diff options
Diffstat (limited to 'Build/source/utils/pmx/pmx-2.6.17/libf2c/open.c')
| -rw-r--r-- | Build/source/utils/pmx/pmx-2.6.17/libf2c/open.c | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/Build/source/utils/pmx/pmx-2.6.17/libf2c/open.c b/Build/source/utils/pmx/pmx-2.6.17/libf2c/open.c new file mode 100644 index 00000000000..6e3def121df --- /dev/null +++ b/Build/source/utils/pmx/pmx-2.6.17/libf2c/open.c @@ -0,0 +1,299 @@ +#include "f2c.h" +#include "fio.h" +#include "string.h" +#ifndef NON_POSIX_STDIO +#ifdef MSDOS +#include "io.h" +#else +#include "unistd.h" /* for access */ +#endif +#endif + +#ifdef KR_headers +extern char *malloc(); +#ifdef NON_ANSI_STDIO +extern char *mktemp(); +#endif +extern integer f_clos(); +#else +#undef abs +#undef min +#undef max +#include "stdlib.h" +#ifdef __cplusplus +extern "C" { +#endif +extern int f__canseek(FILE*); +extern integer f_clos(cllist*); +#endif + +#ifdef NON_ANSI_RW_MODES +char *f__r_mode[2] = {"r", "r"}; +char *f__w_mode[4] = {"w", "w", "r+w", "r+w"}; +#else +char *f__r_mode[2] = {"rb", "r"}; +char *f__w_mode[4] = {"wb", "w", "r+b", "r+"}; +#endif + + static char f__buf0[400], *f__buf = f__buf0; + int f__buflen = (int)sizeof(f__buf0); + + static void +#ifdef KR_headers +f__bufadj(n, c) int n, c; +#else +f__bufadj(int n, int c) +#endif +{ + unsigned int len; + char *nbuf, *s, *t, *te; + + if (f__buf == f__buf0) + f__buflen = 1024; + while(f__buflen <= n) + f__buflen <<= 1; + len = (unsigned int)f__buflen; + if (len != f__buflen || !(nbuf = (char*)malloc(len))) + f__fatal(113, "malloc failure"); + s = nbuf; + t = f__buf; + te = t + c; + while(t < te) + *s++ = *t++; + if (f__buf != f__buf0) + free(f__buf); + f__buf = nbuf; + } + + int +#ifdef KR_headers +f__putbuf(c) int c; +#else +f__putbuf(int c) +#endif +{ + char *s, *se; + int n; + + if (f__hiwater > f__recpos) + f__recpos = f__hiwater; + n = f__recpos + 1; + if (n >= f__buflen) + f__bufadj(n, f__recpos); + s = f__buf; + se = s + f__recpos; + if (c) + *se++ = c; + *se = 0; + for(;;) { + fputs(s, f__cf); + s += strlen(s); + if (s >= se) + break; /* normally happens the first time */ + putc(*s++, f__cf); + } + return 0; + } + + void +#ifdef KR_headers +x_putc(c) +#else +x_putc(int c) +#endif +{ + if (f__recpos >= f__buflen) + f__bufadj(f__recpos, f__buflen); + f__buf[f__recpos++] = c; + } + +#define opnerr(f,m,s) {if(f) errno= m; else opn_err(m,s,a); return(m);} + + static void +#ifdef KR_headers +opn_err(m, s, a) int m; char *s; olist *a; +#else +opn_err(int m, char *s, olist *a) +#endif +{ + if (a->ofnm) { + /* supply file name to error message */ + if (a->ofnmlen >= f__buflen) + f__bufadj((int)a->ofnmlen, 0); + g_char(a->ofnm, a->ofnmlen, f__curunit->ufnm = f__buf); + } + f__fatal(m, s); + } + +#ifdef KR_headers +integer f_open(a) olist *a; +#else +integer f_open(olist *a) +#endif +{ unit *b; + integer rv; + char buf[256], *s; + cllist x; + int ufmt; + FILE *tf; +#ifndef NON_UNIX_STDIO + int n; +#endif + f__external = 1; + if(a->ounit>=MXUNIT || a->ounit<0) + err(a->oerr,101,"open") + if (!f__init) + f_init(); + f__curunit = b = &f__units[a->ounit]; + if(b->ufd) { + if(a->ofnm==0) + { + same: if (a->oblnk) + b->ublnk = *a->oblnk == 'z' || *a->oblnk == 'Z'; + return(0); + } +#ifdef NON_UNIX_STDIO + if (b->ufnm + && strlen(b->ufnm) == a->ofnmlen + && !strncmp(b->ufnm, a->ofnm, (unsigned)a->ofnmlen)) + goto same; +#else + g_char(a->ofnm,a->ofnmlen,buf); + if (f__inode(buf,&n) == b->uinode && n == b->udev) + goto same; +#endif + x.cunit=a->ounit; + x.csta=0; + x.cerr=a->oerr; + if ((rv = f_clos(&x)) != 0) + return rv; + } + b->url = (int)a->orl; + b->ublnk = a->oblnk && (*a->oblnk == 'z' || *a->oblnk == 'Z'); + if(a->ofm==0) + { if(b->url>0) b->ufmt=0; + else b->ufmt=1; + } + else if(*a->ofm=='f' || *a->ofm == 'F') b->ufmt=1; + else b->ufmt=0; + ufmt = b->ufmt; +#ifdef url_Adjust + if (b->url && !ufmt) + url_Adjust(b->url); +#endif + if (a->ofnm) { + g_char(a->ofnm,a->ofnmlen,buf); + if (!buf[0]) + opnerr(a->oerr,107,"open") + } + else + sprintf(buf, "fort.%ld", (long)a->ounit); + b->uscrtch = 0; + b->uend=0; + b->uwrt = 0; + b->ufd = 0; + b->urw = 3; + switch(a->osta ? *a->osta : 'u') + { + case 'o': + case 'O': +#ifdef NON_POSIX_STDIO + if (!(tf = FOPEN(buf,"r"))) + opnerr(a->oerr,errno,"open") + fclose(tf); +#else + if (access(buf,0)) + opnerr(a->oerr,errno,"open") +#endif + break; + case 's': + case 'S': + b->uscrtch=1; +#ifdef NON_ANSI_STDIO + (void) strcpy(buf,"tmp.FXXXXXX"); + (void) mktemp(buf); + goto replace; +#else + if (!(b->ufd = tmpfile())) + opnerr(a->oerr,errno,"open") + b->ufnm = 0; +#ifndef NON_UNIX_STDIO + b->uinode = b->udev = -1; +#endif + b->useek = 1; + return 0; +#endif + + case 'n': + case 'N': +#ifdef NON_POSIX_STDIO + if ((tf = FOPEN(buf,"r")) || (tf = FOPEN(buf,"a"))) { + fclose(tf); + opnerr(a->oerr,128,"open") + } +#else + if (!access(buf,0)) + opnerr(a->oerr,128,"open") +#endif + /* no break */ + case 'r': /* Fortran 90 replace option */ + case 'R': +#ifdef NON_ANSI_STDIO + replace: +#endif + if (tf = FOPEN(buf,f__w_mode[0])) + fclose(tf); + } + + b->ufnm=(char *) malloc((unsigned int)(strlen(buf)+1)); + if(b->ufnm==NULL) opnerr(a->oerr,113,"no space"); + (void) strcpy(b->ufnm,buf); + if ((s = a->oacc) && b->url) + ufmt = 0; + if(!(tf = FOPEN(buf, f__w_mode[ufmt|2]))) { + if (tf = FOPEN(buf, f__r_mode[ufmt])) + b->urw = 1; + else if (tf = FOPEN(buf, f__w_mode[ufmt])) { + b->uwrt = 1; + b->urw = 2; + } + else + err(a->oerr, errno, "open"); + } + b->useek = f__canseek(b->ufd = tf); +#ifndef NON_UNIX_STDIO + if((b->uinode = f__inode(buf,&b->udev)) == -1) + opnerr(a->oerr,108,"open") +#endif + if(b->useek) + if (a->orl) + rewind(b->ufd); + else if ((s = a->oacc) && (*s == 'a' || *s == 'A') + && FSEEK(b->ufd, 0L, SEEK_END)) + opnerr(a->oerr,129,"open"); + return(0); +} + + int +#ifdef KR_headers +fk_open(seq,fmt,n) ftnint n; +#else +fk_open(int seq, int fmt, ftnint n) +#endif +{ char nbuf[10]; + olist a; + (void) sprintf(nbuf,"fort.%ld",(long)n); + a.oerr=1; + a.ounit=n; + a.ofnm=nbuf; + a.ofnmlen=strlen(nbuf); + a.osta=NULL; + a.oacc= (char*)(seq==SEQ?"s":"d"); + a.ofm = (char*)(fmt==FMT?"f":"u"); + a.orl = seq==DIR?1:0; + a.oblnk=NULL; + return(f_open(&a)); +} +#ifdef __cplusplus +} +#endif |