diff options
Diffstat (limited to 'usr.bin/f2c/sysdep.c')
-rw-r--r-- | usr.bin/f2c/sysdep.c | 442 |
1 files changed, 442 insertions, 0 deletions
diff --git a/usr.bin/f2c/sysdep.c b/usr.bin/f2c/sysdep.c new file mode 100644 index 0000000..81bc5af --- /dev/null +++ b/usr.bin/f2c/sysdep.c @@ -0,0 +1,442 @@ +/**************************************************************** +Copyright 1990, 1991, 1992, 1993 by AT&T Bell Laboratories and Bellcore. + +Permission to use, copy, modify, and distribute this software +and its documentation for any purpose and without fee is hereby +granted, provided that the above copyright notice appear in all +copies and that both that the copyright notice and this +permission notice and warranty disclaimer appear in supporting +documentation, and that the names of AT&T Bell Laboratories or +Bellcore or any of their entities not be used in advertising or +publicity pertaining to distribution of the software without +specific, written prior permission. + +AT&T and Bellcore disclaim all warranties with regard to this +software, including all implied warranties of merchantability +and fitness. In no event shall AT&T or Bellcore be liable for +any special, indirect or consequential damages or any damages +whatsoever resulting from loss of use, data or profits, whether +in an action of contract, negligence or other tortious action, +arising out of or in connection with the use or performance of +this software. +****************************************************************/ +#include "defs.h" +#include "usignal.h" + +char binread[] = "rb", textread[] = "r"; +char binwrite[] = "wb", textwrite[] = "w"; +char *c_functions = "c_functions"; +char *coutput = "c_output"; +char *initfname = "raw_data"; +char *initbname = "raw_data.b"; +char *blkdfname = "block_data"; +char *p1_file = "p1_file"; +char *p1_bakfile = "p1_file.BAK"; +char *sortfname = "init_file"; +char *proto_fname = "proto_file"; + +char link_msg[] = "-lf2c -lm"; /* was "-lF77 -lI77 -lm -lc"; */ + +#ifndef TMPDIR +#ifdef MSDOS +#define TMPDIR "" +#else +#define TMPDIR "/tmp" +#endif +#endif + +char *tmpdir = TMPDIR; + + void +Un_link_all(cdelete) +{ + if (!debugflag) { + unlink(c_functions); + unlink(initfname); + unlink(p1_file); + unlink(sortfname); + unlink(blkdfname); + if (cdelete && coutput) + unlink(coutput); + } + } + + void +set_tmp_names() +{ + int k; + if (debugflag == 1) + return; + k = strlen(tmpdir) + 16; + c_functions = (char *)ckalloc(7*k); + initfname = c_functions + k; + initbname = initfname + k; + blkdfname = initbname + k; + p1_file = blkdfname + k; + p1_bakfile = p1_file + k; + sortfname = p1_bakfile + k; + { +#ifdef MSDOS + char buf[64], *s, *t; + if (!*tmpdir || *tmpdir == '.' && !tmpdir[1]) + t = ""; + else { + /* substitute \ for / to avoid confusion with a + * switch indicator in the system("sort ...") + * call in formatdata.c + */ + for(s = tmpdir, t = buf; *s; s++, t++) + if ((*t = *s) == '/') + *t = '\\'; + if (t[-1] != '\\') + *t++ = '\\'; + *t = 0; + t = buf; + } + sprintf(c_functions, "%sf2c_func", t); + sprintf(initfname, "%sf2c_rd", t); + sprintf(blkdfname, "%sf2c_blkd", t); + sprintf(p1_file, "%sf2c_p1f", t); + sprintf(p1_bakfile, "%sf2c_p1fb", t); + sprintf(sortfname, "%sf2c_sort", t); +#else + int pid = getpid(); + sprintf(c_functions, "%s/f2c%d_func", tmpdir, pid); + sprintf(initfname, "%s/f2c%d_rd", tmpdir, pid); + sprintf(blkdfname, "%s/f2c%d_blkd", tmpdir, pid); + sprintf(p1_file, "%s/f2c%d_p1f", tmpdir, pid); + sprintf(p1_bakfile, "%s/f2c%d_p1fb", tmpdir, pid); + sprintf(sortfname, "%s/f2c%d_sort", tmpdir, pid); +#endif + sprintf(initbname, "%s.b", initfname); + } + if (debugflag) + fprintf(diagfile, "%s %s %s %s %s %s\n", c_functions, + initfname, blkdfname, p1_file, p1_bakfile, sortfname); + } + + char * +c_name(s,ft)char *s; +{ + char *b, *s0; + int c; + + b = s0 = s; + while(c = *s++) + if (c == '/') + b = s; + if (--s < s0 + 3 || s[-2] != '.' + || ((c = *--s) != 'f' && c != 'F')) { + infname = s0; + Fatal("file name must end in .f or .F"); + } + *s = ft; + b = copys(b); + *s = c; + return b; + } + + static void +killed(sig) +{ + signal(SIGINT, SIG_IGN); +#ifdef SIGQUIT + signal(SIGQUIT, SIG_IGN); +#endif +#ifdef SIGHUP + signal(SIGHUP, SIG_IGN); +#endif + signal(SIGTERM, SIG_IGN); + Un_link_all(1); + exit(126); + } + + static void +sig1catch(sig) +{ + if (signal(sig, SIG_IGN) != SIG_IGN) + signal(sig, killed); + } + + static void +flovflo(sig) +{ + Fatal("floating exception during constant evaluation; cannot recover"); + /* vax returns a reserved operand that generates + an illegal operand fault on next instruction, + which if ignored causes an infinite loop. + */ + signal(SIGFPE, flovflo); +} + + void +sigcatch(sig) +{ + sig1catch(SIGINT); +#ifdef SIGQUIT + sig1catch(SIGQUIT); +#endif +#ifdef SIGHUP + sig1catch(SIGHUP); +#endif + sig1catch(SIGTERM); + signal(SIGFPE, flovflo); /* catch overflows */ + } + + +dofork() +{ +#ifdef MSDOS + Fatal("Only one Fortran input file allowed under MS-DOS"); +#else + int pid, status, w; + extern int retcode; + + if (!(pid = fork())) + return 1; + if (pid == -1) + Fatal("bad fork"); + while((w = wait(&status)) != pid) + if (w == -1) + Fatal("bad wait code"); + retcode |= status >> 8; +#endif + return 0; + } + +/* Initialization of tables that change with the character set... */ + +char escapes[Table_size]; + +#ifdef non_ASCII +char *str_fmt[Table_size]; +static char *str0fmt[127] = { /*}*/ +#else +char *str_fmt[Table_size] = { +#endif + "\\000", "\\001", "\\002", "\\003", "\\004", "\\005", "\\006", "\\007", + "\\b", "\\t", "\\n", "\\013", "\\f", "\\r", "\\016", "\\017", + "\\020", "\\021", "\\022", "\\023", "\\024", "\\025", "\\026", "\\027", + "\\030", "\\031", "\\032", "\\033", "\\034", "\\035", "\\036", "\\037", + " ", "!", "\\\"", "#", "$", "%%", "&", "'", + "(", ")", "*", "+", ",", "-", ".", "/", + "0", "1", "2", "3", "4", "5", "6", "7", + "8", "9", ":", ";", "<", "=", ">", "?", + "@", "A", "B", "C", "D", "E", "F", "G", + "H", "I", "J", "K", "L", "M", "N", "O", + "P", "Q", "R", "S", "T", "U", "V", "W", + "X", "Y", "Z", "[", "\\\\", "]", "^", "_", + "`", "a", "b", "c", "d", "e", "f", "g", + "h", "i", "j", "k", "l", "m", "n", "o", + "p", "q", "r", "s", "t", "u", "v", "w", + "x", "y", "z", "{", "|", "}", "~" + }; + +#ifdef non_ASCII +char *chr_fmt[Table_size]; +static char *chr0fmt[127] = { /*}*/ +#else +char *chr_fmt[Table_size] = { +#endif + "\\0", "\\1", "\\2", "\\3", "\\4", "\\5", "\\6", "\\7", + "\\b", "\\t", "\\n", "\\13", "\\f", "\\r", "\\16", "\\17", + "\\20", "\\21", "\\22", "\\23", "\\24", "\\25", "\\26", "\\27", + "\\30", "\\31", "\\32", "\\33", "\\34", "\\35", "\\36", "\\37", + " ", "!", "\"", "#", "$", "%%", "&", "\\'", + "(", ")", "*", "+", ",", "-", ".", "/", + "0", "1", "2", "3", "4", "5", "6", "7", + "8", "9", ":", ";", "<", "=", ">", "?", + "@", "A", "B", "C", "D", "E", "F", "G", + "H", "I", "J", "K", "L", "M", "N", "O", + "P", "Q", "R", "S", "T", "U", "V", "W", + "X", "Y", "Z", "[", "\\\\", "]", "^", "_", + "`", "a", "b", "c", "d", "e", "f", "g", + "h", "i", "j", "k", "l", "m", "n", "o", + "p", "q", "r", "s", "t", "u", "v", "w", + "x", "y", "z", "{", "|", "}", "~" + }; + + void +fmt_init() +{ + static char *str1fmt[6] = + { "\\b", "\\t", "\\n", "\\f", "\\r", "\\%03o" }; + register int i, j; + register char *s; + + /* str_fmt */ + +#ifdef non_ASCII + i = 0; +#else + i = 127; +#endif + for(; i < Table_size; i++) + str_fmt[i] = "\\%03o"; +#ifdef non_ASCII + for(i = 32; i < 127; i++) { + s = str0fmt[i]; + str_fmt[*(unsigned char *)s] = s; + } + str_fmt['"'] = "\\\""; +#else + if (Ansi == 1) + str_fmt[7] = chr_fmt[7] = "\\a"; +#endif + + /* chr_fmt */ + +#ifdef non_ASCII + for(i = 0; i < 32; i++) + chr_fmt[i] = chr0fmt[i]; +#else + i = 127; +#endif + for(; i < Table_size; i++) + chr_fmt[i] = "\\%o"; +#ifdef non_ASCII + for(i = 32; i < 127; i++) { + s = chr0fmt[i]; + j = *(unsigned char *)s; + if (j == '\\') + j = *(unsigned char *)(s+1); + chr_fmt[j] = s; + } +#endif + + /* escapes (used in lex.c) */ + + for(i = 0; i < Table_size; i++) + escapes[i] = i; + for(s = "btnfr0", i = 0; i < 6; i++) + escapes[*(unsigned char *)s++] = "\b\t\n\f\r"[i]; + /* finish str_fmt and chr_fmt */ + + if (Ansi) + str1fmt[5] = "\\v"; + if ('\v' == 'v') { /* ancient C compiler */ + str1fmt[5] = "v"; +#ifndef non_ASCII + escapes['v'] = 11; +#endif + } + else + escapes['v'] = '\v'; + for(s = "\b\t\n\f\r\v", i = 0; j = *(unsigned char *)s++;) + str_fmt[j] = chr_fmt[j] = str1fmt[i++]; + /* '\v' = 11 for both EBCDIC and ASCII... */ + chr_fmt[11] = Ansi ? "\\v" : "\\13"; + } + + + +/* Unless SYSTEM_SORT is defined, the following gives a simple + * in-core version of dsort(). On Fortran source with huge DATA + * statements, the in-core version may exhaust the available memory, + * in which case you might either recompile this source file with + * SYSTEM_SORT defined (if that's reasonable on your system), or + * replace the dsort below with a more elaborate version that + * does a merging sort with the help of auxiliary files. + */ + +#ifdef SYSTEM_SORT + +dsort(from, to) + char *from, *to; +{ + char buf[200]; + sprintf(buf, "sort <%s >%s", from, to); + return system(buf) >> 8; + } +#else + + static int +compare(a,b) + char *a, *b; +{ return strcmp(*(char **)a, *(char **)b); } + +dsort(from, to) + char *from, *to; +{ + extern char *Alloc(); + + struct Memb { + struct Memb *next; + int n; + char buf[32000]; + }; + typedef struct Memb memb; + memb *mb, *mb1; + register char *x, *x0, *xe; + register int c, n; + FILE *f; + char **z, **z0; + int nn = 0; + + f = opf(from, textread); + mb = (memb *)Alloc(sizeof(memb)); + mb->next = 0; + x0 = x = mb->buf; + xe = x + sizeof(mb->buf); + n = 0; + for(;;) { + c = getc(f); + if (x >= xe && (c != EOF || x != x0)) { + if (!n) + return 126; + nn += n; + mb->n = n; + mb1 = (memb *)Alloc(sizeof(memb)); + mb1->next = mb; + mb = mb1; + memcpy(mb->buf, x0, n = x-x0); + x0 = mb->buf; + x = x0 + n; + xe = x0 + sizeof(mb->buf); + n = 0; + } + if (c == EOF) + break; + if (c == '\n') { + ++n; + *x++ = 0; + x0 = x; + } + else + *x++ = c; + } + clf(&f, from, 1); + f = opf(to, textwrite); + if (x > x0) { /* shouldn't happen */ + *x = 0; + ++n; + } + mb->n = n; + nn += n; + if (!nn) /* shouldn't happen */ + goto done; + z = z0 = (char **)Alloc(nn*sizeof(char *)); + for(mb1 = mb; mb1; mb1 = mb1->next) { + x = mb1->buf; + n = mb1->n; + for(;;) { + *z++ = x; + if (--n <= 0) + break; + while(*x++); + } + } + qsort((char *)z0, nn, sizeof(char *), compare); + for(n = nn, z = z0; n > 0; n--) + fprintf(f, "%s\n", *z++); + free((char *)z0); + done: + clf(&f, to, 1); + do { + mb1 = mb->next; + free((char *)mb); + } + while(mb = mb1); + return 0; + } +#endif |