of a UTF8 sequence */ - { - if ((c & 0xe0) == 0xc0) - { - utf_count = 1; - utf_char = (c & 0x1f); - } - else if ((c & 0xf0) == 0xe0) - { - utf_count = 2; - utf_char = (c & 0x0f); - } - else if ((c & 0xf8) == 0xf0) - { - utf_count = 3; - utf_char = (c & 0x07); - } - else if ((c & 0xfc) == 0xf8) - { - utf_count = 4; - utf_char = (c & 0x03); - } - else if ((c & 0xfe) == 0xfc) - { - utf_count = 5; - utf_char = (c & 0x01); - } - else - utf_count = 0; - continue; - } - } - else /* not part of multi-byte sequence - treat as ASCII - * this makes incomplete sequences to be ignored - */ - { - tc = c; - utf_count = 0; - } - } - while (utf_count); - - return tc; -} + int utf_count = 0; + long utf_char; + unicode tc; + unsigned char c; + + do { + c = *buf; + buf++; + + /* if byte should be part of multi-byte sequence */ + if (c & 0x80) { + /* if we have already started to parse a UTF8 sequence */ + if (utf_count > 0 && (c & 0xc0) == 0x80) { + utf_char = (utf_char << 6) | (c & 0x3f); + utf_count--; + if (utf_count == 0) + tc = utf_char; + else + continue; + } else { /* Possibly 1st char of a UTF8 sequence */ + + if ((c & 0xe0) == 0xc0) { + utf_count = 1; + utf_char = (c & 0x1f); + } else if ((c & 0xf0) == 0xe0) { + utf_count = 2; + utf_char = (c & 0x0f); + } else if ((c & 0xf8) == 0xf0) { + utf_count = 3; + utf_char = (c & 0x07); + } else if ((c & 0xfc) == 0xf8) { + utf_count = 4; + utf_char = (c & 0x03); + } else if ((c & 0xfe) == 0xfc) { + utf_count = 5; + utf_char = (c & 0x01); + } else + utf_count = 0; + continue; + } + } else { /* not part of multi-byte sequence - treat as ASCII + * this makes incomplete sequences to be ignored + */ + tc = c; + utf_count = 0; + } + } + while (utf_count); + return tc; +} |