Patch from Denis Vlasenko to add xstat() and use it.

This commit is contained in:
Rob Landley 2006-03-13 15:45:16 +00:00
parent 965030e35a
commit c5b1d4d6b1
12 changed files with 26 additions and 25 deletions

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@ -103,9 +103,7 @@ int gunzip_main(int argc, char **argv)
src_fd = bb_xopen(old_path, O_RDONLY); src_fd = bb_xopen(old_path, O_RDONLY);
/* Get the time stamp on the input file. */ /* Get the time stamp on the input file. */
if (stat(old_path, &stat_buf) < 0) { xstat(old_path, &stat_buf);
bb_error_msg_and_die("Couldn't stat file %s", old_path);
}
} }
/* Check that the input is sane. */ /* Check that the input is sane. */

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@ -165,8 +165,7 @@ int date_main(int argc, char **argv)
if(filename) { if(filename) {
struct stat statbuf; struct stat statbuf;
if(stat(filename,&statbuf)) xstat(filename,&statbuf);
bb_perror_msg_and_die("File '%s' not found.", filename);
tm=statbuf.st_mtime; tm=statbuf.st_mtime;
} else time(&tm); } else time(&tm);
memcpy(&tm_time, localtime(&tm), sizeof(tm_time)); memcpy(&tm_time, localtime(&tm), sizeof(tm_time));

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@ -105,9 +105,7 @@ int uuencode_main(int argc, char **argv)
switch (argc - optind) { switch (argc - optind) {
case 2: case 2:
src_stream = bb_xfopen(argv[optind], "r"); src_stream = bb_xfopen(argv[optind], "r");
if (stat(argv[optind], &stat_buf) < 0) { xstat(argv[optind], &stat_buf);
bb_perror_msg_and_die("stat");
}
mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); mode = stat_buf.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
if (src_stream == stdout) { if (src_stream == stdout) {
puts("NULL"); puts("NULL");

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@ -53,8 +53,8 @@ pid_is_exec(pid_t pid, const char *name)
char buf[32]; char buf[32];
struct stat sb, exec_stat; struct stat sb, exec_stat;
if (name && stat(name, &exec_stat)) if (name)
bb_perror_msg_and_die("stat %s", name); xstat(name, &exec_stat);
sprintf(buf, "/proc/%d/exe", pid); sprintf(buf, "/proc/%d/exe", pid);
if (stat(buf, &sb) != 0) if (stat(buf, &sb) != 0)

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@ -274,15 +274,13 @@ int find_main(int argc, char **argv)
xdev_dev = xmalloc ( xdev_count * sizeof( dev_t )); xdev_dev = xmalloc ( xdev_count * sizeof( dev_t ));
if ( firstopt == 1 ) { if ( firstopt == 1 ) {
if ( stat ( ".", &stbuf ) < 0 ) xstat ( ".", &stbuf );
bb_error_msg_and_die("could not stat '.'" );
xdev_dev [0] = stbuf. st_dev; xdev_dev [0] = stbuf. st_dev;
} }
else { else {
for (i = 1; i < firstopt; i++) { for (i = 1; i < firstopt; i++) {
if ( stat ( argv [i], &stbuf ) < 0 ) xstat ( argv [i], &stbuf );
bb_error_msg_and_die("could not stat '%s'", argv [i] );
xdev_dev [i-1] = stbuf. st_dev; xdev_dev [i-1] = stbuf. st_dev;
} }
} }
@ -292,8 +290,7 @@ int find_main(int argc, char **argv)
struct stat stat_newer; struct stat stat_newer;
if (++i == argc) if (++i == argc)
bb_error_msg_and_die(msg_req_arg, "-newer"); bb_error_msg_and_die(msg_req_arg, "-newer");
if (stat (argv[i], &stat_newer) != 0) xstat (argv[i], &stat_newer);
bb_error_msg_and_die("file %s not found", argv[i]);
newer_mtime = stat_newer.st_mtime; newer_mtime = stat_newer.st_mtime;
#endif #endif
#ifdef CONFIG_FEATURE_FIND_INUM #ifdef CONFIG_FEATURE_FIND_INUM

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@ -122,6 +122,8 @@ extern FILE *bb_xfopen(const char *path, const char *mode);
extern int bb_fclose_nonstdin(FILE *f); extern int bb_fclose_nonstdin(FILE *f);
extern void bb_fflush_stdout_and_exit(int retval) ATTRIBUTE_NORETURN; extern void bb_fflush_stdout_and_exit(int retval) ATTRIBUTE_NORETURN;
extern void xstat(const char *filename, struct stat *buf);
#define BB_GETOPT_ERROR 0x80000000UL #define BB_GETOPT_ERROR 0x80000000UL
extern const char *bb_opt_complementally; extern const char *bb_opt_complementally;
extern const struct option *bb_applet_long_options; extern const struct option *bb_applet_long_options;

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@ -26,7 +26,7 @@ LIBBB-y:= \
restricted_shell.c run_parts.c run_shell.c safe_read.c safe_write.c \ restricted_shell.c run_parts.c run_shell.c safe_read.c safe_write.c \
safe_strncpy.c setup_environment.c sha1.c simplify_path.c \ safe_strncpy.c setup_environment.c sha1.c simplify_path.c \
trim.c u_signal_names.c vdprintf.c verror_msg.c \ trim.c u_signal_names.c vdprintf.c verror_msg.c \
vherror_msg.c vperror_msg.c wfopen.c xconnect.c xgetcwd.c \ vherror_msg.c vperror_msg.c wfopen.c xconnect.c xgetcwd.c xstat.c \
xgethostbyname.c xgethostbyname2.c xreadlink.c xregcomp.c xgetlarg.c \ xgethostbyname.c xgethostbyname2.c xreadlink.c xregcomp.c xgetlarg.c \
get_terminal_width_height.c fclose_nonstdin.c fflush_stdout_and_exit.c \ get_terminal_width_height.c fclose_nonstdin.c fflush_stdout_and_exit.c \
getopt_ulflags.c default_error_retval.c wfopen_input.c speed_table.c \ getopt_ulflags.c default_error_retval.c wfopen_input.c speed_table.c \

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@ -76,9 +76,7 @@ int run_parts(char **args, const unsigned char test_mode, char **env)
filename = concat_path_file(arg0, namelist[i]->d_name); filename = concat_path_file(arg0, namelist[i]->d_name);
if (stat(filename, &st) < 0) { xstat(filename, &st);
bb_perror_msg_and_die("failed to stat component %s", filename);
}
if (S_ISREG(st.st_mode) && !access(filename, X_OK)) { if (S_ISREG(st.st_mode) && !access(filename, X_OK)) {
if (test_mode) { if (test_mode) {
puts(filename); puts(filename);

11
libbb/xstat.c Normal file
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@ -0,0 +1,11 @@
/*
* xstat.c - a stat() which dies on failure with meaningful error message
*/
#include <unistd.h>
#include "libbb.h"
void xstat(const char *name, struct stat *stat_buf)
{
if (stat(name, stat_buf))
bb_perror_msg_and_die("Can't stat '%s'", name);
}

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@ -1871,8 +1871,7 @@ static void process_dev (char *devname)
#ifndef HDIO_DRIVE_CMD #ifndef HDIO_DRIVE_CMD
int force_operation = 0; int force_operation = 0;
#endif #endif
if (stat(devname,&stat_buf)) xstat(devname,&stat_buf);
bb_perror_msg_and_die(devname);
switch(major(stat_buf.st_rdev)) switch(major(stat_buf.st_rdev))
{ {

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@ -23,8 +23,7 @@ static int swap_enable_disable(const char *device)
int status; int status;
struct stat st; struct stat st;
if (stat(device, &st) < 0) xstat(device, &st);
bb_perror_msg_and_die("cannot stat %s", device);
/* test for holes */ /* test for holes */
if (S_ISREG(st.st_mode)) if (S_ISREG(st.st_mode))