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/*
io.c.
Local I/O routines for ksymoops.
Copyright Keith Owens <kaos@ocs.com.au>.
Released under the GNU Public Licence, Version 2.
Tue Nov 3 02:31:01 EST 1998
Version 0.6
fwrite_local is redundant, replaced by bfd.
Wed Oct 28 13:47:23 EST 1998
Version 0.4
Split into separate sources.
*/
#include "ksymoops.h"
#include <errno.h>
#include <malloc.h>
#include <string.h>
#include <sys/stat.h>
int regular_file(const char *file, const char *msg)
{
struct stat statbuf;
if (stat(file, &statbuf)) {
fprintf(stderr, "%s: %s stat %s failed",
prefix, msg, file);
perror(" ");
++errors;
return 0;
}
if (!S_ISREG(statbuf.st_mode)) {
fprintf(stderr,
"%s: %s %s is not a regular file, ignored\n",
prefix, msg, file);
++errors;
return 0;
}
return 1;
}
FILE *fopen_local(const char *file, const char *mode, const char *msg)
{
FILE *f;
if (!(f = fopen(file, mode))) {
fprintf(stderr, "%s: %s fopen '%s' failed",
prefix, msg, file);
perror(" ");
++errors;
}
return f;
}
void fclose_local(FILE *f, const char *msg)
{
int i;
if ((i = fclose(f))) {
fprintf(stderr, "%s: %s fclose failed %d", prefix, msg, i);
perror(" ");
++errors;
}
}
/* Read a line, increasing the size of the line as necessary until \n is read */
#define INCREMENT 10 /* arbitrary */
char *fgets_local(char **line, int *size, FILE *f, const char *msg)
{
char *l, *p, *r;
int longline = 1;
if (!*line) {
*size = INCREMENT;
*line = malloc(*size);
if (!*line)
malloc_error("fgets_local alloc line");
}
l = *line;
while (longline) {
r = fgets(l, *size-(l-*line), f);
if (!r) {
if (ferror(f)) {
fprintf(stderr,
"%s: %s fgets failed", prefix, msg);
perror(" ");
++errors;
}
if (l != *line)
return(*line);
else
return(r);
}
if (!(p = strchr(*line, '\n'))) {
*size += INCREMENT;
*line = realloc(*line, *size);
if (!*line)
malloc_error("fgets_local realloc line");
l = *line+*size-INCREMENT-1;
}
else {
*p = '\0';
longline = 0;
}
}
if (debug > 3)
fprintf(stderr, "DEBUG: %s line '%s'\n", msg, *line);
return(*line);
}
FILE *popen_local(const char *cmd, const char *msg)
{
FILE *f;
if (!(f = popen(cmd, "r"))) {
fprintf(stderr, "%s: %s popen '%s' failed",
prefix, msg, cmd);
perror(" ");
++errors;
}
return f;
}
void pclose_local(FILE *f, const char *msg)
{
int i;
errno = 0;
if ((i = pclose(f))) {
fprintf(stderr, "%s: %s pclose failed 0x%x", prefix, msg, i);
if (errno)
perror(" ");
else
fprintf(stderr, "\n");
++errors;
}
}
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